Evaluating the effectiveness of a discharge protocol for children with advanced appendicitis

Area of Science:

• Pediatric Surgery
• Clinical Pathology
• Infectious Disease Management

Background:

• An evidence-based protocol for pediatric appendicitis management was implemented in 2006.
• Discharge criteria included clinical and laboratory parameters for advanced appendicitis cases.
• This study evaluates the role of laboratory values in the discharge protocol for advanced appendicitis.

Purpose of the Study:

• To assess the utility of laboratory values in guiding patient discharge for advanced appendicitis.
• To determine if laboratory markers can predict postoperative intra-abdominal abscess (IAA) formation.
• To refine discharge protocols for pediatric appendicitis.

Main Methods:

• Retrospective chart review of 450 patients with advanced appendicitis (2008-2009).
• Analysis of laboratory values (white blood cell count, band count) at discharge.
• Receiver operator curve analysis for sensitivity and specificity of laboratory values in predicting IAA.
• Logistic regression to identify IAA predictors.

Main Results:

• The postoperative IAA rate was 25%.
• White blood cell count >12,000/UL showed 52% sensitivity and 82% specificity for IAA (AUC 0.72).
• Elevated white blood cell count was independently associated with increased IAA likelihood (OR 1.27).
• Band count >3% had 47% sensitivity and 70% specificity for IAA (AUC 0.60).

Conclusions:

• Absence of leukocytosis aids in identifying children with decreased IAA risk who meet clinical discharge criteria.
• Laboratory evaluation, particularly white blood cell count, helps stratify patients at increased IAA risk.
• Band counts are less predictive of IAA risk compared to white blood cell counts.
• Laboratory values are valuable components of discharge criteria for advanced appendicitis, potentially guiding further antibiotic therapy.