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KMID : 1094020080250050391
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Journal of Veterinary Clinics
2008 Volume.25 No. 5 p.391 ~ p.395
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Sinoatrial Reentrant Tachycardia in a Yorkshire Cross Dog
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Nam So-Jeong
Hyun Chang-Baig
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Abstract
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An 8-year-old intact male Yorkshire cross dog (7.5 kg of body weight) was referred with the primary complaint of exercise intolerance and occasional syncope. Initial cardiological examination could not identify any abnormalities except mild mitral regurgitation. Exercise stress test revealed chronotrophic incompetence. Furthermore the 1 hr-digital event recording found the sudden onset of paroxysmal sinus tachycaridas (156-172 bpm) lasting few minutes and stopping abruptly. In addition, the tachycardia terminated by vagal maneuver and verapamil administration. Based on this finding, the case was diagnosed as sinoatrial reentrant tachycardia (SART). The dog was treated with diltiazem and enalapril. Although the dog still has exercise intolerance, no syncope has been observed after medication.
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KEYWORD
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SND, sinoatrial reentrant tachycardia, SART, dog, sinus node dysfunction
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