Hematological Parameters Improve Prediction of Mortality and Secondary Adverse Events in Coronary Angiography

Crystel M Gijsberts1, Hester M den Ruijter, Dominique P V de Kleijn

  • 1From the Experimental Cardiology Laboratory, University Medical Center Utrecht (CMG, HMDR, DPVDK, GP, IEH); ICIN-Netherlands Heart Institute, Utrecht, The Netherlands (CMG, DPVDK); Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore (DPVDK); Cardiovascular Research Institute (CVRI), National University Heart Centre (NUHCS), National University Health System, Singapore, Singapore (DPVDK); Department of Clinical Chemistry and Hematology (AH, MJTB, RHAVW, WWVS, IEH); Department of Cardiology, University Medical Center Utrecht (FWA, MV); Durrer Center for Cardiogenetic Research, ICIN-Netherlands Heart Institute, Utrecht, The Netherlands (FWA); and Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, UK (FWA).

Medicine
|November 13, 2015
PubMed

Insights

Hematological parameters significantly improve prediction of secondary cardiovascular events in coronary angiography patients. Red cell distribution width (RDW) was a key predictor, aiding in identifying high-risk individuals for better clinical decisions.

Area of Science:

  • Cardiology
  • Hematology
  • Predictive Analytics

Background:

  • Predicting primary cardiovascular events is established, but secondary event prediction post-coronary artery disease (CAD) requires enhanced methods.
  • Traditional risk scores need augmentation for accurate prognostication in patients with existing CAD.

Purpose of the Study:

  • To evaluate the predictive value of readily available hematological parameters for secondary cardiovascular events in coronary angiography patients.
  • To assess the incremental predictive improvement offered by hematological parameters over traditional risk factors.

Main Methods:

  • A cohort of 1760 coronary angiography patients was analyzed using data from the Utrecht Patient Oriented Database (UPOD).
  • Backward stepwise multivariable Cox regression was employed to identify predictive hematological parameters.
  • Continuous net reclassification improvement (cNRI) and integrated discrimination improvement (IDI) were calculated to quantify prediction enhancement.

Main Results:

  • Panels of 3-8 hematological parameters significantly improved the prediction of death and major adverse cardiovascular events (MACE).
  • Integrated discrimination improvement (IDI) ranged from 0.02 to 0.07 (P < 0.001), and continuous net reclassification improvement (cNRI) ranged from 0.11 to 0.40.
  • Red cell distribution width (RDW) was frequently identified in predictive panels, with a multivariable adjusted hazard ratio of 1.19 (P < 0.001) per 1 SD increase for MACE.

Conclusions:

  • Routinely measured hematological parameters significantly enhance the prediction of mortality and adverse events in patients undergoing coronary angiography.
  • Incorporating these parameters, particularly RDW, can improve the identification of high-risk patients, informing clinical decision-making.

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