bluuebunny/crossref_metadata_2025 huggingface dataset:
Risks associated with removal of ventricular epicardial pacing wires after cardiac surgery
Authors: Carroll KC , Reeves LM , Andersen G , Ray FM , Clopton PL , Shively M , Tarazi RY
Published: November 2019

BACKGROUND: Epicardial pacing wires are routinely used for the diagnosis and treatment of bradyarrhythmias after cardiac surgery. The frequency of arrhythmias during removal of the wires is unknown, and methods of removal vary among institutions. OBJECTIVES: To describe the frequency of ventricular arrhythmias during removal of epicardial pacing wires from the right ventricle, to determine variables that are predictive of ventricular arrhythmias during wire removal, and to describe patients' perceptions of wire removal. METHODS: A convenience sample of 145 patients who had undergone cardiac surgery was studied during the course of 1 year. Electrocardiographic and vital signs were recorded throughout wire removal. Patients' records were reviewed for variables that could predict the occurrence of arrhythmias during wire removal: laboratory values, history of arrhythmias, medications, medical history, postoperative course, and pain reported by the patient. RESULTS: Sixty-six percent of patients had one premature ventricular contraction or more while the ventricular wires were being removed. Seven percent of patients had nonsustained ventricular tachycardia during wire removal. Patients who had repeat cardiac surgery had significantly more nonsustained ventricular tachycardia than did all other patients (P < .01). Only a history of heart failure (P < .02) was a significant predictor of premature ventricular contractions during wire removal. On a scale of 0 (no pain) to 10 (worst pain), the mean rating of pain intensity reported by patients was 2.39 (SD = 2.77). CONCLUSION: Patients may be at risk for ventricular arrhythmias during removal of epicardial pacing wires. Findings support the need for electrocardiographic monitoring while pacing wires are being removed.
A survey of bedside methods used to detect pulmonary aspiration of enteral formula in intubated tube-fed patients
Authors: Metheny NA , Aud MA , Wunderlich RJ
Published: November 2019

BACKGROUND: The most frequently recommended methods to assess for pulmonary aspiration of enteral formula in intubated, tube-fed patients are (1) adding dye to enteral formulas and observing for dye-stained tracheal secretions and (2) testing tracheal secretions with glucose oxidase reagent strips to detect the presence of glucose-rich formula. Reportedly, the glucose method is more sensitive than the dye method, and the dye method may have greater potential for harm. It is not known if this information has resulted in wider use of the glucose method in practice settings. OBJECTIVES: To describe the frequency with which nurses in intensive care units use the dye and glucose methods to detect pulmonary aspiration of enteral formula in tube-fed, intubated patients. METHODS: One registered nurse in the medical intensive care unit at 285 acute-care facilities was contacted by telephone and asked about the methods used to detect pulmonary aspiration of enteral formula in tube-fed, intubated adult patients. RESULTS: Responses were obtained from 281 facilities. More than 73% of the respondents reported using only the dye method; about 1% reported using only the glucose method. Approximately 13% used both methods; another 13% did not use either method. CONCLUSIONS: The dye method is used far more often than is the glucose method. Two probable reasons are that the dye method is easier to implement, and it is recommended in commonly used basic nursing textbooks.
Use of flexible intermediate and intensive care to reduce multiple transfers of patients
Authors: Besserman E , Teres D , Logan A , Brennan M , Cleaves S , Bayly R , Brochis D , Nemeth B , Grare J , Ngo D
Published: November 2019

OBJECTIVE: To test an alternative flexible approach to traditional fixed intermediate and intensive care to minimize transfers of patients. METHODS: Patients admitted to a 28-bed nursing unit with intermediate care potential and a 12-bed intensive care unit at a 300-bed teaching community hospital were studied. The group included 524 patients with a discharge diagnosis code for mechanical ventilation. During eight 3-week cycles, 1073 transfers of patients were tabulated. A plan-do-study-act method was used to improve weaning from mechanical ventilation and reduce the number of inappropriate days in intensive care. Admissions and transfers to the 2 units for all patients during the eight 3-week cycles were compared over time. Length of stay and mortality were noted for all patients treated with conventional and noninvasive ventilation. RESULTS: Direct admissions to the flexible intermediate unit increased with no overall change in admissions to the intensive care unit. Fewer patients needed conventional ventilation, and more in both units were treated with noninvasive ventilation. The median number of transfers per patient treated with mechanical ventilation decreased from 1.94 to 1.20. Length of stay and mortality also decreased among such patients. Some cost savings were attributable to the decrease in the number of transfers. Transfers out of the hospital directly from the intensive care unit increased from 2.24% to 4.43%. CONCLUSIONS: In a community teaching hospital, flexible care policies decreased the number of in-hospital transfers of patients treated with mechanical ventilation.
The controversy of significance testing: misconceptions and alternatives
Authors: Glaser DN
Published: November 2019

