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The FDA has approved a redesigned heart valve for patients with aortic valve stenosis who are at high risk of death or complications from open-heart surgery or have an inoperable condition.
Over time, calcium deposits can form in the aortic valve and cause it to narrow. As a result, the heart may weaken from additional exertion needed to pump enough blood through the smaller opening. Severe aortic valve stenosis generally requires heart valve replacement to improve blood flow.
Voelker R. Less Leakage With New Heart Valve. JAMA. 2015;314(5):443. doi:10.1001/jama.2015.9096