• Surgical endoscopy · Mar 2017

    The effects of laparoscopic spleen-preserving splenic hilar lymphadenectomy on the surgical outcome of proximal gastric cancer: a propensity score-matched, case-control study.

    • Chang-Ming Huang, Tan Chen, Jian-Xian Lin, Qi-Yue Chen, Chao-Hui Zheng, Ping Li, Jian-Wei Xie, Jia-Bin Wang, Jun Lu, Long-Long Cao, Mi Lin, and Ru-Hong Tu.
    • Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001, Fujian Province, China. hcmlr2002@163.com.
    • Surg Endosc. 2017 Mar 1; 31 (3): 1383-1392.

    BackgroundThe evidence regarding the long-term results of laparoscopic spleen-preserving splenic hilar lymphadenectomy (LSPL) has only been rarely reported. The aim of this study was to investigate the feasibility and oncologic efficacy of LSPL for locally advanced proximal gastric cancer.MethodsFrom May 2007 to December 2012, we prospectively collected and retrospectively analyzed the data of 548 patients who underwent laparoscopic radical total gastrectomy due to proximal gastric cancer. The patients were grouped according to spleen-preserving splenic hilar lymphadenectomy (200 in the D2 group and 348 in the D2-group). The short- and long-term outcomes were compared between the two groups after propensity score matching.ResultsBefore matching, TNM stages were significantly different between the D2 and D2-groups. After propensity score matching, the two groups were well balanced in clinicopathologic characteristics. After matching, the time for lymph node dissection was longer in the D2 group, but a greater number of lymph nodes were dissected; the estimated blood loss, time to first flatus and duration of hospital stay were similar in the two groups. Furthermore, no significant differences in morbidity and mortality were found. Before matching, the 3-year overall survival (OS) and disease-free survival (DFS) rates of the D2 group were comparable with those of the D2-group (62.4 vs. 57.7 %, p = 0.076). After matching, the 3-year OS remained comparable, but the D2 group showed significantly longer 3-year DFS (61.6 vs. 53.7 %, p = 0.034). Stratified analysis showed that, in stage III patients, the D2 group had better 3-year DFS. Multivariate Cox regression showed that age (p = 0.003), operation (p = 0.001) and pN stage (p < 0.001) were independent prognostic factors.ConclusionsLSPL is a safe and feasible procedure, and patients with stage III proximal gastric cancer might obtain higher 3-year DFS rates.

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