A heart murmur is an abnormality of the heartbeat. Heart murmurs are usually identified when a veterinarian uses a stethoscope to listen to your dog's heart. There are several types and degrees of ...
A ventricular septal defect (VSD) is a hole in the septum, which is the wall separating the two lower chambers of the heart. In many cases, the hole closes on its own. A ventricular septal defect is a ...