PAS — Paediatric appendicitis

Pediatric Appendicitis Score (PAS)

Principle

Sum of eight clinical and laboratory criteria; total 0–10.

Scope

Suspected appendicitis in children aged 4 to 15 years, the population studied in 2002. Original variant, distinct from Alvarado and later PAS pathways.

Interpretation limits

The score alone neither confirms nor excludes appendicitis. Examination, course and reassessment remain necessary; no automatic indication for imaging, intervention or discharge. The original does not set a numeric threshold for fever or neutrophilia; no additional threshold or severity band is invented.

Formula and logic

Sum of explicit contributions, without prior rounding.

Definition version : 0.1.0

Sources

• Samuel · Journal of Pediatric Surgery — Pediatric Appendicitis Score

  2002 · Original study, children 4–15 years; eight criteria, two weighted 2; white blood cells ≥10 000/mm³ (Table 2).

• Samuel · copie institutionnelle University of Florida — Pediatric Appendicitis Score · texte intégral et Tableau 2

  2002 · Visual reading of the threshold ≥10 000; fever and neutrophilia without a defined numeric threshold in the original.