Aortic stenosis
Aortic stenosis is one of the more common congenital heart defects in dogs. The condition is often discovered in apparently healthy dogs by a veterinarian during a routine examination (such as before vaccination).
If your veterinarian identifies a heart murmur in your puppy it is essential to have further investigation to establish the cause of the murmur so that appropriate treatment can be given early.
Heart: aortic stenosis - 2-D ultrasound ©University of Cambridge