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Authors: Yoshinori Arai, Tomohiro Kato, Seiji Arihiro, Munenori Itagaki, Nobuhiko Komoike, Isao Odagi, Masayuki Saruta, Mika Matsuoka, Takeshi Suzuki and Hisao Tajiri

Yoshinori Arai

Division of Gastroenterology and Hepatology; Department of Internal Medicine; The Jikei University School of Medicine; Tokyo, Japan

Tomohiro Kato

Corresponding author: tkato@jikei.ac.jp
Department of Endoscopy; The Jikei University School of Medicine; Tokyo, Japan

Seiji Arihiro

Division of Gastroenterology and Hepatology; Department of Internal Medicine; The Jikei University School of Medicine; Tokyo, Japan

Munenori Itagaki

Division of Gastroenterology and Hepatology; Department of Internal Medicine; The Jikei University School of Medicine; Tokyo, Japan

Nobuhiko Komoike

Division of Gastroenterology and Hepatology; Department of Internal Medicine; The Jikei University School of Medicine; Tokyo, Japan

Isao Odagi

Division of Gastroenterology and Hepatology; Department of Internal Medicine; The Jikei University School of Medicine; Tokyo, Japan

Masayuki Saruta

Division of Gastroenterology and Hepatology; Department of Internal Medicine; The Jikei University School of Medicine; Tokyo, Japan

Mika Matsuoka

Division of Gastroenterology and Hepatology; Department of Internal Medicine; The Jikei University School of Medicine; Tokyo, Japan

Takeshi Suzuki

Department of Endoscopy; The Jikei University School of Medicine; Tokyo, Japan

Hisao Tajiri

Division of Gastroenterology and Hepatology; Department of Internal Medicine; The Jikei University School of Medicine; Tokyo, Japan; Department of Endoscopy; The Jikei University School of Medicine; Tokyo, Japan

Abstract:
Balloon enteroscopy (BE) was originally developed for observation of the deep small intestine, and has recently been utilized for difficult cases of total colonoscopy due to reasons such as adhesions and elongation. In this report, we present our experience with single balloon enteroscopy (SBE) to facilitate successful colonoscopy when standard techniques failed. In two cases, early colon cancers were detected in the cecum by SBE and were removed endoscopically or surgically. A third case is discussed in which SBE was attempted but was ultimately not successful. In that case, total colonoscopy was not performed because of looping in the sigmoid and transverse colon. A fourth case in which SBE was performed in order to remove colonic gas in a patient with megacolon. In that case, total colonoscopy could not be completed because the SBE balloon could not “grab” the dilated colon and therefore could not advance. SBE is a useful adjunct to standard colonoscopy in challenging cases, but has limitations and does not always ensure success.

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