Billroth-I reconstruction using an overlap method in totally laparoscopic distal gastrectomy: propensity score matched cohort study of short- and long-term outcomes compared with Roux-en-Y reconstruction

Background Delta-shaped anastomosis is an established procedure for intracorporeal Billroth-I reconstruction (B-I). However, this procedure has several technical and economic problems. The aim of the current study was to present the technique of B-I using an overlap method (overlap B-I), which is a side-to-side intracorporeal gastroduodenostomy in laparoscopic distal gastrectomy (LDG), and to evaluate the short- and long-term outcomes of this overlap B-I procedure.