臨牀消化器内科 Vol.19 No.10(2-1)


特集名 上部消化管での内視鏡的治療の現況と問題点
題名 上部消化管出血に対する内視鏡的治療 (1) 静脈瘤 a. 食道・胃静脈瘤に対する内視鏡的治療難治例の克服
発刊年月 2004年 09月
著者 宮本 安尚 久留米大学医学部第二内科 / 消化器病センター
著者 於保 和彦 久留米大学医学部第二内科 / 消化器病センター
著者 森田 幸彦 久留米大学医学部第二内科 / 消化器病センター
著者 坂本 慶博 久留米大学医学部第二内科 / 消化器病センター
著者 熊本 正史 久留米大学医学部第二内科 / 消化器病センター
著者 豊永 純 久留米大学医学部第二内科 / 消化器病センター
【 要旨 】 以前は難治性とされていたpipe line varix (巨木型食道静脈瘤) や胃穹窿部静脈瘤も,手技の工夫や組織接着剤の導入により,安全・確実な内視鏡治療が可能となった.現在の難治性静脈瘤のkey wordsは,食道壁外シャントと動脈血流入ともいえる.巨大な食道壁外シャントを有する食道静脈瘤は,硬化剤が大循環に流出し静脈瘤や供血路が閉塞されないばかりか治療に伴う偶発症を併発しやすい.また,胃噴門部F0,RC再発例は,硬化剤の血管内注入が困難で再発を繰り返すこともまれではなく,このような静脈瘤の再発機序の一つに胃上部局所循環亢進状態の増強も推測される.治療に際しては術前に血行動態の把握に努め,一つの治療法に固執することなく,IVRや外科手術を含めた病態に即した治療法の選択が必要である.
Theme Endoscopic Treatment of Upper Gastrointestine: Current Status and Clinical Problems
Title Progress in Endoscopic Management of Treatment Resistant Esophageal and Gastric Varices
Author Yasunao Miyamoto The Second Department of Internal Medicine, Division of Gastroenterology and Endoscopy, Kurume University, School of Medicine
Author Kazuhiko Oho The Second Department of Internal Medicine, Division of Gastroenterology and Endoscopy, Kurume University, School of Medicine
Author Yukihiko Morita The Second Department of Internal Medicine, Division of Gastroenterology and Endoscopy, Kurume University, School of Medicine
Author Yoshihiro Sakamoto The Second Department of Internal Medicine, Division of Gastroenterology and Endoscopy, Kurume University, School of Medicine
Author Masafumi Kumamoto The Second Department of Internal Medicine, Division of Gastroenterology and Endoscopy, Kurume University, School of Medicine
Author Atsushi Toyonaga The Second Department of Internal Medicine, Division of Gastroenterology and Endoscopy, Kurume University, School of Medicine
[ Summary ] Recently, pipe line varix (big tree-trunk type esophageal varix) and gastric fundal varices have been endoscopically treated safely and effectively with the development of new devices and skills, and with the introduction of tissue adhesive agents. At present, the key words for treatment-resistant varices are "extra-esophageal shunts" and "arterial blood inflow". When esophageal varices, with large extra-esophageal shunts, are treated with the endoscopic injection sclerotherapy, the sclerosant flows out into the systemic circulation. In addition, varices and inflowing veins cannot be obliterated. Sclerosant related complications, such as thrombosis, hepatic failure and renal dysfunction are likely to occur. Small cardiac varices with positive red color sign tend to recur repeatedly and may make it impossible to complete endoscopic treatment, because of difficulties with in intravariceal injection. It is suggested that a local hyperdynamic state in the upper gastric region may play some role in the recurrence of these varices. It is necessary to know the hemodynamic state of each case before treatment and to select the optimal treatment modality, including interventional radiology and/or surgical operations, depending on which hemodynamic abnormalities are observed.
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