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Question:

My cat was just diagnosed with HCM

I could really use some advice. My sweet cat, Oliver, was just diagnosed with hypertrophic cardiomyopathy (HCM), and I'm feeling so overwhelmed. We went to the vet because I noticed he was breathing a bit heavier than usual, and I never expected to leave with news like this. He's only six years old and truly my little fur baby. They’ve started him on some meds, but I’m so nervous about what this all means long-term. I’ve been reading about possible complications and supportive therapies, but it’s a lot to take in. Has anyone else’s cat been through this? How do you manage their symptoms and care? I’m just desperately trying to figure out how to best take care of him and make sure he’s comfortable. Any tips or encouragement would be greatly appreciated!

Answer:

Hello there! I understand learning that your cat has hypertrophic cardiomyopathy (HCM) can be concerning, but I'm here to help guide you through what this means and what you can do.



HCM is a heart condition where the walls of the heart become thickened, which can impact the heart's ability to pump blood effectively. It's a fairly common issue in cats, especially certain breeds like Maine Coons and Ragdolls, and it's often genetic.



While some cats with HCM show no signs, others might experience symptoms like breathing difficulties, lethargy, or even sudden collapse. It's essential to monitor your kitty for any changes in their behavior or activity level. If you notice rapid breathing, open-mouth breathing, or if your cat appears in distress, it’s crucial to seek veterinary attention immediately.



At home, try to keep your cat in a stress-free environment. Avoiding undue stress can really help manage the condition. Make sure they have easy access to food and water, and try to maintain a healthy weight for your playful friend, as obesity can put additional strain on their heart.



I recommend setting up a video consult through Dial A Vet so we can discuss your cat’s specific case in more detail. Remember, frequent check-ups are often vital in managing HCM effectively. You're doing a great job being proactive about your cat’s health, and I'm here to support you every step of the way!

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 20, 2025

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The "Ask a Vet" forum on Dial A Vet offers general information and helpful tips on pet health, but it's not a substitute for professional veterinary care. The advice here doesn't create a veterinarian-client-patient relationship, and our vets can't diagnose or treat your pet remotely. For emergencies or specific medical concerns, always contact your local veterinarian immediately. Your pet's health is unique, and decisions should only be made after consulting with a qualified professional. By using this forum, you acknowledge these limitations and agree to seek in-person veterinary advice for all your pet's health needs. View our content guidelines.
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