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Underweight body mass index as a predictive factor for surgical site infections after laparoscopic appendectomy

Mina Cho1, Jeonghyun Kang2, Im-Kyung Kim1

  • 1Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.

Yonsei Medical Journal
|October 18, 2014
PubMed
Abstract

Insights

Underweight body mass index (BMI) significantly increases the risk of surgical site infections (SSIs) after laparoscopic appendectomy (LA). Surgeons should exercise increased caution with underweight patients undergoing LA to prevent SSIs.

Area of Science:

  • Surgical outcomes research
  • Infectious disease epidemiology
  • Laparoscopic surgery

Background:

  • Surgical site infections (SSIs) are a significant concern following appendectomy.
  • Risk factors for SSIs after laparoscopic appendectomy (LA) require further investigation.
  • The specific impact of underweight body mass index (BMI) on SSIs after LA remains unclear.

Purpose of the Study:

  • To determine the association between underweight BMI and the incidence of SSIs after LA.
  • To identify predictive factors for SSIs in patients undergoing LA.

Main Methods:

  • Retrospective analysis of 101 patients aged ≥16 years who underwent LA.
  • Comparison of SSI rates across BMI categories: underweight, normal, and overweight/obese.
  • Univariate and multivariate analyses to identify risk factors for SSIs.

Main Results:

  • The overall SSI rate was 12.8%.
  • Underweight patients had the highest superficial incisional SSI rate (44.4%) compared to normal (11.0%) and overweight/obese (0%) groups (p=0.006).
  • Underweight BMI was a significant independent predictor of SSIs (OR 10.0, 95% CI 2.0-49.5, p=0.005).

Conclusions:

  • Underweight BMI is a significant risk factor for SSIs after LA.
  • Increased vigilance is recommended for preventing SSIs in underweight patients undergoing LA.
Keywords:
Appendicitisbody mass indexlaparoscopic appendectomymorbiditysurgical site infection

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