Accuracy and sensitivity of RIPASA score Versus Alvarado score in diagnosis of acute appendicitis.

Abstract

Background: Acute appendicitis (AA) is a prevalent emergency involving the abdomen that necessitates prompt attention and has a significant risk of negative appendectomy. Objective: To compare the sensitivity and diagnostic accuracy of RIPASA and Alverado scoring systems of acute appendicitis in correlation with intra-operative findings. Patients and Methods: This prospective study included 193 patients with acute appendicitis All items of RIPASA score and Alverado score were reported with a cut off value of 7.5 for RIPASA and 7 for Alverado and correlated to the postoperative histopathology. Results: The mean age of the included patients was 33.25 ± 11.39 years. The histopathological outcome in correlation to RIPASA score 84% of cases were true positive while 8.3% were true negative while the correlation with Alverado score 73% of cases were truly positive and 12.4% were truly negative. There was a statistically significant difference between both RIPASA and Alverado scores where RIPASA score was significantly more sensitive and accurate than Alverado with Higher NPV while Alverado score was more specific. Conclusion: According to the current results, RIPASA score is a reliable, feasible for Diagnosis of AA with high sensitivity, positive predictive value, and Diagnostic accuracy in comparison with the Alverado score.