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What is stenosis?

Stenosis is the narrowing of a blood vessel, heart valve, or other bodily passage. With a heart valve stenosis, thickened valve tissue narrows the valve opening and limits the amount of blood that can pass through.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.