/tags/mitral-valve mitral valve en-US Copyright Mon, 03 Nov 2014 12:29:00 GMT /health-science-tech/2014-11-03/catheters-an-alternative-to-open-heart-surgery-for-the-elderly It’s common for the elderly to experience aortic stenosis, a hardening or narrowing of the aortic heart valve.Open heart surgery’s the standard way to… Mon, 03 Nov 2014 12:29:00 GMT /health-science-tech/2014-11-03/catheters-an-alternative-to-open-heart-surgery-for-the-elderly Sam Baker