Causes of Heart Arrhythmia in Dogs Heart muscle disease - dilated cardiomyopathy, hypertrophic cardiomyopathy, ARVC. Congenital heart defects - subaortic stenosis. Severe valve leakage. Enlargement of the heart chambers - chronic degenerative mitral valve disease. Myocarditis - inflammation of the heart.
How serious is a heart arrhythmia in dogs?
Arrhythmia is relatively common in dogs and is not always a cause for concern. An occasional irregular heart beat may not cause any other health problems. However, because an irregular beat may be an early symptom of a more serious underlying condition, it is wise to have it checked out by your veterinarian.
How Long Can dogs live with heart arrhythmia?
Of the dogs with sudden death, necropsy was performed on only 1 and revealed a left atrial tear and hemopericardium. Median survival time after the diagnosis of advanced heart failure was 281 days (range, 3–885 days).
What are the symptoms of a heart arrhythmia in dogs?
Commonly reported signs include sleeping or lying about the house more, weakness, lethargy, collapse or near collapse (stumbling, being wobbly), vomiting, and decreased appetite. These signs may wax and wane as an abnormal heart rhythm comes and goes.
Can arrhythmia in dogs be cured?
The team published their findings in the Journal of Veterinary Internal Medicine. "Accessory atrioventricular pathways are one of the more common causes of rapid heart rhythms in young dogs and we were pleased to prove they are curable with radiofrequency catheter ablation," said Dr. Wright.
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