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Short-Term Surgical Outcomes of Robotic Gastrectomy Compared to Open Gastrectomy for Patients with Gastric Cancer: a Randomized Trial

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Journal of Gastrointestinal Surgery Aims and scope

Abstract

Background

Robotic gastrectomy (RG) has been shown to be a safe and feasible method in gastric cancer (GC) treatment. However, most studies are in Eastern cohorts and there is great interest in knowing whether the method can be used routinely, especially in the West.

Objectives

The aim of this study was to compare the short-term surgical outcomes of D2-gastrectomy by RG versus open gastrectomy (OG).

Methods

Single-institution, open-label, non-inferiority, randomized clinical trial performed between 2015 and 2020. GC patients were randomized (1:1 allocation) to surgical treatment by RG or OG. Da Vinci Si platform was used. Inclusion criteria: gastric adenocarcinoma, stage cT2-4 cN0-1, potentially curative surgery, age 18–80 years, and ECOG performance status 0–1. Exclusion criteria: emergency surgery and previous gastric or major abdominal surgery. Primary endpoint was short-term surgical outcomes. The study is registered at clinicaltrials.gov (NCT02292914).

Results

Of 65 randomized patients, 5 were excluded (3 palliatives, 1 obstruction and emergency surgery, and 1 for material shortage). Consequently, 31 and 29 patients were included for final analysis in the OG and RG groups, respectively. No differences were observed between groups regarding age, sex, BMI, comorbidities, ASA, and frequency of total gastrectomy. RG had similar mean number of harvested lymph nodes (p = 0.805), longer surgical time (p < 0.001), and less bleeding (p < 0.001) compared to OG. Postoperative complications, length of hospital stay, and readmissions in 30 days were equivalent between OG and RG.

Conclusions

RG reduces operative bleeding by more than 50%. The short-term outcomes were non-inferior to OG, although surgical time was longer in RG.

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Acknowledgements

This research project was partially funded by the Ministry of Health’s Science and Technology Department. The authors thank them for their support in conducting this clinical trial in gastric cancer.

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Authors and Affiliations

Authors

Contributions

Ulysses Ribeiro Jr, André R. Dias, Marcus F.K.P. Ramos: study design, data retrieval, statistical analysis, draft of the manuscript. Osmar K. Yagi, Rodrigo Jose Oliveira, Marina A. Pereira: data retrieval, review of the manuscript. Ricardo Zugaib Abdalla, Bruno Zilberstein, Sérgio C. Nahas, Ivan Cecconello: critical analysis, review of the manuscript.

Corresponding author

Correspondence to Ulysses Ribeiro Jr.

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Oral presentation at Digestive Disease Week—Plenary Session, 2022, San Diego, USA.

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Ribeiro, U., Dias, A.R., Ramos, M.F.K.P. et al. Short-Term Surgical Outcomes of Robotic Gastrectomy Compared to Open Gastrectomy for Patients with Gastric Cancer: a Randomized Trial. J Gastrointest Surg 26, 2477–2485 (2022). https://doi.org/10.1007/s11605-022-05448-0

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