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A propensity score–matched case–control comparative study of laparoscopic and open extended (D2) lymph node dissection for distal gastric carcinoma

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Abstract

Background

Technical proficiency at laparoscopic D2 lymph node dissection (LND) is essential for extending the use of laparoscopic surgery beyond the treatment of early gastric cancer (EGC). The aim of this study was to evaluate the technical and oncological feasibility of laparoscopic distal gastrectomy (LDG) with D2 LND for distal gastric cancer.

Methods

Of 922 patients who underwent open or LDG with D2 LND for gastric carcinoma, 133 treated by LDG and 133 treated by open distal gastrectomy (ODG) were selected using the propensity score matching method. The short-term surgical outcomes and long-term survivals of these matched groups were compared.

Results

The two study groups were well matched with respect to age, sex, body mass index, comorbidity, ASA score, abdominal operation history, and tumor stage. The LDG group had a significantly longer mean operating time (227 vs. 161 min, p < 0.001) but showed significantly less intraoperative blood loss (149 vs. 189 ml, p = 0.007). Total numbers of collected lymph nodes were similar in the two groups. Postoperatively, no significant intergroup differences were found for hospital stay, morbidity, or mortality. Furthermore, overall survivals were similar in the two groups (p = 0.621). Multivariate analysis showed that male gender, age ≥70 years, and intraoperative blood loss of ≥200 ml were independent risk factors of postoperative morbidity.

Conclusions

Laparoscopic D2 LND for distal gastric cancer is technically safe and feasible compared with ODG. A prospective randomized trial is warranted to evaluate long-term oncological outcomes in advanced gastric carcinoma.

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Disclosures

X.-F. Zhao, O. Jeong, M. R. Jung, S. Y. Ryu, and Y. K. Park have no conflicts of interest or financial ties to disclose.

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Authors and Affiliations

  1. Division of Gastroenterologic Surgery, Department of Surgery, College of Medicine, Chonnam National University, 160, Ilsim-ri, Hwasun-eup, Hwasun-gun, Jeollanam-do, 519-809, South Korea

    Xue-Feng Zhao, Oh Jeong, Mi Ran Jung, Seong Yeop Ryu & Young Kyu Park

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  1. Xue-Feng Zhao
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  2. Oh Jeong
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  3. Mi Ran Jung
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Correspondence to Oh Jeong.

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Zhao, XF., Jeong, O., Jung, M.R. et al. A propensity score–matched case–control comparative study of laparoscopic and open extended (D2) lymph node dissection for distal gastric carcinoma. Surg Endosc 27, 2792–2800 (2013). https://doi.org/10.1007/s00464-013-2809-7

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  • DOI: https://doi.org/10.1007/s00464-013-2809-7

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