The current debate about the merits of null hypothesis significance testing, even though provocative, is not particularly novel. The significance testing approach has had defenders and opponents for decades, especially within the social sciences, where reliance on the use of significance testing has historically been heavy. The primary concerns have been (1) the misuse of significance testing, (2) the misinterpretation of P values, and (3) the lack of accompanying statistics, such as effect sizes and confidence intervals, that would provide a broader picture into the researcher's data analysis and interpretation. This article presents the current thinking, both in favor and against, on significance testing, the virtually unanimous support for reporting effect sizes alongside P values, and the overall implications for practice and application.
Managers' leadership and critical care nurses' intent to stay
Authors: Boyle DK , Bott MJ , Hansen HE , Woods CQ , Taunton RL
Published: November 2019

BACKGROUND: Cyclical fluctuations in turnover of critical care nurses are a large and complex problem. Managers' leadership characteristics may be a determinant of critical care nurses' intent to stay in the job. OBJECTIVE: To examine the direct and indirect effects of nurse-managers' characteristics of power, influence, and leadership style on critical care nurses' intent to stay in the nurses' employment positions. METHODS: The sample was 255 staff nurses in intensive care units at 4 urban hospitals. Established instruments with sound reliability and validity were used to assess the predictor, intervening, and outcome variables. Path analysis was used to examine the relationships in a conceptual model of intent to stay. RESULTS: The model explained 52% of the variance in intent to stay, and managers' characteristics were significant at each stage. Managers' position power and influence over work coordination had a direct link to intent to stay; structuring expectations and consideration contributed indirectly through the variables of instrumental communication, autonomy, and group cohesion. Instrumental communication, autonomy, and group cohesion decreased job stress and thus increased job satisfaction. Job satisfaction was directly linked with intent to stay. CONCLUSIONS: Inclusion of nurse-managers' characteristics explained more variance in intent to stay than did previous models. Managers with leadership styles that seek and value contributions from staff, promote a climate in which information is shared effectively, promote decision making at the staff nurse level, exert position power, and influence coordination of work to provide a milieu that maintains a stable cadre of nurses.
Multilead ST-segment monitoring in patients with acute coronary syndromes: a consensus statement for healthcare professionals. ST- Segment Monitoring Practice Guideline International Working Group
Authors: Drew BJ , Krucoff MW
Published: November 2019

BACKGROUND: ST-segment monitoring is underused by healthcare professionals for patients with acute coronary syndromes treated in emergency departments and intensive care units. OBJECTIVE: To provide clinically practical consensus guidelines for optimal ST-segment monitoring. METHODS: A working group of key nurses and physicians met in Dallas, Tex, in November 1998. RESULTS: Consensus was reached on who should and should not have ST monitoring, goals and time frames for ST monitoring in various diagnostic categories, what electrocardiographic leads should be monitored, what equipment requirements are needed, what strategies improve accuracy and clinical usefulness of ST monitoring, and what knowledge and skills are required for safe and effective ST monitoring. CONCLUSIONS: Because changes in the ST segment can shift among various electrocardiographic leads in the same person over time owing to different ischemic mechanisms, 12-lead ST monitoring is recommended. Recommended monitoring times are as follows: myocardial infarction or unstable angina, 24 to 48 hours or until patient is event-free for 12 to 24 hours; chest pain prompting a visit to an emergency department, 8 to 12 hours; catheter-based interventions with less definitive interventional outcomes requiring monitoring in an intensive unit, 6 to 12 hours; and cardiac surgery or noncardiac surgery in patients with coronary disease or risk factors, 24 to 48 hours. An ST measurement point of J + 60 ms makes it unlikely that measurement will coincide with the upslope of the T wave, even in patients with sinus tachycardia. Accurate and consistent lead placement and careful electrode and skin preparation are imperative to improve the clinical usefulness of ST monitoring.
Survey of nursing practices with closed-system suctioning
Authors: Paul-Allen J , Ostrow CL
Published: November 2019

BACKGROUND: The limited literature on closed-system suctioning suggests a need for further research in this area. Information is lacking about the frequency of use of the closed versus the open system of suctioning and about the current patterns of practice of closed-system suctioning among nurses. OBJECTIVES: To determine the frequency of use of closed- versus open-system suctioning by critical care nurses and to describe the endotracheal suctioning practices of nurses who use closed-system suctioning, in particular the current practice of hyperoxygenation and hyperinflation. METHODS: A survey developed by the investigators was mailed to a stratified proportional sample of 241 critical care nurses who are members of the American Association of Critical-Care Nurses in a tristate area in the mid-Atlantic region of the United States. The 19-item questionnaire included both open and forced-choice items. The response rate was 50%. RESULTS: Closed-system suctioning is common in the critical care setting, and current nursing practices of closed-system suctioning vary. Use of hyperoxygenation is more common than use of hyperinflation with closed-system suctioning. Nurses had knowledge deficits about the proper performance of hyperoxygenation and hyperinflation. CONCLUSIONS: Further research on closed-system suctioning is warranted, especially on the practices of hyperoxygenation and hyperinflation and the effect of these interventions on the prevention of suctioning-induced hypoxemia.
Effects of 3 analgesic regimens on the perception of pain after removal of femoral artery sheaths
Authors: Fulton TR , Peet GI , McGrath MA , Hilton JD , Smith RE , Sigurdsson AF , Forrest QG
Published: November 2019

