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Capsule endoscopy to detect mucosal lesions associated with gastrointestinal bleeding in dogs

D. L. Davignon, A. C. Y. Lee, A. N. Johnston, D. D. Bowman, K. W. Simpson

CAPSULE endoscopy is a non-invasive endoscopic imaging technique that is increasingly used in human medicine as a first-line diagnostic tool in cases of suspected gastrointestinal haemorrhage. This study aimed to examine the ability of capsule endoscopy to detect mucosal abnormalities in dogs with gastrointestinal haemorrhage.

Eight dogs presenting for evaluation of gastrointestinal haemorrhage and two healthy controls were included in the study. Endoscopy was performed using the Olympus Endo Capsule System, where, once ingested, an 11 x 26 mm wireless endoscopic capsule was propelled through the gastrointestinal tract by peristalsis. Images were evaluated for quality, gastric emptying time, small intestinal transit time and presence of lesions.

Capsule endoscopy was safe and well tolerated in five of eight dogs (two controls and three dogs with gastrointestinal haemorrhage) and enabled high-quality real-time imaging of the stomach and small intestine. Gastric emptying time ranged from one to 270 minutes and small intestinal transit time ranged from 15 to 180 minutes. In three of eight dogs, the capsule remained in the stomach despite treatment …

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