Objectives: The objectives of this study were (1) to validate the Alvarado score and pediatric appendicitis score (PAS) in a prospectively identified pediatric cohort and (2) to assess abdominal ultrasonography (AUS) as a tool to increase the diagnostic reliability of both scores.
Patients And Methods: Prospective study conducted from January 10, 2008, to January 1, 2009. All patients attended at the emergency department with suspected acute appendicitis (AA) who had a blood sample collected were included.