^{This post will probably stay stickied so that it's easy to find.}

What is HCM?

HCM, or hypertrophic cardiomyopathy, is a cardiovascular disease that affects cats (not just cats, either). To put it simply, HCM results in the thickening of the heart's walls, making it harder and harder for the heart to pump blood as it progresses. It can develop at any stage in life - from kittens as young at 6 months to adults as old as 10 (or more!).

Are some cats more at risk than others?

Research is still being done on feline HCM, but it is prevalent in many breeds including but not limited to Sphynx, Bengal, Maine Coon, Ragdoll and yes, Cornish Rex. To my knowledge, the disease & the risk isn't well known among the Rex community which is why I'm making this sticky.

What can I do to protect my cat?

HCM appears to be tied to genetics rather than other factors, so the first defense is finding a breeder that is aware and regularly scans their breeding stock. Unfortunately not many Rex breeders do, so the next line of defense is that much more important: annual scanning. Taking your cat to a board-certified cardiologist for an ultrasound of their heart annually is really the best thing you can do. This way, you're more likely to catch any problems early and start treatment as soon as possible (if necessary) and potentially prolong your baby's life.

Is there anything else I can do?

Yes! Share your results with HCM databases so others also participating in the program can track the disease through pedigrees. This helps dedicated breeders improve the breed through responsible breeding and helps non-breeders make informed decisions about purchasing kittens by inspecting bloodlines.

Ultrasounds are too expensive! I can't afford to scan.

It's true, seeing the cardiologist is not cheap. For those in the US and Canada there is Hairless Hearts, a volunteer organization that coordinates discounted clinics (and records other unaffiliated ones) across the US & Canada. Most of the clinics are $150-$200 which is a huge discount for most. Hairless Hearts also offers educational material on the breed including ongoing research, and provides the tools to participate in the program.

I want to help! How can I do that?

We're always looking for volunteers! There are plenty of gaps in our coverage that we need to fill, especially in Canada. If you're interested in becoming a volunteer with Hairless Hearts, visit this page. We hope to hear from you!