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Diagnostic yield of endoscopic ultrasound in patients with hypoglicemia and insulinoma suspected.
Endoscopic Ultrasound 2015 January
BACKGROUND AND OBJECTIVES: Noninvasive imaging techniques have shown limitations to identify insulinomas. In few studies reported so far, endoscopic ultrasound (EUS) has proven to be able to locate lesions. The aim of this study was to compare the performance of computed tomography versus EUS for the detection of insulinomas.
MATERIALS AND METHODS: In a retrospective manner prospectively collected data were analyzed. Patients with hypoglucemia and hyperinsulinemia were included. Diagnostic yield was measured in relationship to sensitivity, specificity, positive predictive value, negative predictive value and accuracy. Surgical specimens were considered the gold standard.
RESULTS: Sensitivity, positive predictive value, and accuracy of EUS was 100%, 95.4% and 95.4%, respectively. In the case of CT the sensitivity was 60%, specificity 100%, positive predictive value 100%, negative predictive value 7%, and accuracy were 68%.
CONCLUSIONS: EUS is useful in the preoperative assessment of patients with hypoglycemia and serum hyperinsulinemia.
MATERIALS AND METHODS: In a retrospective manner prospectively collected data were analyzed. Patients with hypoglucemia and hyperinsulinemia were included. Diagnostic yield was measured in relationship to sensitivity, specificity, positive predictive value, negative predictive value and accuracy. Surgical specimens were considered the gold standard.
RESULTS: Sensitivity, positive predictive value, and accuracy of EUS was 100%, 95.4% and 95.4%, respectively. In the case of CT the sensitivity was 60%, specificity 100%, positive predictive value 100%, negative predictive value 7%, and accuracy were 68%.
CONCLUSIONS: EUS is useful in the preoperative assessment of patients with hypoglycemia and serum hyperinsulinemia.
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