A preoperative predictive model for prolonged post-anaesthesia care unit stay after outpatient surgeries.

Study objective: To create a preoperative predictive model for prolonged post-anaesthesia care unit (PACU) stay for outpatient surgery and compare with an existing (University of California-San Diego, UCSD) model. Design: Retrospective observational study. Setting: Post-anaesthesia care unit. Patients: Outpatient surgical patients discharged on the same day in a large academic institution. Preoperative data were collected. The study period was three months in 2016. Measurements: Prolonged PACU stay defined as a length of stay longer than the third quartile. We utilized multivariate regression analyses and bootstrapping statistical techniques to create a predictive model for prolonged PACU stay. Main results: Four strong predictors for prolonged PACU stay: general anaesthesia, obstructive sleep apnoea, surgical specialty and scheduled case duration. Our model had an excellent discrimination performance and a good calibration. Conclusion: We developed a predictive model for prolonged PACU stay in our institution. This model is different from the UCSD model probably secondary to local and regional differences in outpatient surgery practice. Therefore, individual practice study outcomes may not apply to other practices without careful consideration of these differences.

Millennial Resident Study Habits and Factors that Influence American Board of Anesthesiology In-Training Examination Performance: A Multi-Institutional Study.

BACKGROUND: In this study, we described Millennial anesthesiology residents' learning preferences and study habits and how they correlate with performance on the In-Training Exam (ITE). METHODS: A confidential questionnaire including personal characteristics, previous examination performance, study habits, study material preferences, and perceived residency program support was emailed to 1047 anesthesiology residents from 30 ACGME-accredited residency programs across the United States. RESULTS: Four hundred and twelve residents (39.4%) responded to the survey, and 240 of those respondents (58.3%) self-reported their 2017 ITE scores. The majority (95.9%) were Millennials. Respondents preferentially used online multiple-choice questions (92.3%) to prepare for the ITE, but many also used traditional anesthesiology textbooks (35.5%) and review books (46.7%). Respondents preferred independent study (94.6%) to group study (5.4%), and handwritten notes (69.4%) to taking notes on a laptop (26.8%) or tablet (3.8%). Less than half (47.5%) of respondents felt supported by their residency program in exam preparation, and 30.7% felt lack of support. Factors correlated with ITE scores on univariate analysis included prior USMLE 1 scores (p < .0000) and USMLE 2 scores (p < .0000), clinical anesthesia year (p < .0000), test anxiety score (p = .0004), prior failure of the basic exam (p = .0026), and prior failure of any board exam (p = .0124). CONCLUSIONS: Millennial learners have consistent performance on ITE exams regardless of personal characteristics, preferred study methods, or materials used. Prior exam performance is the most important predictor of future performance. Currently available study materials are meeting residents' needs and preferences, and while residency program offerings do not affect ITE performance, residents would like to feel more supported.

Indications for TEE before cardioversion for atrial fibrillation: implications for appropriateness criteria.

The purpose of this study was to evaluate appropriateness of transesophageal echocardiography (TEE) before direct current cardioversion (DCC), investigate indications for TEE, and analyze if indications are predictive of outcome. According to American College of Cardiology Foundation/American Society of Echocardiography 2011 Appropriateness Criteria, TEE is appropriate in the evaluation of patients with atrial fibrillation (AF) to facilitate clinical decision making with regards to anticoagulation and/or DCC. However, it is unclear in which instances physicians utilize TEE. We reviewed 671 TEE studies in 604 AF patients (age 66 ± 13 years, 67% male) in which TEE was performed before DCC for left atrial thrombus (LAT)/sludge. Studies were divided by the main indication for TEE into the following 8 categories: 1) congestive heart failure (CHF)/hemodynamic compromise; 2) symptomatic; 3) new onset AF; 4) hospitalized and symptomatic; 5) high stroke risk; 6) subtherapeutic anticoagulation; 7) miscellaneous; and 8) inappropriate for TEE. The main indications for TEE before DCC were symptomatic (26.4%) and CHF/hemodynamic compromise (26.1%). We deemed 2.7% of the studies as inappropriate. LAT/sludge was found in 8.2% of studies. Incidence of LAT/sludge differed significantly between indications (p = 0.0021) and the highest incidences occurred in the high stroke risk (17.6%) and hospitalized and symptomatic (14.1%) categories. No LAT/sludge was found in the miscellaneous or inappropriate groups. Stroke occurred in 2.5% (n = 15) of all patients and in all groups except for miscellaneous and inappropriate (p = 0.3). TEE is appropriately used prior to DCC for patients with the main indications of symptomatic and CHF/hemodynamic compromise. In a minority of studies, TEE utilization was inappropriate. Incidence of LAT/sludge differed between indications.