Are electronic cardiac devices still evolving?

Area of Science:

• Biomedical Engineering
• Cardiology
• Medical Devices

Background:

• Cardiac implantable electronic devices (CIEDs) were initially developed to manage heart rate issues due to natural pacemaker failure or conduction blocks.
• Over four decades, pacemakers have evolved into programmable devices offering patient-specific pacing modes and addressing various clinical needs like arrhythmias, cardioversion/defibrillation, and cardiac resynchronization therapy.

Purpose of the Study:

• To review significant advancements and challenges in implantable cardiac devices over the past year.
• To highlight key technological progress and emerging trends in the field.

Main Methods:

• Review of technological progress in electrodes, connectors, diagnostic algorithms, and therapeutic functions of cardiac implants.
• Description of recent innovations including subcutaneous implants, leadless pacing, quadripolar leads, and new hemodynamic management sensors/algorithms.

Main Results:

• Significant progress includes device miniaturization, extended longevity, efficient pacing, multisite and leadless pacing capabilities, and enhanced recognition of tachycardias for timely therapy.
• Introduction of subcutaneous implants, novel stimulation modes (leadless, ultrasound), quadripolar leads, and advanced sensors/algorithms for hemodynamic management.

Conclusions:

• Key technological improvements in implantable cardiac devices have been identified.
• Future directions include remote patient monitoring and neuromodulation for heart failure treatment, indicating ongoing innovation in cardiac care.