Comparison of the long-term outcomes of robotic radical gastrectomy for gastric cancer and conventional laparoscopic approach: a single institutional retrospective cohort study

Masaya Nakauchi, Koichi Suda, Shibasaki Susumu, Shinichi Kadoya, Kazuki Inaba, Yoshinori Ishida, Ichiro Uyama

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Background: Robotic gastrectomy (RG) for gastric cancer (GC) has been increasingly performed over the last decade. The technical feasibility and safety of RG for GC, predominantly early GC, have previously been reported; however, few studies have evaluated the oncological outcomes. This study aimed to determine the long-term outcomes of RG for GC compared with those of conventional laparoscopic gastrectomy (LG). Methods: Of the 521 consecutive patients with GC who underwent radical gastrectomy at our institution between 2009 and 2012, 84 consecutive patients who underwent RG and 437 patients who received LG were enrolled in this study. Long-term outcomes including the 3-year overall survival (3yOS) and 3-year recurrence-free survival rates (3yRFS) were examined retrospectively. Results: In the RG group, the 3yOS rates stratified by pathological stage according to the Japanese classification of gastric carcinoma (IA, IB, II, and III) were 94.7, 90.9, 89.5, and 62.5 %, respectively. No differences in 3yOS (RG, 86.9 % vs. LG, 88.8 %; p = 0.636) or 3yRFS (RG, 86.9 % vs. LG, 86.3 %; p = 0.905) were observed between the groups. 3yOS was strongly associated with cancer recurrence within 3 years (p < 0.001), while 3yRFS was associated with tumor size ≥ 30 mm (p < 0.001), clinical stage ≥ IB (p < 0.001), estimated blood loss ≥ 50 mL (p = 0.033), and postoperative pancreatic fistula CD grade ≥ III) (p = 0.035). Conclusions: RG for GC was feasible and safe from the oncological point of view in a cohort including a considerable number of patients with advanced GC.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalSurgical Endoscopy and Other Interventional Techniques
DOIs
Publication statusAccepted/In press - 2016 Apr 29
Externally publishedYes

Fingerprint

Robotics
Gastrectomy
Stomach Neoplasms
Cohort Studies
Retrospective Studies
Survival Rate
Recurrence
Survival
Pancreatic Fistula
Neoplasms
Stomach

Keywords

  • Gastric cancer
  • Long-term outcomes
  • Pancreatic fistula
  • Retrospective cohort study
  • Robotic gastrectomy

ASJC Scopus subject areas

  • Surgery

Cite this

Comparison of the long-term outcomes of robotic radical gastrectomy for gastric cancer and conventional laparoscopic approach : a single institutional retrospective cohort study. / Nakauchi, Masaya; Suda, Koichi; Susumu, Shibasaki; Kadoya, Shinichi; Inaba, Kazuki; Ishida, Yoshinori; Uyama, Ichiro.

In: Surgical Endoscopy and Other Interventional Techniques, 29.04.2016, p. 1-9.

Research output: Contribution to journalArticle

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title = "Comparison of the long-term outcomes of robotic radical gastrectomy for gastric cancer and conventional laparoscopic approach: a single institutional retrospective cohort study",
abstract = "Background: Robotic gastrectomy (RG) for gastric cancer (GC) has been increasingly performed over the last decade. The technical feasibility and safety of RG for GC, predominantly early GC, have previously been reported; however, few studies have evaluated the oncological outcomes. This study aimed to determine the long-term outcomes of RG for GC compared with those of conventional laparoscopic gastrectomy (LG). Methods: Of the 521 consecutive patients with GC who underwent radical gastrectomy at our institution between 2009 and 2012, 84 consecutive patients who underwent RG and 437 patients who received LG were enrolled in this study. Long-term outcomes including the 3-year overall survival (3yOS) and 3-year recurrence-free survival rates (3yRFS) were examined retrospectively. Results: In the RG group, the 3yOS rates stratified by pathological stage according to the Japanese classification of gastric carcinoma (IA, IB, II, and III) were 94.7, 90.9, 89.5, and 62.5 {\%}, respectively. No differences in 3yOS (RG, 86.9 {\%} vs. LG, 88.8 {\%}; p = 0.636) or 3yRFS (RG, 86.9 {\%} vs. LG, 86.3 {\%}; p = 0.905) were observed between the groups. 3yOS was strongly associated with cancer recurrence within 3 years (p < 0.001), while 3yRFS was associated with tumor size ≥ 30 mm (p < 0.001), clinical stage ≥ IB (p < 0.001), estimated blood loss ≥ 50 mL (p = 0.033), and postoperative pancreatic fistula CD grade ≥ III) (p = 0.035). Conclusions: RG for GC was feasible and safe from the oncological point of view in a cohort including a considerable number of patients with advanced GC.",
keywords = "Gastric cancer, Long-term outcomes, Pancreatic fistula, Retrospective cohort study, Robotic gastrectomy",
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T1 - Comparison of the long-term outcomes of robotic radical gastrectomy for gastric cancer and conventional laparoscopic approach

