Dog With End Stage Heart Murmur. Nevertheless, the dog’s heart’s structural integrity (or makeup) at this stage is yet to be. Stage d is a dog that has congestive heart failure that is not responding to treatment.

Flow disturbances associated with outflow obstruction or forward flow through diseased valves or into a dilated great vessel. But when a deficiency happens, it causes an obstruction in the circulatory process, and one of the most frequent heart problems among dogs is a heart murmur. Grade ii murmurs are soft, but your veterinarian can.