bluuebunny/crossref_metadata_2025 huggingface dataset:
As-Needed Antihypertensive Therapy in Surgical Patients, Why and How: Challenging a Paradigm
Authors: Miller Christopher P. , Cook Aaron M. , Pharm D. , Case Christopher D. , Bernard Andrew C.
Published: June 2020

Hypertension is common in hospitalized patients and there are many causes. Some patients have no prior history of hypertension, few symptoms, and no apparent morbidity related to acute rises in blood pressure. Though there is no established guideline for therapy in these cases, patients often receive therapy directed at the abnormal vital sign. It is hypothesized that this practice is common and the associated costs are significant. Using the inpatient pharmacy database at the University of Kentucky Chandler Medical Center, a verified Level I trauma center and quaternary referral center, patients on the emergency general surgery or orthopedic surgery services receiving intravenous hydralazine, metoprolol, or labetalol were identified. Subjects were analyzed for indications, parameters, associated history of hypertension, and direct costs. Over the 4-month study period, 114 subjects received 522 drug doses. More than half (55%) of subjects had a prior history of hypertension but only 75 per cent were started on their home medication. Of those without hypertension before admission, 18 per cent required therapy at discharge. Labetalol was the most frequently used agent and total pharmacy costs for this cohort of patients was over $1200. Pro re nata (PRN), short-acting antihypertensive therapy has little evidence base in asymptomatic patients, but its prevalence is high on surgical services. The cost is significant, especially when extrapolated to the larger hospital population at this single institution. Further research is warranted to determine the prevalence of this practice in other centers or national regions, as well as its cost and benefit.
Article Commentary: The Twisted Colon: A Review of Sigmoid Volvulus
Authors: Osiro Stephen B. , Cunningham Debbie , Shoja Mohammadali M. , Tubbs R. Shane , Gielecki Jerzy , Loukas Marios
Published: June 2020

Sigmoid volvulus (SV) is the third leading cause of colon obstruction in adults. In infants and children, it is exceedingly rare with only sporadic cases reported so far. SVs from secondary causes, with congenital megacolon being the most important, are nevertheless more common in young people. The etiology of this disorder is not completely understood. It is known to occur in the setting of redundant sigmoid loop, which rotates around its narrow and elongated mesentery. Although the latter occurs in the setting of constipation, a congenitally elongated colon, and other predisposing factors, there is no consensus on the precipitating factor leading to SV formation. The symptoms are suggestive of small bowel obstruction, but the presentations can be acute or indolent. Plain abdominal radiography is used to diagnose SV in most cases with computed tomography scan or magnetic resonance imaging as the confirmatory tests when necessary. After it has been untwisted, the definitive and standard therapy for SV is sigmoid resection and primary anastomosis. The nonresective alternatives have also been widely used with mixed success, but a large, randomized controlled trial is needed to compare their efficacy with resection and primary anastomosis. Laparoscopic surgery in SV management is unwarranted and costly. Complications of SV include hemorrhagic infarction, perforation, septic shock, and death. The mortality data from SV vary, but the latest literature cites an overall range of 14 to 45 per cent.
Management of Choledochal Cysts and Their Complications
Authors: Singh Saluja Sundeep , Nayeem Mohammed , Chander Sharma Barjesh , Bora Giriraj , Kumar Mishra Pramod
Published: June 2020

Choledochal cysts are increasingly reported in adults. The presence of cyst-related complications alters its presentation and complicates the management. We reviewed our experience to find the clinical presentation, complications, and the management of choledochal cysts. The records of 132 patients with choledochal cysts presented to us between 2003 and 2010 maintained as a prospective database were analyzed for demography, clinical presentation, radiological investigation, management, and outcome. There were 12 children and 120 adults. Based on preoperative cholangiogram, 93 (71%) patients had Type I and 39 (29%) Type IVA cysts. The overall incidence of complicated choledochal cyst was 4 of 12 (33%) in children and 85 of 120 (71%) in adults. The most common complication was cystolithiasis (49%) followed by cholangitis (32%), acute pancreatitis (10%), hepatolithiasis (7%), malignancy (3%), portal hypertension (2%), and chronic pancreatitis (2%). Acute pancreatitis and cholangitis were managed conservatively. Endoscopic stenting was performed in patients with cholangitis and those requiring staged treatment as a result of portal hypertension. Overall 114 patients underwent cyst excision with Roux-en-y hepaticojejunostomy. The overall morbidity was 17.5 per cent (wound infection 13% and bilioenteric anastomotic leak 7%). There was one postoperative death resulting from cardiac failure. Three patients developed anastomotic stricture and underwent redo hepaticojejunostomy. Choledochal cysts in adults are often associated with complications. Complications are more common in adults compared with children. Acute pancreatitis, cholangitis and portal hypertension are managed conservatively and then followed up by definitive surgery. Cyst excision with Roux-en-Y hepaticojejunostomy is necessary to prevent the recurrence of complications.
Esophagectomy in the State of Florida: Is Regionalization of Care Warranted?
Authors: Ben-David Kfir , Ang Darwin , Grobmyer Stephen R. , Liu Huazhi , Kim Tad , Hochwald Steven N.
Published: June 2020

