Intra-abdominal abscess after laparoscopic appendectomy for perforated appendicitis.

Area of Science:

• Pediatric Surgery
• Surgical Outcomes
• Infectious Disease

Background:

• Appendicitis is a common surgical emergency in children.
• Laparoscopic appendectomy is increasingly used, but its safety in perforated appendicitis requires careful evaluation.
• Postoperative intra-abdominal abscess is a known complication of appendectomy.

Purpose of the Study:

• To compare the incidence of postoperative intra-abdominal abscess after laparoscopic versus open appendectomy in pediatric patients with perforated appendicitis.
• To assess the relative risk of developing an abscess based on surgical approach.

Main Methods:

• Historical cohort study of 453 pediatric patients undergoing appendectomy for suspected appendicitis between 1974 and 1999.
• Comparison of postoperative intra-abdominal abscess rates between laparoscopic appendectomy (3-trocar approach) and open appendectomy (right lower quadrant incision).
• Statistical analysis, including relative risk ratio, controlled for confounding factors.

Main Results:

• In cases of perforated appendicitis (170 patients), the postoperative abscess rate was 24% for laparoscopic appendectomy versus 4.2% for open appendectomy.
• Laparoscopic appendectomy was associated with a 5.6-fold increased risk of postoperative abscess in perforated appendicitis (95% CI, 2.1-16.0).
• No statistically significant difference in abscess rates was observed for all cases of acute, gangrenous, and perforated appendicitis combined (6.4% vs 3.0%).

Conclusions:

• Laparoscopic appendectomy is associated with a significantly higher incidence of postoperative intra-abdominal abscess in pediatric patients with perforated appendicitis compared to open appendectomy.
• The findings suggest a need for careful consideration of surgical technique in perforated appendicitis cases.
• Further research may be warranted to explore strategies to mitigate this risk.