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Once ECPR was routinely instituted at the Children’s Hospital of Philadelphia , patients were rarely placed on pump in less than 30 minutes and often as long as 90 minutes after cardiac arrest. Survival in these cases was better than ACLS/CPR. The survival rate was unrelated to the duration of CPR.

Perfusion Theory is an educational platform for the Oxygen Pressure Field Theory (OPFT). August Krogh’s theoretical concept of the oxygen pressure field is explained and then applied to clinical applications in perfusion practice.