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Published on: February 17, 2018
An Appraisal of Biomarker-Based Risk-Scoring Models in Chronic Heart Failure: Which One Is Best?
Barbara S Doumouras1, Douglas S Lee2, Wayne C Levy3
1Heart Failure and Transplant Program, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada. barbara.doumouras@mail.utoronto.ca.
Insights
Biomarker-based risk models in chronic heart failure show variable performance. External validation is crucial for assessing the quality and clinical relevance of these heart failure prediction tools.
Area of Science:
- Cardiology
- Biomarkers
- Predictive Modeling
Background:
- Biomarkers offer early insights into pathological processes in chronic heart failure.
- Existing prediction models for heart failure have demonstrated inconsistent discrimination and calibration.
Purpose of the Study:
- To review externally validated biomarker-based risk models in chronic heart failure.
- To assess the quality and clinical relevance of these models for patient care.
Main Methods:
- Review of 10 externally validated prediction models for chronic heart failure.
- Analysis of models incorporating at least one biomarker.
Main Results:
- Few models exhibited adequate discrimination and calibration.
- The additional predictive value of biomarkers was inconsistently assessed in validation studies.
Conclusions:
- Biomarkers are essential for improving prediction model performance in heart failure.
- Further research is needed to evaluate model performance in contemporary patient populations.
Purpose Of Review:
While prediction models incorporating biomarkers are used in heart failure, these have shown wide-ranging discrimination and calibration. This review will discuss externally validated biomarker-based risk models in chronic heart failure patients assessing their quality and relevance to clinical practice.
Recent Findings:
Biomarkers may help in determining prognosis in chronic heart failure patients as they reflect early pathologic processes, even before symptoms or worsening disease. We present the characteristics and describe the performance of 10 externally validated prediction models including at least one biomarker among their predictive factors. Very few models report adequate discrimination and calibration. Some studies evaluated the additional predictive value of adding a biomarker to a model. However, these have not been routinely assessed in subsequent validation studies. New and existing prediction models should include biomarkers, which improve model performance. Ongoing research is needed to assess the performance of models in contemporary patients.
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