From 1000 patients referred with diagnosis of appendicitis 483 were tr
eated operatively, 517 conservatively. Laparotomy and histopathologic
examination confirmed the correct indication for surgery in 95.2 % of
patients with preoperatively expected perforation, in 72.0 % with the
diagnosis of acute inflammation, and in 84.0 % when a chronic disease
was anticipated preoperatively.