Document Detail

Doppler echocardiography of 240 normal Carpentier-Edwards Duraflex porcine mitral bioprostheses: a comprehensive assessment including time velocity integral ratio and prosthesis performance index.
MedLine Citation:
PMID:  19269780     Owner:  NLM     Status:  MEDLINE    
Normal Doppler-derived echocardiographic data for Carpentier-Edwards Duraflex (Edwards Lifesciences, Irvine, CA) porcine bioprosthesis function in the mitral position are limited to 2 small series that did not include all Doppler-derived variables. The purpose of this study was to provide a comprehensive Doppler echocardiographic assessment of normal Carpentier-Edwards Duraflex mitral bioprosthesis function in a large number of patients assessed in the early postoperative phase. All of the important Doppler-derived hemodynamic variables reported to date were used. All patients had either a mitral valve prosthesis time velocity integral to left ventricular outflow tract time velocity integral ratio < 3.9 or an E velocity < 2.8. The pressure half-time was < 130 msec in all patients. Nearly all patients (97%) had an E velocity < 2.8 msec and a mitral valve prosthesis time velocity integral to left ventricular outflow tract time velocity integral ratio < 3.9 regardless of bioprosthesis size, left ventricular function, heart rate, hemoglobin, or hematocrit. With increasing bioprosthesis size, effective orifice area significantly increased, whereas the prosthesis performance index significantly decreased.
Lori A Blauwet; Joseph F Malouf; Heidi M Connolly; David O Hodge; Katie N Evans; Regina M Herges; Thoralf M Sundt; Fletcher A Miller
Publication Detail:
Type:  Journal Article     Date:  2009-03-09
Journal Detail:
Title:  Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography     Volume:  22     ISSN:  1097-6795     ISO Abbreviation:  J Am Soc Echocardiogr     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-04-06     Completed Date:  2009-07-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8801388     Medline TA:  J Am Soc Echocardiogr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  388-93     Citation Subset:  IM    
Division of Cardiovascular Diseases, College of Medicine, Mayo Clinic, Rochester, Minnesota, USA.
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MeSH Terms
Echocardiography, Doppler / methods*
Equipment Failure Analysis / methods*
Heart Valve Prosthesis*
Image Enhancement / methods
Image Interpretation, Computer-Assisted / methods*
Mitral Valve / surgery*,  ultrasonography*
Prosthesis Implantation / methods
Reproducibility of Results
Sensitivity and Specificity
Comment In:
J Am Soc Echocardiogr. 2009 Apr;22(4):394-5   [PMID:  19345307 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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