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Article type: Research Article
Authors: Sakurai, Toshiyukia; | Fujimori, Shunjib | Hayashida, Maric | Hanada, Ryuzod | Akiyama, Junichia | Sakamoto, Choitsub
Affiliations: [a] Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, 1-21-1, Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan | [b] Department of Gastroenterology, Graduate School of Medicine, Nippon Medical School, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan | [c] The Third Department of Internal Medicine, Kyorin University School of Medicine, 6-20-2, Shinkawa, Mitaka City, Tokyo, 181-8611, Japan | [d] SOUEIKAI, Sumida Hospital, 1-29-1, Honjo, Sumida-ku, Tokyo, 130-0004, Japan
Correspondence: [*] Corresponding author: T. Sakurai, MD, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan. Tel.: 81 3 3202 7181; Fax: 81 3 3207 1038; E-mail: todi@chive.ocn.ne.jp
Abstract: BACKGROUND:There are no reports to prove the repeatability of gastric transit time (GTT) and small bowel transit time (SBTT) in capsule endoscopy (CE). OBJECTIVE:To clarify the repeatability and factors that affect GTT/SBTT in CE. METHODS:We analyzed the data of 150 healthy subjects from our previous randomized controlled trial that compared small intestinal injuries between two 14-day treatment groups: 1) celecoxib and 2) loxoprofen + lansoprazole. Correlation of GTT/SBTT with pre- and post-treatment CE was analyzed. In addition, the associations of pre-treatment CE SBTT with physical factors, post-treatment CE SBTT and the presence of small intestinal mucosal injuries were analyzed. RESULTS:Analyses of 148 subjects pre-treatment CE and 146 subjects post-treatment CE were performed. There were no significant differences between mean GTT and SBTT before and after treatment. Both GTT (𝜌 = 0.22, p < 0.01) and SBTT (𝜌 = 0.47, p < 0.0001) showed positive correlations between pre- and post-treatment CE. In pre-treatment CE, physical factors and the presence of small intestinal mucosal injury had no associations with SBTT. CONCLUSIONS:Moderate correlation in SBTT and slight correlation in GTT were shown on repeated CE. The factors affecting SBTT were not clarified in this analysis.
Keywords: Small bowel transit time, gastric transit time, repeatability, factors, capsule endoscopy
DOI: 10.3233/BME-181027
Journal: Bio-Medical Materials and Engineering, vol. 29, no. 6, pp. 839-848, 2018
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