Stentless valve dehiscence
نویسندگان
چکیده
منابع مشابه
Stentless Aortic Valve/Root Replacement
In-vitro, stentless valves have a larger effective orifice area than their stented counterparts. This is best exemplified by the fact that a 25-mm Mosaic valve, which is stented, is manufactured using a 23-mm Freestyle stentless valve. So, in order to end-up with similar effective orifice areas when implanting a stentless valve or a stented valve in the same size left ventricular outflow tract,...
متن کاملThe Freedom SOLO bovine pericardial stentless valve
License. The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. Permissions beyond the scope of the License are administered by Dove Medical Press Limited. Information on how to request permission may be f...
متن کاملStentless aortic valve replacement: an update
Although porcine aortic valves or pericardial tissue mounted on a stent have made implantation techniques easier, these valves sacrifice orifice area and increase stress at the attachment of the stent, which causes primary tissue failure. Optimizing hemodynamics to prevent patient-prosthetic mismatch and improve durability, stentless bioprostheses use was revived in the early 1990s. The purpose...
متن کاملMidterm results after stentless mitral valve replacement.
BACKGROUND To analyze the midterm clinical results after stentless mitral valve (SMV) replacement. METHODS AND RESULTS Fifty one patients (68.3+/-8.4 years, 35 female) with severe mitral valve disease (stenosis 25, incompetence 17, mixed lesion 9) received a chordally supported SMV (Quattro, St. Jude Medical Inc.) since August 1997. Preoperative New York Heart Association class was 3.1+/-0.6;...
متن کاملA new equine pericardial stentless valve.
OBJECTIVE Small aortic valve replacement remains a challenging hemodynamic problem. A new bioprosthesis (3F Therapeutics, Lake Forest, Calif) was designed to further improve the hemodynamic performance currently achieved with stentless bioprostheses. This valve consists of a tubular structure assembled from 3 equal sections of equine pericardial material, with virtually no foreign material exce...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 2008
ISSN: 0022-5223
DOI: 10.1016/j.jtcvs.2008.02.021