Is a pressor necessary during aortic perfusion and oxygenation therapy of cardiac arrest?

Abstract:
STUDY OBJECTIVE Occlusion of the descending aorta and infusion of oxygenated ultrapurified polymerized bovine hemoglobin may improve the efficacy of advanced cardiac life support (ACLS). Because selective aortic perfusion and oxygenation (SAPO) directly increases coronary perfusion pressure, exogenous epinephrine may not be required. The purpose of this study was to determine whether exogenous epinephrine is necessary during SAPO by comparing the rate of return of spontaneous circulation and aortic and coronary perfusion pressures during ACLS-SAPO in animals treated with either intra-aortic epinephrine or saline solution.
METHODS A prospective, randomized, interventional before-after trial with a canine model of ventricular fibrillation cardiac arrest and ACLS based on external chest compression was performed. The ECG, right atrial, aortic arch, and esophageal pulse pressures were measured continuously. A descending aortic occlusion balloon catheter was placed through the femoral artery. Ventricular fibrillation was induced, and no therapy was given during the 10-minute arrest time. Basic life support was then initiated and normalized by standardization of esophageal pulse pressure and central aortic blood gases. After 3 minutes of basic life support, the aortic occlusion balloon was inflated, and 0.01 mg/kg epinephrine or saline solution was administered through the aortic catheter followed by 450 mL of ultrapurified polymerized bovine hemoglobin over 2 minutes. Defibrillation was then attempted. The outcomes and changes in intravascular pressures were compared.
RESULTS Aortic pressures were higher during infusions in animals treated with epinephrine. During infusion, the mean aortic relaxation pressure increased by 58+/-5 mm Hg in animals that had received epinephrine versus 20+/-11 mm Hg in those that had received saline placebo. The coronary perfusion pressure during infusion increased by 52+/-8 mm Hg in animals that had received epinephrine versus 26+/-10 mm Hg in those that had received saline. Only 2 of 7 animals in the placebo group had return of spontaneous circulation versus 7 of 8 in the epinephrine group.
CONCLUSION The addition of epinephrine to ACLS-SAPO increases vital organ perfusion pressures and improves outcome from cardiac arrest. There appears to be a profound loss of arterial vasomotor tone after prolonged arrest. This loss of vasomotor tone may make exogenous pressors necessary for resuscitation after prolonged cardiac arrest.


Do people who were passive smokers during childhood have increased risk of long-term work disability?

Abstract:
BACKGROUND Regular inhalation of tobacco smoke, whether it be voluntary or not, may have profound negative effects on the body. Also intervertebral discs may be affected. The objective of the present study was to test the hypothesis that nurses' aides who were exposed to environmental tobacco smoke (ETS) at home during childhood have an increased risk of long-term sick leave.
METHODS The sample comprised 5563 Norwegian nurses' aides, not on sick leave when they completed a mailed questionnaire in 1999. Of these, 4744 (85.3%) completed a second questionnaire 15 months later. The outcome measure was the incidence proportion of long-term sick leave during the 12 months prior to the follow-up.
RESULTS Respondents who reported at baseline that they had been exposed to ETS at home during childhood had increased risk of sick leave exceeding 14 days attributed to neck pain (odds ratio (OR) = 1.34; 95% confidence interval (CI): 1.04-1.73), high back pain (OR=1.49; CI: 1.07-2.06), low back pain (OR=1.21; CI: 0.97-1.50), and any illness (OR=1.23; CI: 1.07-1.42), after adjustments for demographic and familial characteristics, former smoking, current smoking, physical leisure-time activities, work factors, prior neck injury, and affective symptoms. They also had increased risk of sick leave exceeding 8 weeks (OR=1.29; CI: 1.08-1.55).
CONCLUSION The study supports the hypothesis that nurses' aides who were exposed to ETS at home during childhood have an increased risk of long-term sickness absence.


Is the covering of the resection margin after distal pancreatectomy advantageous?

Abstract:
BACKGROUND In recent years, many advances in pancreatic surgery have been achieved. Nevertheless, the rate of pancreatic fistula following pancreatic tail resection does not differ between various techniques, still reaching up to 30% in prospective multicentric studies. Taking into account contradictory results concerning the usefulness of covering resection margins after distal pancreatectomy, we sought to perform a systematic, retrospective analysis of patients that underwent distal pancreatectomy at our center.
METHODS We retrospectively analysed the data of 74 patients that underwent distal pancreatectomy between 2001 and 2011 at the community hospital in Neuss. Demographic factors, indications, postoperative complications, surgical or interventional revisions, and length of hospital stay were registered to compare the outcome of patients undergoing distal pancreatectomy with coverage of the resection margins vs. patients undergoing distal pancreatectomy without coverage of the resection margins. Differences between groups were calculated using Fisher's exact and Mann-Whitney U test.
RESULTS Main indications for pancreatic surgery were insulinoma (n=18, 24%), ductal adenocarcinoma (n=9, 12%), non-single-insulinoma-pancreatogenic-hypoglycemia-syndrome (NSIPHS) (n=8, 11%), and pancreatic cysts with pancreatitis (n=8, 11%). In 39 of 74 (53%) patients no postoperative complications were noted. In detail we found that 23/42 (55%) patients with coverage vs. 16/32 (50%) without coverage of the resection margins had no postoperative complications. The most common complications were pancreatic fistulas in eleven patients (15%), and postoperative bleeding in nine patients (12%). Pancreatic fistulas occurred in patients without coverage of the resection margins in 7/32 (22%) vs. 4/42 (1011%) with coverage are of the resection margins, yet without reaching statistical significance. Postoperative bleeding ensued with equal frequency in both groups (12% with coverage versus 13% without coverage of the resection margins). The reoperation rate was 8%. The hospital stay for patients without coverage was 13 days (5-60) vs. 17 days (8-60) for patients with coverage.
CONCLUSION The results show no significant difference in the fistula rate after covering of the resection margin after distal pancreatectomy, which contributes to the picture of an unsolved problem.


Does treatment duration affect outcome after radiotherapy for prostate cancer?

Abstract:
PURPOSE The protraction of external beam radiotherapy (RT) time is detrimental in several disease sites. In prostate cancer, the overall treatment time can be considerable, as can the potential for treatment breaks. We evaluated the effect of elapsed treatment time on outcome after RT for prostate cancer.
METHODS AND MATERIALS Between April 1989 and November 2004, 1,796 men with prostate cancer were treated with RT alone. The nontreatment day ratio (NTDR) was defined as the number of nontreatment days divided by the total elapsed days of RT. This ratio was used to account for the relationship between treatment duration and total RT dose. Men were stratified into low risk (n = 789), intermediate risk (n = 798), and high risk (n = 209) using a single-factor model.
RESULTS The 10-year freedom from biochemical failure (FFBF) rate was 68% for a NTDR<33% vs. 58% for NTDR>/=33% (p = 0.02; BF was defined as a prostate-specific antigen nadir + 2 ng/mL). In the low-risk group, the 10-year FFBF rate was 82% for NTDR<33% vs. 57% for NTDR>/=33% (p = 0.0019). The NTDR was independently predictive for FFBF (p = 0.03), in addition to T stage (p = 0.005) and initial prostate-specific antigen level (p<0.0001) on multivariate analysis, including Gleason score and radiation dose. The NTDR was not a significant predictor of FFBF when examined in the intermediate-risk group, high-risk group, or all risk groups combined.
CONCLUSION A proportionally longer treatment duration was identified as an adverse factor in low-risk patients. Treatment breaks resulting in a NTDR of>/=33% (e.g., four or more breaks during a 40-fraction treatment, 5 d/wk) should be avoided.


Is the urinary biomarkers assessment a non-invasive approach to tubular lesions of the solitary kidney?

Abstract:
INTRODUCTION The solitary kidney (SK) is currently debated in the literature, as living kidney donation is extensively used and the diagnosis of congenital SK is frequent. Tubulointerstitial lesions associated with adaptive phenomena may occur early within the SK.
AIMS Analysis of the significance of urinary biomarkers in the assessment of tubulointerstitial lesions of the SK.
METHODS A cross-sectional study of 37 patients with SK included 18 patients-acquired SK (mean age 56.44 ± 12.20 years, interval from nephrectomy 10.94 ± 9.37 years), 19 patients-congenital SK (mean age 41.52 ± 10.54 years). Urinary NAG, urinary alpha-1-microglobulin, albuminuria, eGFR (CKD-EPI equation) were measured.
RESULTS In acquired SK, NAG increased in 60.66%, urinary alpha 1-microglobulin in 16.66%, albuminuria in 55.55% of patients. Inverse correlation with eGFR presented NAG (R(2 )= 0.537, p = 0.022), urinary alpha 1-microglobulin (R(2 )= 0.702, p = 0.001), albuminuria (R(2 )= 0.655, p = 0.003). In congenital SK, NAG increased in 52.63%, urinary alpha 1-microglobulin in 5.26%, albuminuria in 47.36% of patients. In this group, urinary biomarkers correlated inversely with eGFR: NAG (R(2 )= 0.743, p < 0.001), urinary alpha 1-microglobulin (R(2 )= 0.701, p = 0.001), albuminuria (R(2 )= 0.821, p < 0.001). Significant correlations were found between the urinary biomarkers in both groups.
CONCLUSION Urinary biomarkers allow a non-invasive, sensitive, early assessment of the tubular lesions of the SK. Urinary biomarkers of PT injury parallel renal function decline, thus complementing the estimation of GFR. Monitoring of PT dysfunction is mandatory in patients with SK.


Motor performance in chronic low back pain: is there an influence of pain-related cognitions?

Abstract:
BACKGROUND Chronic low back pain (CLBP) is often accompanied by an abnormal motor performance. However, it has not been clarified yet whether these deviations also occur during motor tasks not involving the back and whether the performance is influenced by pain and pain-related cognitions. Therefore, the aim of the present study is to get insight in the contribution of both pain experience and pain-related cognitions to general motor task performance in CLBP.
METHODS 13 CLBP patients and 15 healthy subjects performed a hand-function task in three conditions: sitting, lying prone (lying) and lying prone without trunk support (provoking). The last condition was assumed to provoke pain-related cognitions, which was considered successful when a patients' pain expectancy on a numeric rating scale was at least 1 point higher than actual pain experienced. Subjects' performance was expressed in reaction time and movement time. Repeated measures analysis of variance was performed to detect main effect for group and condition. Special interest was given to group*condition interaction, since significant interaction would indicate that patients and healthy subjects performed differently throughout the three conditions.
RESULTS Patients were slower throughout all conditions compared to healthy subjects. With respect to the provoking condition, patients showed deteriorated performance compared to lying while healthy subjects' performance remained equal between these two conditions. Further analysis of patients' data showed that provocation was successful in 54% of the patients. Especially this group showed deteriorated performance in the provoking condition.
CONCLUSION It can be concluded that CLBP patients in general have worse motor task performance compared to healthy subjects and that provoking pain-related cognitions further worsened performance.


