Document Detail

Risk factors of reoperations for prosthetic heart valve dysfunction in the ten years 1984-1993.
MedLine Citation:
PMID:  7570566     Owner:  NLM     Status:  MEDLINE    
From January 1984 to December 1993 a total of 154 patients (89 men and 85 women) required 160 reoperations for prosthetic heart valve dysfunction. Four patients required a second, two patients a third reoperation. Age was (mean +/- SD [range]) 38.8 +/- 10.2 (17 to 64) years. The primary operation was mitral valve replacement in 105 patients, aortic valve replacement in 20, and both aortic and mitral valve replacement in 29. The time interval between initial valve replacement and reoperation was 66.4 +/- 40 (3 to 288) months for the mechanical prostheses and 68.7 +/- 32 (24 to 140) months for bioprostheses; the difference was not statistically significant. Primary tissue failure was the most common cause of the reoperation for bioprostheses and valve thrombosis for mechanical prostheses. The hospital mortality rate was significantly higher in the replacement of mechanical prostheses (14/58 = 24.1% vs. 7/102 = 6.8%, p = 0.004). Low preoperative functional capacity and valve thrombosis were linked to higher mortality rates. It is discussed that monoleaflet mechanical valves yielded the highest operative mortality and that, excluding these, the risk of mortality in prosthetic valve reoperations today does not differ much from that in primary valve replacements.
E Sener; B Yamak; S F Katircioğlu; G Ozerdem; H Karagöz; O Taşdemir; K Bayazit
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Thoracic and cardiovascular surgeon     Volume:  43     ISSN:  0171-6425     ISO Abbreviation:  Thorac Cardiovasc Surg     Publication Date:  1995 Jun 
Date Detail:
Created Date:  1995-11-22     Completed Date:  1995-11-22     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7903387     Medline TA:  Thorac Cardiovasc Surg     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  148-52     Citation Subset:  IM    
Department of Cardiovascular Surgery, Türkiye Yüksek Ihtisas Hospital, Ankara, Turkey.
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MeSH Terms
Aortic Valve
Bioprosthesis* / mortality,  statistics & numerical data
Heart Valve Prosthesis* / mortality,  statistics & numerical data
Hospital Mortality
Mitral Valve
Postoperative Complications / epidemiology
Prosthesis Design
Prosthesis Failure
Reoperation / mortality,  statistics & numerical data
Retrospective Studies
Risk Factors
Time Factors

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

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