Sensibilidad y especificidad del ultrasonido en apendicitis aguda en mujeres en el Hospital Vicente Corral Moscoso, 2013

Abstract

Objective: To validate the effectiveness of abdominal ultrasound in women with clinical suspicion of acute appendicitis. Methodology: Descriptive study of diagnostic test, 323 patients with clinically suspected acute appendicitis who presented to the emergency area Vicente Corral Moscoso hospital between February and July 2013 were included. An abdominal ultrasound was performed to confirm the diagnosis and sensitivity, specificity, positive and negative predictive values in both women and men was measured and a general evaluation of the results was performed. Result: 323 abdominal ultrasounds were performed to assess the probable diagnosis of acute appendicitis determined by the patient's clinical, obtaining globally sensitivity 78.52% (73.29%-83.74%), specificity 78.52% (73.29%-83.74%), positive predictive value 84.81% (80.03%-89.59%) and negative predictive value of 36.05% (25.32%-46.78%). Correspond to 170 women and 153 men, in women there was sensitivity 76.38% (68.6%-84.16%), specificity 41.86% (25.95%-57.77%), positive predictive value 79.51% (71.94%-87.08%) and negative predictive value of 37.5% (22.76%-52.24%). In men found sensitivity of 80.62%, specificity 54.17%, positive predictive value 90.43% and negative predictive value of 34.21%. Conclusions: The diagnosis of acute appendicitis remains a clinical but abdominal ultrasound has an overall performance in our acceptable medium, due to its accessibility and low cost is the ideal test when faced with borderline cases especially women adnexal pathology and its use in men is restricted to cases greater diagnostic doubt. My results validated the sensitivity of the test with low level of specifity. Keywords: ACUTE APPENDICITIS, ACUTE ABDOMEN, ABDOMINAL ULTRASOUND.