Patient comprehension of emergency department care and instructions: are patients aware of when they do not understand?

Abstract:
STUDY OBJECTIVE To be able to adhere to discharge instructions after a visit to the emergency department (ED), patients should understand both the care that they received and their discharge instructions. The objective of this study is to assess, at discharge, patients' comprehension of their ED care and instructions and their awareness of deficiencies in their comprehension.
METHODS We conducted structured interviews of 140 adult English-speaking patients or their primary caregivers after ED discharge in 2 health systems. Participants rated their subjective understanding of 4 domains: (1) diagnosis and cause; (2) ED care; (3) post-ED care, and (4) return instructions. We assessed patient comprehension as the degree of agreement (concordance) between patients' recall of each of these domains and information obtained from chart review. Two authors scored each case independently and discussed discrepancies before providing a final concordance rating (no concordance, minimal concordance, partial concordance, near concordance, complete concordance).
RESULTS Seventy-eight percent of patients demonstrated deficient comprehension (less than complete concordance) in at least 1 domain; 51% of patients, in 2 or more domains. Greater than a third of these deficiencies (34%) involved patients' understanding of post-ED care, whereas only 15% were for diagnosis and cause. The majority of patients with comprehension deficits failed to perceive them. Patients perceived difficulty with comprehension only 20% of the time when they demonstrated deficient comprehension.
CONCLUSION Many patients do not understand their ED care or their discharge instructions. Moreover, most patients appear to be unaware of their lack of understanding and report inappropriate confidence in their comprehension and recall.


Can mandibular depiction be improved by changing the thickness of double-oblique computed tomography images?

Abstract:
PURPOSE Multislice helical computed tomography (CT), which can provide detailed 2-D and 3-D reconstructed images, is useful in imaging diagnosis for dental implant treatment. Therefore, in this study, it was performed to clarify the mandibular depiction of double-oblique reconstructed images when changing their thickness.
MATERIALS AND METHODS A total of 38 sites in the mandibular molar region were examined using multislice helical CT. The thicknesses of the double-oblique images using multislice helical CT scans were reconstructed in 4 conditions: 0.3 mm, 0.9 mm, 1.6 mm, and 4.1 mm. In double-oblique images, mandibular depiction was evaluated by 5 oral radiologists using a subjective rating score.
RESULTS In the alveolar crest and the whole of the mandibular canal, the highest value was obtained with 0.9 mm-thick images; however, there was no significant difference between 0.3 mm and 0.9 mm-thick images.
CONCLUSION We concluded that depiction of the superior wall of the mandibular canal cannot be improved by changing the thickness of images.


Adjuvant radiation of stage III thymoma: is it necessary?

Abstract:
BACKGROUND The criteria for administration of adjuvant radiation therapy after thymoma resection remains controversial, and it is unclear whether patients with Masaoka stage III thymoma benefit from adjuvant radiation. The goal of this report was to determine whether or not this group benefits from radiation therapy in disease-specific survival and disease-free survival.
METHODS Case records of the Massachusetts General Hospital were retrospectively reviewed from 1972 to 2004. One hundred and seventy-nine patients underwent resection for thymoma, of which 45 had stage III disease.
RESULTS Forty-five stage III patients underwent resection and in 36 it was complete. Thirty-eight stage III patients received radiation therapy. Baseline prognostic factors between radiated and nonradiated groups were similar. The addition of adjuvant radiotherapy did not alter local or distant recurrence rates in patients with stage III thymoma. Disease-specific survival at 10 years in stage III patients who did not receive radiation was 75% (95% confidence interval, 32% to 100%) and in patients who did receive radiation therapy it was 79% (95% confidence interval, 64% to 94%) (p = 0.21). The most common site of relapse was the pleura.
CONCLUSION Most patients who have stage III thymoma undergo complete resection. Some patients enjoy prolonged disease-free survival without adjuvant radiation after resection of stage III thymoma. Radiation does not seem to prevent pleural recurrences when given after resection of stage III thymomas. The use of routine adjuvant radiation after a complete resection of stage III thymoma needs to be re-addressed. There may be a role for the use of chemotherapy to reduce pleural recurrences.


Inhibin: a new circulating marker of hydatidiform mole?

Abstract:
OBJECTIVE To define the concentrations of inhibin in serum and tissue of patients with hydatidiform mole and assess their value as a clinical marker of the condition.
DESIGN Prospective study of new patients with hydatidiform mole, comparison of paired observations, and case-control analysis.
SETTING A university hospital, two large public hospitals, and a private women's clinic in Japan.
PATIENTS Seven consecutive referred patients seen over four months with newly diagnosed complete hydatidiform mole, including one in whom the mole was accompanied by viable twin fetuses (case excluded from statistical analysis because of unique clinical features). All patients followed up for six months after evacuation of molar tissue.
END POINT Correlation of serum inhibin concentrations with trophoblastic disease.
MEASUREMENTS AND MAIN RESULTS Serum concentrations of inhibin, human chorionic gonadotrophin, and follicle stimulating hormone were compared before and seven to 10 days after evacuation of the mole. Before evacuation the serum inhibin concentrations (median 8.3 U/ml; 95% confidence interval 2.4 to 34.5) were significantly greater than in 21 normal women at the same stage of pregnancy (2.8 U/ml; 2.1 to 3.6), and inhibin in molar tissue was also present in high concentrations (578 U/ml cytosol; 158 to 1162). Seven to 10 days after evacuation inhibin concentrations in serum samples from the same patients declined significantly to values (0.4 U/ml; 0.1 to 1.4) similar to those seen in the follicular phase of normal menstrual cycles. None of the four patients whose serum inhibin concentrations were 0.4 U/ml or less after evacuation developed persistent trophoblastic disease. Though serum human chorionic gonadotrophin concentrations declined after evacuation (6.6 x 10(3) IU/l; 0.8 x 10(3) to 32.6 x 10(3], they remained far higher than in non-pregnant women. Serum follicle stimulating hormone concentrations remained suppressed.
CONCLUSION In this small study serum inhibin concentrations higher than those found in the early follicular phase one to two weeks after evacuation of a hydatidiform mole seemed to be specific for persistent trophoblastic disease. Further data are needed to confirm these promising results.


Is the fibronectin-aggrecan complex present in cervical disk disease?

Abstract:
OBJECTIVE To investigate the presence of inflammatory cytokines and the fibronectin-aggrecan complex (FAC) in persons undergoing surgical treatment for cervical radiculopathy caused by disk herniation.
DESIGN Single-center, prospective, consecutive case series.
SETTING A single large academic institution.
PATIENTS A total of 11 patients with radiculopathic pain and magnetic resonance imaging findings positive for disk herniation elected to undergo single-level cervical diskectomy.
METHODS OR INTERVENTIONS Lavage was performed by needle injection and aspiration upon entering the disk space for fluoroscopic localization before diskectomy.
MAIN OUTCOME MEASUREMENTS The lavage fluid was assayed for pH and the FAC, as well as for the cytokines interleukin-6 (IL-6), interferon-γ, monocyte chemotactic protein (MCP), and macrophage inhibitory protein-1β.
RESULTS The subjects were 7 women and 4 men with a mean age of 50.6 years (SE 9.7; range, 36-70 years). The mean concentrations (SE; range) in picograms per milliliter were 7.9 (4.4; 0-44) for IL-6, 25.3 (15.5; 0-159) for interferon-γ, 16.1 (11.9; 0-121) for MCP, and 6.1 (2.8; 0-29) for macrophage inhibitory protein-1β. The optical density of the FAC at 450 nm was 0.151 (0.036; 0.1-0.32), and the pH was 6.68 (0.1; 6.10-7.15). Statistically significant correlations were found between MCP and FAC (P = .036) and between FAC and pH (P = .008).
CONCLUSION Biochemical analysis of injured cervical intervertebral disks reveals the presence of inflammatory markers such as MCP, fragments of structural matrix proteins such as FAC, and a correlation with pH. Further evaluation of the FAC as a potential diagnostic biomarker or therapeutic target is warranted in the cervical spine.


Does peritoneal dialysis affect halitosis in patients with end-stage renal disease?

Abstract:
OBJECTIVE There are various causes of halitosis, one of which is chronic renal failure. The objective of this study was to investigate halitosis levels in end-stage renal disease (ESRD) patients before and after peritoneal dialysis (PD) therapy.
METHODS 42 subjects with ESRD were included in this study. The presence of halitosis was assessed using an organoleptic measurement and compared with blood urea nitrogen (BUN) levels and salivary flow rates. Decayed, missing, and filled teeth (DMFT) index and Community Periodontal Index (CPI) were calculated. All measurements were done before and after patients had received 3 months of PD therapy.
RESULTS Mean serum BUN level was found to be lower (46.05 ± 13.30 vs 91.24 ± 31.28 mg/dL), salivary flow rate higher (0.34 ± 0.07 vs 0.26 ± 0.04 mL/minute), and halitosis level lower (2.39 ± 0.60 vs 3.90 ± 0.37) at the end of 3 months of PD therapy than at the beginning of PD therapy. There was no significant difference in CPI or DMFT index before and after PD therapy (p>0.05). There was statistically significant positive correlation between the presence of halitosis and BUN levels (r = 0.702, p = 0.001 before PD; r = 0.45, p = 0.002 after PD) and a negative correlation between the presence of halitosis and salivary flow rates (r = -0.69, p = 0.000 before PD; r = -0.37, p = 0.01 after PD).
CONCLUSION High BUN levels and low salivary flow rates were found to be associated with halitosis. PD may play an important role in decreasing the level of halitosis in ESRD patients.


Can elevated troponin I levels predict complicated clinical course and inhospital mortality in patients with acute pulmonary embolism?

Abstract:
OBJECTIVE The purpose of this study was to evaluate the value of elevated cardiac troponin I (cTnI) for prediction of complicated clinical course and in-hospital mortality in patients with confirmed acute pulmonary embolism (PE).
METHODS AND RESULTS This study was a retrospective chart review of patients diagnosed as having PE, in whom cTnI testing was obtained at emergency department (ED) presentation between January 2002 and April 2006. Clinical characteristics; echocardiographic right ventricular dysfunction; inhospital mortality; and adverse clinical events including need for inotropic support, mechanical ventilation, and thrombolysis were compared in patients with elevated cTnI levels vs patients with normal cTnI levels. One hundred sixteen patients with PE were identified, and 77 of them (66%) were included in the study. Thirty-three patients (42%) had elevated cTnI levels. Elevated cTnI levels were associated with inhospital mortality (P = .02), complicated clinical course (P<.001), and right ventricular dysfunction (P<.001). In patients with elevated cTnI levels, inhospital mortality (odds ratio [OR], 3.31; 95% confidence interval [CI], 1.82-9.29), hypotension (OR, 7.37; 95% CI, 2.31-23.28), thrombolysis (OR, 5.71; 95% CI, 1.63-19.92), need for mechanical ventilation (OR, 5.00; 95% CI, 1.42-17.57), and need for inotropic support (OR, 3.02; 95% CI, 1.03-8.85) were more prevalent. The patients with elevated cTnI levels had more serious vital parameters (systolic blood pressure, pulse, and oxygen saturation) at ED presentation.
CONCLUSION Our results indicate that elevated cTnI levels are associated with higher risk for inhospital mortality and complicated clinical course. Troponin I may play an important role for the risk assessment of patients with PE. The idea that an elevation in cTnI levels is a valuable parameter for the risk stratification of patients with PE needs to be examined in larger prospective studies.


