Selection of two intrathoracic anastomosis methods for transabdominal radical surgery for Siewert type II adenocarcinoma of the esophagogastric junction

There is no significant difference between the OrVil and overlap anastomosis in terms of the feasibility and safety; however, OrVil anastomosis can provide a higher margin of resection of the esophagus and is suitable for tumors with extensive esophageal invasion.