What type of valve is on-X?

What type of valve is on-X?

The On-X Aortic Valve is a newer generation heart valve made of a unique material and design characteristics compared with earlier generations of mechanical heart valves. The On-X Aortic Valve is the only mechanical valve with FDA and CE approval to be used safely with less blood thinner (warfarin).

What is the gradient of a heart valve?

The gradient of a mechanical aortic valve is usually around 8 to 22 mmHg, which is near the gradient of a normally functioning (albeit mildly stenotic) natural valve.

How long does an on-X valve last?

They usually last 20 years or more. Other problems might happen with the valve, such as an infection. As long as you have the valve, you and your doctor will need to watch for signs of problems. After surgery, you may need to take the blood thinner called warfarin.

What is the on-X heart valve made of?

On-X is the only valve made of pure carbon, which produces a smoother polished surface than any other valve material. The smoother the surface, the less likely blood is to clot on it.

Can a mechanical aortic valve be replaced?

If the aortic valve can’t be repaired, surgery may be needed to replace the valve. In this procedure, a surgeon removes the aortic valve and replaces it with a mechanical valve or a valve made from cow, pig or human heart tissue (biological tissue valve).

What is peak gradient across aortic valve?

The aortic valve area should be measured in all patients with the suspicion of severe aortic stenosis with a mean gradient of less than 50 mm Hg (50% of patients in this study) or a peak gradient of less than 60 mm Hg (47% of patients in this study).

What is EF slope in Echo?

The E-F slope was correlated with transmitral flow during the first third of diastole (r = 0.87) but was decreased to a slightly greater extent for any given reduction in flow in patients with hypertrophic cardiomyopathy than in patients with coronary artery disease.

What is the lifespan of a mechanical aortic valve?

For example, they estimated that a 45-year-old undergoing mechanical valve replacement has a life expectancy of 19 years (compared with 34 years in the general population), and lifetime risk of thrombo-embolism, bleeding, and re-intervention of 18, 15, and 10%, respectively.

How do I know if my mechanical heart valve is failing?

Signs and symptoms of mechanical valve thrombosis may include muffled mechanical heart sounds, a new murmur, dyspnea, heart failure and cardiogenic shock. Thrombosis of right-sided valves causes right-sided heart failure, characterized by swelling of the legs, abdomen or both, without pulmonary congestion.

What is normal gradient of aortic valve?

Aortic Valve Mean Gradient. Normal Area 4.0-6.0 cm2.

What is normal pressure gradient for aortic valve?

In adults with normal aortic valves, the valve area is approximately 3.0 to 4.0 cm2. As aortic stenosis (AS) develops, minimal pressure gradient is present until the orifice area becomes less than half of normal.

What is the lifespan of a mechanical heart valve?

Mechanical valves usually last 20 years or more. You are less likely to need a mechanical valve replaced in your lifetime. But they can cause blood clots, so you’ll take a blood thinner called warfarin (such as Coumadin). Tissue valves are less likely to cause blood clots, so you don’t have to take warfarin.