Is transurethral catheterisation the ideal method of bladder drainage?

Abstract:
OBJECTIVE Bladder catheterisation is a routine part of major abdominal surgery. Transurethral catheterisation is the most common method of bladder drainage but is also notorious for its discomfort and increased risk of urinary tract infection. The present study aimed to establish patient satisfaction with transurethral catheterisation and to assess the incidence of clinically significant urinary tract infections after transurethral catheterisation through survey.
METHODS All patients who underwent major open abdominal surgery between October 2006 and December 2008 and required standard transurethral bladder catheterisation, were asked to participate in the study. Fifty patients were recruited.
RESULTS Male patients were more dissatisfied than their female counterparts with transurethral catheterisation (satisfaction score: 4.18/10 vs. 2.75/10; p = 0.05). Male patients had more than double the score for pain at the urinary meatus with the catheter in situ (p =0.012) and during urine catheter removal (p = 0.013). Half the patients in the study also had symptoms of urinary tract infection after catheter removal.
CONCLUSION Our study emphasised the discomfort of transurethral urinary catheters, especially in male patients, and the high incidence of urinary tract infections in both sexes. Consideration should be given to the utilisation of alternative methods of bladder drainage, such as suprapubic catheterisation, which can be performed with ease during laparotomy.


The colour of pain: can patients use colour to describe osteoarthritis pain?

Abstract:
OBJECTIVE The aim of the present study was to explore patients' views on the acceptability and feasibility of using colour to describe osteoarthritis (OA) pain, and whether colour could be used to communicate pain to healthcare professionals.
METHODS Six group interviews were conducted with 17 patients with knee OA. Discussion topics included first impressions about using colour to describe pain, whether participants could associate their pain with colour, how colours related to changes to intensity and different pain qualities, and whether they could envisage using colour to describe pain to healthcare professionals.
RESULTS The group interviews indicated that, although the idea of using colour was generally acceptable, it did not suit all participants as a way of describing their pain. The majority of participants chose red to describe high-intensity pain; the reasons given were because red symbolized inflammation, fire, anger and the stop signal in a traffic light system. Colours used to describe the absence of pain were chosen because of their association with positive emotional feelings, such as purity, calmness and happiness. A range of colours was chosen to represent changes in pain intensity. Aching pain was consistently identified as being associated with colours such as grey or black, whereas sharp pain was described using a wider selection of colours. The majority of participants thought that they would be able to use colour to describe their pain to healthcare professionals, although issues around the interpretability and standardization of colour were raised.
CONCLUSION For some patients, using colour to describe their pain experience may be a useful tool to improve doctor-patient communication.


Inpatient Pediatric Tonsillectomy: Does Hospital Type Affect Cost and Outcomes of Care?

Abstract:
OBJECTIVE To ascertain whether hospital type is associated with differences in total cost and outcomes for inpatient tonsillectomy.
STUDY DESIGN Cross-sectional analysis of the 2006, 2009, and 2012 Kids' Inpatient Database (KID).
SUBJECTS AND METHODS Children ≤18 years of age undergoing tonsillectomy with/without adenoidectomy were included. Risk-adjusted generalized linear models assessed for differences in hospital cost and length of stay (LOS) among children managed by (1) non-children's teaching hospitals (NCTHs), (2) children's teaching hospitals (CTHs), and (3) nonteaching hospitals (NTHs). Risk-adjusted logistic regression compared the odds of major perioperative complications (hemorrhage, respiratory failure, death). Models accounted for clustering of patients within hospitals, were weighted to provide national estimates, and controlled for comorbidities.
RESULTS The 25,685 tonsillectomies recorded in the KID yielded a national estimate of 40,591 inpatient tonsillectomies performed in 2006, 2009, and 2012. The CTHs had significantly higher risk-adjusted total cost and LOS per tonsillectomy compared with NCTHs and NTHs ($9423.34/2.8 days, $6250.78/2.11 days, and $5905.10/2.08 days, respectively; P<.001). The CTHs had higher odds of complications compared with NCTHs (odds ratio [OR], 1.48; 95% CI, 1.15-1.91; P = .002) but not when compared with NTHs (OR, 1.19; 95% CI, 0.89-1.59; P = .23). The CTHs were significantly more likely to care for patients with comorbidities (P<.001).
CONCLUSION Significant differences in costs, outcomes, and patient factors exist for inpatient tonsillectomy based on hospital type. Although reasons for these differences are not discernable using isolated claims data, findings provide a foundation to further evaluate patient, institutional, and system-level factors that may reduce cost of care and improve value for inpatient tonsillectomy.


Does anterior laxity of the uninjured knee influence clinical outcomes of ACL reconstruction?

Abstract:
BACKGROUND The purpose of this study was to evaluate the association between the postoperative outcomes of anterior cruciate ligament (ACL) reconstruction and the anterior laxity of the uninjured knee.
METHODS We retrospectively reviewed 163 patients who had undergone unilateral ACL reconstruction from January 2002 to August 2009. Patients were divided into three groups according to the anterior laxity of the contralateral, normal knee in 30° of knee flexion as measured with a KT2000 arthrometer exerting a force of 134 N:<5 mm for Group 1, 5 to 7.5 mm for Group 2, and>7.5 mm for Group 3. Anterior laxity of the uninjured knee was assessed preoperatively, and anterior laxity of the reconstructed knee was assessed at twenty-four months postoperatively. Anterior stability of the knee was also assessed with use of the Lachman and pivot-shift tests. Functional outcomes were assessed with the Lysholm score and the International Knee Documentation Committee (IKDC) score.
RESULTS The three groups differed significantly with respect to the postoperative side-to-side difference in anterior laxity (p = 0.015), Lysholm score (p<0.001), and IKDC subjective score (p<0.001). The mean side-to-side difference in anterior laxity of the reconstructed knee was 2.1 ± 1.3 mm in Group 1, 2.2 ± 1.3 mm in Group 2, and 2.9 ± 1.4 mm in Group 3. The postoperative Lysholm score was 91.8 ± 4.5 in Group 1, 90.3 ± 5.5 in Group 2, and 85.4 ± 6.6 in Group 3. The postoperative IKDC subjective score was 89.3 ± 6.4 in Group 1, 87.9 ± 6.0 in Group 2, and 82.6 ± 8.2 in Group 3. Post hoc testing showed that Group 3 had significantly greater anterior laxity (p ≤ 0.039) and lower functional scores (p ≤ 0.001) compared with Groups 1 and 2.
CONCLUSION Greater anterior laxity of the uninjured knee was associated with poorer stability and functional outcomes after ACL reconstruction. Excessive anterior laxity of the uninjured knee thus appears to represent a risk factor for inferior outcomes.


Is the type of remission after a major depressive episode an important risk factor to relapses in a 4-year follow up?

Abstract:
BACKGROUND Rates of relapse and predictive relapse factors were studied over more than 4 years in a sample of Spanish outpatients with DSM-III-R criteria for unipolar major depressive episode.
METHODS A final sample of 139 outpatient was followed monthly in a naturalistic study. The Structured Clinical Interview for DSM-III-R was used. Phases of evolution were recorded using the Hamilton Depression Rating Scale, applying the Frank criteria. Survival analysis, Kaplan-Meier product limit and proportional hazards models were used.
RESULTS A higher rate of relapses was observed in the partial remission group (91.4%) compared to the complete remission one (51.3%). The four factors with predictive relapse value were: "partial remission versus complete remission", "the intensity of clinical symptoms", "the age" and "the number of previous depressive episodes". The existence of partial remission was the most powerful predictive factor.
LIMITATIONS The decreasing sample size during the follow-up and the difficulty in warranting the treatment compliance.
CONCLUSION At medium term, relapse rates for a major depressive episode are high. Partial remission after a depressive episode seems to be an important predictive factor for relapses in a 4-year follow-up.


Prostate-specific antigen and free prostate-specific antigen in the early detection of prostate cancer: do combination tests improve detection?

Abstract:
BACKGROUND The combined use of free and total prostate-specific antigen (PSA) in early detection of prostate cancer has been controversial. This article systematically evaluates the discriminating capacity of a large number of combination tests.
METHODS Free and total PSA were analyzed in stored serum samples taken prior to diagnosis in 429 cases and 1,640 controls from the Physicians' Health Study. We used a classification algorithm called logic regression to search for clinically useful tests combining total and percent free PSA and receiver operating characteristic analysis and compared these tests with those based on total and complexed PSA. Data were divided into training and test subsets. For robustness, we considered 35 test-train splits of the original data and computed receiver operating characteristic curves for each test data set.
RESULTS The average area under the receiver operating characteristic curve across test data sets was 0.74 for total PSA and 0.76 for the combination tests. Combination tests with higher sensitivity and specificity than PSA>4.0 ng/mL were identified 29 out of 35 times. All these tests extended the PSA reflex range to below 4.0 ng/mL. Receiver operating characteristic curve analysis indicated that the overall diagnostic performance as expressed by the area under the curve did not differ significantly for the different tests.
CONCLUSION Tests combining total and percent free PSA show modest overall improvements over total PSA. However, utilization of percent free PSA below a PSA threshold of 4 ng/mL could translate into a practically important reduction in unnecessary biopsies without sacrificing cancers detected.


Can homemade alcohol (Raksi) be useful for preserving dead bodies?

Abstract:
INTRODUCTION Embalming is the through disinfection and art of preserving bodies after death using chemical substances. It keeps a body life like in appearance during the time it lies in a state prior to funeral.
OBJECTIVE This study was undertaken to investigate the effectiveness of Raksi in sacrificed rats in arresting postmortem changes and establishing scientific fact whether Raksi can be an alternative to standard embalming constituent if it is not available.
MATERIAL AND METHODS 50 albino rats were systematically randomized into control and experiment groups. Raksi and distilled water were injected for embalming purpose intraventricularly in experiment and control groups of rats respectively and kept for 48 to 96 hours for observation for postmortem changes.
RESULT Observations made at 48 and 72 hours of embalming revealed that Raksi can arrest postmortem changes in the rats up to 72 hours (3rd day) successfully in the experimental group whereas moderate to severe postmortem changes were seen in the control group. The experimental group showed mild degree of putrefactive changes, liberation of gases and liquefaction of tissues only at 96 hours (4th day) of embalming.
DISCUSSION The Raksi used in this experiment contained 34% of alcohol, which was determined by an alcohol hydrometer. Experiment clearly demonstrated from its result that raksi can be utilised temporarily for embalming since it contains alcohol and has preservative, bactericidal and disinfectant properties.
CONCLUSION It is concluded from the study that this knowledge if applied to dead human subjects, may preserve dead bodies temporarily allowing delayed funeral.


