Aortic Stenosis: Heart Valve Disease

Patient Education Video on Heart Valve Disease

One way to know if an aortic valve (natural or prosthetic) is stenotic is to know the gradient across the valve (pressure difference from one side of the valve to the other). A normal natural aortic valve gradient is less than 10 mmHg (millimeters of mercury). A gradient above 10mmHg in an aortic valve is considered stenotic.

The On-X heart valve was the first manufactured valve on the market to produce aortic valve gradients under 10mmHg in every size, even in small aortic sizes. Other manufacturers have had to modify their older versions to “keep up” with the pacesetting design of the On-X heart valve.

The following video explains hemodynamic performance.

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