ZenToks Publication

Chapter 9

Clinical Scoring Systems in the Diagnosis of Acute Appendicitis: An Update

Abstract/Preface

Acute appendicitis remains one of the most frequent surgical emergencies worldwide, posing significant diagnostic challenges due to its variable clinical presentation. Clinical scoring systems have been developed to standardize evaluation and improve diagnostic precision. Among the most widely used are the Alvarado score, the Pediatric Appendicitis Score (PAS), the Appendicitis Inflammatory Response (AIR) score, and the Adult Appendicitis Score (AAS). These tools integrate clinical signs, symptoms, and laboratory parameters to stratify patients based on the likelihood of appendicitis. However, their diagnostic performance varies across patient populations, including pediatric, adult, elderly, and pregnant individuals. This review examines the validation and clinical utility of various scoring systems, highlighting their strengths and limitations across different patient groups. Overall, clinical scoring systems serve as valuable adjuncts rather than standalone diagnostic tools. Their utility is maximized when integrated with clinical judgment and imaging modalities. Further refinement and population-specific validation are essential to enhance diagnostic accuracy and reduce unnecessary surgeries.