Is breast cancer survival improving?

Abstract:
BACKGROUND Despite advances in therapies for breast cancer, improvement in survival for patients with recurrent or metastatic breast cancer has been difficult to establish. The objective of the current study was to determine whether the survival of women with recurrent breast cancer has improved from 1974 to 2000.
METHODS The authors analyzed the survival experience of 834 women who developed recurrent breast cancer between November 1974 and December 2000. All patients had been treated previously with adjuvant anthracycline-based protocols. Patients were divided into five consecutive groups based on year of breast cancer recurrence, and survival was compared across the five groups. Because some prognostic variables were divided unevenly divided among the cohorts, a multivariate model was created to determine the association of year of recurrence and survival after accounting for other prognostic factors.
RESULTS In the unadjusted analysis, there was a statistically significant improvement in survival across the five groups, and the more recent cohorts had longer survival (P<0.001). Other variables that predicted longer survival after breast cancer recurrence included smaller initial tumor size, lower stage of disease, fewer lymph nodes involved, longer disease-free interval, estrogen receptor-positive tumors, and nonvisceral dominant site of disease recurrence. In the multivariate analysis, which adjusted for these prognostic factors, year of recurrence was associated with a trend toward improved survival, with a 1% reduction in risk for each increasing year.
CONCLUSION For these cohorts of patients, the authors present data suggesting that the prognosis for patients with recurrent breast cancer improved between 1974 and 2000.


Can common carotid intima media thickness serve as an indicator of both cardiovascular phenotype and risk among black Africans?

Abstract:
BACKGROUND It is not known whether common carotid intima media thickness (CIMT) can serve as a surrogate marker of cardiovascular risk among black Africans. Therefore, we examined whether CIMT differed significantly among individuals with distinct cardiovascular phenotype and correlated significantly with traditional cardiovascular risk factors in a black African population.
METHODS CIMT was measured in 456 subjects with three distinct cardiovascular phenotypes - 175 consecutive Nigerian African stroke patients, 161 hypertensive patients without stroke and 120 normotensive non-smoking adults. For each pair of cardiovascular phenotypes, c-statistics were obtained for CIMT and traditional vascular risk factors (including age, gender, weight, waist circumference, smoking, alcohol, systolic and diastolic blood pressures, fasting plasma glucose, fasting total cholesterol). Pearson's correlation coefficients were calculated to quantify bivariate relationships.
FINDINGS Bilaterally, CIMT was significantly different among the three cardiovascular phenotypes (right: p < 0.001, F = 33.8; left: p < 0.001, F = 48.6). CIMT had a higher c-statistic for differentiating stroke versus normotension (c = 0.78 right; 0.82 left, p < 0.001) and hypertension versus normotension (c = 0.65 right; 0.71 left, p < 0.001) than several traditional vascular risk factors. Bilaterally, combining all subjects, CIMT was the only factor that correlated significantly (right: 0.12 ≤ r ≤ 0.41, 0.018 ≤ p < 0.0001; left: 0.18 ≤ r ≤ 0.41, 0.005 ≤ p < 0.0001) to all the traditional cardiovascular risk factors assessed.
CONCLUSION Our findings support CIMT as a significant indicator of both cardiovascular risk and phenotype among adult black Africans. However, specific thresholds need to be defined based on prospective studies.


Delayed diagnosis of anorectal malformations: are current guidelines sufficient?

Abstract:
METHODS Infants referred to our institution with a final diagnosis of ARM were retrospectively reviewed between 2001 and 2009. The first cohort consisted of patients that were referred between November 2001 and November 2006 with the diagnosis of an ARM that had been delayed for more than 48 h. The second cohort was those referred between December 2006 and May 2009 with whom the diagnosis of ARM had not been made within 24 h of birth.
RESULTS Nineteen infants were referred with delayed diagnosis of an ARM over the 7.5 years of the study. Of 44 patients referred to our institution between December 2006 and May 2009, diagnosis of an ARM was delayed more than 24 h in 14 (32%). There was no difference in gender, birth weight, prematurity, type of malformation or presence of associated anomalies between those with timely and delayed diagnosis of their ARM. A significantly greater proportion of those with a delayed diagnosis presented with obstructive symptoms (86% vs. 27%, P<0.001), including abdominal distension (57%) and delayed passage of meconium or stool (29%). Despite undergoing neonatal examination, the diagnosis of ARM was missed in 12 patients overall.
CONCLUSION Delayed diagnosis of an ARM appears to be common, occurring in approximately 32% of patients referred to our institution over the last 2.5 years. Current guidelines appear insufficient to ensure prompt diagnosis of ARM.


Is being small for gestational age a risk factor for retinopathy of prematurity?

Abstract:
OBJECTIVE To analyze prevalence and risk factors for retinopathy of prematurity (ROP) among preterm infants born small for gestational age (SGA) and appropriate for gestational age (AGA).
METHODS A prospective cohort study included preterm infants with birth weight (BW)<or = 1,500 grams and gestational age (GA)<or = 32 weeks, divided into two groups: AGA or SGA. Prevalences and risk factors for ROP were determined in both groups. Logistic regression was used for the significant variables after univariate analysis.
RESULTS A total of 345 patients were examined: 199 included in the AGA group and 146 in the SGA. Mean BW and GA in the whole cohort (345 patients) were 1,128.12 grams (+/-239.9) and 29.7 weeks (+/-1.9), respectively. The prevalence of any stage ROP and severe ROP (needing treatment) was 29.6 and 7.0%, respectively. ROP in any evolutive stage developed in 66 AGA (33.2%) and in 36 SGA (24.7%) (p = 0.111). Severe ROP occurred in 15 AGA (7.5%) and in nine SGA (6.2%) (p = 0.779). After adjusted logistic regression, weight gain from birth to sixth week of life and need for blood transfusions were found to be significant risk factors for ROP in both groups.
CONCLUSION This study has shown that being SGA was not a significant risk factor for any stage ROP or for severe ROP in this cohort and, also, that the risk factors for ROP were similar among SGA and AGA very-low-birth-weight preterm babies.


Comparative safety of infliximab and etanercept on the risk of serious infections: does the association vary by patient characteristics?

Abstract:
PURPOSE Infliximab, a chimeric monoclonal anti-TNFα antibody, has been found to increase the risk of serious infections compared with the TNF receptor fusion protein etanercept in some studies. It is unclear whether the risk varies by patient characteristics. We conducted a study to address this question.
METHODS We identified members of Kaiser Permanente Northern California who initiated infliximab (n = 793) or etanercept (n = 2692) in 1997-2007. Using a Cox model, we estimated the propensity-score-adjusted hazard ratio (HR) and 95% confidence interval (CI) of serious infections requiring hospitalization or opportunistic infections comparing infliximab initiators to etanercept initiators. We tested whether the adjusted HR differed by age, sex, race/ethnicity, body mass index, and smoking status.
RESULTS The crude incidence rate of serious infections per 100 person-years was 5.4 (95%CI: 3.8, 7.5) in patients<65 years and 16.0 (95%CI: 10.4, 23.4) in patients ≥ 65 years during the first 3 months following treatment initiation. Compared with etanercept, the adjusted HR during this period was elevated for infliximab in patients<65 years (HR: 3.01; 95%CI: 1.49, 6.07), but not in those ≥ 65 years (HR 0.94; 95%CI: 0.41, 2.13). Findings did not suggest that the HR varied by the other patient characteristics examined.
CONCLUSION An increased risk of serious infections associated with infliximab relative to etanercept did not appear to be modified by patients' sex, race/ethnicity, body mass index, or smoking status. There was an indication that the increased risk might be limited to patients<65 years. Additional studies are warranted to verify or refute this finding.


Fast foods - are they a risk factor for asthma?

Abstract:
BACKGROUND Lifestyle changes over the last 30 years are the most likely explanation for the increase in allergic disease over this period.AIM: This study tests the hypothesis that the consumption of fast food is related to the prevalence of asthma and allergy.
METHODS As part of the International Study of Asthma and Allergies in Childhood (ISAAC) a cross-sectional prevalence study of 1321 children (mean age = 11.4 years, range: 10.1-12.5) was conducted in Hastings, New Zealand. Using standard questions we collected data on the prevalence of asthma and asthma symptoms, as well as food frequency data. Skin prick tests were performed to common environmental allergens and exercise-induced bronchial hyperresponsiveness (BHR) was assessed according to a standard protocol. Body mass index (BMI) was calculated as weight/height2 (kg/m2) and classified into overweight and obese according to a standard international definition.
RESULTS After adjusting for lifestyle factors, including other diet and BMI variables, compared with children who never ate hamburgers, we found an independent risk of hamburger consumption on having a history of wheeze [consumption less than once a week (OR = 1.44, 95% CI: 1.06-1.96) and 1+ times a week (OR = 1.65, 95% CI: 1.07-2.52)] and on current wheeze [consumption less than once a week (OR = 1.17, 95% CI: 0.80-1.70) and 1+ times a week (OR = 1.81, 95% CI: 1.10-2.98)]. Takeaway consumption 1+ times a week was marginally significantly related to BHR (OR = 2.41, 95% CI: 0.99-5.91). There was no effect on atopy.
CONCLUSION Frequent consumption of hamburgers showed a dose-dependent association with asthma symptoms, and frequent takeaway consumption showed a similar association with BHR.


Can magnetic resonance-ultrasound fusion biopsy improve cancer detection in enlarged prostates?

