The efficacy of antibiotic treatment versus surgical treatment of uncomplicated acute appendicitis: Systematic review and network meta-analysis of randomized controlled trial

Am J Surg. 2019 Jul;218(1):192-200. doi: 10.1016/j.amjsurg.2018.10.009. Epub 2018 Oct 9.

Abstract

Background: The efficacy of antibiotics in appendicitis remains controversial, and physicians are not confident in prescribing antibiotics as the first line treatment. This network meta-analysis was conducted to assess the efficacy and safety of individual antibiotics in uncomplicated appendicitis.

Methods: Randomized controlled trials (RCTs) were identified from MEDLINE and SCOPUS databases since inception to July 2017.

Studies: Network meta-analysis was applied to estimate treatment effects and safety. Probability of being the best treatment was estimated using surface under the cumulative ranking curve (SUCRA).

Results: Among 9 RCTs meeting our inclusion criteria. A network meta-analysis indicated that those receiving antibiotics had about 12-32% lower chance of treatment success and lower risk of complication about 23-86%, especially Beta-lactamase than appendectomy. The overall appendicitis recurrence rate in the antibiotic group was about 18.2%. The SUCRA indicated that appendectomy was ranked first for treatment success and least complications, followed by Beta-lactamase.

Conclusions: Appendectomy is still the most effective treatment in uncomplicated appendicitis but it carries complications. Beta-lactamase, might be an alternative treatment if there are any contraindications for operation.

Keywords: Antibiotics treatment; Network meta-analysis; Uncomplicated appendicitis.

Publication types

  • Meta-Analysis
  • Research Support, Non-U.S. Gov't
  • Systematic Review

MeSH terms

  • Anti-Bacterial Agents / therapeutic use*
  • Appendectomy
  • Appendicitis / drug therapy*
  • Appendicitis / surgery
  • Humans
  • Randomized Controlled Trials as Topic

Substances

  • Anti-Bacterial Agents