Centralization of cancer care needs to be based on evidence that regionalization will improve outcomes in a given region. We analyzed outcomes for esophagectomy performed in Florida using the Agency for Health Care Administration database. We determined the risk-adjusted mortality rate for the procedure in low-volume and high-volume centers. From 1997 to 2006, 991 esophagectomies were performed in Florida. The incidence of esophagectomy significantly increased from 1997 to 2001 compared with 2002 to 2006, and the postoperative mortality decreased in the latter time period (odds ratio [OR], 1.87; confidence interval [CI], 1.16–3.03). The risk-adjusted postoperative mortality was significantly lower (OR, 0.54; CI, 0.32–0.92) in high-volume centers (5.1 vs 10.4%). The anastomotic leak rates were 8.2 per cent in both high- and low-volume centers. In the largest population-based study for esophagectomy in Florida, outcomes are better in high-volume centers. These data support the regionalization of esophagectomy to high-volume locations in Florida to reduce procedure-related mortality.
Antegrade versus Retrograde Cerebral Protection in Repair of Acute Ascending Aortic Dissection
Authors: Williams Matthew L. , Ganzel Brian L. , Slater A. David , Slaughter Mark S. , Trivedi Jaimin R. , Edmonds Harvey L. , Pagni Sebastian A.
Published: June 2020

The objective of this study was to compare retrograde with antegrade cerebral protection during acute aortic dissection repair using cerebral oximetry measurements. Fifty consecutive acute ascending aortic dissection repairs were analyzed. Cerebral oximetry data were collected for 41 of 50. Eight patients who had antegrade cerebral protection alone and 29 of 41 had retrograde cerebral protection alone. The per cent change in cerebral oximetry values during deep hypothermic circulatory arrest from baseline and from prearrest values was compared for the two groups using Student t test. The per cent change from baseline for the antegrade patients was: right 13.8 per cent and left -2.5 per cent; the per cent change from baseline for retrograde patients was: right 0.8 per cent and left 0.2 per cent ( P values 0.216 and 0.725, respectively). The per cent change from the prearrest value for the antegrade patients was: right -12 per cent and left -15 per cent; the per cent change from prearrest for retrograde patients was: right -15 per cent and left -16 per cent ( P values 0.514 and 0.956, respectively). No compelling evidence for an advantage to either antegrade or retrograde cerebral perfusion was detected. Further study with a focus on neurologic outcomes is warranted.
Predictive Factors for Postoperative Severe Hypocalcaemia after Parathyroidectomy for Primary Hyperparathyroidism
Authors: Crea Nicola , Pata Giacomo , Casella Claudio , Cappelli Carlo , Salerni Bruno
Published: June 2020

Hypocalcaemia is a complication of parathyroidectomy. We retrospectively analyzed data on patients who underwent parathyroidectomy for primary hyperparathyroidism (pHPT) to identify predictive factors for severe postoperative hypocalcaemia. Since 2004 we performed 87 parathyroidectomies for pHPT. We divided the patients into two groups: subjects who presented with postoperative hypocalcaemia (group B) or otherwise (group A). We looked for a correlation between several variables and the incidence of postoperative hypocalcaemia. The median calcemia in group B (19 patients) was 6.9 mg/dL on the first postoperative day and 7.6 mg/dL on the third day. We observed hypocalcemia related clinical symptoms in every patient. In all 19 cases the reduction of intraoperative parathyroid hormone above 85 per cent after parathyroidectomy was related to the development of severe postoperative hypocalcaemia ( P = 0.042). We found that the reduction of intraoperative parathyroid hormone over 85 per cent after parathyroidectomy can be considered a reliable predictive factor of postoperative hypocalcaemia after parathyroidectomy for primary hyperparathyroidism.
Antibiotic Prophylaxis in Patients Undergoing Open Mesh Repair of Inguinal Hernia: A Meta-Analysis
Authors: Yin Yuan , Song Turun , Liao Banghua , Luo Qian , Zhou Zongguang
Published: June 2020

The use of antibiotic prophylaxis in hernia repair is still under debate. The aim of this meta-analysis was to assess the effect of antibiotic prophylaxis in patients undergoing open mesh repair of inguinal hernia with respect to incidence of postoperative surgical site infection (SSI). A literature search was conducted in databases of MEDLINE, EMBASE, and Cochrane Central Register of Controlled Trials. Study selection, data extraction, quality assessment, and meta-analysis were conducted according to the recommendations by Cochrane collaboration. Nine randomized controlled trials were included. Incidence of surgical site infection was 39/1642 (2.38%) in the antibiotic group and 70/1676 (4.18%) in the control group. Antibiotics showed a protective effect in preventing SSI after mesh inguinal hernia repair (odds ratio: 0.61, 95% confidence interval: 0.40–0.92, I2: 0%). Antibiotic prophylaxis did reduce the incidence of SSI in hernia patients undergoing mesh hernioplasty. The cost effectiveness of antibiotic prophylaxis needs further evaluation.
Prevalence of Clostridium Difficile in Excluded Colons
Authors: Hussain Zeiad I. , Todd Neil , Adams Simon , Stojkovic Stevan G.
Published: June 2020