Abstract:
PURPOSE Patients with an enlarged prostate and suspicion of prostate cancer pose a diagnostic dilemma. The prostate cancer detection rate of systematic 12-core transrectal ultrasound guided biopsy is between 30% and 40%. For prostates greater than 40 cc this decreases to 30% or less. Magnetic resonance-ultrasound fusion biopsy has shown superior prostate cancer detection rates. We defined the detection rate of magnetic resonance-ultrasound fusion biopsy in men with an enlarged prostate gland.
MATERIALS AND METHODS We retrospectively analyzed the records of patients who underwent multiparametric prostate magnetic resonance imaging followed by magnetic resonance-ultrasound fusion biopsy at our institution. Whole prostate volumes were calculated using magnetic resonance imaging reconstructions. Detection rates were analyzed with respect to age, prostate specific antigen and whole prostate volumes. Multivariable logistic regression was used to assess these parameters as independent predictors of prostate cancer detection.
RESULTS We analyzed 649 patients with a mean±SD age of 61.8±7.9 years and a median prostate specific antigen of 6.65 ng/ml (IQR 4.35-11.0). Mean whole prostate volume was 58.7±34.3 cc. The overall detection rate of the magnetic resonance-ultrasound fusion platform was 55%. For prostates less than 40 cc the detection rate was 71.1% compared to 57.5%, 46.9%, 46.9% 33.3%, 36.4% and 30.4% for glands 40 to 54.9, 55 to 69.9, 70 to 84.9, 85 to 99.9, 100 to 114.9 and 115 cc or greater, respectively (p<0.0001). Multivariable logistic regression showed a significant inverse association of magnetic resonance imaging volume with prostate cancer detection, controlling for age and prostate specific antigen.
CONCLUSION Transrectal ultrasound guided and fusion biopsy cancer detection rates decreased with increasing prostate volume. However, magnetic resonance-ultrasound fusion biopsy had a higher prostate cancer detection rate compared to that of transrectal ultrasound guided biopsy in the literature. Magnetic resonance-ultrasound fusion biopsy represents a promising solution for patients with suspicion of prostate cancer and an enlarged prostate.


Are there progressive brain changes in schizophrenia?

Abstract:
BACKGROUND It is well established that schizophrenia is associated with structural brain abnormalities, but whether these are static or progress over time remains controversial.
METHODS A systematic review of longitudinal volumetric studies using region-of-interest structural magnetic resonance imaging in patients with schizophrenia and healthy control subjects. The percentage change in volume between scans for each brain region of interest was obtained, and data were combined using random effects meta-analysis.
RESULTS Twenty-seven studies were included in the meta-analysis, with 928 patients and 867 control subjects, and 32 different brain regions of interest. Subjects with schizophrenia showed significantly greater decreases over time in whole brain volume, whole brain gray matter, frontal gray and white matter, parietal white matter, and temporal white matter volume, as well as larger increases in lateral ventricular volume, than healthy control subjects. The time between baseline and follow-up magnetic resonance imaging scans ranged from 1 to 10 years. The differences between patients and control subjects in annualized percentage volume change were -.07% for whole brain volume, -.59% for whole brain gray matter, -.32% for frontal white matter, -.32% for parietal white matter, -.39% for temporal white matter, and +.36% for bilateral lateral ventricles.
CONCLUSION These findings suggest that schizophrenia is associated with progressive structural brain abnormalities, affecting both gray and white matter. We found no evidence to suggest progressive medial temporal lobe involvement but did find evidence that this may be partly explained by heterogeneity between studies in patient age and illness duration. The causes and clinical correlates of these progressive brain changes should now be the focus of investigation.


Does concept mapping enhance learning outcome of nursing students?

Abstract:
METHOD This quasi-experimental study was conducted using a crossover design among two groups of total 64 nursing students. Participants were asked to create concept maps (group A) or were evaluated with the traditional method of quiz (group B) for eight weeks and then take a cumulative test (no. 1). Consequently, subjects used the alternate method for another eight weeks and then take the second cumulative test (no. 2).
RESULTS The results of this study showed that the mean scores for cumulative tests (both no. 1 and no. 2) was higher in the group that engaged in map construction compared to the group that only take the quizzes. In addition, there was a gradual increase in the mean scores of developed map during the eight sessions of intervention.
CONCLUSION In conclusion, concept mapping has a positive effect on students' academic achievement. These findings could provide valuable evidence for establishing concept mapping as a continuous teaching strategy for nursing students.


Is the Androgen Deficiency of Aging Men (ADAM) questionnaire useful for the screening of partial androgenic deficiency of aging men?

Abstract:
BACKGROUND Androgen serum levels significantly decrease in older men, causing quality of life impairment and increasing the risk of chronic disease. This disorder is defined as PADAM (Partial Androgen Deficiency of Aging Men).
OBJECTIVE To evaluate a PADAM screening tool and determine the prevalence of this disorder in healthy adult men.
METHODS This was a cross-sectional study in which 96 men aged 40 or more of the South Metropolitan Region of Santiago de Chile were surveyed with the Androgen Deficiency of Aging Men (ADAM) questionnaire of the Saint Louis University and sampled for the serum determination of total testosterone, sexual hormone binding globulin (SHBG) and albumin. Also free and bioavailable testosterone were calculated. PADAM was considered present if items 1 or 7 or any 3 other questions of the ADAM questionnaire were positive. An available testosterone of<198.4 ng/dL was used as a gold standard for the diagnosis of PADAM.
RESULTS A total of 78 men (81.3%) were identified as possible PADAM according to the ADAM questionnaire. Total testosterone levels fell from 503.6+/-180.1 ng/dL in men aged 40 to 54 years to 382.1+/-247.3 in those>70 years; however this was not statistically significant (ANOVA, p=0.06). In the same age groups, SHBG significantly increased (31.0+/-15.0 to 47.5+/-15.0 nmol/L, p<0.001) whereas free and available testosterone significantly decreased (10.6+/-3.2 to 6.4+/-3.6 ng/dL and 266.6+/-81.2 to 152.2+/-97.6 ng/dL, respectively, p<0.0001). Overall (n=96), available testosterone confirmed PADAM diagnosis in 27 cases (28.1%). The ADAM tool rendered a 83.3% sensitivity and 19.7% specificity in the detection of PADAM. Item 1 (decreased sexual desire) was a better predictor of hypogonadism than the complete questionnaire (63.3% sensitivity and 66.7% specificity).
CONCLUSION In this series, in accordance to available testosterone, the prevalence of PADAM was determined to be high, in which the ADAM questionnaire rendered a low diagnostic efficiency. PADAM diagnosis could be clinically suspected when symptoms of sexual dysfunction are present.


Does the Transmissible Liability Index (TLI) assessed in late childhood predict suicidal symptoms at young adulthood?

Abstract:
OBJECTIVE Our previous work demonstrated that the Transmissible Liability Index (TLI), an instrument designed as an index of liability for substance use disorder (SUD), is associated with risk of substance use disorder. This longitudinal study assessed whether TLI measured in 10-12-year-olds (late childhood) predicts suicidal behavior from age 12-14 (preadolescence) to age 25 (young adulthood). We hypothesized that TLI would predict number and severity of suicide attempts.
METHODS Subjects were sons of men who had lifetime history of SUD (n = 250), called the High Average Risk (HAR) group, and sons of men with no lifetime history of a SUD (n = 250), called the Low Average Risk (LAR) group. The TLI was delineated at baseline (age 10-12), and age-specific versions were administered at 12-14, 16, 19, 22, and 25 years of age.
RESULTS TLI was significantly associated with number and severity of lifetime suicide attempts.
CONCLUSION These findings confirm the hypothesis that TLI assessed at late childhood is a predictor of frequency and severity of suicidal behavior from preadolescence to young adulthood.


Are there gender differences in the reasons why African Americans delay in seeking medical help for symptoms of an acute myocardial infarction?

Abstract:
OBJECTIVES To identify gender differences in delay time and the reasons why African Americans delay in seeking medical care for symptoms of acute myocardial infarction (AMI).
DESIGN Cross-sectional.
SETTING Five hospitals in the San Francisco and East Bay areas.
PATIENTS Sixty-one African American men and women diagnosed with an AMI.
MAIN OUTCOME MEASURES Prehospital delay time.
RESULTS Median delay time was longer for women compared to men (4.4 hours vs 3.5 hours), although the difference was not significant. Single women delayed longer than single men (P = .03), and women who were alone when symptoms began delayed longer than women with someone (P = .03). Women who received advice to seek help or call 911 upon symptom onset had shorter delays compared to women who were not advised to call 911 (P = .01). Men at home delayed longer than men who experienced their symptoms outside the home (P = .01). Men with emergency room insurance delayed longer than men without emergency room insurance (P = .03), and men who took an ambulance to the hospital had shorter delay times than men who took other means of transportation (P = .04).
CONCLUSION Women compared to men often delay seeking treatment for an AMI, which further increases their risks. Our findings suggest specific characteristics that can serve as a profile to those African Americans most likely to delay seeking treatment for AMI.


Does histologic chorioamnionitis correspond to clinical chorioamnionitis?

Abstract:
OBJECTIVE To evaluate the degree to which histologic chorioamnionitis, a frequent finding in placentas submitted for histopathologic evaluation, correlates with clinical indicators of infection in the mother.
STUDY DESIGN A retrospective review was performed on 52 cases with a histologic diagnosis of acute chorioamnionitis from 2,051 deliveries at University Hospital, Newark, from January 2003 to July 2003. Third-trimester placentas without histologic chorioamnionitis (n = 52) served as controls. Cases and controls were selected sequentially. Maternal medical records were reviewed for indicators of maternal infection.
RESULTS Histologic chorioamnionitis was significantly associated with the usage of antibiotics (p = 0.0095) and a higher mean white blood cell count (p = 0.018). The presence of 1 or more clinical indicators was significantly associated with the presence of histologic chorioamnionitis (p = 0.019).
CONCLUSION Histologic chorioamnionitis is a reliable indicator of infection whether or not it is clinically apparent.


Are lifetime prevalence of impetigo, molluscum and herpes infection really increased in children having atopic dermatitis?

Abstract:
BACKGROUND Cutaneous infections such as impetigo contagiosum (IC), molluscum contagiosum (MC) and herpes virus infection (HI) appear to be associated with atopic dermatitis (AD), but there are no reports of concrete epidemiological evidence.
OBJECTIVE We evaluated the association of childhood AD with these infections by conducting a population-based cross-sectional study.
METHODS Enrolled in this study were 1117 children aged 0-6 years old attending nursery schools in Ishigaki City, Okinawa Prefecture, Japan. Physical examination was performed by dermatologists, and a questionnaire was completed on each child's history of allergic diseases including AD, asthma, allergic rhinitis and egg allergy, and that of skin infections including IC, MC and HI, as well as familial history of AD.
RESULTS In 913 children (AD; 132), a history of IC, MC or HI was observed in 45.1%, 19.7%, and 2.5%, respectively. Multiple logistic regression analysis revealed that the odds of having a history of IC were 1.8 times higher in AD children than in non-AD children. Meanwhile, a history of MC was significantly correlated to the male gender, but not to a personal history of AD. As for HI, we found no correlated factors in this study.
CONCLUSION The lifetime prevalence of IC was indeed higher in young children with a history of AD.


Does sonographic needle guidance affect the clinical outcome of intraarticular injections?

