title: Valve thrombosis 7 months after transcatheter aortic valve implantation.
abstract: A 77-year old man underwent transcatheter aortic valve implantation for severe aortic stenosis with a 29-mm Edwards-Sapien XT aortic valve bioprosthesis. Periprocedural transesophageal echocardiography and computed tomography showed good positioning and expansion of the prosthesis with only minor transvalvular insufficiency. On a routine checkup 7 months later, echocardiography and computed tomography showed a high transvalvular gradient suggestive of valve thrombosis, which could not be treated with warfarin. Because of rapid deterioration of the patient's clinical condition, an urgent surgical valve replacement was performed 4 weeks after initial notice of the valve thrombosis. The patient's postoperative stay was uneventful.
authors.affiliation: Department of Cardiovascular Surgery Heart Center, University of Freiburg, Freiburg, Germany. Electronic address: clarence.pingpoh@universitaets-herzzentrum.de.
authors.forename: Clarence
authors.initials: C
authors.lastname: Pingpoh
authors.affiliation: Section of Cardiovascular Radiology, Department of Radiology, University Hospital, Freiburg, Germany.
authors.forename: Gregor
authors.initials: G
authors.lastname: Pache
authors.affiliation: Department of Cardiovascular Surgery Heart Center, University of Freiburg, Freiburg, Germany.
authors.forename: Diab
authors.initials: D
authors.lastname: Nawras
authors.affiliation: Department of Cardiovascular Surgery Heart Center, University of Freiburg, Freiburg, Germany.
authors.forename: Ludwig
authors.initials: L
authors.lastname: Guenkel
authors.affiliation: Department of Cardiovascular Surgery Heart Center, University of Freiburg, Freiburg, Germany.
authors.forename: Kueri
authors.initials: K
authors.lastname: Sami
authors.affiliation: Department of Cardiovascular Surgery Heart Center, University of Freiburg, Freiburg, Germany.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Zeh
authors.affiliation: Department of Cardiovascular Surgery Heart Center, University of Freiburg, Freiburg, Germany.
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Zimmer
authors.affiliation: Department of Cardiology Heart Center, University of Freiburg, Freiburg, Germany.
authors.forename: Nikolaus
authors.initials: N
authors.lastname: Jander
authors.affiliation: Department of Cardiovascular Surgery Heart Center, University of Freiburg, Freiburg, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Siepe
authors.affiliation: Department of Cardiovascular Surgery Heart Center, University of Freiburg, Freiburg, Germany.
authors.forename: Friedhelm
authors.initials: F
authors.lastname: Beyersdorf
mesh_terms: D000368:Aged; D001021:Aortic Valve; D002404:Catheterization; D006349:Heart Valve Diseases / Q000209:etiology*; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects* / Q000379:methods*; D006801:Humans; D008297:Male; D013927:Thrombosis / Q000209:etiology*; D013997:Time Factors