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How does an implantable cardioverter defibrillator function?

2 doctors weighed in
Dr. Calvin Weisberger
Internal Medicine - Cardiology

In brief: Defibrillators

The device has an antenna that monitors the electrical activity of the heart.
If the recorded parameters fit those of ventricular tachycardia or ventricular fibrillation, the device will charge its capacitor and deliver programmed shocks to try and return the rhythm to normal. It is a computer and programmed to do its functions. They are very effective but not perfect.

In brief: Defibrillators

The device has an antenna that monitors the electrical activity of the heart.
If the recorded parameters fit those of ventricular tachycardia or ventricular fibrillation, the device will charge its capacitor and deliver programmed shocks to try and return the rhythm to normal. It is a computer and programmed to do its functions. They are very effective but not perfect.
Dr. Calvin Weisberger
Dr. Calvin Weisberger
Thank
Dr. Charles Jost
Internal Medicine - Cardiology

In brief: Detection

It detects fast heart beats above a threshold set by the cardiologist and programmed into the defibrillator and delivers a shock or atp - pacemaker override, depending on the heart rate.
It will deliver subsequent shocks depending on the heart rate it detects.

In brief: Detection

It detects fast heart beats above a threshold set by the cardiologist and programmed into the defibrillator and delivers a shock or atp - pacemaker override, depending on the heart rate.
It will deliver subsequent shocks depending on the heart rate it detects.
Dr. Charles Jost
Dr. Charles Jost
Thank
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