Clostridium difficile infection is associated with substantial morbidity and mortality, increased duration of hospitalization, and a marked economic impact. Several case reports and case series have described C. difficile infection in excluded bowels or immediately after reversal of defunctioning ileostomy. The aim of this prospective study is to detect whether the excluded colon is associated with a higher rate of C. difficile colonization than the normal population, which may increase the risk of C. difficile infection. Patients with defunctioning loop ileostomy, undergoing closure of ileostomy to restore bowel continuity, were prospectively recruited. Two stool samples were collected from the ileostomy effluent before closure of ileostomy and two after the procedure including the first bowel movement. All samples were cultured for C. difficile and analyzed for toxins A and B by a Premier EIA test. Demographic data and possible confounding factors were observed and recorded. Twenty-fine adult patients were recruited to this study; five patients were subsequently excluded. Two patients had positive stool cultures for C. difficile in the postoperative samples and another patient developed clinical pseudomembranous colitis with positive toxin. This indicates a possible colonization rate of 3 to 38 per cent (95% confidence interval). Four observed cases out of the 20 subjects taking part in this study would confidently conclude that C. difficile colonization in the excluded colon is 6 to 44 per cent, i.e., higher than the incidence in the healthy adult population, which is 3 per cent. However, the findings of this study prompt larger and well-powered studies to confirm these findings.
Profiling the Ethnic Characteristics of Domestic Injuries in Children Younger than Age 5 Years
Authors: Oyetunji Tolulope A. , Stevenson Adrienne A. , Oyetunji Aderonke O. , Onguti Sharon K. , Ames Sarah A. , Haider Adil H. , Nwomeh Benedict C.
Published: June 2020

The home remains a very common location for deadly injuries among children younger than 5 years. The aim of this study is to describe the demographic and injury characteristics of domestic injuries in children younger than 5 years. The National Trauma Data Bank's National Sample Program data set was queried for children younger than 5 years with the injury site classified as home. Bivariate analysis was performed to determine unadjusted differences by ethnicity. Appropriate weight was applied to the sample to determine accurate national estimates. A total of 7,364 children, representing 32,033 children, were analyzed. Overall mortality was 1.6 per cent. Among whites, blacks, Hispanics, Asians, and Native Americans, intentional injuries accounted for 6.5, 12.8, 10.2, 5.2, and 19.0 per cent of all injuries by intent, respectively ( P < 0.003). Burn injury was disproportionately higher in blacks (24.1%) followed by Native Americans and Asians (15.3 and 11.5%, P = 0.008). On multivariate analysis, black ethnicity was associated with increased length of stay. Intentional injuries were significantly higher in blacks and Native Americans with black patients sustaining a disproportionately higher proportion of burn injury. Therefore, greater attention is needed to provide more effective home safety interventions to children among high-risk ethnic groups.
Laparoscopic Repair of Giant Paraesophageal Hernia with Synthetic Mesh: 45 Consecutive Cases
Authors: Stavropoulos George , Flessas Ioannis I. , Mariolis-Sapsakos Theodoros , Zagouri Flora , Theodoropoulos George , Toutouzas Konstantinos , Michalopoulos Nikolaos V. , Triantafyllopoulou Ioanna , Tsamis Dimitrios , Spyropoulos Basilios G. , Zografos George C.
Published: June 2020

Giant paraesophageal hernias (PEHs) are associated with progression of symptoms in up to 45 per cent of patients. Recently, many series have reported that laparoscopic repair of PEH is technically feasible, effective, and safe. A retrospective review of the University of Athens tertiary care hospitals patient database and the patient medical records identified 45 patients who underwent elective repair of a giant PEH between 2002 and 2009. Elective laparoscopic repair of a giant PEH was attempted in 45 patients who were treated with Gore-Tex dual mesh with or without Nissen fundoplication. They all had a mesh repair. Intraoperative complications included one pulmonary embolism and one recurrent hernia. The use of a mesh seems to be effective in the treatment of large hernias. It appears to offer the benefit of a shorter hospital stay and a quicker recovery.
Single-Incision Laparoscopic Cholecystectomy for Day Surgery Procedure: Are We Prepared?
Authors: Vidal ÓScar , Pavel Mihai , Valentini Mauro , GinestÀ Cesar , MartÍ Josep , Saavedra David , Espert Juan J. , Benarroch Guerson , GarcÍA-Valdecasas Juan C.
Published: June 2020

Single-incision laparoscopic surgery (SILS) for cholecystectomy is a well-established procedure and represents the next step in developing the concept of fast track surgery. This report describes our experience with SILS cholecystectomy in patients that stay overnight. Between February 2009 and July 2010, patients referred for cholecystectomy to the day surgery unit who agreed to undergo SILS were included in a prospective study. All operations were performed by the same surgical team specially trained in this type of surgery and the same operative technique was used in all cases. Postoperative pain and nausea were assessed using a 10-cm visual analogue scale on a self-completion questionnaire on the night of operation and the morning of discharge. A total of 107 patients (58% women, mean age 56 years) with symptomatic gallstones were included in the study. SILS was successfully performed in all patients and no patient required conversion to an open procedure. There were no significant differences in the median visual analogue scale for postoperative pain and nausea between the night of surgery and the next morning. The mean length of hospital stay was 23 hours, and 98 per cent of patients were satisfied with the results of surgery and would be willing to undergo the same procedure again. SILS cholecystectomy is a valid alternative to standard laparoscopic cholecystectomy as an outpatient surgery or overnight stay procedure. According to these promising results, SILS cholecystectomy could be included in a major ambulatory surgery program.
Breast Cancer Tumor Size Assessment with Mammography, Ultrasonography, and Magnetic Resonance Imaging at a Community Based Multidisciplinary Breast Center
Authors: Ines Ramirez Sarah , Scholle Max , Buckmaster Jennifer , Paley Robert Hunter , Kowdley Gopal Chandru
Published: June 2020

