Abstract
Surgical quality improvement efforts have focused on tracking and reducing postoperative mortality and morbidity. However, the prevalence of intraoperative adverse events (IAEs) and their association with postoperative surgical outcomes has been poorly studied. In this study, we detected IAEs using both retrospective chart review and prospective provider reporting. We then examined the association of IAEs with postoperative outcomes.The overall IAE detection rate per case was 0.7 and 0.07 (P < 0.0001) based on chart review and provider reporting, respectively. Types of IAEs varied between detection methods. Provider-reported IAEs were more serious, i.e., had a stronger association with 30-day postoperative complications than chart-identified IAEs (risk-adjusted odds ratios were 1.52 vs 1.02, respectively, both p < 0.0001).Our findings suggest that IAEs can be detected using either retrospective chart review or prospective provider reporting. However, provider reporting appears more likely to detect serious (albeit infrequent) IAEs compared to chart review.
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