title: Ask the doctors. I thought one of the reasons to receive a heart valve made from cow tissue was that you don't have to take blood thinners. Now my doctor is telling me that I will need to take warfarin [Coumadin] for several months after I have my aortic valve replaced. Has the thinking changed?
authors.forename: Thomas
authors.initials: T
authors.lastname: Lee
authors.forename: Richard
authors.initials: R
authors.lastname: Lee
mesh_terms: D000925:Anticoagulants / Q000008:administration & dosage*; D001021:Aortic Valve / Q000601:surgery; D001705:Bioprosthesis; D006350:Heart Valve Prosthesis; D006801:Humans; D011182:Postoperative Care; D011183:Postoperative Complications / Q000517:prevention & control*; D014859:Warfarin / Q000008:administration & dosage*
chemical_list: D000925:Anticoagulants; D014859:Warfarin