Paramount to staging and patient management is accurately measuring the size of invasive breast cancers. We assessed the accuracy of mammography (MG), ultrasonography (US), and magnetic resonance imaging (MRI) at our community-based hospital in which multiple radiologists and imaging machines are used in the care of our patients. We performed a retrospective analysis of a prospectively maintained database of 277 patients seen at our breast center from 2009 to 2010. We tabulated MG, US, and MRI-reported tumor sizes in 161 women with pathology-proven invasive breast cancer and compared the preoperative size measurements with final pathologic tumor size. In the 161 patients, 169 lesions were identified. Imaging using all three modalities was available in 47 patients. When compared with final pathology, MRI had a correlation of r = 0.75 to mean tumor size as compared with US (r = 0.67) and MG (r = 0.76). Mean tumor size was 1.90 cm by MG, 1.87 cm by US, 2.40 cm by MRI, and 2.19 cm by pathology. We were able to achieve an excellent correlation of pathologic tumor size to preoperative imaging. The absolute differences in size between the modalities were small. MRI, in select patients, added to the assessment of tumor size based on US and MG.
The Proximal Margin of Resected Hilar Cholangiocarcinoma: The Effect of Microscopic Positive Margin on Long-Term Survival
Authors: Lee Jae Hoon , Hwang Dae Wook , Lee Sang Yeup , Park Kwang-Min , Lee Young-Joo
Published: June 2020

Achieving an R0 resection can be difficult for hilar cholangiocarcinoma (HC) because of the anatomic structures of the hepatic hilum and frequent tumor infiltration. The aim of this study was to evaluate the margin status of bile duct resected in HC and prognostic impact of R1 resection. Between 2000 and 2009, 245 patients underwent operation for HC at Asan Medical Center. We retrospectively analyzed the clinicopathologic features and surgical outcomes, focusing on the proximal margin status, of 162 cases of patients with curative intention. Curative resections were achieved in 125 (52.1%) patients, and R1 resections were performed in 43 (26.5%). Proximal ductal margin states were classified as free margin (73.5%), carcinoma in situ (3.7%), and invasive carcinoma (22.8%). The 3- and 5-year survival rates of the R1 group (39.5% and 34.9%) were not significantly different from the rates of the R0 group (55.5% and 44.5%, respectively). Multivariate analysis showed lymph node metastasis ( P = 0.001) and histologic differentiation ( P = 0.001) were independent predictors of patient survival. The aggressive surgical approach based on liver resection including caudate lobe may increase the number of patients eligible for a curative chance and improve long-term survival even if the microscopically positive margin is still achieved.
The Effect of Multiple Wire Localization in Breast Conservation
Authors: Fillion Michelle M. , Black Emily Anne , Hudson Kathleen B. , Morin-Ducote Garnetta , Bell John L. , Gray Keith D. , Lewis James M.
Published: June 2020

Variability exists regarding the surgical technique in breast conservation therapy. The purpose of this project was to determine differences between single (SH) or flanking (FH) hooked needle localization wires used for nonpalpable breast lesions. We retrospectively reviewed 201 female patients at a single institution from 2004 to 2008. All patients had biopsy-proven ductal carcinoma in situ or invasive disease. Comparisons were made in regard to margin status, reoperation, completion mastectomy, size of lesion, and breast specimen volume. SH was placed in 122 patients (61%) and FH in 79 patients (39%). In SH, 23 patients (18%) had positive margins and 31 patients (25%) had reoperations as compared with 31 patients (25%) with positive margin and 36 patients (44%) in the FH cohort ( P = 0.039 and 0.0037). Average lesion size and volume resected was 1.5 cm and 137 cm3 in SH and 2.85 cm and 188 cm3 in FH, respectively ( P = 0.0001 and 0.006). Positive margins were associated with lesion size and not volume of tissue excised. The FH technique was associated with more positive margins, reoperation, and completion mastectomy.
The Indications for Nonsurgical Management in Patients with Colorectal Perforation after Colonoscopy
Authors: Won Dae Youn , Kyu Lee In , Suk Lee Yoon , Young Cheung Dae , Choi Seung Bong , Jung Hun , Taek Oh Seung
Published: June 2020

Recently, the risk of colonic perforation has been increasing with the increased frequency of advanced therapeutic endoscopy. However, guidelines for the management of colon perforations after colonoscopy have not been established. This study aimed to evaluate the indications for nonsurgical management. This study was conducted as a case–control study with 22 patients who were managed for colorectal perforations after colonoscopy from June 2004 to July 2009. Colonoscopy was performed in 12 patients (54.4%) for diagnostic purposes and 10 (45.5%) for therapeutic reasons. The most common site of perforation was the sigmoid colon (77.3%). Five patients underwent nonsurgical treatment, and 17 patients received surgical treatment. The duration of hospital stay did not differ significantly between the two groups. Abdominal pain and fever were significantly more commonly encountered in the surgical management group ( P = 0.043 and 0.011, respectively). All of the patients who were suitable for nonsurgical treatment were diagnosed within 24 hours and received bowel preparation before the colonoscopy. The nonsurgical treatment of colonic perforation after colonoscopy could be feasible in afebrile patients with less severe abdominal pain. Moreover, cases that were diagnosed within 24 hours and received bowel preparation before colonoscopy were associated with better outcomes.
Burn-Center Quality Improvement: Are Burn Outcomes Dependent on Admitting Facilities and is There a Volume-Outcome “Sweet-Spot”?
Authors: Hranjec Tjasa , Turrentine Florence E. , Stukenborg George , Young Jeffrey S. , Sawyer Robert G. , Calland James F.
Published: June 2020

