The need for culture swabs in laparoscopically treated appendicitis

Area of Science:

• General Surgery
• Surgical Microbiology

Background:

• Appendicitis is a common cause of acute abdomen, with intra-abdominal cultures a routine surgical practice.
• Previous studies suggest limited efficacy of intra-abdominal cultures in open appendectomies.

Purpose of the Study:

• To evaluate the necessity of intra-abdominal cultures during laparoscopic appendectomies.

Main Methods:

• A retrospective analysis of 369 patients with acute appendicitis between 2007 and 2012.
• Laparoscopic appendectomy was performed in 62% of cases.
• Intra-abdominal cultures were obtained in all open procedures and 42% of laparoscopic procedures.

Main Results:

• Negative culture results were observed in 57% of patients.
• Commonly isolated bacteria included Escherichia coli (76.5%), Proteus mirabilis (13.7%), Pseudomonas aeruginosa (4.9%), and Citrobacter freundii (4.9%).
• No statistically significant difference in postoperative morbidity was found between laparoscopic groups with and without intra-operative cultures (p > 0.05).

Conclusions:

• Postoperative outcomes are primarily influenced by appendix pathology, not microbiological findings.
• Routine intra-operative cultures in laparoscopic appendectomies provide minimal value for patient management.
• Intra-operative swabbing should be reserved for selected high-risk patient groups.