D1-plus vs D2 nodal dissection in gastric cancer. A propensity score matched comparison and review of published literature
Background: The results of D1-plus lymphadenectomy following gastric resection are seldom investigated. The aim of this study was to compare results of D1-plus vs D2 resections and to provide a literature review. Methods: Patients who underwent upfront R0 gastrectomy for adenocarcinoma from 2000 to 2016 in three Institutions were selected using propensity scores and categorized according to lymphadenectomy. Statistical analyses were performed for the nodal harvest (LNH) and survival.