BACKGROUND: Effective pain management after removal of femoral artery sheaths after percutaneous transluminal coronary angioplasty is highly individualized and requires frequent, accurate assessment and administration of analgesics as needed. OBJECTIVE: To determine which of 3 analgesic regimens is most effective in decreasing patients' perception of pain with the fewest side effects after removal of a femoral artery sheath. SAMPLE: 130 adult who had undergone percutaneous transluminal coronary angioplasty and were in an 8-bed cardiac short-stay unit in a 1400-bed acute care hospital. METHOD: Patients were randomized to receive either intravenous morphine, intravenous fentanyl, subcutaneous lidocaine around the sheath site, or an intravenous placebo before sheath removal. Rescue analgesia (intravenous fentanyl) was made available to all groups. Patients used a visual analog scale to assess pain within 10 minutes before, 1 minute after, and 20 minutes after sheath removal. Pain levels, frequency of side effects, and use of rescue analgesia were compared among groups. RESULTS: Age, sex, number of stents, and frequency of hematomas did not differ significantly among groups. Pain ratings, use of rescue analgesia, and side effects (nausea, vomiting, or vasovagal symptoms) were not significantly different among treatment groups. Ratings of pain were slightly higher immediately after sheath removal in all groups. CONCLUSION: For most patients, removal of femoral artery sheaths and manual compression for hemostasis are relatively pain-free. Pain scores among patients given analgesia with subcutaneous lidocaine, intravenous morphine, or intravenous fentanyl were not significantly different from pain scores among control patients.
Differences between men and women in anxiety early after acute myocardial infarction
Authors: Kim KA , Moser DK , Garvin BJ , Riegel BJ , Doering LV , Jadack RA , McKinley S , Schueler AL , Underman L , McErlean E
Published: November 2019

BACKGROUND: Anxiety after acute myocardial infarction influences both short- and long-term recovery. Therefore, determining specific subgroups of patients who have relatively higher anxiety levels is important. Published findings about gender differences in anxiety after acute myocardial infarction are conflicting. OBJECTIVES: To determine whether gender differences in anxiety after acute myocardial infarction exist and whether any of the sociodemographic and clinical variables that often differ between men and women with acute myocardial infarction interact with gender to influence anxiety. METHODS: A total of 424 patients with confirmed acute myocardial infarction were enrolled in this multicenter prospective study. Patients' anxiety level was measured within 72 hours of their arrival at the hospital by using the State Anxiety Inventory and the Brief Symptom Inventory. RESULTS: Women had significantly higher anxiety than did men according to both the State Anxiety Inventory (42 +/- 12.9 vs 37.7 +/- 12.5; P = .001) and the Brief Symptom Inventory (0.83 +/- 0.97 vs 0.63 +/- 0.71; P = .02). Of the sociodemographic and clinical variables examined, only marital status and income significantly interacted with gender to influence anxiety. Married women had higher anxiety than did single and widowed women, and married men had lower anxiety than did single men. Women with lower income had higher anxiety than did women with higher income; income was not related to anxiety in men. CONCLUSION: Women report significantly greater anxiety early after acute myocardial infarction than men do. Women's greater anxiety may be partially explained by marital status and lower income at the time of the infarction.
Temperature measurement in critically ill adults: a comparison of tympanic and oral methods
Authors: Giuliano KK , Giuliano AJ , Scott SS , MacLachlan E , Pysznik E , Elliot S , Woytowicz D
Published: November 2019

BACKGROUND: Despite increasing use of tympanic thermometers in critically ill patients who do not have a pulmonary artery catheter in place, variations in measurements obtained with the thermometers are still a problem. OBJECTIVE: To compare the range of variability between tympanic and oral electronic thermometers. METHODS: Subjects were a convenience sample of 72 patients admitted to a 24-bed adult medical-surgical intensive care unit. For each patient, temperatures were measured concurrently (within a 1-minute period) with an oral (Sure Temp 678) thermometer, a pulmonary artery catheter (Baxter VIP Swan-Ganz Catheter), and 2 tympanic (FirstTemp Genius II and ThermoScan Ear Pro-1) thermometers. Each subject was used up to 3 times for data collection. Measurements obtained with the oral and tympanic thermometers were compared with those obtained with the pulmonary artery catheter. Nonparametric analysis of data was used. RESULTS: The magnitude of error for the ThermoScan tympanic thermometer differed significantly from that of the Genius II tympanic thermometer and the SureTemp oral thermometer (P < .001). Application of the Bland and Altman method to frame the data on the basis of an accuracy tolerance zone of +/-0.5 degrees C indicated variability with both the oral and tympanic methods. The overall degree of variability was lower for the oral thermometer. CONCLUSIONS: Oral thermometers provide less variable measurements than do tympanic thermometers. Use of oral thermometry is recommended as the best practice method for temperature evaluation in critical care patients when measurement of core temperature via a pulmonary artery catheter is not possible.
A novel device in evaluating syncope
Authors: Futterman LG , Lemberg L
Published: November 2019

