Streptococcus milleri in intraabdominal abscesses in children after appendectomy: incidence and course

Marjolein M N Leeuwenburgh1, Valerie Monpellier, Bart J M Vlaminckx

  • 1Department of Surgery, Sint Antonius Hospital, Mailbox 2500, 3430 EM Nieuwegein, The Netherlands. m.m.leeuwenburgh@amc.uva.nl

Abstract

Insights

Intraabdominal abscesses are common after pediatric appendectomy, particularly with perforated appendicitis. The pathogen Streptococcus milleri may indicate a more complex recovery, highlighting the need for targeted management.

Area of Science:

  • Pediatric Surgery
  • Infectious Diseases
  • Gastroenterology

Background:

  • Intraabdominal abscesses frequently complicate appendectomies in children.
  • Understanding the role of microbial pathogens is crucial for managing these complications.

Purpose of the Study:

  • To determine the incidence and clinical course of intraabdominal abscesses post-appendectomy in children.
  • To investigate the correlation between cultured pathogens and patient outcomes.

Main Methods:

  • Retrospective chart review of 259 pediatric patients (ages 1-18) undergoing appendectomy.
  • Confirmation of intraabdominal abscesses via abdominal ultrasound.
  • Analysis of surgical details, pus cultures, and postoperative courses.

Main Results:

  • An 7% incidence of intraabdominal abscesses was observed.
  • Abscesses were significantly more common after perforated appendicitis (23%) than simple appendicitis (2%).
  • Streptococcus milleri and Escherichia coli were the most frequent pathogens; S. milleri correlated with prolonged hospital stay and antibiotic treatment.

Conclusions:

  • The incidence of intraabdominal abscesses is notably high following perforated appendicitis in pediatric patients.
  • The presence of Streptococcus milleri may be associated with a more complicated postoperative course after appendectomy in children.

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