臨牀消化器内科 Vol.30 No.11(1-1)


特集名 消化器癌予防 up‒to‒date
題名 食道癌 (1) 逆流性食道炎とBarrett食道癌
発刊年月 2015年 10月
著者 天野 祐二 国際医療福祉大学化学療法研究所附属病院内視鏡部
著者 安積 貴年 国際医療福祉大学化学療法研究所附属病院内視鏡部
著者 坪井 優 国際医療福祉大学化学療法研究所附属病院消化器内科
著者 本告 成淳 国際医療福祉大学化学療法研究所附属病院消化器内科
【 要旨 】 近年,逆流性食道炎の増加,H. pylori感染率の低下や肥満の増加を背景に,本邦でも胃食道逆流症およびBarrett食道症例が増え,その結果として逆流性食道炎~Barrett食道~Barrett食道腺癌へのsequenceが存在感を増しつつある.したがって,本邦のBarrett食道癌の特性を踏まえた内視鏡診療,chemopreventionを含めたBarrett食道症例のマネージメント,あるいは,LSBE,高齢者,男性,肥満,喫煙,逆流性食道炎,H.pylori非感染,大腸腫瘍の存在などの発癌リスク因子を加味した効率の良いサーベイランス法などの確立を目指して検討することは,決して時期尚早ではない.
Theme Up‒to‒date of the Protection of Gastroenterological Cancers
Title Reflux Esophagitis and Esophageal Adenocarcinoma
Author Yuji Amano Division of Endoscopy, Kaken Hospital, International University of Health and Welfare
Author Takane Azumi Division of Endoscopy, Kaken Hospital, International University of Health and Welfare
Author Masaru Tsuboi Department of Gastroenterology, Kaken Hospital, International University of Health and Welfare
Author Shigeatsu Motoori Department of Gastroenterology, Kaken Hospital, International University of Health and Welfare
[ Summary ] The incidence of adenocarcinoma derived from Barrett's esophagus has been steadily increasing over the past several decades in Western countries. On the other hand, in Japan, most cases of esophageal cancer are squamous cell carcinomas, not adenocarcinomas. However, the recent increase in the number of cases of Barrett's esophagus with subsequent esophageal adenocarcinoma has become worrisome in Japan, since the number of patients with gastro‒esophageal reflux disease is markedly increasing. Therefore, a strategy for the clinical management of Barrett's esophagus in Japanese patients has gained interest. The endoscopic diagnosis of esophageal adenocarcinoma requires skillful and effective maneuvers including the use of image‒enhanced endoscopy to diagnose at an earlier stage. In order to avoid Barrett's carcinogenesis, some procedures such as chemoprevention by the administration of non‒steroidal anti‒inflammatory drugs (NSAIDs), aspirin, proton‒pump inhibitors (PPI), and statins, and endoscopic surgery including endoscopic mucosal resection and coagulation for patients with Barrett's esophagus may become necessary in the near future. However, there are many issues relating to the pathophysiology, epidemiology, and surveillance methods of Barrett’s esophagus in Japanese patients that must be resolved as soon as possible.
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