To determine the efficacy, safety, and cost of managing perforated appendicitis with intravenous antibiotics followed by an interval appendectomy, the charts of 87 children with ruptured appendicitis were retrospectively reviewed. These patients were treated with intravenous fluid resuscitation and antibiotics (consisting of clindamycin and ceftazidime) and underwent appendectomy, either on that admission (n = 46) or as a delayed interval procedure (n = 41). Antibiotics in all cases were discontinued either at home or in the hospital after the child was a febrile for 48 hours with normal white and differential blood cell counts, and the two groups were compared. Seven patients (17%) "failed" the interval appendectomy protocol. All but one "failure" was due to the development or persistence for >72 hours of a bowel obstruction. The data are described below as percent or mean +/- 1 standard deviation. [table: see text] We conclude that antibiotics and interval appendectomy is a safe effective alternative for the management of perforated appendicitis. When successful, hospitalization, charges, and morbidity are less with this approach. A persistent bowel obstruction for 72 hours is an indication to proceed with appendectomy on admission.

The addition of aerosolized urokinase to this patient's treatment regimen helped to resolve life-threatening airway obstruction secondary to fibrin casts.