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Characteristics of lymph node metastasis and evaluating the efficacy of endoscopic submucosal dissection in early gastric cancer / 北京大学学报(医学版)
Journal of Peking University(Health Sciences) ; (6): 1093-1097, 2020.
Article in Chinese | WPRIM | ID: wpr-942122
ABSTRACT
OBJECTIVE@#To investigate the correlation between clinicopathological features and lymph node metastasis, and to evaluate the feasibility and efficacy of endoscopic submucosal dissection (ESD) in early gastric cancer (EGC) by comparing with surgery treatment.@*METHODS@#The clinicopathological data of 320 patients with EGC who were treated in Peking University First Hospital between January 2010 and December 2017 were retrospectively reviewed, in which there were 198 cases of surgical procedure and 122 cases of ESD. Characteristics of lymph node metastasis in EGC were analyzed, and lymph node metastasis of EGC with ESD absolute and expanded indications were summarized. The long-term efficacy of ESD and surgical treatment of EGC were compared to evaluate the rationality of absolute and expanded indications of ESD.@*RESULTS@#Lymph node metastasis was detected in 22 (11.1%) of 198 patients. Univariate analysis showed a positive relationship between tumor size (χ2=5.525, P=0.019), depth of invasion(χ2=8.235, P=0.004), histological type (χ2=6.323, P=0.012), lymphovascular invasion (χ2=12.273, P < 0.001) and lymph node metastasis in EGC. Multivariate analysis revealed that depth of invasion(Wald=7.575, P=0.006) and histological type (Wald=6.317, P=0.012) were independent relative factors of lymph node metastasis in EGC. The lymph node metastasis rates of the patients with absolute and expanded ESD indications were both 0%. The 5-year survival rates of the patients who met ESD absolute indication receiving surgery treatment and ESD were 97.6% and 97.9% respectively, and the difference between the two groups was not statistically significant(χ2=0.014, P=0.907).The 5-year survival rates of the patients who met ESD expanded indication receiving surgery treatment and ESD were 96.5% and 91.7% respectively, the difference between the two groups was not statistically significant(χ2=1.061, P=0.303).@*CONCLUSION@#Lymph node metastasis in EGC is mainly correlated with depth of invasion and histological type. Our data indicate that ESD procedure for EGC is comparable to surgery in terms of long-term efficacy in both absolute and expanded indications. However, some studies of a large sample size are still needed for more confirmation.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Stomach Neoplasms / Retrospective Studies / Endoscopic Mucosal Resection / Gastrectomy / Gastric Mucosa / Lymph Node Excision / Lymphatic Metastasis Type of study: Observational study Limits: Humans Language: Chinese Journal: Journal of Peking University(Health Sciences) Year: 2020 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Stomach Neoplasms / Retrospective Studies / Endoscopic Mucosal Resection / Gastrectomy / Gastric Mucosa / Lymph Node Excision / Lymphatic Metastasis Type of study: Observational study Limits: Humans Language: Chinese Journal: Journal of Peking University(Health Sciences) Year: 2020 Type: Article