Syncope may be a manifestation of many diseases. The etiology is often difficult to determine. Much effort, time, and expense have been required to determine a diagnosis. A thorough history and physical examination are essential (Table 3). Several clinical pearls may be of help in the diagnosis of syncope: (a) the most important elements in the evaluation of syncope are a detailed history and physical examination; (b) syncope is a common problem in young healthy adults and the elderly; (c) a heavy meal is a specific cause of syncopy in the elderly (postprandial), however this etiology often goes unrecognized; (d) syncope is caused by 1 of 3 mechanisms: decreased cardiac output, systemic vascular resistance, or cerebrovascular disease; (e) reflex-mediated syndromes (vasovagal) are common causes of syncope in young adults, and orthostatic hypotension is an important cause of syncope in the elderly; and (f) the 1-year mortality of cardiac syncope (18%-33%) is significantly higher than that from non-cardiac syncope (0%-12%). A proven and useful tool has recently been advanced to aid in the evaluation of syncope. The Reveal Plus insertable loop recorder has auto activation that allows automatic capture and recording of arrhythmic events. Patient activation is an option. The recorder lasts 12 to 14 months and has proven to be a valuable and reliable cost-effective asset in our quest to evaluate syncope.
Influence of stress and nursing leadership on job satisfaction of pediatric intensive care unit nurses
Authors: Bratt MM , Broome M , Kelber S , Lostocco L
Published: November 2019

BACKGROUND: High levels of stress and the challenges of meeting the complex needs of critically ill children and their families can threaten job satisfaction and cause turnover in nurses. OBJECTIVE: To explore the influences of nurses' attributes, unit characteristics, and elements of the work environment on the job satisfaction of nurses in pediatric critical care units and to determine stressors that are unique to nurses working in pediatric critical care. METHOD: A cross-sectional survey design was used. The sample consisted of 1973 staff nurses in pediatric critical care units in 65 institutions in the United States and Canada. The following variables were measured: nurses' perceptions of group cohesion, job stress, nurse-physician collaboration, nursing leadership, professional job satisfaction, and organizational work satisfaction. RESULTS: Significant associations (r = -0.37 to r = -0.56) were found between job stress and group cohesion, professional job satisfaction, nurse-physician collaboration, nursing leadership behaviors, and organizational work satisfaction. Organizational work satisfaction was positively correlated (r = 0.35 to r = 0.56) with group cohesion, professional job satisfaction, nurse-physician collaboration, and nursing leadership behaviors. Job stress, group cohesion, job satisfaction, nurse-physician collaboration, and nursing leadership behaviors explained 52% of the variance in organizational work satisfaction. Dealing with patients' families was the most frequently cited job stressor. CONCLUSIONS: Job stress and nursing leadership are the most influential variables in the explanation of job satisfaction. Retention efforts targeted toward management strategies that empower staff to provide quality care along with focal interventions related to the diminishment of stress caused by nurse-family interactions are warranted.
Early versus late tracheostomy in patients who require prolonged mechanical ventilation
Authors: Brook AD , Sherman G , Malen J , Kollef MH
Published: November 2019

OBJECTIVES: To compare the clinical outcomes of early versus late tracheostomy in patients who require prolonged mechanical ventilation. METHODS: A prospective observational study was done. The sample was a cohort of 90 patients who had tracheostomy in the medical intensive care unit of a university-affiliated teaching hospital. Primary outcome measures were duration of mechanical ventilation and total cost of hospitalization. Tracheostomy was defined as early if performed by day 10 of mechanical ventilation and late if performed thereafter. RESULTS: Fifty-three patients had early tracheostomy (mean +/- SD = day 5.9 +/- 7.2 of ventilation), and 37 patients had late tracheostomy (mean +/- SD = day 16.7 +/- 2.9) (P < .001). The mean (+/- SD) duration of mechanical ventilation was 28.3 +/- 28.2 days in the early-tracheostomy group versus 34.4 +/- 17.8 days in the late-tracheostomy group (P = .005). Total cost of hospitalization was significantly lower in the early-tracheostomy group (mean +/- SD = $86,189 +/- $53,570) than in the late-tracheostomy group (mean +/- SD = $124,649 +/- $54,282) (P = .001). Male sex (adjusted odds ratio = 3.84; 95% CI = 2.32-6.34; P = .007) and higher ratios of PaO2 to fraction of inspired oxygen (adjusted odds ratio = 1.01; 95% CI = 1.00-1.01; P = .03) were associated with early tracheostomy. The timing of tracheostomy was not associated with hospital mortality. CONCLUSION: Early tracheostomy is associated with shorter lengths of stay and lower hospital costs than is late tracheostomy among patients in the medical intensive care unit. Prospective clinical trials are necessary to determine the optimal timing of tracheostomy in that setting.
Effect of backrest position on intracranial and cerebral perfusion pressures in traumatically brain-injured adults
Authors: Winkelman C
Published: November 2019

