臨牀消化器内科 Vol.31 No.4(5)


特集名 消化管憩室の最近の話題
題名 小腸憩室の診断と治療
発刊年月 2016年 04月
著者 江原 彰仁 日本医科大学消化器内科学
著者 三井 啓吾 日本医科大学消化器内科学
著者 田中 周 日本医科大学消化器内科学
著者 辰口 篤志 日本医科大学消化器内科学
著者 藤森 俊二 日本医科大学消化器内科学
著者 岩切 勝彦 日本医科大学消化器内科学
【 要旨 】 小腸憩室はメッケル憩室を除くと非常にまれであり,多くは固有筋層をもたない後天性憩室であり,腸間膜付着側に存在する.回腸よりも空腸に多く,好発年齢は高齢者である.無症状のまま経過することが多いが,出血,憩室炎,穿孔,腹膜炎,腸閉塞などの非特異的な腹部症状を引き起こすことがある.検査は症状に応じて小腸造影,CT,血管造影,カプセル内視鏡,バルーン内視鏡などを適切に選択あるいは組み合わせることが重要である.出血に対してはバルーン内視鏡による内視鏡的止血術や血管造影による塞栓術で手術を回避することも可能である.また憩室炎には抗菌薬投与による保存的治療が選択されるが,穿孔による腹膜炎や腸閉塞などは外科的治療の適応である.
Theme Topics of the Gastrointestinal Diverticula
Title Diverticular Disease of the Small Intestine
Author Akihito Ehara Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine
Author Keigo Mitsui Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine
Author Shu Tanaka Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine
Author Atsushi Tatsuguchi Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine
Author Shunji Fujimori Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine
Author Katsuhiko Iwakiri Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine
[ Summary ] Diverticular disease of the small intestine, except for Meckel's diverticulum, is extremely rare. Most cases are acquired diverticula, which lack muscularis propria, and occur most commonly in elderly persons. They are more frequent in the jejunum than in the ileum and emerge on the mesenteric side. They are usually asymptomatic but sometimes cause nonspecific abdominal complications such as bleeding, diverticulitis, perforation, peritonitis, and intestinal obstruction. Appropriate diagnostic imaging modalities should be determined according to the symptom, including radiological enteroclysis, computed tomography (CT), angiography, capsule endoscopy, and balloon endoscopy. For example, surgery can be avoided in case of bleeding by using selective transcatheter embolization or balloon endoscopic procedure for establishing hemostasis. Diverticulitis is successfully treated in most patients with conservative management, although surgery is indicated in cases with perforation, peritonitis, and intestinal obstruction.
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