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  • Title: [Impact of additional gastrectomy after endoscopic submucosal dissection on the prognosis of early gastric cancer].
    Author: Zhu J, Shi Q, Zhou P, Chen T, Xu J, Liu J, Yao L, Xu M, Zhang Y.
    Journal: Zhonghua Wei Chang Wai Ke Za Zhi; 2016 Aug 25; 19(8):912-6. PubMed ID: 27545467.
    Abstract:
    OBJECTIVE: To investigate the impact of additional gastrectomy after endoscopic submucosal dissection(ESD) on the prognosis of early gastric cancer. METHODS: Clinical data of 107 early gastric cancer patients undergoing additional gastrectomy after ESD (research group, n=44) or radical surgery (control group, n=63) from January 2008 to December 2014 in Zhongshan Hospital were retrospectively analyzed. The reasons for additional gastrectomy after ESD included positive resection margin (n=10), lymphovascular invasion (n=5), well-differentiated mucosal tumor with a diameter >3 cm (n=10), poor-differentiated mucosal tumor with a diameter >2 cm (n=4), submucosal tumor(sm1) with a diameter >3 cm (n=10), and submucosal tumor(sm2) (n=9). Operation time, length of stay, lymph node metastasis, tumor recurrence and disease-free survival rate were compared between two groups. RESULTS: Baseline data of two groups were not significantly different (all P>0.05). After evaluation, absolute and relative indications were identified in 19 cases (43.2%) and 25 cases (56.8%) of research group, and in 28 cases (44.4%) and 35 cases(55.6%) of control group without significant difference (P=0.897). Lymph node metastasis occurred in 6 patients (4.5%) after surgery in research group and 6.3% in control group (P=0.690). Operation time was (218.5±74.3) minutes in research group and (219.8±81.8) minutes in control group (P=0.932). Length of stay was (10.0±12.3) days in research group and (10.8±9.9) days in control group (P=0.687). Follow-up time was (35.5±15.0) months in research group and (29.5±18.1) months in control group (P=0.072). Tumor recurrence rate was 4.5% in research group and 9.5% in control group (χ(2)=0.928, P=0.229). Mortality was 4.5% in research group and 7.9% in control group (χ(2)=0.487, P=0.485). Besides, no significant differences of operation mode (P=0.164), lymphatic clearance mode (P=0.330), number of harvested lymph node (P=0.467), morbidity of postoperative infection or fever (P=0.923) were found. Three-year tumor-free survival rate was 95.5% and 89.2% in research and control group respectively without significant differences (P=0.571). CONCLUSION: Additional gastrectomy after endoscopic submucosal dissection has no negative influence on the prognosis of patients with early gastric cancer, whose efficacy is similar to simple radical gastrectomy.
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