It is very common for young puppies, especially large breed puppies, to develop an innocent heart murmur while they are growing rapidly. The murmur may first appear at 6-8 weeks of age, and a puppy with an innocent heart murmur will usually outgrow it by about 4-5 months of age.
Is a heart murmur in a puppy serious?
What Is the Prognosis for a Dog With a Heart Murmur? Heart murmurs can be serious, but they are not a cause for panic. Many of the causes of heart murmurs are treatable, and in some cases, may resolve on their own.
Should I take a puppy with a heart murmur?
Shouldn't I be taking her to a cardiologist? A young puppy with a murmur could be perfectly healthy and grow out of it, or could have a congenital defect in the heart. The best diagnosis for your pup is what is known as an innocent murmur.
What do I do if my puppy has a heart murmur?
We recommend following up with your veterinarian should your pet have a heart murmur. Also follow up if your dog is experiencing signs of heart disease, such as fatigue, exercise intolerance, chronic cough, and weakness.
Does a heart murmur shorten a dogs life?
Many dogs live a long time after being diagnosed with a heart murmur, and some can even live years after being diagnosed with heart failure.
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