Document Detail


Derivation and validation of a disease-specific risk score for cardiac risk stratification in chronic kidney disease.
MedLine Citation:
PMID:  16014347     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Cardiac events (CE; cardiac death, non-fatal myocardial infarction and acute coronary syndrome) are the principal causes of death in patients with chronic kidney disease (CKD). We sought to devise and validate a cardiac risk score to risk-stratify patients with CKD. METHODS: Clinical history and biochemical data were obtained in 167 CKD patients. CE were recorded over a median follow-up of 22 months. The hazard ratio (HR) of each independent variable using Cox regression analysis was used to derive a cardiac risk score for the prediction of events. The cardiac risk score was then applied to a validation population of 99 CKD patients to confirm its validity in predicting CE. RESULTS: CE occurred in 20 patients in the derivation group. The independent predictors of CE were cardiac history (HR 9.83, P = 0.001), body mass index (BMI; HR 1.15, P = 0.002), dialysis duration (HR 1.24, P = 0.004) and serum phosphate (HR 4.29, P = 0.001). The resulting cardiac risk score (range 26-67) gave an area under the receiver operating characteristic curve of 0.86. CE occurred in 25 patients in the validation group; the ROC curve area was similar (0.84, P = 0.11). An optimal cardiac risk score cut-off of 50 assigned high risk to 29% of the derivation and 35% of the validation group (P = 0.26). CE occurred in 35 and 57% of the high-risk derivation and validation groups, respectively (P = 0.09), and in 2 and 8% of the low-risk groups (P = 0.15). CONCLUSION: Application of a cardiac risk score using cardiac history, dialysis duration, BMI and phosphate identifies CKD patients at risk of future CE.
Authors:
Kirsten A Armstrong; Dhrubo J Rakhit; Colin Case; David W Johnson; Nicole M Isbel; Thomas H Marwick
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies     Date:  2005-07-12
Journal Detail:
Title:  Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association     Volume:  20     ISSN:  0931-0509     ISO Abbreviation:  Nephrol. Dial. Transplant.     Publication Date:  2005 Oct 
Date Detail:
Created Date:  2005-09-16     Completed Date:  2005-12-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8706402     Medline TA:  Nephrol Dial Transplant     Country:  England    
Other Details:
Languages:  eng     Pagination:  2097-104     Citation Subset:  IM    
Affiliation:
MBBS, University of Queensland, Department of Medicine, Princess Alexandra Hospital, Ipswich Road, Brisbane, Queensland 4102, Australia.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Cardiovascular Diseases / etiology*
Diabetic Nephropathies / complications
Female
Humans
Kidney Failure, Chronic / complications*
Male
Middle Aged
Proportional Hazards Models
Risk
Risk Factors
Sensitivity and Specificity

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


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