Azhar Qureshi, Naheed Sultan, Adnan Aziz, Bashir Sheikh.
Sensitivity of Ultrasonography in the Diagnosis of acute appendicitis ascompared to clinical, peroperative and histopathologic findings.
Pak J Surg Jan ;30(3):205-10.

Objectives: To evaluate sensitivity of ultrasonography(USG) in the diagnosis of acute appendicitis compare to clinical, per-operative and histopathologic fi ndings. Acute appendicitis is one of the most common surgical emergencies. Although it is very common but the diagnosis is sometimes very diffi cult. With the advent of diff erent laboratory investigations and ultrasonography the diagnosis can be made with more accuracy thus reducing negative appendicectomies and unnecessary morbidity. Study Design: A comparative study. Sett ing & Duration: Th e study was conducted at surgical unit 1 of Civil Hospital Karachi from 1-12-2007 till 15-10-2009. Methodology: A total of 75 patients with clinical suspicion of acute appendicitis were admitted from the emergency department of Civil Hospital, Karachi were included in the study. All patients were submitt ed for emergency ultrasound, a proforma was use to record investigative workup, operative fi ndings and for fi nal histipathological diagnosis record. Results: Ultrasound showed acute appendicitis in 56 (75%) patients, while 19 (25%) patients did not have acute appendicitis on ultrasound. Histopathological diagnosis were made in 59 patients out of 75 clinically suspected. In these 75 clinically suspected patients 54 were diagnosed as acute appendicitis on ultrasound while 5 were not diagnosed by ultrasound. On the other hand 16 patients were histopathologically negative for acute appendicitis in which 14 were also negative on ultrasound and only 2 were showed acute appendicitis on ultrasound. So ultrasonography provided a specifi city of 87.5%, sensitivity of 91.5% and accuracy of 90.7%. Conclusion: We concluded that ultrasonography was useful to rule out the diagnosis of acute appendicitis and helped to avoid unnecessary appendicectomies and reduced negative laparotomy.

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