Objective. This sLiniy aimed to evaluate the el feet of resident involvement and the 'July effect' on peri-operative complications after parotidectomy.Method. The American College of Surgeons National Surgical Quality Improvement Program database was queried for parolideciomy procedures with resident involvement between 2005 and 2014. Results. There were 11 733 cases were identified, of which 932 involved resident participation (7.S) per cent). Resident involveinenl resulted in a significantly lower reoperation rate (adjusted odds ratio, 0.18; 95 per cent confidence interval, 0.05-0.73; p - 0.02) and readmission rate (adjusted odds ratios 0.30; 95 per cent confidence interval, 0.11 0.80); p - 0.02). However, resident involvement was associated with a mean 2'l minutes longer adjusted operative lime and 23.5 per cent longer adjusted total hospital length of stay (respective p < 0.01). No significant difference in surgical or medical complication rales or mortality-was found when comparing cases among academic quarters.ConcIusion. Resident participation is associated with significantly decreased reoperation and readmission rales a;; well as longer mean operative limes and total length of slay. Resident transitions dining July are not associated with increased risk of adverse peri-operative outcomes after parolidectomy.
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