Hypertrophic Cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is a syndrome in cats whereas the heart muscles begin to thicken. This causes very dysfunctional blood flow and many organs will begin to fail due to decreased blood. This is a condition seen in young to middle-aged cats.
The cause is unknown but there may be a genetic link. An inherited trait has been traced in a family of Maine Coon cats.
Some cats show no clinical signs, but most will have breathing difficulty and exercise intolerance. Their appetite may be decreased. It is not uncommon for a pet to collapse suddenly and even die. It is very rare for a cat to cough.Some cases of HCM will cause blood clots in the circulation. In these cases, cats can develop aortic thromboembolism (ATE). The condition occurs when a clot lodges in the aorta near the back legs. These cats can become suddenly paralyzed.
There are many effective drugs that can control this disease, but it can not be cured. Diltiazem, atenolol and aspirin are very commonly used. Owners need to be aware that blood clots can still develop even with appropriate treatment.
