Info on feline heart murmurs

I have a 15 y/o domestic cat, female, who was diagnosed with a heart murmur about 6 years ago. It has grown in intensity since then, from a Grade I to, presently, a Grade IV (ish.. as my vet says). I am intent on gathering information on feline heart murmurs, and I understand that heart murmurs are well documented in dogs, but not in cats. Are there websites, or articles, or any information that you could recommend to read for those of us working with our cats and their murmurs?

  • Vetinfo

    By: Erika Raines El Segundo, CA

    Replied on 04/19/2011

    Heart murmurs in cats are often caused by problems with blood pressure or the heart muscle unlike murmurs in dogs which are often caused by the heart valves degenerating. As your cat's heart murmur seems to be worsening, the best idea for you to obtain more information on your cat's condition is to request a referral to a veterinary cardiologist. They will be able to perform advanced imaging of your cat's heart and discover what the cause of the heart murmur is. After this they will be able to explain the particular condition in detail and possibly provide you with treatment options for your cat.

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