Obstetric Anal Sphincter Injury Management at a Tertiary Academic Birthing Center: A Quality Improvement Initiative [ID 2683441

Abstract

INTRODUCTION: As a quality improvement project, we implemented an evidence-based management protocol to optimize outcomes after obstetric anal sphincter injuries (OASIS). The aim was to evaluate compliance with practice guidelines for antibiotic use, standardized surgical technique and documentation, utilization of a bowel regimen, and short-term outpatient follow-up after a resident educational OASIS program. METHODS: An OASIS practice guideline was implemented via a curriculum utilizing didactics and simulation with porcine sphincter models to demonstrate primary prevention, proper diagnosis, repair technique, documentation, and post-procedure OASIS management. Pre (August 2018 to July 2022) and post-intervention (August 2022 to July 2023) cohorts were compared for characteristics and provider adherence to guidelines. We used control charts, chi-squared, and Student's t-tests to estimate the effect of the intervention. RESULTS: Among 226 OASIS cases, 168 were pre-intervention and 58 were post-intervention. Proper documentation of OASIS repair increased from 13 (7.7%) pre-intervention to 24 (41.4%) post-intervention (risk ratio [RR] 7.57; 95% CI, 4.3–13.1); proper antibiotic use increased from 79 (47.0%) pre-intervention to 39 (67.2%) post-intervention (RR 1.42; CI, 1.12–1.18); and utilization of bowel regimen increased from 147 (87.5%) to 56 (96.6%) post-intervention (RR 1.1; CI, 1.02–1.18). There was no change in close follow-up appointment attendance (81.0% for both groups; P=.98). Control charts showed a process change in bowel regimen use and OASIS documentation, but no significant change in antibiotic use or close follow-up appointments. CONCLUSION: Implementation of an evidence-based management guideline was associated with increased compliance with evidence-based practices. Future improvement cycles are necessary to optimize outpatient follow-up after OASIS.