The rates of Pulseless Electrical Activity (PEA) in out of hospital cardiac arrests (OHCA) is rising, however survival from PEA is low. The majority of survivors from OHCA have an initial rhythm of ventricular fibrillation. The approach of defibrillation versus CPR has varied and although there is no evidence that a short period of CPR prior to attempted defibrillation of VF is superior to defibrillation first, the 2023 ILCOR guidelines still make the recommendation for a period of CPR prior to defibrillation.
This study(1) in review aimed “to investigate the relationship of intra-arrest VF/ pVT duration and ROSC in patients with OHCA presenting with recurrent/refractory VF or pVT requiring four or five shocks.”
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