BACKGROUND: Backrest positioning for brain-injured adults is variable. Some data support using a flat backrest to optimize cerebral perfusion pressure; other data support elevating the head of the bed at least 30 degrees to reduce intracranial pressure. OBJECTIVE: To determine whether a flat backrest position or a backrest elevation of 30 degrees provides both optimal cerebral perfusion pressure and optimal intracranial pressure in adults with brain injuries. METHODS: A randomized crossover experimental design was used to collect data on 8 adults 18 to 45 years old who had nonvascular, closed-head, traumatic brain injury. Repeated-measures multivariate analysis of variance was used to analyze the data. RESULTS: Overall, compared with use of a flat/horizontal position, use of a backrest elevation of 30 degrees resulted in significant and clinically important improvements in both intracranial and cerebral perfusion pressures. None of the subjects experienced adverse clinical changes in either intracranial pressure or cerebral perfusion pressure with either backrest position. CONCLUSION: The results strengthen the research foundation for raising the backrest position for adults, 18 to 45 years old, who have nonvascular, nonpenetrating, severe brain injuries.
Subjectively perceived quality of life after coronary artery bypass surgery
Authors: Ross AC , Ostrow L
Published: November 2019

BACKGROUND: Judgment of quality of life after coronary artery bypass surgery is usually based on objective measures of cardiovascular status. Quality of life cannot be determined solely objectively because such indicators do not explain how persons perceive and experience their lives. OBJECTIVES: To assess the quality of life and mood state over time in patients undergoing coronary artery bypass grafting and to improve understanding of subjective perceptions of well-being and how these perceptions change over time. METHODS: Three questionnaires, the Quality of Life Index, the Medical Outcomes Study 36-Item Short-Form Health Survey, and the Profile of Mood States, were administered at 3 different times (before surgery, 6 weeks after surgery, and 3 months after surgery) to a convenience sample of hospitalized adults undergoing coronary artery bypass surgery for treatment of coronary artery disease. RESULTS: For all 3 questionnaires, responses differed significantly over time. Mean scores were significantly different over time for total mood disturbance (P = .03), the socioeconomic domain of the Quality of Life Index (P = .02), and the physical functioning (P = .004), vitality (P = .007), and social functioning (P = .002) dimensions of the 36-item short-form survey. CONCLUSIONS: Subjective perceptions of physical and psychological well-being changed significantly from before surgery to 3 months after surgery. Measures of mood state, physical functioning, vitality, and social functioning improved significantly over time. However, satisfaction with the socioeconomic domain decreased significantly from before surgery to 3 months after surgery.
Critical care nurses' knowledge of arterial pressure monitoring
Authors: McGhee BH , Woods SL
Published: November 2019

BACKGROUND: Direct monitoring of arterial blood pressure provides continuous, real-time information about patients' physiological status. Critical care nurses set up and maintain monitoring systems and use the obtained data to guide clinical decisions. Inaccurate measurements may lead to misdiagnosis and mismanagement. PURPOSE: To describe critical care nurses' knowledge in 3 content areas related to direct monitoring of arterial blood pressure: physiology, technical aspects, and waveform and data interpretation. METHODS: Via poster advertisements, 391 critical care nurses in 6 intensive care units at 2 hospitals were invited to complete an 18-item, criterion-referenced questionnaire on monitoring arterial blood pressure and a demographic data sheet. Summary statistics were used to analyze data from 68 subjects. Analysis of variance was used to determine if total and subset scores differed among demographic subgroups. RESULTS: Scores ranged from 11.1% to 61.1% correct answers, with a mean of 36.7% (SD, 11.8%). Item analysis indicated a knowledge deficit in all content areas at all cognitive levels. Questions with highest scores addressed waveform damping and using mean arterial pressure to guide treatment; lowest scores were related to dynamic response characteristics and reflected pressure waves. Mean scores did not differ among demographic subgroups. CONCLUSIONS: The results suggest a general knowledge deficit in arterial blood pressure monitoring. This study should be replicated on a larger scale to validate its findings and to improve the validity and reliability of the research tool. National research-based standards of practice for hemodynamic monitoring should be developed and disseminated among critical care nurses.
Lp(a) lipoprotein--an independent risk factor for coronary heart disease after menopause
Authors: Futterman LG , Lemberg L
Published: November 2019

Lp(a) is an independent risk factor for recurrent atherosclerotic heart disease in men and women after menopause. Excess levels of Lp(a) are seen in both males and females, more common in Africans, African Americans, and Asian populations than in whites. Since the standard lipid profile does not report Lp(a), it has to be ordered separately. Screening for Lp(a) should be considered under the following circumstances: (a) patient or family history of premature atherosclerotic heart disease, (b) familial history of hyperlipidemia, (c) established atherosclerotic heart disease with a normal routine lipid profile, (d) hyperlipidemia refractory to therapy, and (e) history of recurrent arterial stenosis. Treatment options are (a) a new extended-release form of niacin 3 to 4 g daily (although most effective in lowering Lp(a) and in reducing atherosclerotic heart disease mortality rates, its use may be limited because of side effects); (b) estrogen replacement after menopause, (however, concomitant progesterone therapy dilutes the effectiveness of estrogens); (c) lowering LDL with statins (generally effective in atherosclerotic heart disease but has no effect on Lp(a) levels), (d) aspirin and antibiotics (may be effective when C-reactive protein levels are high); and (e) folic acid (reduces homocysteine levels). The general measures that halt the progression of CAD should always be adhered to, namely, maintaining normal weight, a daily exercise program, blood pressure control, a low-cholesterol-forming diet, and daily aspirin.
Quiet time: a nursing intervention to promote sleep in neurocritical care units
Authors: Olson DM , Borel CO , Laskowitz DT , Moore DT , McConnell ES
Published: November 2019

