http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Warfarin, one of the most inconvenient, dangerous and disliked drugs in the world, has remained vitally important for more than 50 years. http://www.physorg.com/news175808440.html Medicine & Health Mon, 26 Oct 2009 22:30:01 EST news175808440 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 to treat mitral regurgitation, a serious heart disorder where blood leaks backwards toward the lungs with each heart beat. http://www.physorg.com/news173443735.html Medicine & Health Tue, 29 Sep 2009 11:49:47 EST news173443735 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 is the first report to demonstrate this potential problem, the researchers say. http://www.physorg.com/news165506043.html Medicine & Health Mon, 29 Jun 2009 14:54:26 EST news165506043 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 fit precisely. http://www.physorg.com/news163773414.html Chemistry Tue, 09 Jun 2009 13:37:20 EST news163773414 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 of new tools and techniques for heart surgery. The machine saves researchers time and money by allowing them to test and refine their technologies in a realistic surgical environment, without the cost and time associated with animal or clinical trials. http://www.physorg.com/news161342842.html Medicine & Health Tue, 12 May 2009 10:27:47 EST news161342842 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 Trial presented today at the Society for Cardiovascular Angiography and Interventions (SCAI) 32nd Annual Scientific Sessions, the CARILLON Mitral Contour System safely treated leaky mitral valves even in patients with moderate-to-severe heart failure, and was effective in reducing the backward flow of blood from the left ventricle to the left atrium. http://www.physorg.com/news160920965.html Medicine & Health Thu, 07 May 2009 13:16:38 EST news160920965 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 bypass while in his 50s, and having lived almost a century, Lafferty wasn't a good candidate for heart surgery for many reasons. His local cardiologist referred him to surgical and interventional specialists at Chicago's Bluhm Cardiovascular Institute of Northwestern Memorial Hospital. And, on January 21, 2009, Lafferty became the first patient in Illinois to receive a prosthetic heart valve through a procedure known as transapical transcatheter aortic valve implantation, which combines catheterization technology and traditional surgery, allowing doctors to implant a new heart valve in place of Lafferty's diseased valve while his heart remained beating. http://www.physorg.com/news153500291.html Medicine & Health Tue, 10 Feb 2009 14:58:44 EST news153500291 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 2008. http://www.physorg.com/news145555799.html Medicine & Health Mon, 10 Nov 2008 16:09:59 EST news145555799