http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. For more than 40 years, patients under 65 years of age requiring heart valve replacement have had to choose between a mechanical valve that offers life-long durability but requires aggressive warfarin anticoagulation or a biological (cow or pig) valve that will wear out in 10-20 years but does not require anticoagulation. Aggressive warfarin anticoagulation is accompanied by significant annual risk of bleeding, while inadequate anticoagulation of a mechanical artificial valve has been associated with high risk of clotting problems that can cause strokes. http://medicalxpress.com/news/2013-05-low-dose-anticoagulation-therapy-mechanical-heart.html Cardiology Mon, 06 May 2013 09:07:45 EST news287050058 Every year, over 300,000 heart valve replacement operations are performed worldwide. Diseased valves are often replaced with mechanical heart valves (MHVs), which cannot yet be designed to suit each patient's specific needs. Complications such as blood clots can occur, which can require patients to take blood-thinning medication. http://medicalxpress.com/news/2012-12-simulations-blood-mechanical-heart-valves.html Cardiology Wed, 19 Dec 2012 09:34:54 EST news275132085 (Medical Xpress)—A Painted Post woman is recovering after undergoing a less invasive heart-valve replacement procedure at the University of Rochester Medical Center. The valve replacement technique is meant for patients who cannot withstand traditional surgery.   http://medicalxpress.com/news/2012-10-heart-valve-procedure-inoperable-patients.html Cardiology Wed, 10 Oct 2012 07:45:39 EST news269073917 Patients diagnosed with aortic stenosis who are too sick for open-heart surgery have better survival rates and an improved quality of life after undergoing catheter-based heart valve replacement than if the patients had been treated with standard medical therapy, according to a study authored by a Cedars-Sinai Heart Institute physician based on results from a multicenter clinical trial. http://medicalxpress.com/news/2012-03-heart-patients-non-surgical-valve-standard.html Cardiology Mon, 26 Mar 2012 09:28:23 EST news251972890 (Medical Xpress) -- An innovative approach for implanting a new aortic heart valve without open-heart surgery is being offered at Rush University Medical Center to patients with severe aortic stenosis who are at high-risk or not suitable candidates for open heart valve replacement surgery.  http://medicalxpress.com/news/2011-06-option-patients-untreatable-non-perative-heart.html Cardiology Tue, 28 Jun 2011 12:45:13 EST news228483896 An innovative approach for implanting a new aortic heart valve without open-heart surgery is being offered at Rush University Medical Center to patients with severe aortic stenosis who are at high-risk or not suitable candidates for open heart valve replacement surgery. http://medicalxpress.com/news/2011-06-heart-valve-chest-option-non-operable.html Cardiology Fri, 24 Jun 2011 14:12:45 EST news228143551