BACKGROUND: Patients in intensive care units are often sleep deprived, yet little research exists on the impact of nursing care on promoting sleep. OBJECTIVES: To determine if implementing a "quiet time" protocol to reduce external environmental stimuli is associated with increased frequency of sleep among patients in a neurocritical care unit. METHODS: Patients were observed 8 times each day before and after implementation of a protocol in which environmental sounds and lights were decreased from 2 AM to 4 AM and from 2 PM to 4 PM. Data collected at 2:45 AM, 3:30 AM, 2:45 PM, and 3:30 PM on patients with scores of 10 or greater on the Glasgow Coma Scale were analyzed. A total of 2975 observations were made on a total of 239 patients: 1446 observations on 118 patients in the control group and 1529 observations on 121 patients in the intervention group. RESULTS: The percentage of patients observed asleep was significantly higher during the months the quite-time period was implemented than during the control period before the intervention was started. The increase in sleep behavior was associated with decreased sound and light levels achieved during the quiet time. Patients observed during the intervention period were 1.6 times more likely to be asleep during the quiet time than were patients observed during the control period (P < .001). CONCLUSIONS: A concentrated effort by staff to reduce environmental stimuli at discrete preset intervals increases the likelihood of sleep during scheduled quiet time in the neurocritical care unit.
A national survey of critical care nurses' practices related to administration of neuromuscular blocking agents
Authors: Foster JG , Kish SK , Keenan CH
Published: November 2019

BACKGROUND: Recommendations on use of neuromuscular blocking agents include using peripheral nerve stimulators to monitor depth of blockade and concomitantly administering sedatives and/or analgesics. OBJECTIVE: To evaluate critical care nurses' practices in administering neuromuscular blocking agents. METHODS: A 16-item survey was mailed to 483 acute care facilities in the United States. Of these, 246 surveys (51%) were returned and analyzed to determine use of neuromuscular blocking agents, peripheral nerve stimulators, sedatives, and analgesics. Logistic regression analysis was used to find independent predictors of use of peripheral nerve stimulators. RESULTS: Seventy-five percent of respondents reported long-term use of neuromuscular blocking agents in critically ill patients. Of those, 63% monitored the level of blockade with peripheral nerve stimulators. Reasons for not using peripheral nerve stimulators included unavailability of equipment (48%), lack of training (36%), and insufficient evidence that peripheral nerve stimulators improve care (23%). Predictors of use of stimulators were facilities with more than 150 beds (P < .001) and administration of neuromuscular blocking agents by continuous infusion (P < .001). Ninety-five percent of respondents reported using concurrent analgesics/sedatives always or most of the time. Facilities with fewer than 10 beds in the intensive care unit used concurrent analgesics/sedatives significantly less often than did facilities with 10 beds or more (90% vs 98%, respectively; P = .03). CONCLUSIONS: Small and large facilities differ in concomitant use of analgesics/sedatives and peripheral nerve stimulators. Education and research are needed to ensure that patients receive adequate monitoring and sedation during administration of neuromuscular blocking agents.
Effect of nurse-to-patient ratio in the intensive care unit on pulmonary complications and resource use after hepatectomy
Authors: Dimick JB , Swoboda SM , Pronovost PJ , Lipsett PA
Published: November 2019

BACKGROUND: Nurse-to-patient ratios in the intensive care unit are associated with postoperative mortality, morbidity, and costs after some high-risk surgery. OBJECTIVE: To determine if having 1 nurse caring for 1 or 2 patients ("more nurses") versus 1 nurse caring for 3 or more patients ("fewer nurses") in the intensive care unit at night is associated with differences in clinical and economic outcomes after hepatectomy. METHODS: Statewide observational cohort study of 569 adults who had hepatic resection, 1994 to 1998. Hospital discharge data were linked to a prospective survey of organizational characteristics in the intensive care unit. Multivariate analysis was used to determine the association of nighttime nurse-to-patient ratios with in-hospital mortality, length of stay, hospital costs, and specific postoperative complications. RESULTS: A total of 240 patients at 25 hospitals had fewer nurses; 316 patients in 8 hospitals had more nurses. No significant association between nighttime nurse-to-patient ratios and in-hospital mortality was detected. The overall complication rate was 28%. By univariate analysis, patients with fewer nurses had increased risks for pulmonary failure (5.8% vs 1.6%, relative risk, 3.6; 95% CI, 1.3-10.1; P=.006) and reintubation (10.8% vs 1.9%, relative risk, 5.7; 95% CI, 2.4-13.7; P<.001). By multivariate analysis, patients with fewer nurses had increased risk for reintubation (odds ratio, 2.9; 95% CI, 1.0-8.1; P=.04) and a 14% increase (95% CI, 3%-23%; P=.007) or an additional $1248 (95% CI, $384-$2112; P = .005) in total hospital costs. CONCLUSIONS: Fewer nurses at night is associated with increased risk for specific postoperative pulmonary complications and with increased resource use in patients undergoing hepatectomy.
Thoughts, feelings, and motivations of bystanders who attempt to resuscitate a stranger: a pilot study
Authors: Skora J , Riegel B
Published: November 2019

