4 doctors weighed in:
What? Causes ?Sinus arrhythmia?
4 doctors weighed in

Dr. Robert Greer
Family Medicine
2 doctors agree
In brief: Atherosclerosis
The "pacemaker", the sino-atrial node, in the upper chambers of the heart (atria) lose control and other sites fire leading to irregular heartbeat.
It is dangerous because it can cause turbulence in the blood flow leading to a clot.Other causes exist such as hyperthyroidism but usually decreased blood flow is the cause.

In brief: Atherosclerosis
The "pacemaker", the sino-atrial node, in the upper chambers of the heart (atria) lose control and other sites fire leading to irregular heartbeat.
It is dangerous because it can cause turbulence in the blood flow leading to a clot.Other causes exist such as hyperthyroidism but usually decreased blood flow is the cause.
Dr. Robert Greer
Dr. Robert Greer
Thank
Dr. Steven Charlap
Holistic Medicine
1 doctor agrees
In brief: Sinus node
Extra tissue around the sinus node or other abnormality causes the sinus node to contract abnormally.
The sinus node s where the electrical signal for the heart to contract originates.

In brief: Sinus node
Extra tissue around the sinus node or other abnormality causes the sinus node to contract abnormally.
The sinus node s where the electrical signal for the heart to contract originates.
Dr. Steven Charlap
Dr. Steven Charlap
Thank
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Dr. Umesh Patel
Board Certified, Internal Medicine - Cardiology
38 years in practice
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