ESD for early rectal cancer registered in the German ESD registry

Aims Endoscopic submucosal dissection (ESD) is an established procedure to remove early rectal neoplasia. A curative resection is defined by the following criteria: R0, L0, V0, G1/2, submucosal invasion depth ≤1000 µm. The limit of ≤1000 µm has already been reviewed controversially in other studies as data supporting the 1000µm margin is weak. We examined the importance of this criterion in relation to the curative resection rate.