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Related Experiment Videos

Cardiac resynchronization--a heart failure perspective.

Dee Ann Rivera1, Michael R Bristow

  • 1Division of Cardiology, University of Colorado HSC, Denver, Colorado 80262, USA.

Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
|November 9, 2005
PubMed
Summary

New heart failure treatments, including biventricular pacing and implantable cardioverter-defibrillators (ICDs), significantly improve outcomes and reduce mortality in advanced heart failure patients. Device and drug therapies offer additive benefits.

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Area of Science:

  • Cardiology
  • Medical Devices
  • Pharmacology

Background:

  • Heart failure pharmacologic therapy has reduced mortality by 30-40% in dilated cardiomyopathy, but progress has slowed due to the success of neurohormonal inhibitors.
  • New therapies must be developed against the backdrop of maximal neurohormonal inhibition.
  • Electrophysiologic device trials demonstrate that new heart failure therapies can still be developed.

Purpose of the Study:

  • To evaluate the impact of cardiac resynchronization therapy (CRT) and implantable cardioverter-defibrillators (ICDs) on major clinical outcomes in advanced heart failure patients.
  • To assess the additive benefits of device/drug therapy in heart failure management.

Main Methods:

  • Analysis of data from electrophysiologic device trials, specifically COMPANION and CARE-HF.

Related Experiment Videos

  • Focus on advanced heart failure patients with mechanical intraventricular dyssynchrony indicated by increased QRS duration.
  • Evaluation of biventricular pacing (CRT) and ICD implantation.

    • Main Results:

    • Cardiac resynchronization therapy (CRT) demonstrated significant improvement in major clinical outcomes, including mortality, in advanced heart failure patients with intraventricular dyssynchrony.
    • The addition of an implantable cardioverter-defibrillator (ICD) further reduced mortality by decreasing sudden cardiac death.
    • Device/drug therapy proved to be additive in heart failure treatment.

    Conclusions:

    • Device/drug therapy represents a significant advancement in heart failure management.
    • These findings herald a new era of multi-modality therapeutic approaches for heart failure.
    • CRT and ICDs are crucial components in managing advanced heart failure, particularly in patients with QRS prolongation.