When a veterinarian uses a stethoscope to listen to your dog’s heart, chances are that the heart will sound normal. However, in some cases, a veterinarian may hear an abnormality such as a heart ...

But, my guess is that when he is calm, he develops respiratory sinus arrhythmia, a normal condition that commonly occurs when a dog’s heart rate decreases with relaxation. Not all arrhythmias ...

The primary cause of heart murmurs in dogs is rapid blood flow in the heart due to narrowed or leaky valves. When the normal blood flow within the heart gets disturbed, it creates an unusual ...