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Resting and Exercise Doppler Hemodynamics: How and Why?

Shane Nanayakkara1, David M Kaye2, Thomas H Marwick3

  • 1Department of Cardiology, The Alfred, 55 Commercial Road, Melbourne, Victoria 3004, Australia; Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, Victoria 3004, Australia; Department of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia.

Heart Failure Clinics
|March 6, 2019
PubMed
Summary
This summary is machine-generated.

Assessing heart failure requires understanding exercise intolerance. Noninvasive methods like echocardiography and cardiac MRI show promise for evaluating heart function during activity, complementing invasive cardiac catheterization.

Keywords:
DiastoleExerciseHeart failureInvasivePressurePulmonary hypertensionStress testValvular heart disease

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Area of Science:

  • Cardiology
  • Cardiovascular Physiology
  • Medical Diagnostics

Background:

  • Exercise intolerance is a key symptom of heart failure.
  • Hemodynamic abnormalities in heart failure are often only apparent during physical exertion.
  • Current gold standard hemodynamic assessment via cardiac catheterization is invasive and has limitations.

Purpose of the Study:

  • To explore noninvasive methods for assessing hemodynamic function in heart failure.
  • To evaluate the potential of echocardiography and cardiac MRI in quantifying ventriculo-vascular interactions during exercise.
  • To highlight the need for standardized exercise protocols and validation of noninvasive techniques.

Main Methods:

  • Review of current literature on hemodynamic assessment in heart failure.
  • Discussion of echocardiography and cardiac MRI as noninvasive tools.
  • Analysis of exercise protocols and their heterogeneity.

Main Results:

  • Noninvasive modalities like echocardiography and cardiac MRI show potential for assessing ventriculo-vascular interactions.
  • Significant variability exists in current exercise protocols used for noninvasive testing.
  • There is a clear need for consensus on methodology and validation.

Conclusions:

  • Noninvasive assessment of ventriculo-vascular interactions is crucial for understanding exercise intolerance in heart failure.
  • Standardized protocols and validation are necessary for widespread adoption of echocardiography and cardiac MRI in clinical practice.
  • Further research is needed to refine and validate these noninvasive techniques across all heart failure types.