Risk factors of mortality in burn patients such as inhalation injury, patient age, and percent of total body surface area (%TBSA) burned have been identified in previous publications. However, little is known about the variability of mortality outcomes between burn centers and whether the admitting facilities or facility volumes can be recognized as predictors of mortality. De-identified data from 87,665 acute burn observations obtained from the National Burn Repository between 2003 and 2007 were used to estimate a multivariable logistic regression model that could predict patient mortality with reference to the admitting burn facility/facility volume, adjusted for differences in age, inhalation injury, %TBSA burned, and an additional factor, percent full thickness burn (%FTB). As previously reported, all three covariates (%TBSA burned, inhalation injury, and age) were found to be highly statistically significant risk factors of mortality in burn patients (P value < 0.0001). The additional variable, %FTB, was also found to be a statistically significant determinant, although it did not greatly improve the multivariable model. The treatment/admitting facility was found to be an independent mortality predictor, with certain hospitals having increased odds of death and others showing a protective effect (decreased odds ratio). Hospitals with high burn volumes had the highest risk of mortality. Mortality outcomes of patients with similar risk factors (%TBSA burned, inhalation injury, age, and %FTB) are significantly affected by the treating facility and their admission volumes.
Laparoscopic Approach in Patients with Recurrent Crohn's Disease
Authors: Huang Renee , Valerian Brian T. , Lee Edward C.
Published: June 2020

The purpose of this study is to review our experience with laparoscopic management of Crohn's disease including patients with prior Crohn's-related abdominal surgery. All cases of Crohn's patients who underwent laparoscopic attempt for management of disease from April 2005 to October 2010 (n = 130) at a single institution were retrospectively reviewed. Evaluated datapoints include: prior abdominal surgery for Crohn's disease, operative time, rate of conversion, and complication rate. Of the 130 patients, 82 (63.1%) patients had no prior abdominal surgery and 48 (36.9%) patients had previous bowel surgery with mean age of 35.3 (3.5–79) and 41.3 (15–66) years, respectively. Operative time with no prior surgery was 106 (23–245) minutes, and with prior surgery was 100 (26–229) minutes. Estimated blood loss with no prior surgery was 116 (5–800) mL, and with prior surgery was 123 (5–800) mL. Conversion from laparoscopic to open surgery in those with no prior surgery was 17.1 per cent and in those with prior surgery, 20.8 per cent ( P = 0.64). Postoperative complications were found in 13 patients (15.9%) without prior abdominal surgery and 13 patients (27.1%) with prior surgery ( P = 0.17). The most common postoperative complication in both groups was infection/abscess (8.5%). The laparoscopic management of recurrent Crohn's disease is a safe and technically feasible option, even in those patients with prior history of Crohn's-related abdominal surgery, with a low complication rate and low conversion rate. The utility of the laparoscopic approach in Crohn's patients faced with repeat abdominal procedures may be beneficial in the long-term and should be considered as a method to limit morbidity.
Total Parathyroidectomy versus Subtotal Parathyroidectomy in the Treatment of Tertiary Hyperparathyroidism
Authors: Hsieh Ting-Min , Sun Cheuk-Kwan , Chen Yen-Ta , Chou Fong-Fu
Published: June 2020

The purposes of this study are to evaluate the merits of surgical treatment, including subtotal parathyroidectomy (SP) and total parathyroidectomy (TP), in patients with tertiary hyperparathyroidism (THPT) and compare the outcome of the two surgical options. Medical records of patients undergoing parathyroidectomy for THPT were retrospectively reviewed and long-term outcomes between the two groups were compared. Fourteen out of 488 renal transplantation recipients required parathyroidectomy for THPT during a 24-year follow-up period with a median follow-up of 35.5 [interquartile range (IQR), 19.3–133.3] months. All patients had hypercalcemia, whereas 13 had varying symptoms and one was asymptomatic. Median serum calcium level decreased from 12.4 (IQR, 11.9–12.6) mg/dL preoperatively to 8.9 (IQR, 8.1–9.4) mg/dL postoperatively ( P = 0.001), whereas median intact parathyroid hormone (iPTH) dropped from a preoperative level of 340.5 (IQR, 247–540) pg/mL to 55.1 (IQR, 24.4–66.4) pg/mL after surgery ( P = 0.018). Comparison between patients receiving TP and SP revealed no difference in incidence of recurrence or permanent complications, whereas the former had significantly lower calcium levels ( P = 0.048) and higher phosphorus levels ( P = 0.017) compared with the latter. Moreover, a significant reduction in calcium level was noted in TP group on long-term follow-up compared with their immediately postoperative level (8.1 vs 9.0 mg/dL, respectively, P < 0.05), whereas there was no significant decrease in SP group. We concluded that parathyroidectomy is efficient and safe in treating THPT. Because TP would increase the risk of hypocalcemia, a less radical procedure (SP) is preferred.
Resident Perceptions of the Impact of Paging on Intraoperative Education
Authors: Rose Joel S. , Waibel Brett H. , Schenarts Paul J.
Published: June 2020

Our purpose was to evaluate the impact of paging on perceptions of intraoperative learning. Intraoperative logs of pager interruptions were kept by surgical residents at a university hospital over a 30-day period. The postgraduate year, number of pages, category of caller, reason for call, and level of urgency were recorded during each operation. At the conclusion of each operation, residents also completed a two-item survey with responses on a 5-point scale (1 = strongly disagree to 5 = strongly agree), querying if interruptions negatively impacted the intraoperative experience and if a message taken by a third party was effective in limiting interruptions. Logs were completed for 124 of 204 operations. Fifty-five per cent of operations were interrupted at least once with 49 per cent interrupted two to five times and 6 per cent were interrupted six or more times. Junior residents had 69 per cent of their operations interrupted compared with 39 per cent of senior residents ( P = 0.001). Ninety-two per cent of pages were nonurgent. Residents did not perceive pager interruptions negatively impacted their educational experience (mean 2.3) but were neutral with respect if messages taken by a third party decreased interruptions (mean 3.8). Although our hypothesis was that pager interruptions were frequent and disrupt resident education, our data demonstrate the opposite.
Should Compliance with the Surgical Care Improvement Project (SCIP) Process Measures Determine Medicare and Medicaid Reimbursement Rates?
Authors: Garcia Nicole , Fogel Sandy , Baker Christopher , Remine Stephen , Jones Jim
Published: June 2020

