Risk factors for post-appendicectomy intra-abdominal abscess.

Area of Science:

• Surgical outcomes and complications
• Gastrointestinal surgery
• Infectious disease in surgery

Background:

• Appendicectomy is a common emergency surgery with typically low complication rates.
• Post-appendicectomy intra-abdominal abscesses are a significant concern for patients and surgeons.
• This study investigates the incidence and risk factors for these abscesses.

Purpose of the Study:

• To determine the incidence of post-appendicectomy intra-abdominal abscess formation.
• To identify risk factors associated with the development of intra-abdominal abscesses after appendicectomy.
• To compare complication rates between open and laparoscopic appendicectomy techniques.

Main Methods:

• Retrospective review of appendicectomies performed at Christchurch Hospital in 1995.
• Data collected included surgical approach, histological diagnosis, and postoperative complications.
• Analysis of 417 appendicectomy cases (331 open, 66 laparoscopic, 20 laparotomy).

Main Results:

• An overall incidence of 1.4% for post-appendicectomy intra-abdominal abscesses was observed.
• All six abscesses occurred in the open appendicectomy group, associated with perforated or gangrenous appendicitis (P < 0.001).
• No abscesses were reported after laparoscopic appendicectomy; however, two iatrogenic perforations occurred.

Conclusions:

• The incidence of intra-abdominal abscess after appendicectomy is 1.4%.
• Gangrenous or perforated appendicitis is the sole identified risk factor for post-appendicectomy intra-abdominal abscess.
• Laparoscopic appendicectomy showed no cases of intra-abdominal abscess in this study.