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Predicting 30-day mortality of aortic valve replacement by the AVR score.
MedLine Citation:
PMID:  21494889     Owner:  NLM     Status:  Publisher    
OBJECTIVES: The objective of this study is to develop a simple risk score to predict 30-day mortality of aortic valve replacement (AVR). METHODS: In a development set of 673 consecutive patients who underwent AVR between 1990 and 1993, four independent predictors for 30-day mortality were identified: body mass index (BMI) ≥30, BMI <20, previous coronary artery bypass grafting (CABG) and recent myocardial infarction. Based on these predictors, a 30-day mortality risk score-the AVR score-was developed. The AVR score was validated on a validation set of 673 consecutive patients who underwent AVR almost two decennia later in the same hospital. RESULTS: Thirty-day mortality in the development set was ≤2% in the absence of any predictor (class I, low risk), 2-5% in the solitary presence of BMI ≥30 (class II, mild risk), 5-15% in the solitary presence of previous CABG or recent myocardial infarction (class III, moderate risk), and >15% in the solitary presence of BMI <20, or any combination of BMI ≥30, previous CABG or recent myocardial infarction (class IV, high risk). The AVR score correctly predicted 30-day mortality in the validation set: observed 30-day mortality in the validation set was 2.3% in 487 class I patients, 4.4% in 137 class II patients, 13.3% in 30 class III patients and 15.8% in 19 class IV patients. CONCLUSIONS: The AVR score is a simple risk score validated to predict 30-day mortality of AVR.
B M Swinkels; F E E Vermeulen; J C Kelder; W J van Boven; H W M Plokker; J M Ten Berg
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-15
Journal Detail:
Title:  Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation     Volume:  -     ISSN:  1876-6250     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-4-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101095458     Medline TA:  Neth Heart J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Cardiology, St. Antonius Hospital, P.O. Box 2500, 3435 CM, Nieuwegein, the Netherlands,
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