Endoscopic ultrasound-guided ablation is a promising treatment for pancreatic cystic neoplasms - a systematic review.

With the increasing use of cross-sectional imaging, the incidence of non-symptomatic pancreatic cystic neoplasms is increasing. Surgical management of pancreatic cystic neoplasms possess significant risks of perioperative morbidity and mortality. Our aim was to evaluate endoscopic ultrasound (EUS)-guided ablation as a non-operative treatment of pancreatic cystic neoplasms. We performed a literature search in MEDLINE, Embase and Scopus. All clinical studies examining the safety and efficacy of EUS-guided pancreatic cyst ablation with radiofrequency, sclerosants, ethanol, chemotherapeutics or a combination hereof were included. A total of 17 studies were included. We found that EUS-guided pancreatic cyst ablation was feasible with complete resolution in up to 86% of cases after 3-12 months. The modality with the most promising results after 3-12 months was chemoablation with complete resolution rates ranging from 46 to 79% (median 64%). The most appropriate follow-up period was estimated to be 12 months. The risk of serious adverse events including pancreatitis was approximately 16%. Very few cyst recurrences have been documented following complete resolution after cyst ablation. EUS-guided cyst ablation of pancreatic cystic lesions seems effective and safe as an alternative to surgical resection in patients who are unfit for surgery or who have low-risk pancreatic cystic neoplasms.

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