T2 - a single institutional retrospective cohort study

AU - Nakauchi, Masaya

AU - Suda, Koichi

AU - Susumu, Shibasaki

AU - Kadoya, Shinichi

AU - Inaba, Kazuki

AU - Ishida, Yoshinori

AU - Uyama, Ichiro

PY - 2016/4/29

Y1 - 2016/4/29

N2 - Background: Robotic gastrectomy (RG) for gastric cancer (GC) has been increasingly performed over the last decade. The technical feasibility and safety of RG for GC, predominantly early GC, have previously been reported; however, few studies have evaluated the oncological outcomes. This study aimed to determine the long-term outcomes of RG for GC compared with those of conventional laparoscopic gastrectomy (LG). Methods: Of the 521 consecutive patients with GC who underwent radical gastrectomy at our institution between 2009 and 2012, 84 consecutive patients who underwent RG and 437 patients who received LG were enrolled in this study. Long-term outcomes including the 3-year overall survival (3yOS) and 3-year recurrence-free survival rates (3yRFS) were examined retrospectively. Results: In the RG group, the 3yOS rates stratified by pathological stage according to the Japanese classification of gastric carcinoma (IA, IB, II, and III) were 94.7, 90.9, 89.5, and 62.5 %, respectively. No differences in 3yOS (RG, 86.9 % vs. LG, 88.8 %; p = 0.636) or 3yRFS (RG, 86.9 % vs. LG, 86.3 %; p = 0.905) were observed between the groups. 3yOS was strongly associated with cancer recurrence within 3 years (p < 0.001), while 3yRFS was associated with tumor size ≥ 30 mm (p < 0.001), clinical stage ≥ IB (p < 0.001), estimated blood loss ≥ 50 mL (p = 0.033), and postoperative pancreatic fistula CD grade ≥ III) (p = 0.035). Conclusions: RG for GC was feasible and safe from the oncological point of view in a cohort including a considerable number of patients with advanced GC.

AB - Background: Robotic gastrectomy (RG) for gastric cancer (GC) has been increasingly performed over the last decade. The technical feasibility and safety of RG for GC, predominantly early GC, have previously been reported; however, few studies have evaluated the oncological outcomes. This study aimed to determine the long-term outcomes of RG for GC compared with those of conventional laparoscopic gastrectomy (LG). Methods: Of the 521 consecutive patients with GC who underwent radical gastrectomy at our institution between 2009 and 2012, 84 consecutive patients who underwent RG and 437 patients who received LG were enrolled in this study. Long-term outcomes including the 3-year overall survival (3yOS) and 3-year recurrence-free survival rates (3yRFS) were examined retrospectively. Results: In the RG group, the 3yOS rates stratified by pathological stage according to the Japanese classification of gastric carcinoma (IA, IB, II, and III) were 94.7, 90.9, 89.5, and 62.5 %, respectively. No differences in 3yOS (RG, 86.9 % vs. LG, 88.8 %; p = 0.636) or 3yRFS (RG, 86.9 % vs. LG, 86.3 %; p = 0.905) were observed between the groups. 3yOS was strongly associated with cancer recurrence within 3 years (p < 0.001), while 3yRFS was associated with tumor size ≥ 30 mm (p < 0.001), clinical stage ≥ IB (p < 0.001), estimated blood loss ≥ 50 mL (p = 0.033), and postoperative pancreatic fistula CD grade ≥ III) (p = 0.035). Conclusions: RG for GC was feasible and safe from the oncological point of view in a cohort including a considerable number of patients with advanced GC.

KW - Gastric cancer

KW - Long-term outcomes

KW - Pancreatic fistula

KW - Retrospective cohort study

KW - Robotic gastrectomy

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