HCM Screening for Our Cats

Health Transparency at BearMary

Hypertrophic cardiomyopathy (HCM) is a common feline heart condition. BearMary uses echocardiographic screening as part of our breeding decisions and publishes screening results so families can review dated evidence.

Screening does not eliminate HCM risk or guarantee a cat’s future health. It provides information about the heart at the time of examination and helps guide informed breeding decisions.

A BearMary cat resting against a soft, light background

Our HCM Screening Approach

Cardiologist-Performed Echocardiograms

BearMary’s HCM echocardiographic examinations are performed and interpreted by veterinary cardiologists.

Repeat Screening

We aim to repeat echocardiographic screening approximately every two years, subject to veterinary cardiology availability.

Breeding Decisions

Cats with equivocal or abnormal HCM screening results are not continued in BearMary’s breeding program.

Transparent Results

BearMary publishes dated screening results so families can review the evidence directly.

What a Normal Result Means

Normal at the Time of Examination

A Normal result—reported as “No evidence of hypertrophic cardiomyopathy”—means no evidence of HCM was identified at the time of that echocardiographic examination.

It does not mean:

  • the cat is guaranteed never to develop HCM;
  • the cat’s descendants are guaranteed never to develop HCM; or
  • one examination replaces future monitoring.

A normal echocardiogram is a point-in-time finding, not a lifetime guarantee.

Why Echocardiography?

An echocardiogram uses ultrasound to evaluate the heart’s structure and function. It is the primary imaging test used to assess feline cardiomyopathy, while individual findings must be interpreted in the context of the complete examination.

For a plain-language explanation of common measurements and report terminology, see our Feline Echo Measurement Guide.

BearMary currently relies on echocardiographic screening rather than an HCM DNA test for this British Shorthair and British Longhair breeding program.

Known HCM-associated genetic tests are breed- and variant-specific, so genetic testing is not a universal substitute for echocardiography.

Veterinary references: Cornell Feline Health Center, Cornell Cardiology, and the ACVIM consensus statement on feline cardiomyopathies.

View Published HCM Screening Results

BearMary publishes individual-cat HCM screening records so families can review each examination date and reported conclusion.

HCM Resource Hub

Our Cats’ HCM Screening Results

Review published individual-cat examination dates and result evidence.

View screening results

Understanding HCM in Cats

Learn more about HCM, possible signs, diagnosis, and broader breed-risk context.

Read the HCM guide

Feline Echo Measurement Guide

Understand common echocardiogram measurements and report terminology in plain language.

Explore the echo guide

Common Questions

Does a normal echocardiogram mean a cat can never develop HCM?

No. A normal result means no evidence of HCM was identified at the time of that examination. It is not a lifetime guarantee.

How often does BearMary repeat HCM screening?

We aim to repeat echocardiographic screening approximately every two years, subject to veterinary cardiology availability.

Who performs the echocardiograms?

BearMary’s HCM echocardiographic examinations are performed and interpreted by veterinary cardiologists.

What happens if a screening result is equivocal or abnormal?

Cats with equivocal or abnormal HCM screening results are not continued in BearMary’s breeding program.

Continue Your Research

Review BearMary’s published HCM screening evidence, or explore our British Shorthair and British Longhair pages.

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