Long‐Term Prognostic Factors for Patients Aged 80 and Older With Superficial Esophageal Squamous Cell Carcinoma Undergoing Endoscopic Submucosal Dissection

Endoscopic submucosal dissection (ESD) is an acceptable treatment for superficial esophageal squamous cell carcinoma (ESCC) even in elderly patients. However, studies on the prognostic factors in very elderly patients are limited. Therefore, we aimed to explore the prognostic factors affecting overall survival (OS) in patients aged ≥ 80 with superficial ESCC who underwent ESD.