Abstract:
OBJECTIVE This randomized controlled study addressed whether sonographic needle guidance affected clinical outcomes of intraarticular (IA) joint injections.
METHODS In total, 148 painful joints were randomized to IA triamcinolone acetonide injection by conventional palpation-guided anatomic injection or sonographic image-guided injection enhanced with a one-handed control syringe (the reciprocating device). A one-needle, 2-syringe technique was used, where the first syringe was used to introduce the needle, aspirate any effusion, and anesthetize and dilate the IA space with lidocaine. After IA placement and synovial space dilation were confirmed, a syringe exchange was performed, and corticosteroid was injected with the second syringe through the indwelling IA needle. Baseline pain, procedural pain, pain at outcome (2 weeks), and changes in pain scores were measured with a 0-10 cm visual analog pain scale (VAS).
RESULTS Relative to conventional palpation-guided methods, sonographic guidance resulted in 43.0% reduction in procedural pain (p<0.001), 58.5% reduction in absolute pain scores at the 2 week outcome (p<0.001), 75% reduction in significant pain (VAS pain score>or = 5 cm; p<0.001), 25.6% increase in the responder rate (reduction in VAS score>or = 50% from baseline; p<0.01), and 62.0% reduction in the nonresponder rate (reduction in VAS score<50% from baseline; p<0.01). Sonography also increased detection of effusion by 200% and volume of aspirated fluid by 337%.
CONCLUSION Sonographic needle guidance significantly improves the performance and outcomes of outpatient IA injections in a clinically significant manner.


Pancreas retransplantation:  a second chance for diabetic patients?

Abstract:
BACKGROUND If pancreas transplantation is a validated alternative for type 1 diabetic patients with end-stage renal disease, the management of patients who have lost their primary graft is poorly defined. This study aims at evaluating pancreas retransplantation outcome.
METHODS Between 1976 and 2008, 569 pancreas transplantations were performed in Lyon and Geneva, including 37 second transplantations. Second graft survival was compared with primary graft survival of the same patients and the whole population. Predictive factors of second graft survival were sought. Patient survival and impact on kidney graft function and survival were evaluated.
RESULTS Second pancreas survival of the 17 patients transplanted from 1995 was close to primary graft survival of the whole population (71% vs. 79% at 1 year and 59% vs. 69% at 5 years; P=0.5075) and significantly better than their first pancreas survival (71% vs. 29% at 1 year and 59% vs. 7% at 5 years; P=0.0008) regardless of the cause of first pancreas loss. The same results were observed with all 37 retransplantations. Survival of second simultaneous pancreas and kidney transplantations was better than survival of second pancreas after kidney. Patient survival was excellent (89% at 5 years). Pancreas retransplantation had no impact on kidney graft function and survival (100% at 5 years).
CONCLUSION Pancreas retransplantation is a safe procedure with acceptable graft survival that should be proposed to diabetic patients who have lost their primary graft.


Do viral infections have a role in benign paroxysmal positional vertigo?

Abstract:
OBJECTIVES To investigate the role of viral infection in benign paroxysmal positional vertigo (BPPV).
METHODS In this retrospective study, 483 patients with BPPV were included in the study group. The control group consisted of 461 healthy subjects. In both groups, serologic analysis of viral agents (HSV1, HSV2, Herpes zoster, EBV, CMV, adenovirus, influenza, and parainfluenza virus) was performed.
RESULTS With the exception of influenza and parainfluenza, all viral serology values were higher in the BBPV group than the control group. We also observed seasonal variation. The BPPV group exhibited elevated values for HSV1 and adenovirus in March and May, for Herpes zoster, adenovirus, and influenza in April, for HSV1 in June, and for HSV1 and CMV in September, compared to the control group. In October, the BPPV group showed increased values for all of the viruses studied, compared to the control group.
CONCLUSION BPPV is associated with positive viral serology, particularly during certain months of the year, mainly in spring and autumn. Viral infection might promote BPPV attacks due to the development of vestibulopathy or induce secondary BPPV via viral infection-related neurolabyrinthitis.


Does the enteral feeding advancement affect short-term outcomes in very low birth weight infants?

Abstract:
BACKGROUND AND OBJECTIVES Controversy exists regarding the optimal enteral feeding regimen of very low birth weight infants (VLBW). Rapid advancement of enteral feeding has been associated with an increased rate of necrotizing enterocolitis. In contrast, delaying enteral feeding may have unfavorable effects on nutrition, growth, and neurodevelopment. The aim is to compare the short-term outcomes of VLBW infants in tertiary care centers according to their enteral feeding advancement.
PATIENTS AND METHODS We prospectively studied the influence of center-specific enteral feeding advancement in 1430 VLBW infants recruited from 13 tertiary neonatal intensive care units in Germany on short-term outcome parameters. The centers were post hoc stratified to "rapid advancement to full enteral feeds" (median duration of advancement to full enteral feeds<or =12.5 days; 6 centers), that is, rapid advancement (RA), or "slow advancement to full enteral feeds" (median duration of advancement to full enteral feeds>12.5 days; 7 centers), that is, slow advancement (SA).
RESULTS VLBW infants born in centers with SA (n = 713) had a significantly higher rate of sepsis compared with VLBW infants born in centers with RA (n = 717), which was particularly evident for late-onset sepsis (14.0% vs 20.4%; P = 0.002). Furthermore, more central venous lines (48.6% vs 31.1%, P<0.001) and antibiotics (92.4% vs 77.7%, P<0.001) were used in centers with SA.
CONCLUSION Center differences in enteral feeding advancement occur and may have a significant impact on short-term outcomes such as nosocomial sepsis. Large, multicenter, prospective trials are required to further elucidate the optimal feeding strategy for VLBW infants.


Does psychological distress predict disability?

Abstract:
STUDY OBJECTIVE To evaluate psychological distress as a predictor of disability due to common chronic disorders.
STUDY POPULATION AND METHODS A 10-year follow-up study was carried out among a representative cohort (N = 8655) of 18-64 year old Finnish farmers, who had participated in a health survey in 1979 and were able to work at baseline. A record linkage with the nationwide register of the Social Insurance Institution was made to identify disability pensions granted between 1980 and 1990 in the cohort. The medical certificates of 1004 (11.6%) prematurely retired farmers were reviewed to confirm and classify disabling conditions. A sum score based on self-reports of 11 symptoms at the baseline was used as a measure of psychological distress.
RESULTS After adjustment for age, sex, smoking and body mass index, the cause-specific relative risks (RR) (95% confidence intervals [CI]) of disability in the highest quartile of the psychological distress score as compared with the lowest quartile were for myocardial infarction 2.34 (95% CI: 1.17-4.69), for depression 2.50 (95% CI: 1.09-5.72), for neck-shoulder disorders 1.98 (95% CI: 1.26-3.11), for unspecified low-back disorders 1.76 (95% CI: 1.24-2.49), for knee osteoarthritis 1.55 (95% CI: 0.91-2.63) and for trip osteoarthritis 0.89 (95% CI: 0.42-1.85). The corresponding RR for overall disability was 1.76 (95% CI: 1.44-2.14) in the highest quartile of psychological distress score as compared with the lowest quartile.
CONCLUSION Psychological distress is an independent risk factor for disability. Its predictive significance varies between disorders leading to functional deterioration. The association mechanisms are likely to vary from one disorder to another.


Does preloading with colloids prevent hemodynamic changes when neurosurgical patients are subsequently changed to the seated position?

Abstract:
OBJECTIVE This prospective, randomized, double-blind study was designed to determine and compare the usefulness of preloading colloids (Haemaccel) 10 ml/Kg before positioning whether it can prevent hemodynamic changes during seated positioning or not.
MATERIAL AND METHOD The authors studied 20 patients by randomly dividing them into 2 groups. The control group was given crystalloid as maintenance and deposit replacement but the study group was given extra colloids 10 ml/Kg 30 minutes before starting general anesthesia. Both groups were monitored and given anesthesia, balanced technique. Systolic and diastolic blood pressures, heart rate, central venous pressure (CVP) at different time intervals in the sitting position for 30 minutes were recorded. Statistical analysis was done by Student t-test, Chi-square test and ANOVA (p-value<0. 05 considered significant).
RESULTS The results showed that systolic blood pressure at 15, 20, 30 minutes and CVP at 15, 25, 30 minutes after positioning in the study group was maintained significantly compared to the control group and there were no significant changes in diastolic blood pressure and heart rate. There were no other complications during the sitting period.
CONCLUSION It is concluded that preloading colloid fluid prior to repositioning could prevent the decrease of systolic blood pressure and central venous pressure during sitting positioning without other complications.


Is there a first night effect on sleep bruxism?

Abstract:
STUDY OBJECTIVES Sleep bruxism (SB) is reported to vary in frequency over time. The aim of this study was to assess the first night effect on SB.
METHODS A retrospective polysomnographic (PSG) analysis was performed of data from a sample of SB patients (12 females, 4 males; age range: 17-39 years) recorded in a sleep laboratory over 2 consecutive nights. Sleep parameters and jaw muscle activity variables (i.e., rhythmic masticatory muscle activity [RMMA]) for SB were quantified and compared between the 2 nights. Subjects were classified into groups according to severity of RMMA frequency, such as low frequency (2-4 episodes/h and/or<25 bursts/h) and moderate-high frequency (≥ 4 episodes/h and ≥ 25 bursts/h).
RESULTS Overall, no first night effects were found for most sleep variables. However, total sleep time, sleep efficiency, and stage transitions showed significant time and group interactions (repeated measures ANOVAs, p ≤ 0.05). The RMMA episode index did not differ between the 2 nights, whereas the second night showed significantly higher burst index, bruxism time index, and mean burst duration (repeated measure ANOVAs, p ≤ 0.05). Five patients of 8 in the low frequency group were classified into the moderate-high frequency group on the second night, whereas only one patient in the moderate-high frequency group moved to the low frequency group.
CONCLUSION The results showed no overall first night effect on severity of RMMA frequency in young and healthy patients with SB. In clinical practice, one-night sleep recording may be sufficient for moderate-high frequency SB patients. However, low RMMA frequency in the first night could be confirmed by a second night based on the patient's medical and dental history.


Does menopausal transition affect the quality of life?

Abstract:
OBJECTIVE The aim of this study was to investigate the role of menopausal transition and menopausal symptoms in relation to quality of life in a cohort of middle-aged women in Kinmen.
DESIGN A total of 734 premenopausal women participated in the baseline study, and 579 women (78.9%) completed a follow-up 2 years later. Quality of life was assessed by the Medical Outcomes Study Short Form-36. Participating women were asked for demographic data, about vasomotor symptoms, and to complete the Medical Outcomes Study Short Form-36 and the Hospital Anxiety and Depression Scale.
RESULTS There was no demographic difference between women who remained premenopausal and those who entered perimenopause except for age. Vitality deteriorated no matter whether the women stayed in premenopause or entered perimenopause. In multivariate analysis, only vasomotor symptoms had an adverse influence on role limitation of emotion after adjusting for age, education, menopausal status, baseline cognitive score, and Hospital Anxiety and Depression Scale score. The menopausal transition did not influence the eight domains of the Short Form-36 in the multivariate regression model.
CONCLUSION This longitudinal study found no significant effect of menopausal transition on quality of life among Taiwanese women. The decline in the role limitations due to emotional problems was related to vasomotor symptoms.


