Endoscopic submucosal dissection: experience in an Australian tertiary center.

BACKGROUND: Endoscopic submucosal dissection (ESD) is a technique for en bloc resection of superficial tumors of the gastrointestinal tract. In contrast to Japan and other Asian countries, few data are available in Western countries. The objective of the current study was to evaluate the experience of ESD in a single Australian tertiary center. METHODS: The patient features, outcomes and complications of ESD of 20 lesions in 18 patients at a single center between 2008 and 2012, were evaluated retrospectively. RESULTS: Twenty lesions, in 18 patients of median age 69.5 years, were resected with ESD. Ten patients had gastric lesions (of whom two had two synchronous lesions), four patients had rectal lesions, one had a colonic lesion, one had a duodenal lesion and two had esophageal lesions. The median (range) lesion size was 2.5 (0.5-6.5) cm. In the entire cohort, en bloc resection occurred in 80% cases and complete histological resection was achieved in 60% cases. Significant bleeding requiring repeat endoscopy and transfusion occurred in two cases and microscopic perforation occurred in 1 case. Surgery for unsuccessful ESD was pursued without complication in 6 cases. There were two recurrences during follow up of median 36 months, both of which occurred in cases of gastric ESD and one of which (carcinoid) occurred after surgery. CONCLUSIONS: ESD appears feasible in an Australian population. It should however be contemplated in carefully selected patients whilst there is refinement of pre-treatment diagnosis, the ESD technique and the management of its complications.