
06/14/2025
Shanaya was diagnosed with a heart murmur at her first puppy appointment YIKES!
This is a sound that is heard when listening to the heart with a stethoscope that indicates turbulent blood flow. (Myxomatous) Mitral Valve Disease is the most common acquired heart disease in dogs and accounts for > 70% of all canine heart diseases. This is much more common in small breed dogs. When a small breed dog has a left sided systolic heart murmur, 99% of these dogs have mitral valve disease.
The valves that keep blood flowing one way in the heart start to leak as they have degenerative changes. As a result, blood flows both forwards and backwards (regurgitation). In early disease, there is no change to the size of the heart. As the disease progresses from the back flow of blood in the heart, the heart chambers can become enlarged and the heart beats less effectively. An ultrasound of the heart (echocardiogram) can be performed to reveal the cause of this heart murmur and is always recommended with our local cardiologist. This is important to workup prior to anesthesia such as spay and neuter.
📸 cred: Eva, Veterinary technician