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Aortic Stenosis in Cats: Cardiac Welfare

Feline aortic stenosis is a congenital heart defect causing outflow obstruction. This guide covers welfare implications and management.

Key Facts

Aortic stenosis involves narrowing of the aortic outflow tract
Unlike in dogs, the condition is relatively rare in cats
Severity ranges from mild (incidental) to severe (exercise intolerance, syncope)
An ejection murmur at the left heart base is the characteristic finding
Severe cases risk sudden cardiac death from arrhythmias
Management with beta-blockers reduces arrhythmia risk and myocardial oxygen demand

Welfare Considerations and Management

Welfare-centred management of feline aortic stenosis requires specialist cardiological assessment to determine severity and guide treatment. Mild cases require monitoring but no treatment. Moderate cases may benefit from atenolol to reduce heart rate and arrhythmia risk. Severe cases require activity restriction and close monitoring. Regular echocardiographic assessment tracks disease progression. Responsible breeding programmes should screen for this congenital condition.

What You Can Do

Seek specialist cardiology assessment for any cat with an unexplained heart murmur
Restrict strenuous activity in cats with moderate to severe aortic stenosis
Administer prescribed beta-blocker medication precisely as directed
Monitor regularly for signs of disease progression