[Clinical aspects of implantable defibrillators: indication]

Area of Science:

• Cardiology
• Biomedical Engineering
• Medical Devices

Background:

• Technological advancements have led to nearly ideal implantable defibrillators.
• Fourth-generation devices feature multiprogrammability, antitachycardia/antibradycardia functions, and biphasic shocks.
• Endocavitary implantation is now feasible for most patients.

Purpose of the Study:

• To review the characteristics and selection criteria for modern implantable defibrillators.
• To discuss the role of implantable defibrillators in managing severe ventricular arrhythmias.
• To highlight factors influencing the choice of defibrillator therapy.

Main Methods:

• Review of current literature on implantable defibrillator technology.
• Analysis of technical specifications and clinical applications of fourth-generation devices.
• Discussion of patient-specific factors for defibrillator selection.

Main Results:

• Implantable defibrillators are increasingly sophisticated, smaller, and feature improved telemetry.
• Biphasic shocks and multiprogrammability enhance therapeutic efficacy.
• Device selection depends on patient needs and specific clinical/paraclinical factors.

Conclusions:

• Careful patient and device assessment is crucial for successful implantable defibrillator therapy.
• Individualized treatment strategies are necessary given the range of ventricular arrhythmia management options.
• Further prospective trials are needed to solidify the role of defibrillators in specific patient groups.