Introduction: The July effect is the widely held belief that medical care is compromised at the beginning of the academic year due to transitioning medical trainees. We determined its impact on surgical outcomes in urological surgery.
Methods: The Healthcare Cost and Utilization Project State Inpatient Database, State Ambulatory Surgery and Services Database and State Emergency Department Database for California were used for the years 2007 to 2011. Patients were identified who underwent surgery in July, August, April and May, and separated into early (July and August) and late (April and May) cohorts. Surgical outcomes for early vs late surgery were compared for academic centers. Adjusted multivariate models were fit to determine the effect of early surgery as a predictor of adverse outcomes.
Results: For major urological surgery July/August timing had no impact on length of stay, 30-day readmission, 30-day emergency room visits, never events, perioperative complications or mortality (all values p >0.05). Similarly, for stone, groin, bladder outlet and cystoscopic bladder procedures, July/August surgery had no impact on rates of urinary retention, emergency room visits within 30 days, clot evacuations within 30 days, perioperative complications or 30-day readmissions (all values p >0.05). At the end of the year cystectomies had increased odds of intraoperative complications (OR 0.63, 95% CI 0.4-0.97) while nephrectomies had higher odds of major complications (OR 0.69, 95% CI 0.53-0.89).
Conclusions: Surgical outcomes are not compromised by having surgery at the beginning of the academic year, despite resident turnover, representing appropriate oversight during this potentially vulnerable time.
Keywords: academic medical center; education; internship and residency; medical; operative; surgical procedures; treatment outcome.