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    Breaking News

    FDA Expands Heart Valve Approval to Include Size for Newborn Patients

    Now includes 15-mm valve size, making it the smallest mechanical heart valve approved in the world.

    FDA Expands Heart Valve Approval to Include Size for Newborn Patients
    The Masters Series Mechanical Heart Valve was first approved in 1995 for patients with a diseased, damaged or malfunctioning aortic or mitral heart valve. Image courtesy of Abbott.
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    U.S. Food and Drug Administration03.06.18
    The U.S. Food and Drug Administration expanded the approval of a heart valve to include a size small enough to be used in newborn pediatric patients to treat heart defects. Specifically, the agency approved the Masters Series Mechanical Heart Valve with Hemodynamic Plus (HP) Sewing Cuff to include the 15-mm valve size, making it the smallest mechanical heart valve approved in the world.
     
    “While larger replacement heart valves have been approved for years, there is an unmet need in young pediatric patients, especially newborns and infants, with congenital valve defects who may be too small to use currently-marketed heart valves,” said Jeff Shuren, M.D., J.D., director of the FDA’s Center for Devices and Radiological Health.
     
    Heart valve disease occurs if one or more of the four heart valves, which direct the flow of blood through the heart, fail to function properly. In pediatric patients, a malfunctioning heart valve is often the result of a congenital heart defect at birth. Each year, more than 35,000 babies in the U.S. are born with congenital heart defects, some of which will require heart valve surgery and, potentially, replacement heart valve surgery. However, prior to today’s approval, there have been limited replacement heart valve options available because of the patients’ small size. The Masters Series 15-mm HP valve represents an important treatment option for these patients.
     
    The Master Series Mechanical Heart Valve is a rotatable, bileaflet (two-leaflet) valve designed for implantation in the aortic or mitral position. The bileaflet design consists of two semi-circular discs that open and close in response to blood pressure changes during the heartbeat, similar to a patient’s own valve.
     
    The Masters Series Mechanical Heart Valve was first approved in 1995 for patients with a diseased, damaged or malfunctioning aortic or mitral heart valve. The device is also approved for use in replacing previously implanted aortic or mitral prosthetic heart valves. Today’s approval expands the range of valve sizes available, providing smaller patients another treatment option.
     
    The FDA evaluated clinical data from a single-arm study of 20 pediatric patients with serious heart failure ranging in age from 1.5 weeks to 27 months at the time of mitral valve implant. The data showed that one year after the implant procedure, the probability of survival was 69.3 percent and the probability of not experiencing a valve-related adverse event was 66.8 percent. Serious valve-related adverse events observed during the study through one-year follow-up included blood clots in the device and bleeding in the brain. Anticoagulation (blood thinning) therapy may be necessary after the procedure, to prevent clotting on the device, which can increase the risk of bleeding.
     
    The Master Series Mechanical Heart Valve should not be used by patients unable to tolerate anticoagulation therapy.
     
    The FDA granted approval of the Master Series Heart Valve to St. Jude Medical (now Abbott).
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