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◆要旨:ESDは分化型粘膜癌に対する標準治療となった.現在では病巣の部位や広がりによる制限はほぼ克服され,高度瘢痕症例が最後の難関となっている.そのようなESD適応困難の高度瘢痕症例に対し,筆者らは腹腔鏡と内視鏡治療を併用した胃の内視鏡的全層切除術を行っている.これまでにもHikiら1)やAbeら2)によって腹腔鏡と内視鏡を併用した胃の全層切除術の報告がされてきたが,胃内容を腹腔内に開放するという問題(腹膜播種のリスクを完全に否定できない)は未解決のままであった.筆者らは胃内容を腹腔内に開放しない方法(CLEAN-NET“清潔な網”)を考案し,現在までに17例施行した.この手技の概要と治療成績について報告する.
Recently, ESD(Endoscopic submucosal dissection)has become widely accepted as a standard endoscopic procedure for early stage gastric cancer. But, we often experience difficult cases due to severe scar scarring in the lesion. For such difficult cases, we conducted laparoscopic local resection(full-thickness resection)assisted by endoscopy. In the past, Hiki et al. and Abe et al. reported cases of laparoscopic local resection assisted by endoscopy, but there remained a problem that those procedures might cause peritoneal dissemination by exposing contents of the stomach into the abdominal cavity. We developed a new method which could be done without exposing the gastric content into the abdominal cavity and call it CLEAN-NET' (Combination of Laparoscopic and Endoscopic Approaches to Neoplasia with Non-Exposure Technique). We introduce a summary of the procedure and present the result of 17 cases that we experienced.
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