Implantable cardioverter-defibrillators: implications for the nonelectrophysiologist

Area of Science:

• Cardiology
• Medical Devices
• Electrophysiology

Background:

• Implantable defibrillator (ICD) therapy is increasingly common and complex.
• Non-electrophysiologist physicians frequently encounter patients with ICDs in clinical settings.

Purpose of the Study:

• To review clinical scenarios involving non-electrophysiologists and patients with implantable defibrillators.
• To provide essential management guidelines for common ICD-related issues.

Main Methods:

• Review of peer-reviewed original articles and relevant reviews on implantable defibrillator therapy.
• Synthesis of information pertinent to the general clinician's interaction with ICD patients.

Main Results:

• ICD function can be temporarily altered with magnets; procedures like surgery and radiotherapy require deactivation/reactivation.
• Magnetic resonance imaging is generally contraindicated; standard resuscitation is advised.
• Multiple ICD shocks indicate serious issues requiring prompt evaluation and potential deactivation.
• ICD system infections are critical; antibiotic therapy is essential.
• Psychological adjustment disorders related to ICDs are not uncommon.

Conclusions:

• A foundational understanding of ICDs is crucial for most physicians.
• Skills in short-term management of ICD-related problems are valuable.
• These guidelines aid in delivering optimal care when specialized resources are limited.