BACKGROUND: Rates of bystander cardiopulmonary resuscitation remain low nationwide. Possibly, low rates can be explained by examining the reactions of laypersons who attempt to resuscitate a stranger. OBJECTIVE: To examine the thoughts, feelings, and motivations of laypersons who have attempted to resuscitate a stranger. METHOD: Survey methods were used to do a qualitative study of 12 laypersons who had provided bystander resuscitation. A 36-item questionnaire of predominately open-ended questions was used to elicit retrospective information about the laypersons' thoughts, feelings, and motivations during several stages of the resuscitation event. Data were analyzed by using content analysis. RESULTS: Thoughts about the event included curiosity, questioning of personal capability, and recognition of differences between classroom training and real-life events. Feelings included hope, euphoria, pride, relief, satisfaction, hopelessness, doubt, agitation, anger, sadness, and fear. Primary motivations were duty and responsibility, guilt and social pressure, and altruism. All participants reported that they had excellent recall of the event. CONCLUSION: These results provide insight into a population that acts on behalf of the medical community.
Electrocardiographic Abnormalities in Patients With Subarachnoid Hemorrhage
Authors: Sommargren Claire E.
Published: November 2019

Subarachnoid hemorrhage is a serious neurological disorder that is often complicated by the occurrence of electrocardiographic abnormalities unexplained by preexisting cardiac conditions. These morphological waveform changes and arrhythmias often are unrecognized or misinterpreted, potentially placing patients at risk for inappropriate management. Many previous investigations were retrospective and relied on data collected in an unsystematic manner. More recent studies that included use of serial electrocardiograms and Holter recordings have provided new insight into the high prevalence of electrocardiographic changes in subarachnoid hemorrhage. Research on the prevalence, duration, and clinical significance of these electrocardiographic abnormalities and on associated factors and etiological theories is reviewed.
Effect of Positioning on Oxygenation in Single-Lung Transplant Recipients
Authors: George Elisabeth L. , Hoffman Leslie A. , Boujoukos Arthur , Zullo Thomas G.
Published: November 2019

• Background Many benefits and adverse effects of positioning are related to changes in ventilation and perfusion. A number of unique factors related to the allograft make the effects of positioning difficult to determine in single-lung transplant recipients.

• Objectives To determine the effect of 3 body positions (supine, lateral with allograft lung down, and lateral with native lung down) on oxygenation and blood flow in single-lung transplant recipients in the 24 hours immediately after surgery.

• Methods A quasi-experimental repeated-measures design with stratified assignment to 1 of 3 different sequencing patterns for turning group was used to study 15 transplant recipients, 9 with emphysema and 6 with fibrosis. Oxygenation, ventilation, and blood flow measures (heart rate, blood pressure) were assessed after each turn. The effect of ischemic reperfusion injury was also explored.

• Results The oxygenation, ventilation, and blood flow variables did not differ significantly across group, diagnosis, or time. Oxygenation variables measured when the allograft lung was dependent did not differ significantly from such measurements obtained when the native lung was dependent.

• Conclusions No single position maximizes oxygenation in the immediate postoperative period in single-lung transplant recipients. Although a single standard protocol for positioning cannot be supported, the study does support the idea that transplant recipients can be safely turned in the immediate postoperative period without compromising oxygenation or hemodynamic status.
Using a Collaborative Weaning Plan to Decrease Duration of Mechanical Ventilation and Length of Stay in the Intensive Care Unit for Patients Receiving Long-Term Ventilation
Authors: Henneman Elizabeth , Dracup Kathleen , Ganz Tomas , Molayeme Orna , Cooper Christopher B.
Published: November 2019

• Background Patients requiring mechanical ventilation for prolonged periods typically are sicker and have more comorbid illnesses than do patients who can be weaned more rapidly. As a result, the weaning process is often complex, requiring shared decision making by a skilled, multidisciplinary team. Unfortunately, many of the structures used in critical care units to plan and evaluate care do not lend themselves to collaborative management of patients.

• Objective To evaluate the effect of a collaborative weaning plan on outcomes, including duration of mechanical ventilation, for patients treated with mechanical ventilation for 7 days or more.

• Methods A collaborative weaning plan (weaning board and flow sheet) was introduced into the medical intensive care unit at the University of California Los Angeles, Medical Center. A historical design was used to compare outcomes before and after the plan was used. The primary outcome variable was duration of mechanical ventilation. Other outcomes studied included length of stay in the unit, cost, prevalence of complications (ie, reventilation, readmission to the intensive care unit), and mortality rate.

• Results The collaborative weaning plan decreased duration of ventilation by 4.9 days (P = .02) and decreased median length of stay in the unit by 4.5 days (P = .004). The median cost per stay in the unit decreased from $50 462 to $37 330 (P = .004). The prevalence of complications did not differ significantly between groups.

• Conclusions Collaborative structures (eg, weaning boards, flow sheets) are useful in decreasing duration of mechanical ventilation for patients receiving long-term ventilation.
Effect of an Outcomes-Managed Approach to Care of Neuroscience Patients by Acute Care Nurse Practitioners
Authors: Russell Dale , VorderBruegge Mary , Burns Suzanne M.
Published: November 2019

• Objective To improve clinical and financial outcomes for neuroscience patients by using an “outcomes-managed” model of care delivery and 2 acute care nurse practitioners as outcomes managers.