The Surgical Care Improvement Project (SCIP) is aproject that focuses on improving surgical care by reducing surgical morbidity and mortality by 25 per cent by 2010. Starting in 2011, SCIP compliance affects Medicare and Medicaid reimbursement rates. Although SCIP reinforces better practices in surgical care, does compliance with SCIP measures actually result in a decrease in surgical morbidity and mortality? This study examined compliance with the SCIP surgical site infection (SSI) module (prophylactic antibiotic received within 1 hour before surgical incision) during 2009 to 2010 (n = 703) to determine whether patients compliant with SCIP data had a correlation with SSI rates as reported by National Surgery Quality Improvement Program (NSQIP) data for the same time period. We found no statistically significant association in patients that have failed SCIP INF1 in the years 2009 to 2010 (n = 43) and the rates of SSI (n = 0) for the same time period. These data suggest that SCIP compliance should not be used to determine Medicare and Medicaid reimbursement rates because there is no correlation between failure of SCIP INF1 and SSI. Instead, further effort should be placed on developing tools designed to acknowledge outcome measures that result in decreased morbidity/mortality and change practices accordingly such as NSQIP.
Outcomes after Massive Transfusion in Nontrauma Patients in the Era of Damage Control Resuscitation
Authors: Morse Bryan C. , Dente Christopher J. , Hodgman Erica I. , Shaz Beth H. , Winkler Anne , Nicholas Jeffrey M. , Wyrzykowski Amy D. , Rozycki Grace S. , Feliciano David V.
Published: June 2020

There are little data regarding the use of massive transfusion protocols (MTP) outside of the trauma setting. This study compares the use of an MTP between trauma and non-trauma (NT) patients. Data were collected for trauma and NT patients from the prospectively maintained MTP database at a Level I trauma center over a 4-year period. Massive transfusion was defined as $ 10 units packed red blood cells (PRBCs) in a 24-hour period. Of 439 MTP activations, 37 (8%) were NT patients (64% male; mean age = 51 years, initial base deficit = -10.8). Activations were for gastrointestinal bleeding (n = 18), bleeding during surgery (n = 13), obstetrical complications (n = 5), and ruptured aortic aneurysm (n = 1). Over-activation of MTP (< 10 units PRBCs/24 hours) was higher in NT than trauma patients (19/37, 51% vs 118/284, 29%, P < 0.01). For massive transfusion patients, 24-hour mortality was higher in NT compared with trauma patients (10/17, 59% vs 100/284, 35%, P = 0.05), but there was no difference in 30-day mortality (10/17, 59% vs 144/284, 51%, P = 0.51). With over-activation in 51% of NT patients, MTP usage outside of trauma is inefficient. Outcomes in NT patients were worse than trauma patients, which may be related to the underlying disease processes.
Bariatric Surgery is Associated with a Reduced Risk of Mortality in Morbidly Obese Patients with a History of Major Cardiovascular Events
Authors: Johnson Rebecca J. , Johnson Brent L. , Blackhurst Dawn W. , Bour Eric S. , Cobb Iv William S. , Carbonell Alfredo M. , Lokey Jonathan S. , Scott John D.
Published: June 2020

Although the safety of bariatric surgery in patients with established cardiovascular disease has been demonstrated, little is known about the mid- to long-term survival of these patients after surgery. We conducted a retrospective cohort study of bariatric surgical patients (n = 349) compared with morbidly obese surgical controls (n = 903). Data were obtained on all patients 40 to 79 years of age, from 1996 to 2008, with a diagnosis code of morbid obesity, a primary surgical procedure of interest, and a cardiovascular event history. Data sources were the statewide South Carolina UB92 inpatient hospitalization database and death records. The primary outcome was all-cause mortality. A total of 349 bariatric and 903 control patients with cardiovascular event histories were identified. Among bariatric patients, 19 deaths occurred in 986 person-years of follow-up versus 150 deaths among controls in 3138 person-years of follow-up. Unadjusted all-cause mortality was estimated at 7 ± 2 per cent at 5 years in bariatric patients compared with 19 ± 2 per cent ( P < 0.001) in controls. Adjusting for age, comorbidities, and event history, the relative risk of mortality was reduced by 40 per cent in bariatric patients compared with controls [hazard ratios (95% confidence interval): 0.60 (0.36, 0.99)]. In patients with a history of cardiovascular events, bariatric surgery is associated with a significantly decreased risk of all-cause mortality.
Old and Undertriaged: A Lethal Combination
Authors: Rogers Amelia , Rogers Frederick , Bradburn Eric , Krasne Margaret , Lee John , Wu Daniel , Edavettal Mathew , Horst Michael
Published: June 2020

