臨牀消化器内科 Vol.30 No.12(1)


特集名 LECS(laparoscopy and endoscopy cooperative surgery)の新たな展開
題名 胃局所切除の概念・分類・適応疾患
発刊年月 2015年 11月
著者 愛甲 丞 東京大学大学院消化管外科
著者 瀬戸 泰之 東京大学大学院消化管外科
【 要旨 】 これまで胃粘膜下腫瘍に対する胃局所切除術として,腹腔鏡下に楔状切除が行われることが多かったが,LECS(laparoscopy and endoscopy cooperative surgery)の報告以降,腹腔鏡・内視鏡を併用した新しい胃局所切除法として,NEWS,CLEAN‒NETなどが開発・報告されている.おもな適応はGISTなどの胃粘膜下腫瘍であるが,早期胃癌の適応へ向けた手技開発も期待されている.胃局所切除は腫瘍の性状に合わせた非定形的な手術となるため,それぞれの術式の長所短所を十分に理解し,症例ごとに適切な術式を選択することが重要であり,実践のためには内科・外科の協働が必要不可欠である.
Theme New Developments in Laparoscopy and Endoscopy Cooperative Surgery (LECS)
Title Indication of Laparoscopic and Endoscopic Local Resection of the Stomach
Author Susumu Aikou Department of Gastrointestinal Surgery, The University of Tokyo
Author Yasuyuki Seto Department of Gastrointestinal Surgery, The University of Tokyo
[ Summary ] Laparoscopic wedge resections were used for local resection of gastric submucosal tumors. Recently, laparoscopy and endoscopy cooperative surgery (LECS) have been used for submucosal tumor resection regardless of tumor location or size. LECS procedures can be performed safely with reasonable operation times and adequate cut lines. Non‒exposed endoscopic wall‒inversion (NEWS) and CLEAN‒NET have been used as new procedures. They were carried out using laparoscopy and endoscopy without perforating the stomach to avoid tumor seeding. These LECS procedures are applicable for submucosal tumor resection such as gastrointestinal stromal tumors (GIST) and may be applicable for gastric cancer treatment. We must select the most appropriate procedure in terms of tumor characteristics, including location, shape or size. The cooperation of surgeons and endoscopists is required for implementation and development of LECS procedures.
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