There is no evidence of benefit pre-hospital or in children.
EMS personnel are taught to proceed with CPR when needed, unless they are absolutely certain that a qualified DNR advance directive exists for that patient.
Their combined findings were presented at the annual Maryland Medical Society meeting on September 16, 1960, in Ocean City, and gained widespread acceptance over the following decade, helped by the video and speaking tour they undertook.
It is unclear if a few minutes of CPR before defibrillation results in different outcomes than immediate defibrillation.
For CPR outside hospitals, survival varies even more across the US, from 3% in Omaha to 45% in Seattle in 2001.
Intubation: A tube inserted through the mouth or nose to open the person's airway to assist with breathing.