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Table 1 Patient eligibility criteria

From: DOuble SEquential External Defibrillation for Refractory Ventricular Fibrillation (DOSE VF): study protocol for a randomized controlled trial

Inclusion criteria

Exclusion criteria

Patients are eligible for study inclusion if,

> 18 years of age

• Presumed cardiac etiology

• Presenting rhythm of VF/pVT

• No ROSC or non-VF/pVT rhythm during first three analyses

Patients are not eligible for inclusion if,

• Traumatic cardiac arrest

• Pre-existing do not resuscitate orders

• Non-VF/pVT presenting rhythm

• Did not receive 3 consecutive defibrillation attempts

• Care initiated by non-participating paramedic agency or fire service