Surgery for bad heart valves could be a thing of the past. New studies suggest that it is ok and often a new valve is best placed through a tube into an artery instead.
It is expected that the results quickly change treatment of a problem that affects millions of people – stiff or narrow aortic valve that does not let blood pass as it should. Until recently, a major operation was required to fix heavy cases and cut a lung core machine and surge the old valve and sew into a new one.
Developed ten years ago, inflatable aortic valves that can be led to a heart through a catheter into a blood vessel and buried inside the old valve. However, they are now only used in people with high or moderate risk of dying from surgery. The new studies tested these valves in people who were at low risk of the operation, as most patients did, and found that they were good or better than surgical ones.
“This is our final limit” to make these standards of quality of care. Joseph Cleveland, a University of Colorado heart surgeon who had no role in the studies or links with the sponsoring companies. “It is wonderful” that patients can avoid major surgery, he said.
The results were published by the New England Journal of Medicine on Saturday and were to be discussed at the American College of Cardiology conference in New Orleans on Sunday
. In the case of one study, standard surgery was carried out for approximately 1
In the other study, Medtronic's in-depth surgery or valve was given to 1,400 patients. Based on partial results, researchers estimated that an incurable stroke of 6.7 per cent of the surgical group died or suffered after two years.
In both studies, certain problems were more common with surgery, including severe bleeding and development of fluttering heart beat called atrial fibrillation. In the Medtronic study, a pacemaker was needed compared to 6 percent of people who had surgery at 17 percent of expandable valve recipients. because shorter hospital stays are needed and they need less difficulties, said Cleveland, who is also the spokesperson for the Cardiology College.
In the United States, aortic valves are being replaced by surgeries. It is only expected that around 25,000 will be involved this year and Cleveland hopes to fall by half next year and another half again in 2021.
He and other doctors say he is still studying longer more extensive doctors need to find out if they are still as surgery. A catheter-based approach to problems with some other heart valves, such as the morbid valve, has been developed or is being tested.
Marilynn Marchione can be followed at http://twitter.com/MMarchioneAP  ___
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