(HealthDay News) -- A new method of repairing leaking mitral heart valves appears safe, a small study shows.
In the new study, researchers tested a reversible implant called the Percutaneous Transvenous Mitral Annuloplasty (PTMA) system, which is installed via a catheter.
In the heart, the mitral valve controls the flow of blood from the left atrium into the left ventricle (from the upper left chamber into the lower left chamber). A leaking mitral valve causes blood to flow back into the left atrium. This condition can worsen existing heart failure or cause congestive heart failure, according to a news release from the American Heart Association.
Currently, mitral valve repair requires opening the chest and putting the patient on a heart-lung machine. This method increases the risk of heart attack and stroke during surgery, as well as post-surgery risks such as lung problems, irregular heartbeat and infection, the news release noted.
The PTMA system changes the shape of the mitral annulus (a fibrous ring encircling the mitral valve) and prevents blood leakage by allowing the valve's two leaflets to close more tightly. Read more...
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