title: Intraabdominal abscess rate after laparoscopic appendectomy.
abstract: BACKGROUND
  Studies suggest increased intraabdominal abscess (IA) rates following laparoscopic appendectomy (LA), especially for perforated appendicitis. Consequently, an open approach has been advocated. The aim of our study is to compare IA rates following LA performed by a laparoscopic surgery and a general surgical service within the same institution.
  
  
  METHODS
  Data of LA patients treated at Los Angeles County-University of Southern California (LAC-USC) Medical Center between March 1992 and June 1997 were reviewed. The main outcome measure was postoperative IA.
  
  
  RESULTS
  In all, 645 LA were reviewed. A total of 413 LA (285 acute, 61 gangrenous, 67 perforated appendicitis) were performed by three general surgical services (10 attendings). Ten abscesses occurred postoperatively (2.4%), 6 with perforated appendicitis. After the laparoscopic service was introduced, 232 standardized LA (126 acute, 46 gangrenous, 60 perforated) were performed by two attendings. One IA occurred (gangrenous appendicitis). The IA rate for perforated appendicitis was significantly lower on the laparoscopic service (P = 0.025). There was no difference in IA rates for acute and gangrenous appendicitis. There was no mortality in either group.
  
  
  CONCLUSIONS
  IA rate following LA for perforated appendicitis was significantly reduced on the laparoscopic service. Mastery of the learning curve and addition of specific surgical techniques explained this improved result. Therefore, laparoscopic appendectomy for complicated appendicitis may not be contraindicated, even for perforated appendicitis.
authors.affiliation: Division of Emergency Non-Trauma Surgery and Minimally Invasive Surgery Program, University of Southern California, Los Angeles, California 90033, USA.
authors.forename: N
authors.initials: N
authors.lastname: Katkhouda
authors.forename: M H
authors.initials: MH
authors.lastname: Friedlander
authors.forename: S W
authors.initials: SW
authors.lastname: Grant
authors.forename: K K
authors.initials: KK
authors.lastname: Achanta
authors.forename: R
authors.initials: R
authors.lastname: Essani
authors.forename: P
authors.initials: P
authors.lastname: Paik
authors.forename: G
authors.initials: G
authors.lastname: Velmahos
authors.forename: G
authors.initials: G
authors.lastname: Campos
authors.forename: R
authors.initials: R
authors.lastname: Mason
authors.forename: E
authors.initials: E
authors.lastname: Mavor
mesh_terms: D018784:Abdominal Abscess / Q000209:etiology* / Q000517:prevention & control; D000293:Adolescent; D000328:Adult; D000368:Aged; D001062:Appendectomy / Q000379:methods*; D001064:Appendicitis / Q000473:pathology / Q000601:surgery; D002983:Clinical Competence; D005260:Female; D005734:Gangrene; D006801:Humans; D007416:Intestinal Perforation / Q000601:surgery; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000517:prevention & control; D016896:Treatment Outcome