4.6 Article

Clinical and endoscopic features of metachronous gastric cancer with possible lymph node metastasis after endoscopic submucosal dissection and Helicobacter pylori eradication

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GASTRIC CANCER
卷 26, 期 5, 页码 743-754

出版社

SPRINGER
DOI: 10.1007/s10120-023-01394-1

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Endoscopic submucosal dissection; Gastric cancer; Helicobacter pylori eradication; Lymph node metastasis; Metachronous cancer

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This study explores the features of patients with metachronous gastric cancer (MGC) with possible lymph node metastasis (LNM) after endoscopic submucosal dissection (ESD) and Helicobacter pylori (H. pylori) eradication. It is found that MGCs are more common in the posterior wall of the stomach and lower body mass index (BMI) may be associated with the development of MGCs with possible LNM.
BackgroundSeveral studies have reported the metachronous gastric cancers (MGCs) with possible lymph node metastasis (LNM) after endoscopic submucosal dissection (ESD) and Helicobacter pylori (H. pylori) eradication in which a curative ESD had not been achieved. There have been no published reports of evaluations of the features of patients with MGC with possible LNM after ESD and H. pylori eradication.MethodsWe identified 264 patients with 369 MGCs after H. pylori eradication among the 4354 patients with 5059 early gastric cancers (EGCs) who underwent ESD between 1999 and 2017 and divided them into two groups: patients with MGCs with possible LNM (Group I) and patients with MGCs undergone curative ESD (Group II). We retrospectively compared the features of patients with MGCs and patients with EGCs at index ESD in the two groups.ResultGroup I consisted of 20 patients with 21 MGCs, and Group II consisted of 244 patients with 348 MGCs. Group I lesions were significantly more common in the posterior wall than in the lesser curvature (odds ratio [OR] = 3.97; 95% confidence intervals [CI] 1.20-13.10). Development of Group I was significantly more common in patients with a body mass index (BMI) < 19.0 kg/m(2) than in patients with a BMI >= 19.0 kg/m(2) at index ESD (OR = 4.44; 95% CI 1.30-15.20).ConclusionsDuring surveillance endoscopy after gastric ESD and H. pylori eradication, the posterior wall should be carefully examined to detect MGCs early. Lower BMI may be associated with the development of MGCs with possible LNM.

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