8 doctors weighed in:

How does a pacemaker work?

8 doctors weighed in
Dr. Warren Foster
Cardiology - Cardiac Electrophysiology
2 doctors agree

In brief: Artificial pacemaker

Artificial (implantable) pacemakers are mostly regulated by a sensor that recognizes motion.
It's similar to the sensor that changes your phone/ipads display from portrait to landscape, based on the direction of the device. There are other sensors, such as ones that measure the density of blood in the heart and chest motion (simulating breathing). Get your routine pacemaker maintenance checks.

In brief: Artificial pacemaker

Artificial (implantable) pacemakers are mostly regulated by a sensor that recognizes motion.
It's similar to the sensor that changes your phone/ipads display from portrait to landscape, based on the direction of the device. There are other sensors, such as ones that measure the density of blood in the heart and chest motion (simulating breathing). Get your routine pacemaker maintenance checks.
Dr. Warren Foster
Dr. Warren Foster
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Dr. Calvin Weisberger
Internal Medicine - Cardiology
1 doctor agrees

In brief: Pacemaker

A pacemaker is an electronic device which uses a lead as an antenna to sense the heart's electrical activity.
It uses the same lead(s) to deliver a small electrical impulse to the heart to make it contract if the heart isn't going as fast as the device was programmed to maintain. Pacemakers both sense heart activity and pace it to produce activity. They maintain heart rate. Other things too....

In brief: Pacemaker

A pacemaker is an electronic device which uses a lead as an antenna to sense the heart's electrical activity.
It uses the same lead(s) to deliver a small electrical impulse to the heart to make it contract if the heart isn't going as fast as the device was programmed to maintain. Pacemakers both sense heart activity and pace it to produce activity. They maintain heart rate. Other things too....
Dr. Calvin Weisberger
Dr. Calvin Weisberger
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Dr. Ramin Rafie
Internal Medicine - Geriatrics
1 doctor agrees

In brief: Threshold

A threshold level is set by the cardiologist.
Once the heart rate goes below that level such as 55 the peacemaker kicks in.

In brief: Threshold

A threshold level is set by the cardiologist.
Once the heart rate goes below that level such as 55 the peacemaker kicks in.
Dr. Ramin Rafie
Dr. Ramin Rafie
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1 comment
Dr. Mary Callahan
pacemakers work by keeping the heart rate above a certain level. They can either pace if there is no beat detected, if there is a beat detected then they sense the beat and inhibit, or don't fire. They can also sense activity and increase heart rate if needed for activity. Most often they are implanted because of heart block or a failure to conduct beats.
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Dr. Umesh Patel
Board Certified, Internal Medicine
39 years in practice
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