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Related Experiment Videos

[Atrial defibrillator]

W Jung1, B Lüderitz

  • 1Medizinische Universitätsklinik und Poliklinik Bonn.

Herz
|August 5, 1998
PubMed
Summary
This summary is machine-generated.

An implantable atrial defibrillator (IAD) offers a safe and effective alternative for treating atrial fibrillation (AF), especially when external cardioversion fails. This device demonstrates high accuracy in AF detection and conversion, with minimal adverse events.

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Area of Science:

  • Cardiology
  • Biomedical Engineering

Context:

  • Atrial fibrillation (AF) is a common arrhythmia causing significant morbidity and mortality.
  • External electrical cardioversion is effective but requires anesthesia.
  • Internal atrial defibrillation is an alternative, with implantable devices now under investigation.

Purpose:

  • To evaluate the safety and efficacy of the Metrix System, a novel stand-alone implantable atrial defibrillator (IAD).
  • To assess the device's performance in detecting and treating atrial fibrillation (AF) in a clinical trial setting.

Summary:

  • The Metrix IAD uses internal atrial defibrillation with biphasic shocks, delivered via right atrial and coronary sinus leads.
  • The system allows for programmable operating modes, R-wave synchronization, and stores electrograms.

Related Experiment Videos

  • Phase I trial data show high detection accuracy (92.3% sensitivity, 100% specificity) and effective AF conversion (96%), with a low complication rate.

    • Impact:

    • The Metrix IAD shows promise as a therapeutic option for drug-refractory, symptomatic AF patients.
    • Further research is needed to minimize patient discomfort associated with internal atrial defibrillation.
    • This technology could expand treatment options for a significant patient population suffering from AF.