Document Detail

Wear in Björk-Shiley heart valve prostheses recovered at necropsy or operation.
MedLine Citation:
PMID:  7366236     Owner:  NLM     Status:  MEDLINE    
Thirteen Björk-Shiley prostheses, in situ for up to 27 months, were examined for wear. The discs showed "burnish marks" which did not erode the surface or "wear marks" which did. The metal cages were worn on the "arms" of the inlet strut or at the "hook" of the outlet strut, with metal wear presenting as scored areas or as beveling. This wear is minor and comparable to that seen following accelerated cycle testing in vitro. It is unlikely to seriously affect prosthesis function in the normal lifetime of an individual, but metal wear might cause disc flutter and change auscultatory findings associated with a prosthesis.
M D Silver
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of thoracic and cardiovascular surgery     Volume:  79     ISSN:  0022-5223     ISO Abbreviation:  J. Thorac. Cardiovasc. Surg.     Publication Date:  1980 May 
Date Detail:
Created Date:  1980-06-16     Completed Date:  1980-06-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0376343     Medline TA:  J Thorac Cardiovasc Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  693-9     Citation Subset:  AIM; IM    
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MeSH Terms
Heart Valve Prosthesis*
Postoperative Complications / pathology
Prosthesis Design*

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

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