Heart valve
hideIn anatomy, the heart valves maintain the unidirectional flow of blood in the heart by opening and closing depending on the difference in pressure on each side. They are mechanically similar to reed valves.
There are four valves in the heart (not counting the valve of the coronary sinus, and the valve of the inferior vena cava):
For more information about Heart valve, read the full article at
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News tagged with heart valves
New hope on finding better blood thinners
Oct 26, 2009 |
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Warfarin, one of the most inconvenient, dangerous and disliked drugs in the world, has remained vitally important for more than 50 years.
Study offers less complex, minimally invasive procedure to treat heart valve leak
Sep 29, 2009 |
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Cardiac experts at Rush University Medical Center are studying a new, minimally invasive procedure to treat leaky heart valves. Instead of open heart surgery, patients will undergo a less complex catheter-based procedure ...
4 out of 106 heart replacement valves from pig hearts failed
Jun 29, 2009 |
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Pig heart valves used to replace defective aortic valves in human patients failed much earlier and more often than expected, says a report from cardiac surgeons at Washington University School of Medicine in St. Louis. This ...
Biodegradable synthetic resin replaces vital body parts
Jun 09, 2009 |
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Researchers at the University of Twente (UT) have developed a new type of resin that can be broken down by the body. This new resin makes it possible to replicate important body parts exactly and make them ...
'Beating' heart machine expedites development of new tools for heart surgery (w/Video)
May 12, 2009 |
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A new machine developed at North Carolina State University makes an animal heart pump much like a live heart after it has been removed from the animal's body, allowing researchers to expedite the development ...
Intriguing early results for device that reshapes enlarged, leaky heart valve
May 07, 2009 |
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An innovative device that acts like a belt to reshape an enlarged, leaky heart valve is providing a minimally invasive treatment option for patients who are too sick for open-heart surgery. According to a Late-Breaking Clinical ...
Diseased heart valve replaced through small chest incision
Feb 10, 2009 |
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When 91-year-old Irvin Lafferty was diagnosed with severe blockage of his heart valve—hardening that is formally known as aortic valve stenosis—open-heart surgery was out of the question. He'd already survived quadruple ...
Umbilical cord blood may help build new heart valves
Nov 10, 2008 |
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Children with heart defects may someday receive perfectly-matched new heart valves built using stem cells from their umbilical cord blood, according to research presented at the American Heart Association's Scientific Sessions ...
