Abstract

Endoscopic submucosal dissection (ESD) is widely accepted as less invasive technique for early gastric cancer (EGC). If resected specimen shows positive vertical margin after ESD (vertical margin positive ESD), additional surgery is generally recommended, however, residual tumor rate and long term outcomes of endoscopic surveillance among patients with vertical margin positive ESD have not been reported. This study aimed to investigate the prognosis of EGC patients with positive vertical margin after ESD.

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