Can clinicians use the PHQ-9 to assess depression in people with vision loss?

Abstract:
PURPOSE To investigate whether the Patient Health Questionnaire-9 (PHQ-9) possesses the essential psychometric characteristics to measure depressive symptoms in people with visual impairment.
METHODS The PHQ-9 scale was completed by 103 participants with low vision. These data were then assessed for fit to the Rasch model.
RESULTS The participants' mean +/- standard deviation (SD) age was 74.7 +/- 12.2 years. Almost one half of them (n = 46; 44.7%) were considered to have severe vision impairment (presenting visual acuity<6/60 in the better eye). Disordered thresholds were evident initially. Collapsing the two middle categories produced ordered thresholds and fit to the Rasch model (chi = 10.1; degrees of freedom = 9; p = 0.34). The mean (SD) items and persons Fit Residual values were -0.31 (1.12) and -0.25 (0.78), respectively, where optimal fit of data to the Rasch model would have a mean = 0 and SD = 1. Unidimensionality was demonstrated confirming the construct validity of the PHQ-9 and there was no evidence of differential item functioning on a number of factors including visual disability. The person separation reliability value was 0.80 indicating that the PHQ-9 has satisfactory precision. There was a degree of mistargeting as expected in this largely non-clinically depressed sample.
CONCLUSION Our findings demonstrate that the PHQ-9, when scaled with Rasch analysis, forms a linear interval measurement of depressive symptoms suitable for use in a vision impaired population.


Should all human immunodeficiency virus-infected patients with end-stage renal disease be excluded from transplantation?

Abstract:
BACKGROUND Human immunodeficiency virus (HIV)-infected patients have generally been excluded from transplantation. Recent advances in the management and prognosis of these patients suggest that this policy should be reevaluated.
METHODS To explore the current views of U.S. transplant centers toward transplanting asymptomatic HIV-infected patients with end-stage renal disease, a written survey was mailed to the directors of transplantation at all 248 renal transplant centers in the United States.
RESULTS All 148 responding centers said they require HIV testing of prospective kidney recipients, and 84% of these centers would not transplant an individual who refuses HIV testing. The vast majority of responding centers would not transplant a kidney from a cadaveric (88%) or a living donor (91%) into an asymptomatic HIV-infected patient who is otherwise a good candidate for transplantation. Among the few centers that would consider transplanting an HIV-infected patient, not a single center had performed such a transplant in the year prior to the survey. Most centers fear that transplantation in the face of HIV infection would be harmful to the individual, and some believe that it would be a waste of precious organs.
CONCLUSION The great majority of U.S. renal transplant centers will not transplant kidneys to HIV-infected patients with end-stage renal disease, even if their infection is asymptomatic. However, advances in the management of HIV infection and a review of relevant ethical issues suggest that this approach should be reconsidered.


Is the 7th TNM edition suitable for biological predictor in early gastric cancer?

Abstract:
AIMS The clinical and prognostic value of the previous node classification of TNM staging in early gastric cancer (EGC) has been less definitive. The aim was to assess the suitability of the revised node staging for prediction of clinical behavior of EGC.
METHODOLOGY Between 2005 and 2008, 1,845 patients were diagnosed with EGC and underwent surgery at Severance Hospitals. Clinicopathological characteristics were analyzed with comparisons between sixth and seventh TNM staging.
RESULTS When comparing IB with IIA upstaged based on seventh staging, poor differentiation, signet ring cell, diffuse, undifferentiated types, perineural invasion (PNI), larger size and younger age, were more significantly associated with IIA. Clinicopathological factors were compared between N0/N1 and N2/N3 based on both staging. In mucosal cancer, younger age, diffuse and undifferentiated types were more significantly associated with N2/N3 based on seventh staging. In submucosal cancer, larger size, poor differentiation, signet ring cell, diffuse, undifferentiated types, PNI and deeper submucosal invasion, were more significantly associated with N2/N3 based on seventh staging.
CONCLUSION Upstaging in EGC based on the revised TNM staging reflects more aggressive biological behavior of cancer. The new TNM staging system may be informative in prediction of biological behavior of EGC as well as prognosis and survival.


Does growth hormone replacement therapy reduce mortality in adults with growth hormone deficiency?

Abstract:
CONTEXT Adults with GH deficiency (GHD) have a decreased life expectancy. The effect of GH treatment on mortality remains to be established.
OBJECTIVE This nationwide cohort study investigates the effect of GH treatment on all-cause and cause-specific mortality and analyzes patient characteristics influencing mortality in GHD adults.
DESIGN, SETTING, AND PATIENTS Patients in the Dutch National Registry of Growth Hormone Treatment in Adults were retrospectively monitored (1985-2009) and subdivided into treatment (n = 2229), primary (untreated, n = 109), and secondary control (partly treated, n = 356) groups.
MAIN OUTCOME MEASURES Standardized mortality ratios (SMR) were calculated for all-cause, malignancy, and cardiovascular disease (CVD) mortality. Expected mortality was obtained from cause, sex, calendar year, and age-specific death rates from national death and population counts.
RESULTS In the treatment group, 95 patients died compared to 74.6 expected [SMR 1.27 (95% confidence interval, 1.04-1.56)]. Mortality was higher in women than in men. After exclusion of high-risk patients, the SMR for CVD mortality remained increased in women. Mortality due to malignancies was not elevated. In the control groups mortality was not different from the background population. Univariate analyses demonstrated sex, GHD onset, age, and underlying diagnosis as influencing factors.
CONCLUSION GHD men receiving GH treatment have a mortality rate not different from the background population. In women, after exclusion of high-risk patients, mortality was not different from the background population except for CVD. Mortality due to malignancies was not elevated in adults receiving GH treatment. Next to gender, the heterogeneous etiology is of influence on mortality in GHD adults with GH treatment.


Attaining negative margins in breast-conservation operations: is there a consensus among breast surgeons?

Abstract:
BACKGROUND The purpose of this survey was to ascertain the most common surgical practices for attaining negative (tumor-free) surgical margins in patients desiring breast-conservation treatment for breast cancer to see if a consensus exists for optimal treatment of patients.
STUDY DESIGN We sent a survey to 1,000 surgeons interested in the treatment of breast cancer. Three hundred eighty-one surgeons responded to this survey and 351 were used for the analysis (response rate of 38%).
RESULTS Answers showed a large variety in clinical practices among breast surgeons across the country. There was little intraoperative margin analysis; only 48% of surgeons examine the margins grossly with a pathologist and even fewer used frozen sections or imprint cytology. Decisions to reexcise specific margins varied greatly. For example, 57% of surgeons would never reexcise for a positive deep margin, but 53% would always reexcise for a positive anterior margin. Most importantly, there was a large range in answers about acceptable margins with ductal carcinoma in situ and invasive carcinoma. Fifteen percent of surgeons would accept any negative margin, 28% would accept a 1-mm negative margin, 50% would accept a 2-mm negative margin, 12% would accept a 5-mm negative margin, and 3% would accept a 10-mm negative margin.
CONCLUSION Results of this survey highlight the wide variety of practice patterns in the US for handling surgical margins in breast-conservation treatment. This issue remains controversial, with no prevailing standard of care. Consequently, additional study is needed in the modern era of multimodality treatment to examine the minimal amount of surgical treatment necessary, in conjunction with chemotherapy and radiation, to attain adequate local control rates in breast-conservation treatment.


Can serum be used for analyzing the EGFR mutation status in patients with advanced non-small cell lung cancer?

Abstract:
BACKGROUND Epidermal growth factor receptor (EGFR) mutations as prognostic or predictive marker in patients with non-small cell lung cancer (NSCLC) have been used widely. However, it may be difficult to get tumor tissue for analyzing the status of EGFR mutation status in large proportion of patients with advanced disease.
PATIENTS AND METHODS We obtained pairs of tumor and serum samples from 57 patients with advanced NSCLC, between March 2006 and January 2009. EGFR mutation status from tumor samples was analyzed by genomic polymerase chain reaction and direct sequence and EGFR mutation status from serum samples was determined by the peptide nucleic acid locked nucleic acid polymerase chain reaction clamp.
RESULTS EGFR mutations were detected in the serum samples of 11 patients and in the tumor samples of 12 patients. EGFR mutation status in the serum and tumor samples was consistent in 50 of the 57 pairs (87.7%). There was a high correlation between the mutations detected in serum sample and the mutations detected in the matched tumor sample (correlation index 0.62; P<0.001). Twenty-two of 57 patients (38.5%) received EGFR-tyrosine kinase inhibitors as any line therapy. The response for EGFR-tyrosine kinase inhibitors was significantly associated with EGFR mutations in both tumor samples and serum samples (P<0.05). There was no significant differences in overall survival according to the status of EGFR mutations in both serum and tumor samples (P>0.05).
CONCLUSION Serum sample might be alternatively used in the difficult time of getting tumor tissue for analyzing the status of EGFR mutation status in patients with advanced NSCLC.


Do women residents delay childbearing due to perceived career threats?

Abstract:
PURPOSE To assess gender differences among residents regarding their plans to have children during residency and determine the most influential reasons for these differences.
METHOD Using the Health Belief Model as a framework, the authors created an instrument to survey 424 residents from 11 residency programs at three academic medical institutions about their intentions to have children during residency. The authors developed a scale to assess the perceived career threats of having children during residency, evaluated its psychometric properties, and calculated the effect of the mediators.
RESULTS The response rate was 77% (328/424). Forty-one percent of men versus 27% of women planned to have children during residency (P = .01). The instrument measured four career threats-extended training, loss of fellowship positions, pregnancy complications, and interference with career plans-on a five-point Likert scale. The scale had a Cronbach alpha of 0.84 and an eigenvalue of 2.2. Compared with men, women had higher scores for each item and a higher mean score (2.9 versus 2.1, P = .001), signifying greater belief in the potential of pregnancy to threaten careers. After adjusting for age, institution, postgraduate year, and knowledge of parental leave policies, women were less likely to plan to have children during residency (odds ratio 0.46 [95% confidence interval 0.25-0.84]). In mediation analysis, threats to career explained 67% of the gender variance.
CONCLUSION Women residents intentionally postpone pregnancy because of perceived threats to their careers. Medical educators should be aware of these findings when counseling female trainees.


Do general practitioner hospitals reduce the utilisation of general hospital beds?

