8 doctors weighed in:

Is there brain function during a cardiac arrest?

8 doctors weighed in
Dr. Gutti Rao
Internal Medicine - Hospital-based practice
3 doctors agree

In brief: No

Cardiac arrest means- heart not beating, hence no blood flow/ circulation- brain does not function when there is no blood supply.

In brief: No

Cardiac arrest means- heart not beating, hence no blood flow/ circulation- brain does not function when there is no blood supply.
Dr. Gutti Rao
Dr. Gutti Rao
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Dr. Latisha Smith
Wound care
2 doctors agree

In brief: For a brief time

When the heart stops circulating blood to the brain the functions of brain cease after about 5 minutes.
If CPR is performed the brain function can return. However prolonged CPR may not get enough blood to brain to prevent brain damage even if heart recovers.

In brief: For a brief time

When the heart stops circulating blood to the brain the functions of brain cease after about 5 minutes.
If CPR is performed the brain function can return. However prolonged CPR may not get enough blood to brain to prevent brain damage even if heart recovers.
Dr. Latisha Smith
Dr. Latisha Smith
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Dr. Dennis Clifford
Internal Medicine - Pulmonary Critical Care

In brief: Initially yes

The brain is highly reliant on adequate blood flow and oxygen so the longer there is a cardiac arrest the more likely permanent brain damage will occur. The point of doing CPR is to maintain at least some flow to the brain that hopefully will allow recovery when the heart performance can be re-established.

In brief: Initially yes

The brain is highly reliant on adequate blood flow and oxygen so the longer there is a cardiac arrest the more likely permanent brain damage will occur. The point of doing CPR is to maintain at least some flow to the brain that hopefully will allow recovery when the heart performance can be re-established.
Dr. Dennis Clifford
Dr. Dennis Clifford
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