Reference growth curves for normal appendiceal diameter in childhood.

Area of Science:

• Pediatric Surgery
• Medical Imaging
• Human Growth and Development

Background:

• The appendix diameter (AD) is a key metric in pediatric surgical evaluations.
• Understanding normal AD growth is crucial for diagnosing appendicitis and other conditions.
• Previous studies have not comprehensively analyzed AD in relation to multiple growth parameters in children.

Purpose of the Study:

• To investigate the relationship between appendiceal diameter (AD) and age, sex, height, and body weight in children.
• To establish reference ranges for normal AD growth during childhood.
• To provide data for improved clinical interpretation of AD measurements in pediatric patients.

Main Methods:

• Retrospective analysis of 188 pediatric patients (<16 years) undergoing laparoscopic surgery.
• Statistical examination of the correlation between AD and age, sex, height, and weight.
• Multivariate analysis to assess independent predictors of AD.

Main Results:

• The median AD was 5 mm (range, 3.2-8.1 mm).
• A significant positive correlation was found between AD and age (R=0.396, P<0.001).
• AD showed significant positive correlations with height and weight (P<0.001 for both). No significant sex-based difference was observed (P=0.500).

Conclusions:

• Appendiceal diameter in children is positively correlated with age, height, and weight.
• While a reference curve for AD can be clinically useful, significant individual variations exist.
• The growth of AD is not uniform throughout childhood, necessitating consideration of these factors in clinical assessments.