title: A Case of Blind Loop Syndrome Caused by Infection with Giardia duodenalis Diagnosed with Double Balloon Enteroscopy.
abstract: A 75-year-old man who had undergone partial gastrectomy was referred to our hospital due to worsening leg edema, loose stools and malnutrition. Double balloon enteroscopy followed by insertion of an indwelling ileus tube was performed to investigate the microbial flora and for washing inside the blind loop. Trophozoites of Giardia were detected in the sampled fluid from the blind loop and DNA analysis disclosed an assemblage of genotype A-II of Giardia duodenalis. Treatment with oral metronidazole was effective. This case emphasizes the importance of a correct diagnosis when treating patients with blind loop syndrome in the digestive tract.
authors.affiliation: Department of Gastroenterology and Nephrology (K1), Graduate School of Medicine, Chiba University, Chiba, Japan.
authors.forename: Tomoo
authors.initials: T
authors.lastname: Nakagawa
authors.affiliation: Center for Environment, Health and Field Sciences, Chiba University, Chiba, Japan.
authors.forename: Tatsuro
authors.initials: T
authors.lastname: Katsuno
authors.affiliation: Department of Gastroenterology and Nephrology (K1), Graduate School of Medicine, Chiba University, Chiba, Japan.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Mandai
authors.affiliation: Department of Gastroenterology and Nephrology (K1), Graduate School of Medicine, Chiba University, Chiba, Japan.
authors.forename: Masaya
authors.initials: M
authors.lastname: Saito
authors.affiliation: Department of Gastroenterology and Nephrology (K1), Graduate School of Medicine, Chiba University, Chiba, Japan.
authors.forename: Sayuri
authors.initials: S
authors.lastname: Yoshihama
authors.affiliation: Department of Gastroenterology and Nephrology (K1), Graduate School of Medicine, Chiba University, Chiba, Japan.
authors.forename: Keiko
authors.initials: K
authors.lastname: Saito
authors.affiliation: Department of Gastroenterology and Nephrology (K1), Graduate School of Medicine, Chiba University, Chiba, Japan.
authors.forename: Shoko
authors.initials: S
authors.lastname: Minemura
authors.affiliation: Department of Gastroenterology and Nephrology (K1), Graduate School of Medicine, Chiba University, Chiba, Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Maruoka
authors.affiliation: Department of Gastroenterology and Nephrology (K1), Graduate School of Medicine, Chiba University, Chiba, Japan.
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Matsumura
authors.affiliation: Department of Gastroenterology and Nephrology (K1), Graduate School of Medicine, Chiba University, Chiba, Japan.
authors.forename: Makoto
authors.initials: M
authors.lastname: Arai
authors.affiliation: Department of Gastroenterology and Nephrology (K1), Graduate School of Medicine, Chiba University, Chiba, Japan.
authors.forename: Osamu
authors.initials: O
authors.lastname: Yokosuka
keywords: Blind loop syndrome; Double balloon enteroscopy; Giardia duodenalis; Polymerase chain reaction-restriction fragment length polymorphism