Prognosis and risk factors of electrocoagulation syndrome after endoscopic submucosal dissection in the colon and rectum. Large cohort study.

Lesions with size ≥ 40 mm, lesions with fibrosis, old age, and amount of submucosal injection per square meter were independent risk factors. Therefore, caution should be exercised when performing colorectal ESD in patients with these risk factors.