6살된 암컷 불테리어종 개 (체중 17 kg)가 운동 불내성과 실신증상으로 내원하였다. 진단검사를 통해 특발성 심근확장증에 의한 심방조동과 완전 방실차단 증례로 진단되었다. 환자는 심근증에 대한 일반적인 치료와 dofetilide를 포함한 항부정맥 치료를 통해 11개월간 관리되었다. 하지만 환자는 갑작스런 심장마비로 폐사하였다.
A six-year-old intact female Bull Terrier dog (weighing 17 kg) was referred to the Veterinary Teaching Hospital with exercise intolerance and occasional syncope as the primary complaint. Diagnostic studies revealed a rare case of atrial flutter with complete heart block and aberrant ventricular activation from the ectopic focus, possibly due to idiopathic dilated cardiomyopathy. Although the dog was responded with cardiac medication for right-sided heart failure and anti-arrhythmic agent (dofetilide), the dog died suddenly of cardiac arrest after 11 months of treatment.
