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Related Experiment Videos

Implantable cardioverter-defibrillators.

S L Pinski1, G J Fahy

  • 1Section of Cardiology, Rush Medical College, Rush-Presbyterian-St. Luke's Medical Center, Chicago, Illinois 60612, USA.

The American Journal of Medicine
|May 4, 1999
PubMed
Summary
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Implantable defibrillators (ICDs) are the primary treatment for dangerous heart rhythms, significantly improving survival compared to drugs. While complications exist, ICD therapy is cost-effective and its use is expanding.

Area of Science:

  • Cardiology
  • Biomedical Engineering

Background:

  • Implantable defibrillators (ICDs) are the leading treatment for life-threatening ventricular arrhythmias.
  • Current ICDs are compact, implanted similarly to pacemakers, and offer multiple pacing and shock functions.

Purpose of the Study:

  • To review the efficacy, complications, and cost-effectiveness of implantable defibrillator therapy.
  • To discuss the evolving role and future indications of ICDs in managing cardiac arrhythmias.

Main Methods:

  • Review of randomized controlled trials comparing ICDs with antiarrhythmic drugs.
  • Analysis of data on ICD complications, patient adaptation, and cost-effectiveness.

Main Results:

  • ICDs demonstrate superior survival rates in high-risk patients compared to antiarrhythmic drugs.

Related Experiment Videos

  • Complications include infection, lead failure, and inappropriate shocks; however, most patients adapt well.
  • Evidence suggests ICD therapy is cost-effective.

    • Conclusions:

    • Implantable defibrillators are a dominant and expanding therapeutic modality for ventricular arrhythmias.
    • Ongoing research aims to further define prophylactic indications and cost-effectiveness in various clinical scenarios.