Abstract:
STUDY OBJECTIVE To assess whether populations with access to general practitioner hospitals (GP hospitals) utilise general hospitals less than populations without such access.
DESIGN Observational study comparing the total rates of admissions and of occupied bed days in general hospitals between populations with and without access to GP hospitals. Comparisons were also made separately for diagnoses commonly encountered in GP hospitals.
SETTING Two general hospitals serving the population of Finnmark county in north Norway.
PATIENTS 35,435 admissions based on five years' routine recordings from the two hospitals.
MAIN RESULTS The total rate of admission to general hospitals was lower in peripheral municipalities with a GP hospital than in central municipalities without this kind of institution, 26% and 28% lower for men and women respectively. The corresponding differences were 38% and 52%, when analysed for occupied bed days. The differences were most pronounced for patients with respiratory diseases, cardiac failure, and cancer who are primarily or intermediately treated or cared for in GP hospitals, and for patients with stroke and fractures, who are regularly transferred from general hospitals to GP hospitals for longer term follow up care.
CONCLUSION GP hospitals seem to reduce the utilisation of general hospitals with respect to admissions as well as occupied bed days.


Some aspects of social exclusion: do they influence suicide mortality?

Abstract:
BACKGROUND The current study is aimed to assess the relationship between the 'economic/employment' and 'social/welfare' dimensions of social exclusion and suicide mortality in Europe.
METHODS Suicide rates for 26 countries were obtained from the WHO. Data on social expenditure were obtained from the OECD database. Employment rates and GDP were obtained from the Total Economy Database. Questions about citizens' attitudes towards different aspects of social exclusion were taken from the European Social Survey. Structural equation modelling was applied to research the theoretical structure of the variables.
RESULTS All variables are statistically significant in male and female models except of the relationships between 'economic/employment' and 'social/welfare' dimensions and female suicides; and the relationship between 'employment rates' and 'economic/employment' dimension. Suicide mortality rates among both males and females are influenced negatively by 'economic/employment' and 'social/welfare' dimensions. Among females, the influence of 'social/welfare' dimension is stronger compared to the 'economic/employment' dimension. The remaining influence of GDP is positive in both models.
CONCLUSION Both 'economic/employment' and 'social/welfare' dimensions of social exclusion significantly influence suicide mortality among males. The influence of 'economic/employment' and 'social/welfare' dimensions of social exclusion on female suicide mortality is controversial. Social exclusion might be considered as a risk factor for suicide mortality in Europe.


Does parity increase insulin resistance during pregnancy?

Abstract:
AIMS To study the effect of parity on impairment of insulin sensitivity during pregnancy and on the risk of gestational diabetes (GDM).
METHODS We studied the relationship between parity and peripheral insulin sensitivity index (ISI(OGTT)) or GDM in 1880 caucasian women, who underwent a 100-g, 3-h oral glucose tolerance test (OGTT) between the 24th and 28th gestational week and in 75 women who underwent an OGTT in two consecutive pregnancies. A proxy for beta-cell function (basal plasma C peptide/fasting plasma glucose; CP/FPG) was also measured.
RESULTS By univariate analysis parity was related to decreased ISI(OGTT) and to increased CP/FPG in those with parity>3 and likewise GDM, diagnosed in 124 women (6.58%), was linearly related to parity (P = 0.0034) and strongly age dependent. The relationships between parity and ISI(OGTT), CP/FPG and GDM were no longer significant after adjustment for age, pregestational body mass index (BMI), and weight gain. GDM was significantly related to age and pregestational weight, while ISI(OGTT) and CP/FPG were inversely related to prepregnancy BMI or weight gain. In comparison with the index pregnancy, the subsequent pregnancy was characterized by an increase in actual and prepregnancy BMI, in 2 h area under curve (AUC) glucose and by a decrease in ISI(OGTT) (P = 0.0001). The longer the time interval between pregnancies and the higher the increment in pregestational BMI or in weight gain during the pregnancy, the greater were the ISI(OGTT) decrease and 2-h AUC glucose increase.
CONCLUSION Parity is not directly linked to insulin sensitivity deterioration, to CP/FPG increase during pregnancy, or to GDM appearance, although it is linked through the mediation of progressive ageing and weight gain either before or during pregnancy, when there is a sufficiently long time interval between pregnancies.


Informed consent for total hip arthroplasty: does a written information sheet improve recall by patients?

Abstract:
OBJECTIVE To ascertain whether a written information sheet is acceptable to patients and improves recall of the consent interview.
DESIGN Prospective randomised controlled study using questionnaires, comparing a group of patients given information in a written sheet with appropriate explanation to a group given verbal information alone.
SETTING A specialist orthopaedic surgery unit.
PATIENTS The test group was 126 patients undergoing revision or primary total hip arthroplasty; 65 patients were given information verbally, 61 patients were given written information.
OUTCOME MEASURE Patients' recall of information given, tested with a questionnaire completed on admission (mean of 18 days later).
RESULTS The patients receiving written information scored significantly higher (48% correct answers) than the patients receiving verbal information (38% correct answers).
CONCLUSION Written information sheets contribute to the process of informed consent. As patients' recall of information is generally poor, the sheets may also be useful medicolegally, as a permanent record of what was discussed.


Is gastric cancer different in Korea and the United States?

Abstract:
PURPOSE To compare the characteristics and prognoses of gastric cancers by tumor location in Korean and U.S. subjects after curative-intent (R0) resection for gastric cancer (GC).
METHODS Data were collected for all patients who had undergone R0 resection at one U.S. institution (n = 567) and one South Korean institution (n = 1,620). Patients with gastroesophageal junction tumors or neoadjuvant therapy were excluded. Patient, surgical, and pathologic variables were compared by tumor location. Factors associated with disease-specific survival (DSS) were determined via multivariate analysis.
RESULTS In the Korean cohort, significantly more upper third GC (UTG) patients had undifferentiated, diffuse type, and advanced stage cancers compared to lower third GC (LTG) and middle third GC (MTG) patients. In the U.S. cohort, however, T stage was relatively evenly distributed among UTG, MTG, and LTG patients. The independent predictors of DSS in the Korean cohort were T stage, tumor size, retrieved and positive lymph node counts, and age, but in the U.S. cohort, the only independent predictors were T stage and positive lymph node count. Tumor size significantly affected DSS of Korean UTG patients but not U.S. UTG patients.
CONCLUSION There were significant differences in tumor characteristics by tumor location within and between both national cohorts. On the basis of these findings, further study to investigate the biological difference between the two countries is needed.


Discharging patients earlier from Winnipeg hospitals: does it adversely affect quality of care?

Abstract:
OBJECTIVE To determine whether decreasing lengths of stay over time for selected diagnostic categories were associated with increased hospital readmission rates and mean number of physician visits after discharge.
DESIGN Retrospective descriptive study.
SETTING The seven large (125 beds or more) acute care hospitals in Winnipeg.
PATIENTS Manitoba residents admitted to any one of the seven hospitals because acute myocardial infarction (AMI), bronchitis or asthma, transurethral prostatectomy (TURP) and uterine or adnexal procedures for nonmalignant disease during the fiscal years 1989-90 to 1992-93. Patients from out of province, those who died in hospital, those with excessively long stays (more than 60 days) and those who were transferred to or from another institution were excluded.
OUTCOME MEASURES Length of hospital stay, and rate of readmission within 30 days after discharge for all four categories and mean number of physician visits within 30 days after discharge for two categories (AMI and bronchitis or asthma.
RESULTS The length of stay decreased significantly over the 4 years for all of the four categories, the smallest change being observed for patients with AMI (11.1%) and the largest for those with bronchitis or asthma (22.0%). The readmission rates for AMI, bronchitis or asthma, and TURP showed no consistent change over the 4 years. The readmission rate for uterine or adnexal procedures increased significantly between the first and second year (chi 2 = 4.28, p = 0.04) but then remained constant over the next 3 years. The mean number of physician visits increased slightly for AMI in the first year (1.92 to 2.01) and then remained virtually the same. It decreased slightly for bronchitis or asthma over the 4 years. There was no significant correlation between length of stay and readmission rates for individual hospitals in 1992-93 in any of the four categories. Also, no correlation was observed between length of stay and mean number of physician visits for individual hospitals in 1992-93 in the categories AMI and bronchitis or asthma.
CONCLUSION Improving hospital efficiency by shortening length of stay does not appear to result in increased rates of readmission or numbers of physician visits within 30 days after discharge from hospital. Research is needed to identify optimal lengths of stay and expected readmission rates.


Does the distribution of health care benefits in Kenya meet the principles of universal coverage?

Abstract:
BACKGROUND The 58th World Health Assembly called for all health systems to move towards universal coverage where everyone has access to key promotive, preventive, curative and rehabilitative health interventions at an affordable cost. Universal coverage involves ensuring that health care benefits are distributed on the basis of need for care and not on ability to pay. The distribution of health care benefits is therefore an important policy question, which health systems should address. The aim of this study is to assess the distribution of health care benefits in the Kenyan health system, compare changes over two time periods and demonstrate the extent to which the distribution meets the principles of universal coverage.
METHODS Two nationally representative cross-sectional households surveys conducted in 2003 and 2007 were the main sources of data. A comprehensive analysis of the entire health system is conducted including the public sector, private-not-for-profit and private-for-profit sectors. Standard benefit incidence analysis techniques were applied and adopted to allow application to private sector services.
RESULTS The three sectors recorded similar levels of pro-rich distribution in 2003, but in 2007, the private-not-for-profit sector was pro-poor, public sector benefits showed an equal distribution, while the private-for-profit sector remained pro-rich. Larger pro-rich disparities were recorded for inpatient compared to outpatient benefits at the hospital level, but primary health care services were pro-poor. Benefits were distributed on the basis of ability to pay and not on need for care.
CONCLUSION The principles of universal coverage require that all should benefit from health care according to need. The Kenyan health sector is clearly inequitable and benefits are not distributed on the basis of need. Deliberate efforts should be directed to restructuring the Kenyan health system to address access barriers and ensure that all Kenyans benefit from health care when they need it.


Cholesterol screening in school children: is family history reliable to choose the ones to screen?

Abstract:
METHODS The study was carried on 2096 school children (1043 male, 1053 female) in Ankara. Their mean age was 9.03 years. Demographic properties of the study group and their families were determined and the serum lipid levels of the subjects were obtained. The relation between these demographic properties and lipid levels were investigated.
RESULTS In 135 of the subjects' serum cholesterol level was>or=200 mg/dL and in 83 subjects serum LDL-cholesterol level was>or=130 mg/dL. Despite 64.4% of the subjects reported a family history of hyperlipidemia, no relations between family history and serum lipid levels were found.
CONCLUSION We suggest that regardless of family history, all children over 5 years should be screened for hyperlipidemia. Education about hyperlipidemia and precautions for its complications should be given to both children and families. The best and easiest way to reach children is to screen them at schools. School is also a good place for education of children about hyperlipidemia and risk factors.