7 doctors weighed in:

What is cough syncope?

7 doctors weighed in
Dr. E. rawson Griffin iii
Family Medicine
5 doctors agree

In brief: Yes

Cough syncope is passing out in relation to coughing.
It is caused by a drop in blood pressure which is caused by the cough stimulating the vagus nerve which leads to the loss in blood pressure. It is the same mechanism as the common "fainting spell" some people have.

In brief: Yes

Cough syncope is passing out in relation to coughing.
It is caused by a drop in blood pressure which is caused by the cough stimulating the vagus nerve which leads to the loss in blood pressure. It is the same mechanism as the common "fainting spell" some people have.
Dr. E. rawson Griffin iii
Dr. E. rawson Griffin iii
Thank
Dr. Gary Ritholz
Anesthesiology

In brief: Most common cause

Cough causes an increase in chest pressure.
This causes a pressure increase in the skull. High chest pressure decreases venous blood return and cardiac output. Increased chest pressure is sent to the circulation, causing a reflex-vasodilatation. The combination of increased pressure in the skull and the lowered arterial pressure results in a perfusion standstill in the brain resulting in feinting.

In brief: Most common cause

Cough causes an increase in chest pressure.
This causes a pressure increase in the skull. High chest pressure decreases venous blood return and cardiac output. Increased chest pressure is sent to the circulation, causing a reflex-vasodilatation. The combination of increased pressure in the skull and the lowered arterial pressure results in a perfusion standstill in the brain resulting in feinting.
Dr. Gary Ritholz
Dr. Gary Ritholz
Thank
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