Intraoperative culturing during surgery for acute appendicitis

Area of Science:

• Surgical Pathology
• Infectious Disease
• Clinical Microbiology

Background:

• Appendectomy is a common surgical procedure for acute appendicitis.
• Intraoperative cultures are sometimes used to guide antibiotic therapy.
• The necessity and utility of routine intraoperative cultures in appendectomy remain debated.

Purpose of the Study:

• To evaluate the necessity and usefulness of intraoperative cultures during appendectomy for suspected acute appendicitis.
• To determine if positive intraoperative cultures predict postoperative infection or influence antibiotic selection.

Main Methods:

• Retrospective analysis of consecutive records from 608 patients undergoing appendectomy.
• Assessment of the correlation between intraoperative culture results and postoperative infectious morbidity.
• Evaluation of the impact of culture results on antibiotic selection.

Main Results:

• No operative deaths occurred; postoperative infectious morbidity was 6.4%.
• Positive intraoperative cultures were weakly predictive of postoperative infection.
• Culture results did not influence the selection of antibiotics for patients.

Conclusions:

• Routine intraoperative culturing during appendectomy is generally not cost-effective or necessary.
• Intraoperative cultures may be beneficial only in select high-risk patient populations.
• The findings suggest a need to reconsider the routine use of intraoperative cultures in appendectomy.