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Idiopathic Atrial Standstill in an Old English Sheepdog Cross Dog

Old English Sheepdog Cross Dog에서의 특발성 심방정지

  • Suh, Sang-il (Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University) ;
  • Choi, Ran (Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University) ;
  • Hyun, Changbaig (Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University)
  • 서상일 (강원대학교 수의학과 소동물 내과교실) ;
  • 최란 (강원대학교 수의학과 소동물 내과교실) ;
  • 현창백 (강원대학교 수의학과 소동물 내과교실)
  • Accepted : 2015.08.20
  • Published : 2015.08.31

Abstract

An 1 year old intact male mixed dog (weighing 20 kg) was presented with primary complaints of abdominal distension and severe exercise intolerance. Electrocardiogram found profound bradycardia (46-79 beats/min) with atrial standstill. Laboratory studies found no particular abnormalities. Serum cortisol and T4 concentration were within normal range. Diagnostic imaging studies revealed generalized cardiomegaly, ascites, dilation in all cardiac chambers, absence of atrial contraction, absence of transmitral A-peak, mitral and tricuspid valve insufficiency and normal left ventricular systolic dimension. Based on diagnostic findings, the case was diagnosed as idiopathic atrial standstill. The dog was treated with conventional therapy for heart failure.

1년령 intact male mixed dog(체중 20 kg)가 복부 팽창과 심각한 운동불내성을 주증으로 내원하였다. 심전도 검사에서 심방정지와 함께 두드러진 서맥(46-79회/분)이 관찰되었다. 실험실 검사상 특별한 이상 소견은 관찰되지 않았다. 혈청 cortisol과 T4농도는 정상 범위였다. 영상검사상 심장비대, 복수, 모든 심장 chamber의 확장, 심방정지, transmitral A-peak 소실, 이첨판과 삼첨판 역류, 정상 좌심실 수축기 직경이 관찰되었다. 검사결과에 근거하여 특발성 심방정지로 진단되었으며 심부전에 준한 일반적인 치료를 실시하였다.

Keywords

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