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Related Experiment Videos

Inability to communicate with ICDs: an underreported failure mode.

M L Blitzer1, M A Marieb, M H Schoenfeld

  • 1Electrophysiology Service, Hospital of Saint Raphaels, New Haven, Connecticut, USA.

Pacing and Clinical Electrophysiology : PACE
|March 3, 2001
PubMed
Summary
This summary is machine-generated.

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Telemetry failure in implantable cardioverter-defibrillators (ICDs) can signal unexpected device malfunction. Two cases revealed a specific internal arcing issue causing rapid battery depletion, highlighting the need for better device monitoring systems.

Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Medical Device Technology

Background:

  • Telemetry is crucial for monitoring implantable cardioverter-defibrillators (ICDs).
  • Inability to perform telemetry can stem from various causes, necessitating thorough investigation.
  • Unexpected device failure poses significant risks to patient safety.

Observation:

  • Three cases of ICD telemetry failure were identified.
  • Two cases shared an identical failure mechanism involving internal arcing within the high-voltage hybrid.
  • This arcing led to a high-current state and rapid, complete battery depletion.

Findings:

  • The identified failure mechanism was not previously alerted by the manufacturer.
  • The arcing in the high-voltage hybrid represents a systematic device defect.

Related Experiment Videos

  • Complete battery depletion occurred rapidly due to the high-current state.

    • Implications:

    • A multicenter database for arrhythmia devices and leads is essential for timely problem detection.
    • Such a database would provide unbiased information on device performance and failures.
    • Improved post-market surveillance is needed to identify and address systematic device issues promptly.