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Boxer cardiomyopathy (also known as "Boxer arrhythmogenic right ventricular cardiomyopathy") is a disease of the myocardium primarily affecting Boxer dogs.It is characterized by the development of ventricular tachyarrhythmias, resulting in syncope and sudden cardiac death.
Puppies and adult dogs diagnosed with subaortic stenosis can suffer from a range of clinical signs such as fainting, breathing difficulty in the moderate cases or heart failure and sudden death in severe cases. [2] Symptoms also include sudden/strong lethargicism, continuous heavy panting, and a rise in temperature.
Broad classification of arrhythmias according to region of heart required to sustain the rhythm Arrhythmia may be classified by rate ( tachycardia , bradycardia ), mechanism (automaticity, re-entry, triggered) or duration (isolated premature beats ; couplets; runs, that is 3 or more beats; non-sustained = less than 30 seconds or sustained ...
Premature atrial contractions are often benign, requiring no treatment. Occasionally, the patient having the PAC will find these symptoms bothersome, in which case the doctor may treat the PACs. Sometimes the PACs can indicate heart disease or an increased risk for other cardiac arrhythmias. In this case, the underlying cause is treated.
Atrial fibrillation (AF, AFib or A-fib) is an abnormal heart rhythm (arrhythmia) characterized by rapid and irregular beating of the atrial chambers of the heart. [11] [12] It often begins as short periods of abnormal beating, which become longer or continuous over time. [4]
A normal resting heart rate is 60 to 100 beats per minute. A resting heart rate of more than 100 beats per minute is defined as a tachycardia. During an episode of SVT, the heart beats about 150 to 220 times per minute. [9] Specific treatment depends on the type of SVT [5] and can include medications, medical procedures, or surgery. [5]
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If a life-threatening arrhythmia is detected, the device can deliver a small electric shock to terminate the abnormal rhythm and restart the heart. [ 1 ] Implantable defibrillators are often recommended for those with CPVT who have experienced blackouts, ventricular arrhythmias or cardiac arrest despite taking appropriate medication. [ 2 ]