Cefepime Versus Piperacillin-Tazobactam for the Treatment of Intra-Abdominal Infections Secondary to Potential AmpC Beta-Lactamase-Producing Organisms.

Background: Recent studies have established cefepime as an effective treatment option for AmpC beta-lactamase (AmpC) Enterobacterales; however, the efficacy of beta-lactam/beta-lactamase inhibitors is unclear. Objective: The objective of this study was to determine if piperacillintazobactamis an appropriate alternative to cefepime for the treatment of intra-abdominal infections (IAIs) secondary to AmpC-producing organisms. Methods: This multicenter, retrospective cohort study was conducted in hospitalized adults with an IAI caused by an AmpC-producing organism and received either cefepime or piperacillin-tazobactam for definitive treatment after a source control procedure. The primary outcome was a composite of surgical site infections, recurrent IAIs, or in-hospital mortality. Secondary outcomes included the individual components of the composite outcome, hospital length of stay (LOS), microbiologic failure, study antibiotic duration, time to clinical resolution, and incidence of Clostridioides difficile infection (CDI). Results: This study included 119 patients. There was no difference in the primary outcome between the cefepime and piperacillin-tazobactam groups (35% vs 27%, P = 0.14). Microbiological failure was the only secondary outcome with an observed difference between groups (17% vs 0%, P = 0.01): hospital LOS (15 vs 13 days, P = 0.09), days of therapy (7 vs 7 days, P = 0.87), time to clinical resolution (7 vs 4 days, P = 0.30), and CDI (1% vs 2%, P = 0.58) were all similar.

Preoperative Simulation of Retropubic Midurethral Sling to Decrease Bladder Perforation Rate Among Obstetrics and Gynecology Residents.

IMPORTANCE: Bladder perforation is an often avoidable complication of retropubic midurethral sling procedures. Bladder injury rates decrease with surgeon experience, but literature on techniques to train novice surgeons is limited. OBJECTIVE: Our objective was to decrease the bladder perforation rate among obstetrics and gynecology residents during retropubic midurethral sling procedures through implementation of an instructional video and low-fidelity simulation. STUDY DESIGN: A baseline bladder perforation rate was determined by retrospective chart review. A prospective educational intervention, consisting of a 10-minute instructional video with preoperative simulation using a simple bony pelvis model, was then implemented among residents on the urogynecology service from December 2017 through March 2020. The primary outcome was the change in the bladder perforation rate. Compliance with the intervention protocol was a secondary outcome. Categorical data were evaluated using the χ 2 or Fisher exact test. Continuous variables were assessed using the Student t test or Mann-Whitney U test as appropriate. RESULTS: Two hundred fifteen retropubic midurethral sling cases were included in analysis. There were no significant demographic differences between the patients undergoing surgery preintervention and postintervention. Resident surgeons were in their second (47.4%) and third (52.6%) years of training. The postintervention bladder perforation rate was 6.5%, which is a 35% reduction from the preintervention perforation rate of 10% ( P = 0.19). The instructional video and preoperative simulation were successfully implemented in 193 of 215 (89.8%) eligible cases. CONCLUSION: Despite high compliance, the combination of the instructional video and preoperative low-fidelity bony pelvis simulation was not effective in reducing tension-free vaginal tape-associated bladder perforations among residents.