CPR, or cardiopulmonary resuscitation, is a lifesaving technique used to revive someone whose heart has stopped beating or breathing has stopped. CPR can help restore circulation of oxygen-rich blood to the brain and other vital organs until medical help arrives. The longer a person goes without oxygen to the brain, the greater the risk for permanent brain damage or death.
How Long Can CPR be Performed Before Brain Damage Occurs?
The length of time that CPR can be performed before brain damage occurs depends on several factors, including the person's age and medical condition. In general, the longer CPR is performed, the greater the risk for brain damage. Most experts recommend that CPR should be administered for no more than 15–20 minutes before brain damage becomes a possibility.
Factors Affecting Time Before Brain Damage Occurs
Age: Young children and infants may be able to tolerate longer periods of CPR before brain damage occurs, while adults may experience brain damage more quickly.
Medical Condition: People with underlying medical conditions, such as diabetes, heart disease, or recent stroke, may experience brain damage more quickly than people without these conditions.
Airway Obstruction: If the person's airway is obstructed, CPR may need to be performed for longer periods of time before brain damage occurs.
When to Stop CPR
It is important to remember that CPR should not be continued indefinitely. If the person is not responding to CPR, medical help should be sought as soon as possible. It is also important to remember that brain damage is not an immediate concern in such cases. The longer CPR is performed, the greater the risk for serious brain damage or death.