7 doctors weighed in:

What is the most common cause of bradycardia?

7 doctors weighed in
Dr. Edward Hoffer
Internal Medicine - Cardiology
4 doctors agree

In brief: Medication

A slow heart rate can be normal in fit individuals at rest.
Many medications, notably beta blockers, slow the heart rate. A slow heart rate can also be due to disease of the av node, which conducts impulses from the atria to the ventricles. This can be due to scarring from heart attack or aging, and is seen in some infections such as lyme disease and chagas disease.

In brief: Medication

A slow heart rate can be normal in fit individuals at rest.
Many medications, notably beta blockers, slow the heart rate. A slow heart rate can also be due to disease of the av node, which conducts impulses from the atria to the ventricles. This can be due to scarring from heart attack or aging, and is seen in some infections such as lyme disease and chagas disease.
Dr. Edward Hoffer
Dr. Edward Hoffer
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1 comment
Dr. Michael Fenster
Depends. Slow heart rates, or bradycardia can vary in causality by the age group. For example, in younger person and those more fit it may simply be from being in good physical condition. In the very elderly it may represent underlying conduction system abnormalities. In other groups medications may play a role.
Dr. Daniel Zanger
Internal Medicine - Cardiology
1 doctor agrees

In brief: Bradycardia

Sinus bradycardia.

In brief: Bradycardia

Sinus bradycardia.
Dr. Daniel Zanger
Dr. Daniel Zanger
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