Study Highlights AED Maintenance Longevity and Risk Strategies

Cardiac arrest doesn't announce its arrival. In those crucial moments when a life hangs in the balance, an automated external defibrillator (AED) can be the difference between survival and tragedy. But this life-saving device is only as reliable as its maintenance.

Unlike food or medicine, AEDs don't come with a single expiration date. These sophisticated devices have a lifespan typically ranging from 10 to 15 years, but their effectiveness depends entirely on properly maintained components. Consider these critical factors:

• Battery life: Typically lasts 2-5 years but can fail unexpectedly
• Electrode pads: Usually expire within 2-5 years
• Environmental factors: Temperature extremes and humidity accelerate deterioration

An AED's battery is its lifeline. Manufacturers specify expiration dates, but like all batteries, they can fail prematurely. Regular monthly checks are essential, including:

• Verifying the battery indicator status
• Monitoring for warning alerts
• Recording replacement dates
• Using manufacturer-approved replacements

Expired electrode pads present a dual threat: diminished adhesive quality reduces skin contact, while dried conductive gel impairs electrical transmission. Regular inspection should include:

• Checking expiration dates monthly
• Inspecting gel integrity through packaging
• Ensuring proper storage conditions

While AEDs perform automatic self-tests, comprehensive maintenance requires human oversight. A robust maintenance program should include:

• Weekly visual inspections of status indicators
• Monthly functional checks of all components
• Annual professional servicing
• Detailed maintenance logs

Effective AED management extends beyond immediate maintenance. Organizations should consider:

• Warranty periods (typically 8 years for new devices)
• Replacement planning for aging units
• Proper disposal procedures for expired components
• Staff training and certification updates

The sobering reality is clear: an unmaintained AED provides false security. Regular, thorough maintenance isn't just procedure—it's a moral obligation to those whose lives may one day depend on this technology. In emergency medicine, preparedness isn't optional; it's the foundation of every successful resuscitation.