Keep it Simple, Laboratory Parameters to Predict Complicated Acute Appendicitis in Children Younger Than Five Years

Area of Science:

• Pediatric Surgery
• Clinical Diagnostics
• Laboratory Medicine

Background:

• Diagnosing acute appendicitis in children under 5 presents challenges due to non-specific symptoms.
• Differentiating between simple and complicated appendicitis is crucial for treatment decisions (non-surgical vs. surgical).
• Routine laboratory values, alongside clinical presentation and imaging, are vital for accurate diagnosis.

Purpose of the Study:

• To evaluate the efficacy of routine blood parameters in differentiating complicated from uncomplicated acute appendicitis in young children.
• To identify specific laboratory markers that can aid in the diagnostic process for acute appendicitis in this age group.

Main Methods:

• Retrospective analysis of pediatric surgery cases from 2010-2020.
• Inclusion criteria: children aged 5 years or younger who underwent surgery for acute appendicitis.
• Evaluation of routine laboratory values including C-reactive protein, white blood cell count, neutrophil/lymphocyte ratio, and platelet/lymphocyte ratio.

Main Results:

• Significant differences were observed in C-reactive protein, white blood cell count, neutrophil/lymphocyte ratio, and platelet/lymphocyte ratio between complicated and uncomplicated appendicitis groups.
• Combined laboratory parameters demonstrated 84.8% sensitivity and 80.9% specificity for predicting complicated appendicitis.
• These predictive values surpassed those of the Alvarado score and the Pediatric Appendicitis Score (PAS).

Conclusions:

• C-reactive protein, neutrophil/lymphocyte ratio, and platelet/lymphocyte ratio are effective simple laboratory markers for distinguishing complicated from uncomplicated appendicitis in children under 5.
• These universal parameters can assist in guiding treatment and surgical decisions for this challenging pediatric population.
• The study highlights the utility of routine blood tests in improving diagnostic accuracy for acute appendicitis in young children.