Document Detail


Pitfalls in Interpreting Bioprosthetic Aortic Valve Pressure Gradients: A Cautionary Tale!
MedLine Citation:
PMID:  22747659     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
High transvalvular pressure gradients following aortic valve replacement can be caused by several possible mechanisms. We present the case of an elderly woman with an elevated pressure gradient across an aortic valve bioprosthesis in the setting of complete heart block. After consideration of the presence of complete heart block, the hemodynamic profile of the specific prosthesis, and patient-prosthesis mismatch, only a mild degree of stenosis was found to be attributable to degeneration of the prosthesis. There is no literature quantifying the hemodynamic effect of complete heart block on the pressure gradients across bioprosthetic aortic valves. In the case presented, the transvalvular peak and mean pressure gradients were reduced by 41% and 39%, respectively, following treatment of complete heart block by insertion of a permanent pacemaker. (Echocardiography ****;**:E1-E3).
Authors:
Stefan Buchholz; Daniel Robaei; Neil H Jacobs; Michael P Feneley
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-2
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  -     ISSN:  1540-8175     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012, Wiley Periodicals, Inc.
Affiliation:
Mackay Base Hospital, Mackay, Queensland, Australia Department of Cardiology, Prince of Wales Hospital, Sydney, New South Wales, Australia Cardiac Investigations Unit, St Vincent's Clinic, Sydney, Australia.
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