• Methods Baseline data from the year before implementation of the care model were compared with data from the first 6 months of implementation. A random list of 122 adult patients admitted to the neuroscience intensive care unit or the acute care neurosurgery unit of a university teaching hospital between January and December 1998 was generated to provide the baseline data. The prospective sample included 402 patients admitted to either unit during the first 6 months of the project (January through June 1999). The acute care nurse practitioners used an evidence-based multidisciplinary plan of care to manage all patients.

• ResultsNo differences were found in age, sex, or ethnicity between groups. Patients managed by acute care nurse practitioners had significantly shorter overall length of stay (P = .03), shorter mean length of stay in the intensive care unit (P<.001), lower rates of urinary tract infection and skin breakdown (P<.05), and shorter time to discontinuation of the Foley catheter and mobilization (P < .05). The outcomes-managed group was hospitalized 2306 fewer days than the baseline group, at a total cost savings of $2 467 328.

• Conclusions Clinical and financial outcomes are improved significantly by identifying patients at risk, monitoring for complications, and having acute care nurse practitioners manage the patients.
Acute Care Nurse Practitioners: Creating and Implementing a Model of Care for an Inpatient General Medical Service
Authors: Howie Jill N. , Erickson Mitchel
Published: November 2019

Changes in medical education and healthcare reimbursement are recent threats to most academic medical centers’ dual mission of patient care and education. Financial pressures stem from reduced insurance reimbursement, capitation, and changes in public funding for medical residency education. Pressures for innovation result from increasing numbers of patients, higher acuity of patients, an aging population of patients with complex problems, and restrictions on residency workloads. A framework for addressing the need for innovation in the medical service at a large academic medical center is presented. The framework enables acute care nurse practitioners to provide inpatient medical management in collaboration with a hospitalist. The model’s development, acceptance, successes, pitfalls, and evaluation are described. The literature describing the use of nurse practitioners in acute care settings is reviewed.
Outcomes of and Resource Consumption by High-Cost Patients in the Intensive Care Unit
Authors: Welton John M. , Meyer Anthony A. , Mandelkehr Larry , Fakhry Samir M. , Jarr Sandra
Published: November 2019

• Background Care of patients in an intensive care unit is among the most costly in hospitals. Little is known about high-cost patients within the intensive care unit or their outcomes of care.

• Objectives To examine outcomes of and resource consumption by high-cost adult patients who received care in an intensive care unit at an academic medical center.

• Methods Data on patients admitted during the period January 1, 1995, through June 30, 1999, were analyzed retrospectively. An intensive care unit database, the hospital discharge data set, and a cost-accounting data set were used to determine the total intensive care unit cost for the hospitalization. Patients were then stratified into cost deciles. Hospital and intensive care unit outcomes for patients in the top decile were compared with those of patients in the other deciles.

• Results Cost data were available on 10606 of the 11244 patients who received care in an intensive care unit. Patients in the top decile accounted for 48.7% of all intensive care unit costs, and 67.6% of this group survived to discharge despite prolonged care. Patients transferred from an outside hospital were more likely to be in the top decile, have a longer stay in the intensive care unit, or die than were the other patients.

• Conclusions A small group of patients accounts for a disproportionately higher amount of intensive care unit resources but has a relatively high survival rate. This cohort should be treated as an intact group that is not amenable to traditional cost-cutting measures.
The patient with lower urinary tract trauma
Authors: Weiskittel P , Sommers MS
Published: November 2019

The nursing care of the patient with lower urinary tract trauma depends upon the location and extent of the injury. Following stabilization of the airway, breathing, and circulation (and after neurologic evaluation) the nurse focuses on abdominal and urinary tract assessment. By using the results of a physical examination, diagnostic testing, and urinalysis, the nurse develops a plan of care. This plan provides the patient with relief of pain, control of infection, emotional support, and management of alterations in fluid and electrolyte balance. Early recognition of the extent of injury and knowledgeable management of potential complications from injury enable the critical care nurse to maximize the patient's own compensatory mechanisms and minimize long-term effects.
Vasovagal syncope
Authors: Waddell S
Published: November 2019

To return to the patient's syncopal episode, it is clearer now that he probably did have a vasovagal reaction. An hour had elapsed since administration of morphine, making that etiology unlikely. The patient showed no evidence of heart block or acute ischemia. While nitrate induced hypotension may have contributed to his faint, that would not have explained his bradycardia. Worth noting is the fact that he developed nausea and lost consciousness as an arterial puncture was about to be performed. Had he been asked, the patient might have recalled other incidents of vasovagal fainting. A combination of factors may cause a brief syncopal episode in the ICU. Sorting out the causes of vasovagal syncope may be difficult if not impossible, and a syncopal episode may set a chain of events into motion that further complicates the situation. The patient with an acute, especially inferior MI who received intravenous medications is particularly prone to vagal-like reactions. Patients with nausea or extreme anxiety should be watched carefully and their symptoms treated.