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Objective: Asymptomatic pancreatic cysts are frequently diagnosed on cross-sectional imaging. Recently, the American Gastroenterological Association (AGA) has put forth guidelines regarding management of these cysts. To date, there is no strong data to indicate whether these guidelines will accurately identify malignancy and mitigate unnecessary endoscopic ultrasound (EUS) procedures. The aim of this investigation was to apply the 2015 AGA guidelines to a retrospective cohort of asymptomatic pancreatic cysts in a large regional referral center. Materials and Methods: This is a retrospective cohort study of patients with asymptomatic pancreatic cysts who underwent EUS with fine-needle aspiration (FNA) over a 3-year period. We applied current AGA guidelines to determine how many EUS procedures would be avoided, and further assessed whether the guidelines adequately identified cases of malignancy. Results: Forty-five patients were identified who underwent EUS FNA for an asymptomatic pancreatic cyst from 2011 to 2014. The mean age was 65 years, and the mean size cyst size was 2.8 cm. According to the 2015 AGA guidelines, EUS was indicated in 13 of the 45 patients and surveillance imaging in the remaining 32 patients. 3 of these 32 patients had atypical cytology on EUS FNA, and final histology showed adenocarcinoma in 2 patients and IMPN with high-grade dysplasia in 1 patient. Conclusion: Applying AGA guidelines in this study cohort would have prevented 32 out of 45 (71%) EUS procedures; however, 3 of these 32 patients had early occult malignancy. This data suggest that additional strategies are needed to identify those patients at high risk.

journal of digestive endoscopy

Application of 2015 American Gastroenterological Association Guidelines On a Retrospective Cohort of Patients with Asymptomatic Pancreatic Cysts: Can We Truly Forego Endoscopic Ultrasound?