| Trans-catheter valve-in-valve implantation: in vitro hydrodynamic performance of the SAPIEN+cloth trans-catheter heart valve in the Carpentier-Edwards Perimount valves. | |
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MedLine Citation:
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PMID: 21466959 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Objective: Since 1990, over 1.2 million bioprosthetic valves were implanted for aortic stenosis. Given the risk of structural valve deterioration, the need to redo AVR will likely rise. Recently, SAPIEN valve-in-valve (ViV) has been advocated. We evaluated the in vitro hydrodynamic performance of the Edwards SAPIEN+cloth trans-catheter heart valve (THV) implanted within the Carpentier-Edwards Perimount (CEP) valve. Methods: Both 23- and 26-mm Edwards SAPIEN+cloth THVs (Model 9000MIS) were deployed within 23- or 25-mm (1) CEP aortic bioprosthesis (Models 2700 and 2800), (2) CEP Magna (Model 3000), and (3) CEP plus pericardial mitral (Model 6900P), respectively. Tests included: (1) mean pressure gradient; (2) pulsatile effective orifice area (EOA); (3) regurgitant volume; (d) migration during accelerated wear testing (AWT; 20 million cycles @ 200mmHg); and (5) valve dislodgement pressure. Values tested per ISO 5840:2005 valve standards; mean±SD. Results: Post-deployment pressure gradient across the combined valves ranges from 2.8±0.3 to 8.7±0.5mmHg. The post-deployment EOA of the valves ranged from 1.7±0.1 to 2.0±0.0cm(2). Pulsatile flow regurgitant volume ranged from 2.1±0.7 to 7.6±1.2ml. Migration during the AWT ranged from 0.01±0.27 to 1.61±0.92mm. Pressure increase during the tests to quantify migration ranged from >400 to >800mmHg. Conclusions: Compared with the rigorous ISO 5840:2500 valve standards, the Edwards SAPIEN+cloth THV implanted ViV within the CEP valve demonstrated excellent hydrodynamic performance. |
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Authors:
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Thomas Walther; Mark M Dehdashtian; Rajesh Khanna; Ernest Young; Peter J Goldbrunner; Walter Lee |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-3 |
Journal Detail:
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Title: European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery Volume: - ISSN: 1873-734X ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-6 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8804069 Medline TA: Eur J Cardiothorac Surg Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 European Association for Cardio-Thoracic Surgery. Published by Elsevier B.V. All rights reserved. |
Affiliation:
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Kerckhoff Klinik, Benekestrasse 2-8, 61231 Bad Nauheim, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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