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Why did my cat with a heart murmur die suddenly, seemingly choking?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Male | 5 years and 4 months old

My cat died recently started choking, tongue hanging out die within seconds, the cat did have a heart murmur.

2 Answers

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on May 23rd, 2016

I am so sorry that your kitty died. The fact that he had a heart murmur means that he likely died of a blood clot in the lungs which then actually killed him. There would have been no way to save him and you would not have been able to prevent it. It is just one of those terrible things that happen. But he had 5 great years with you and that is something you can be proud of.

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6Pet Parents found this answer helpful

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    Answered By Jenna Beyer, DVM, MBA, cVMA

    Veterinarian, Certified Veterinary Acupuncturist

    Published on August 3rd, 2017

    I am sorry to hear of Garfield's passing. A cat with a heart murmur can be much sicker than we realize. Cat's often get heart disease that is very heart to diagnose and there is not much in the way of treatment or prevention. It does sound like he went into heart failure. In congestive heart failure, fluid builds up in the lungs and makes it hard to breath, so cats will breath heavier and faster, and will often open their mouths. In the final stages before death, cats often become very restless and may do odd things, like cry out or try to hide somewhere. Again, I am sorry for your loss. I am glad your brother has someone that cares like you to help him during this difficult time.

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    1Pet Parents found this answer helpful

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