What Would Normal Blood
Flow Do for the Resuscitation of Cardiac Arrest Patients?
Effective circulation is
critical to the neurologically intact survival of the SCA patient. While
defibrillation is the definitive treatment for ventricular fibrillation
(VF) and ventricular tachycardia (\T). it alone does not represent the
total solution for resuscitation of victims of SCA.
More treatment options: a shock is only indicated <50% of the time in
both the Hospital and Emergency Medical Service (EMS) environments
• Hospital: 25% VF or \VT
• EMS: 41% VF or \VT
Providing normal blood
flow, in conjunction with oxygen and drugs, is the primary treatment
option for pulseless electrical activity (PEA) and asystole.
Enhanced defibrillation: "it's about more time"
It is well established
that the survival from SCA caused by VF rapidly diminishes in
correlation with the amount of time it takes to deliver the first
defibrillation shock. After 6 minutes, survival is unlikely.
A growing body of evidence
suggests that beyond a delay of about 3 minutes. re-establishing good
blood flow before defibrillation may actually improve the efficacy of
the electrical countershock–in effect "priming the pump" to allow the
heart to better respond.
Better circulation
enhances the effectiveness of defibrillation.