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Echocardiography and risk prediction in advanced heart failure: incremental value over clinical markers

Syed A Agha1, Andreas P Kalogeropoulos, Jeffrey Shih

  • 1Cardiology Division, Emory University Hospital, Emory University, Atlanta, GA 30322, USA.

Journal of Cardiac Failure
|August 25, 2009
PubMed

Insights

Echocardiography significantly improves risk prediction for advanced heart failure (HF) patients when added to the Seattle Heart Failure Model (SHFM). This enhances prognostic accuracy for events like death or transplantation.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Clinical Prediction Models

Background:

  • The prognostic value of echocardiography in advanced heart failure (HF) is not well-defined.
  • Existing clinical parameters may not fully capture risk in advanced HF.

Purpose of the Study:

  • To assess the incremental value of echocardiographic parameters beyond the Seattle Heart Failure Model (SHFM) for predicting outcomes in advanced HF.
  • To determine if echocardiography improves risk stratification in patients with advanced heart failure.

Main Methods:

  • Evaluated 223 advanced HF patients on optimal medical therapy.
  • Used the Seattle Heart Failure Model (SHFM) as a reference clinical prediction tool.
  • Measured the improvement in prediction fit and discrimination by adding standard echocardiographic parameters to the SHFM.

Main Results:

  • After a median 2.4-year follow-up, 38 events (death or urgent transplant) occurred.
  • The SHFM alone had a C-statistic of 0.756.
  • Adding left ventricular end-systolic volume, stroke volume, and severe tricuspid regurgitation to the SHFM significantly improved the C-statistic to 0.866 (P=.019).

Conclusions:

  • Standard echocardiographic variables significantly enhance the risk prediction capabilities of the SHFM for advanced HF patients.
  • Echocardiography provides crucial prognostic information that improves risk stratification in advanced heart failure.
Abstract

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