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. 2021 Oct;73(5):1867-1877.
doi: 10.1007/s13304-021-01097-1. Epub 2021 Jun 4.

Laparoscopic gastrectomy for early and advanced gastric cancer in a western center: a propensity score-matched analysis

Marcus Fernando Kodama Pertille Ramos  1 , Marina Alessandra Pereira  2 , André Roncon Dias  2 , Ulysses Ribeiro Jr  2 , Bruno Zilberstein  2 , Sergio Carlos Nahas  2
Affiliations

Laparoscopic gastrectomy for early and advanced gastric cancer in a western center: a propensity score-matched analysis

Marcus Fernando Kodama Pertille Ramos et al. Updates Surg. 2021 Oct.

Abstract

The employment of laparoscopic gastrectomy (LG) in the management of gastric cancer (GC) is increasing. Despite recent results from randomized trials, its effectiveness and oncological results in different scenarios remain controversial, especially in western centers. The aim of this study was to compare the short-term outcomes and survival of LG with open gastrectomy (OG) for GC. We reviewed all GC patients who underwent curative gastrectomy from a prospective database. Propensity score-matched (PSM) analysis including 10 variables was conducted to reduce patient selection bias using a 1:1 case-control match. A total of 530 GC were eligible for inclusion (438 OG and 92 LG). Older age, lower hemoglobin levels, total gastrectomy, larger tumor size, greater depth of tumor invasion and advanced pTNM stage was more frequent in the OG group. After PMS analysis, 92 patients were matched in each group. All variables assigned in the score were well matched. LG group had a slightly higher number of retrieved lymph nodes (42.3 vs 37.6), however, without reaching statistical significance (p = 0.072). No differences were recorded about the frequency of major postoperative complications (POC) and mortality rates between OG and LG groups (12% vs 15.2%, p = 0.519, respectively). In survival analysis, after matching, there was no difference in survival between the two groups. Multivariate analysis showed that only ASA and pN stage were independent factor associated with survival after PSM. In conclusion, laparoscopic gastrectomy was a safe and effective surgical technique for gastric cancer, with short-term and oncological outcomes comparable to open surgery.

Keywords: Gastric cancer; Laparoscopic gastrectomy; Minimally invasive surgery; Open gastrectomy; Propensity score matching; Short-term outcomes.

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