The geriatric trauma patient poses unique challenges to the trauma surgeon due to occult injuries and occult hypoperfusion. We hypothesized that those elderly patients with significant injuries, who were not initially evaluated via trauma activation, would suffer worse outcomes. All cases of elderly (age ≥ 65) admitted to the trauma service from the years 2000 to 2010 were included. Our trauma activation system encompasses anatomic, physiologic, and mechanism of injury criteria. We defined patients as undertriaged (UT) if they had an ISS > 15 and did not undergo a trauma team activation, but had a regular workup by an emergency department physician and trauma team consultation. Factors that contributed to being UT in the emergency department were investigated by univariate and multivariate analysis. A total of 4534 elderly patients constitute this analysis, of which 15.1 per cent were UT. The UT patients were more likely to die, when adjusted for Revised Trauma Score, Glasgow Coma score, the occurrence of $1 complication, and whether the patient was on Coumadin. UT has a high risk of death in elderly patients. Trauma triage guidelines need to be better tailored to identify the high-risk geriatric trauma patient.
Use of the Medical Ethics Consultation Service in a Busy Level I Trauma Center: Impact on Decision-Making and Patient Care
Authors: Johnson Laura S. , Lesandrini Jason , Rozycki Grace S.
Published: June 2020

The purposes of this study were to assess reasons for consultation of the Ethics Consultation Service for trauma patients and how consultations impacted care. We conducted a review of ethics consultations at a Level I trauma center from 2001 to 2010. Data included patient demographics, etiology of injury, and timing/type of the consult, categorized as: shared decision-making, end-of-life, privacy and confidentiality, resource allocation, and professionalism. Consultations were requested on 108 patients (age mean, 46.5 ± 20 years; Injury Severity Score mean, 23 ± 14; length of stay [LOS] mean, 44 ± 44 days), 0.50 per cent of all trauma admissions. Seventy-seven per cent of consultations occurred in the intensive care unit. End of life was the most common consultation (44%) followed by shared decision-making (41%). Average time to consultation was 25 days. Shared decision-making consults occurred much earlier than end-of-life consults as evidenced by a lower consult day/LOS ratio (consult day/LOS = 0.36 ± 0.3 vs 0.77 ± 0.3, P = 0.0001). Conclusions consisted of: 1) ethics consultation on trauma patients are most commonly for end-of-life and shared decision-making issues; 2) most ethics consultations occur while patients are in the intensive care unit; and 3) earlier ethics consultations are likely to be for shared decision-making issues.
Facility Size and Its Influence on the Presentation and Treatment of in Situ Breast Carcinoma in the United States
Authors: Salotto Jennifer , Sariego Jack
Published: June 2020

Studies have suggested that outcomes from breast cancer are improved when treatment is rendered at high-volume teaching centers. The current study was undertaken to examine the impact of facility type on the presentation and treatment of “early” breast carcinoma across the United States. Breast cancer data were available from the American College of Surgeons National Cancer Database. The cohort consisted of 305,358 patients presenting with in situ cancers and no prior treatment from 2000 to 2008. Data were stratified by type of treatment facility, “invasive” versus “noninvasive” nature of the tumor, and treatment performed. Only 15 per cent of patients presented to community cancer centers (CCCs). Despite this, a greater percentage presented with invasive disease at CCCs (82.1%) compared with comprehensive community cancer centers (CCCCs; 80%) or teaching/research facilities (T/Rs; 70.2%). In examining the in situ cohort, a higher percentage of patients at CCCs were treated with breast conservation than at CCCCs or T/Rs. Although small, these differences were statistically significant. These data do not support the contention that only “early” cases of breast cancer present and are treated at community centers. In early breast cancer, patients are as likely to receive state-of-the-art treatment at a CCC as they are at a T/R.
Intestinal Microcirculatory Flow Alterations in Necrotizing Enterocolitis are Improved by Direct Peritoneal Resuscitation
Authors: Maki Alexandra C. , Matheson Paul J. , Shepherd Jessica A. , Garrison R. Neal , Downard Cynthia D.
Published: June 2020

Vasoconstriction of the neonatal intestinal microvasculature is a central mechanistic event in development of necrotizing enterocolitis. We hypothesized that topical treatment of the intestine with dialysate fluid would ameliorate the vasoconstriction in necrotizing enterocolitis (NEC). NEC was induced in experimental groups. Control animals were delivered vaginally and dam-fed (control group). Neonatal pups underwent laser Doppler flow study of the terminal ileum to determine real-time blood flow in the intestinal microvasculature. After baseline flow was determined, dialysis solution was added to the peritoneal cavity and alterations in microcirculation were recorded. Baseline ileal blood flow in the control group was significantly higher than in NEC rat pups at 48 hours post delivery ( P < 0.05), but not at 24 hours ( P = NS). Ileal blood flow increased in all groups after adding dialysate ( P < 0.05), improving ileal blood flow in the 48-hour NEC group and reaching the baseline level of the 48-hour control group ( P < 0.05). Our data shows blood flow to be higher in 48-hour controls as compared with 24-hour controls suggesting a time-dependency in the development of intestinal vasoregulatory processes. All groups had an increase in blood flow with dialysate treatment. This may represent a novel initial therapy to improve intestinal ischemia in human necrotizing enterocolitis.
Subtotal Cholecystectomy versus Total Cholecystectomy in Complicated Cholecystitis
Authors: Davis Brian , Castaneda Gino , Lopez Jose
Published: June 2020

