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  • Title: Evaluating routine diagnostic imaging in acute appendicitis.
    Author: Unlü C, de Castro SM, Tuynman JB, Wüst AF, Steller EP, van Wagensveld BA.
    Journal: Int J Surg; 2009 Oct; 7(5):451-5. PubMed ID: 19559106.
    Abstract:
    AIM: To evaluate the impact of selective imaging on clinical management of patients who present with symptoms suggesting acute appendicitis. MATERIALS AND METHODS: During a two-and-half year period, 941 consecutive patients with right lower quadrant pain were analyzed. Patients who underwent selective imaging were compared to those treated without further imaging. RESULTS: In 650 (69%) patients with right lower quadrant pain, diagnosis was based on medical history, physical and laboratory examination only. The diagnostic accuracy was 84%. Another 291 patients (31%) underwent selective imaging reaching a diagnostic accuracy of 71%. Ultrasound was conducted in 277 patients (sensitivity: 59%; specificity: 91%). CT scan was conducted in 43 patients (sensitivity: 100%; specificity: 95%). CONCLUSION: The present study shows that, in the majority of patients, appendicitis acuta can be diagnosed without the aid of imaging studies. In all these cases, high diagnostic accuracy rates and low morbidity rates were achieved. In all the other cases when clinical diagnosis is uncertain, further evaluation should include imaging. In our series ultrasound is of limited value; CT scan or diagnostic laparoscopy seems superior.
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