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Clinicopathological Features, Progress, and Prognosis in Cases of Local Recurrence and Metastatic Recurrence Following Endoscopic Submucosal Dissection for Gastric Cancer : A Multi-institutional Joint Study Satoshi Tanabe 1 , Kenji Ishido 2 , Takayuki Matsumoto 3 , Takashi Kosaka 3 , Ichiro Oda 4 , Haruhisa Suzuki 4 , Junko Fujisaki 5 , Hiroyuki Ono 6 , Noboru Kawata 6 , Tsuneo Oyama 7 , Akiko Takahashi 7 , Hisashi Doyama 8 , Masaaki Kobayashi 9 , Noriya Uedo 10 , Kenta Hamada 10 , Takashi Toyonaga 11 , Fumiaki Kawara 11 , Shinji Tanaka 12 , Yoshikazu Yoshifuku 12 1Research and Development Center for New Medical Frontiers, Kitasato University, Sagamihara, Japan 2Department of Gastroenterology, Kitasato University, Sagamihara, Japan 3Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Morioka, Japan 4Endoscopy Division, National Cancer Center Hospital, Tokyo 5Department of Gastroenterology, Cancer Institute Hospital of JFCR, Tokyo 6Department of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan 7Department of Endoscopy, Saku Central Hospital Advanced Care Center, Saku, Japan 8Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Kanazawa, Japan 9Department of Endoscopy, Niigata University Medical and Dental Hospital, Niigata, Japan 10Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan 11Department of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan 12Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan Keyword: 早期胃癌 , ガイドライン適応病変 , 適応拡大病変 , ESD 予後 pp.1601-1608
Published Date 2014/10/25
DOI https://doi.org/10.11477/mf.1403200030
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 In this study, we investigated patients with early gastric cancer who underwent ESD(endoscopic submucosal dissection)at 11 institutions between January 2003 and December 2010. Subjects were 6,456 patients(7,979 lesions)who met the absolute indication and 4,202 patients(5,781 lesions)who met the expanded indication for ESD. Of these, clinicopathological features, progress, and prognosis were investigated in those patients in whom local recurrence or metastatic recurrence was identified as of March 31, 2014. Local recurrence was identified in 14 patients(0.22%)who met the absolute indication and in 53 patients(1.26%)who met the expanded indication, indicating a significantly higher rate of recurrence in patients meeting the expanded indication(p<0.05). Most absolute indication lesions were flat and depressed in the gastric corpus, and expanded indication lesions included 9 cases(17%)of undifferentiated mixed type. Non-curative resection was performed in 64% of patients meeting the absolute indication and 75% of patients meeting the expanded indication, indicating that a higher percentage of non-curative resections were performed in patients meeting the expanded indication. Adjuvant therapy in cases of local recurrence included 12 cases of endoscopic treatment and 1 case of surgical treatment among patients meeting the absolute indication and 46 cases of endoscopic treatment and 5 cases of surgical treatment among patients meeting the expanded indication. In both groups, endoscopic treatment was chosen in 90% of cases, and most of these were eligible for ESD. No patients meeting the absolute indication had metastatic recurrence, and although there were 6 cases(0.14%)of metastatic recurrence among the patients meeting the expanded indication, all 6 of these patients underwent curative resection. There were 3 cases each of lesions with invasion depths of M and SM1, and excluding 1 case in which the lesion diameter was 55mm, all lesions were 21mm or less. The histological type of half of the lesions was undifferentiated mixed type. Although very rare, it is important to provide preoperative explanations of the possibility of metastatic recurrence and conduct follow-up for patients with lesions meeting the expanded indication. Treatments for mixed-type lesions will need to be investigated in a future study.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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