COMPARISON OF MODIFIED ALVARADO SCORE AND ANDERSON SCORE IN PREDICTING ACUTE APPENDICITIS

General Surgery

Introduction: Acute Appendicitis is one of the most common surgical emergencies encountered by the General Surgeons with wide spectrum of presentation as well as diagnostic modalities. Modified Alvarado Score and Anderson Score are scoring systems used for diagnosis of acute appendicitis. This study aims to compare the diagnostic value of Anderson score with Modified Alvarado Score. Materials and methods: A prospective, analytical, hospital-based study was conducted in 71 patients presenting to Bir Hospital ER with features suggestive of acute appendicitis. History and clinical examination, related laboratory investigations were collected and Modified Alvarado score and Anderson score were calculated. These scores were compared to Histopathology report after appendectomy based on operating surgeon decision with regards to Sensitivity, Specificity, Positive Predictive Value, Negative Predictive Value and Diagnostic accuracy to predict acute appendicitis. Result: 71 patients were enrolled with mean age of 29.68 ±10.88 years with Male to female ratio of 1.08:1. Sensitivity, Specificity, Positive Predictive Value, Negative Predictive Value and Accuracy for Modified Alvarado Score and Anderson Score respectively were 77 % vs 93.4%; 60% vs 80%; 88.23% vs 96.6%; 30% vs 66.6%; and 53% vs 93.4%. Negative Appendectomy Rate was 14.08%. Conclusion: Anderson scores have better sensitivity, specificity, positive predictive value and accuracy for diagnosis of Acute Appendicitis than Modified Alvarado Score. The negative predictive value compared to Modified Alvarado Score is also higher in Anderson score.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.