Complicated cholecystitis can make dissections around the triangle of Calot difficult with a higher risk of duct and arterial injury. We reviewed a series of patients with cholecystitis receiving either partial or subtotal cholecystectomies and compared it with total cholecystectomies with respect to complications. A retrospective chart review was performed on all subtotal cholecystectomies performed for cholecystitis at University Medical Center of El Paso from June 2004 to December 2010. A similar number of patients who had total cholecystectomies for cholecystitis were selected as a comparison group from that same time period. A total of 116 patients who had subtotal and total cholecystectomies were reviewed (58 patients in each group). There were seven postoperative complications noted in the subtotal cholecystecomy (SC) group versus 14 for the total cholecystectomy (TC) group. Three patients in the SC group had cystic duct leaks, all successfully treated by endoscopic retrograde cholangiopancreatography with biliary stenting. There were two patients who had common bile duct injuries in the TC group and none in the SC group. Two patients had duodenal injuries in the TC group. Subtotal cholecystectomy is a viable alternative to total cholecystectomy in cases of complicated cholecystitis
Use of Computed Tomography Findings and Contrast Extravasation in Predicting the Need for Embolization with Pelvic Fractures
Authors: Bozeman Matthew C. , Cannon Robert M. , Trombold John M. , Smith Jason W. , Franklin Glen A. , Miller Frank B. , Richardson J. David , Harbrecht Brian G.
Published: June 2020

Transarterial embolization (AE) can be a lifesaving procedure for severe hemorrhage associated with pelvic fractures. The purpose of this study was to identify demographic and radiographic findings that predict the need for embolization. We performed a retrospective review of all patients with at least one pelvic fracture and admission to the intensive care unit over a 35-month period. Computed tomography (CT) and pelvic radiographs were reviewed. Patient demographics, outcomes, time to angiography, and whether or not embolization was performed were determined. Statistical analysis was used to determine factors associated with the need for AE. Of the 327 total patients with pelvic fractures, 317 underwent CT scanning. Forty-four patients (13.5%) underwent angiography and 25 (7.6%) required therapeutic embolization. There were 39 total deaths (11.6%) with five deaths related to pelvic hemorrhage (1.5%). Multivariate analysis revealed that age older than 55 years (odds ratio [OR], 1.06; P < 0.001), systolic blood pressure less than 90 mmHg in the emergency department (OR, 11.64; P = 0.0008), and CT extravasation (OR, 147.152; P < 0.0001) were significantly associated with the need for embolization. Contrast extravasation was not present in 25 per cent of patients requiring therapeutic AE. The presence of contrast extravasation is highly associated with the need for pelvic embolization in patients with pelvic fractures, but its absence does not exclude the need for pelvic angiography.
Parathyroidectomies Using Intraoperative Parathormone Monitoring: When Should We Stop Measuring Intraoperative Parathormone Levels?
Authors: Gupta Aditya , Unawane Amruta , Subhas Gokulakkrishna , Herschman Barry R. , Silapaswan Sumet , Kolachalam Ramachandra , Kestenberg William , Ferguson Lorenzo , Jacobs Michael J. , Mittal Vijay K.
Published: June 2020

Intraoperative parathyroid hormone monitoring (IOPM), in use for the last 15 years, has facilitated focused parathyroidectomy. We undertook this study to determine if a drop in IOPT hormone levels below 50 per cent of baseline were sufficient to terminate the procedure. We conducted a retrospective chart review (January 2007 to September 2010) of 104 patients who underwent initial parathyroidectomies with IOPM by general surgeons for primary hyperparathyroidism. Patients were followed up for serum calcium levels (range, 6 to 48 months). The number of specimens excised was significantly decreased when IOPT hormone levels dropped to greater than 50 per cent and came within the normal range earlier. Moreover, for single-gland parathyroid adenomas, once the parathyroid hormone values dropped to less than 50 per cent in the 5-minute sample, they continued to decrease in the subsequent samples. In 23 cases requiring further exploration, the parathyroid hormone values had already decreased to greater than 50 per cent in 14 cases but had not normalized (reference range, 8 to 74), leading to additional exploration. However, subsequent pathologic analysis showed that the initial gland removed was the adenoma in all these cases. A drop in the initial 5-minute parathyroid hormone value to less than 50 per cent of the baseline should serve as sufficient evidence to terminate the procedure. This would translate into significant laboratory and personnel cost savings over time. However, this should be carefully correlated with preoperative ultrasound/sestamibi findings.
Ventilator-Associated Pneumonia: Depends on Your Definition
Authors: Novosel Timothy J. , Hodge Laura A. , Weireter Leonard J. , Britt Rebecca C. , Collins Jay N. , Reed Scott F. , Britt L. D.
Published: June 2020

Reduction of hospital-acquired infections is a patient safety goal and regularly monitored by Performance Improvement committees. There is discordance between the ventilator-associated pneumonia (VAP) rate reported by the Infection Control Committee (ICC) and that observed by our Trauma Service. To investigate this difference, a retrospective evaluation of cases of VAP diagnosed on a single service was undertaken. A prospectively collected database was queried for VAP in intensive care unit patients between January 2010 and June 2011. This was compared with the list of mechanically ventilated patients provided by the ICC. Comparison for criteria used to diagnose pneumonia, ventilator day of the diagnosis, was recorded. The ICC identified two VAPs from 136 potential patients compared with the Trauma Service identifying 36 VAPs. A difference in diagnostic criteria between the ICC and the Trauma Service focused on use of the National Nosocomial Infection Survey (NNIS) algorithm versus quantitative microbiology from bronchoalveolar lavage specimens. Thirty-five of 36 Trauma Service VAPs were not identified as VAPs by the NNIS algorithm as a result of the chest radiographs. Application of differing definitions of VAP results in markedly different VAP rates. The difference has significant implications as infection rates are increasingly reported as a quality metric.