Surgical and oncological outcomes of robotic- versus laparoscopic-assisted distal gastrectomy with D2 lymphadenectomy for advanced gastric cancer: a propensity score‑matched analysis of 1164 patients

Abstract Background Studies on surgical outcomes after robotic surgery are increasing; however, long-term oncological results of studies comparing robotic-assisted distal gastrectomy (RADG) versus laparoscopic-assisted distal gastrectomy (LADG) for advanced gastric cancer (AGC) are still limited. Th...

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Main Authors: Gengmei Gao, Hualin Liao, Qunguang Jiang, Dongning Liu, Taiyuan Li
Format: Article
Language:English
Published: BMC 2022-09-01
Series:World Journal of Surgical Oncology
Subjects:
Online Access:https://doi.org/10.1186/s12957-022-02778-w
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author Gengmei Gao
Hualin Liao
Qunguang Jiang
Dongning Liu
Taiyuan Li
author_facet Gengmei Gao
Hualin Liao
Qunguang Jiang
Dongning Liu
Taiyuan Li
author_sort Gengmei Gao
collection DOAJ
description Abstract Background Studies on surgical outcomes after robotic surgery are increasing; however, long-term oncological results of studies comparing robotic-assisted distal gastrectomy (RADG) versus laparoscopic-assisted distal gastrectomy (LADG) for advanced gastric cancer (AGC) are still limited. This study aimed to assess the surgical and oncological outcomes of RADG and LADG for the treatment of AGC. Methods A total of 1164 consecutive AGC patients undergoing RADG or LADG were enrolled between January 2015 and October 2021. Propensity score-matched (PSM) analysis was performed to minimize selection bias. The perioperative and oncological outcomes between the two groups were compared. Results Patient’s characteristics were comparable between the two groups after PSM. RADG group represented a longer operative time (205.2 ± 43.1 vs 185.3 ± 42.8 min, P < 0.001), less operative blood loss (139.3 ± 97.8 vs 167.3 ± 134.2 ml, P < 0.001), greater retrieved lymph nodes (LNs) number (31.4 ± 12.1 vs 29.4 ± 12.3, P = 0.015), more retrieved LNs in the supra-pancreatic areas (13.4 ± 5.0 vs 11.4 ± 5.1, P < 0.001), and higher medical costs (13,608 ± 4326 vs 10,925 ± US $3925, P < 0.001) than LADG group. The overall complication rate was 13.7% in the RADG group and 16.6% in the LADG group, respectively; the difference was not significantly different (P = 0.242). In the subgroup analysis, the benefits of RADG were more evident in high BMI patients. Moreover, the 3-year overall survival (75.5% vs 73.1%, P = 0.471) and 3-year disease-free survival (72.9% vs 71.4%, P = 0.763) were similar between the two groups. Conclusion RADG appears to be a safe and feasible procedure and could serve as an alternative treatment for AGC in experienced centers.
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spelling doaj.art-10cd8029c71d4c7ebb577e84b0f1cf392022-12-22T04:28:58ZengBMCWorld Journal of Surgical Oncology1477-78192022-09-0120111210.1186/s12957-022-02778-wSurgical and oncological outcomes of robotic- versus laparoscopic-assisted distal gastrectomy with D2 lymphadenectomy for advanced gastric cancer: a propensity score‑matched analysis of 1164 patientsGengmei Gao0Hualin Liao1Qunguang Jiang2Dongning Liu3Taiyuan Li4The Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Jiangxi ProvinceThe Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Jiangxi ProvinceThe Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Jiangxi ProvinceThe Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Jiangxi ProvinceThe Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Jiangxi ProvinceAbstract Background Studies on surgical outcomes after robotic surgery are increasing; however, long-term oncological results of studies comparing robotic-assisted distal gastrectomy (RADG) versus laparoscopic-assisted distal gastrectomy (LADG) for advanced gastric cancer (AGC) are still limited. This study aimed to assess the surgical and oncological outcomes of RADG and LADG for the treatment of AGC. Methods A total of 1164 consecutive AGC patients undergoing RADG or LADG were enrolled between January 2015 and October 2021. Propensity score-matched (PSM) analysis was performed to minimize selection bias. The perioperative and oncological outcomes between the two groups were compared. Results Patient’s characteristics were comparable between the two groups after PSM. RADG group represented a longer operative time (205.2 ± 43.1 vs 185.3 ± 42.8 min, P < 0.001), less operative blood loss (139.3 ± 97.8 vs 167.3 ± 134.2 ml, P < 0.001), greater retrieved lymph nodes (LNs) number (31.4 ± 12.1 vs 29.4 ± 12.3, P = 0.015), more retrieved LNs in the supra-pancreatic areas (13.4 ± 5.0 vs 11.4 ± 5.1, P < 0.001), and higher medical costs (13,608 ± 4326 vs 10,925 ± US $3925, P < 0.001) than LADG group. The overall complication rate was 13.7% in the RADG group and 16.6% in the LADG group, respectively; the difference was not significantly different (P = 0.242). In the subgroup analysis, the benefits of RADG were more evident in high BMI patients. Moreover, the 3-year overall survival (75.5% vs 73.1%, P = 0.471) and 3-year disease-free survival (72.9% vs 71.4%, P = 0.763) were similar between the two groups. Conclusion RADG appears to be a safe and feasible procedure and could serve as an alternative treatment for AGC in experienced centers.https://doi.org/10.1186/s12957-022-02778-wAdvanced gastric cancerRobotic distal gastrectomyLaparoscopic distal gastrectomyOncologic outcome
spellingShingle Gengmei Gao
Hualin Liao
Qunguang Jiang
Dongning Liu
Taiyuan Li
Surgical and oncological outcomes of robotic- versus laparoscopic-assisted distal gastrectomy with D2 lymphadenectomy for advanced gastric cancer: a propensity score‑matched analysis of 1164 patients
World Journal of Surgical Oncology
Advanced gastric cancer
Robotic distal gastrectomy
Laparoscopic distal gastrectomy
Oncologic outcome
title Surgical and oncological outcomes of robotic- versus laparoscopic-assisted distal gastrectomy with D2 lymphadenectomy for advanced gastric cancer: a propensity score‑matched analysis of 1164 patients
title_full Surgical and oncological outcomes of robotic- versus laparoscopic-assisted distal gastrectomy with D2 lymphadenectomy for advanced gastric cancer: a propensity score‑matched analysis of 1164 patients
title_fullStr Surgical and oncological outcomes of robotic- versus laparoscopic-assisted distal gastrectomy with D2 lymphadenectomy for advanced gastric cancer: a propensity score‑matched analysis of 1164 patients
title_full_unstemmed Surgical and oncological outcomes of robotic- versus laparoscopic-assisted distal gastrectomy with D2 lymphadenectomy for advanced gastric cancer: a propensity score‑matched analysis of 1164 patients
title_short Surgical and oncological outcomes of robotic- versus laparoscopic-assisted distal gastrectomy with D2 lymphadenectomy for advanced gastric cancer: a propensity score‑matched analysis of 1164 patients
title_sort surgical and oncological outcomes of robotic versus laparoscopic assisted distal gastrectomy with d2 lymphadenectomy for advanced gastric cancer a propensity score matched analysis of 1164 patients
topic Advanced gastric cancer
Robotic distal gastrectomy
Laparoscopic distal gastrectomy
Oncologic outcome
url https://doi.org/10.1186/s12957-022-02778-w
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