Real-Time Ultrasonographic Evaluation of Canine Gastric Motility in the Postprandial State
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概要
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Gastric motility is affected by several pathological conditions which may induce upper gastrointestinal clinical symptoms. The pathogenesis of canine gastric motility disorders is poorly understood because of methodological limitations. This study aimed at establishing a simple method for evaluating postprandial gastric motility in dogs. Gastric motility was ultrasonographically assessed in 7 healthy beagles using a technique previously described in humans. The motility index (MI), an indicator of gastric antral motility, was calculated by measuring the area of the gastric antrum in both a contracted and relaxed phase and by counting the number of contractions. The MI was measured every 30 min for 3 hr after feeding and compared with gastric emptying as assessed by a 13C-octanoic acid breath test. The MI at 30 min had the lowest variability in the 7 dogs (mean ± SD, 9.77 ± 0.42; coefficient of variance, 4.25%), and a significant correlation was observed with gastric emptying coefficient (R2=0.8126, P=0.005) and half-emptying time (R2=0.654, P=0.027). When atropine was administered, a significant decrease in the MI at 30 min was observed compared with the control (9.77 ± 0.42 vs. 5.19 ± 0.22, P=0.0003). In conclusion, evaluation of the MI at 30 min is suitable for assessing gastric motility and enables us to assess gastric motility simply in a short time. By using this method, further studies for the pathogenesis of canine gastric motility disorders are warranted.
著者
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Maeda Shingo
Department Of Cardiology Yokohama-minami Kyosai Hospital
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Fujino Yasuhito
Department Of Veterinary Internal Medicine Graduate School Of Agricultural And Life Sciences The Uni
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NAKASHIMA Ko
Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The U
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FUKUSHIMA Kenjiro
Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The U
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Tsukamoto Atsushi
Department Of Veterinary Internal Medicine The University Of Tokyo
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Ohno Koichi
Department Of Chemical Engineering Faculty Of Engineering Niigata University
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Tsujimoto Hajime
Department Of Internal Medicine And Veterinary Hospital Division Of Veterinary Medicine The Universi
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TSUKAGOSHI Taro
Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The U
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Maeda Shingo
Department Of Biochemistry The Cancer Institute Of The Japanese Foundation For Cancer Research
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FUKUSHIMA Kenjiro
Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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TSUKAMOTO Atsushi
Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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NAKASHIMA Ko
Department of Veterinary Internal Medicine Graduate School of Agricultural and Life Sciences, The University of Tokyo
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TSUKAGOSHI Taro
Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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FUKUSHIMA Kenjiro
Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1–1–1 Yayoi, Bunkyo-ku, Tokyo 113–8657, Japan
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MAEDA Shingo
Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University
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