Aortic Thromboembolism (Saddle Thrombus)

Aortic Thromboembolism is the passing of a clot into the general blood circulation that becomes stuck within an artery stopping the flow of blood (thrombosis-clotting of an artery).

This blockage normally occurs in the arteries sending blood to the rear legs causing paralysis in the legs and severe pain. Blockage in the renal area can cause kidney failure and a cerebral artery blockage can bring on seizures.

It is a common complication of cardiomyopathy, occurring in almost one third of cats with existing heart disease even though heart disease may not have been documented. Most owners are unaware of existing issues and the cat is usually acting normally before the event. The first notice of a problem is the cat begins suffering extreme pain with loud vocalization and sudden inactivity (usually loss of mobility in their rear legs).

Immediate vet attention is required and you will need to provide a complete history of your cat's health and any recent changes in the cat's behavior. Unfortunately, cats with aortic thromboembolism have a poor prognosis and will require intensive care and hospitalization to prevent complete heart failure. Only a vet can accurately diagnosis the disease and begin a treatment program that may be successful.

For a more in depth look at the disease, diagnosis and treatment please visit the following sites:

Written by Ron Lueth, Pet Guardian Angels of America This work may be shared through the Creative Common License only if attributed to Pet Guardian Angels of America at http://www.pgaa.com