Early Predictors of Abscess Development after Perforated Pediatric Appendicitis

Area of Science:

• Pediatric Surgery
• Gastroenterology
• Infectious Diseases

Background:

• Perforated appendicitis occurs in approximately one-third of pediatric appendicitis cases.
• Advanced appendicitis increases the risk of post-operative complications and hospital readmission.
• Predicting abdominal abscess formation early is challenging, necessitating identification of risk factors.

Purpose of the Study:

• To identify specific risk factors for post-operative abdominal abscesses in children with perforated appendicitis.
• To potentially streamline post-operative care by identifying high-risk patients early.
• To improve patient outcomes and reduce hospital stays.

Main Methods:

• Retrospective review of perforated appendicitis cases over 12 months at a children's hospital.
• Inclusion criteria: patients who developed an abscess despite a minimum of seven days of antibiotic therapy.
• Exclusion criteria: patients presenting or readmitted with an abscess; analysis of demographics, labs, diet, and vital signs.

Main Results:

• Of 59 perforated appendicitis cases, 44 were analyzed; 18.2% developed an abscess.
• Patients with abscesses had significantly longer hospital stays (13.4 vs. 6.9 days).
• Tolerating a regular diet by postoperative day 3 was associated with a significantly lower abscess rate (0% vs. 34.8%, p<0.01).
• Late leukocytosis (days 5-7) also correlated with abscess presence (p<0.05).

Conclusions:

• Dietary progression to a regular diet by postoperative day 3 is a significant protective factor against post-operative abscesses in perforated appendicitis.
• No other early post-operative parameters reliably predicted abscess formation.
• Findings may guide risk stratification, potentially reducing length of stay for low-risk patients and enabling timely intervention for high-risk individuals.