The purpose of this study is to compare the effectiveness of two defibrillator pad placements, one where pads are placed on the front of the chest and back (anterior-posterior \[AP\]) and one where the pads are placed on the front and side of the chest (anterior-lateral \[AL\]), for the treatment of cardiac arrest. Both pad placement locations are recommended for use by the American Heart Association (AHA) and International Liaison Committee on Resuscitation (ILCOR) and are used in standard treatment. The investigators are hoping to find out if one pad position is more effective than the other in the treatment of cardiac arrest.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
1,500
Application of defibrillator electrode pads to be used in cardiac arrest treatment
Post-Shock Return of Spontaneous Circulation (ROSC)
Any palpable pulse documented at any time after the first EMS shock
Time frame: day 1
Time to first rhythm analysis
Time from EMS arrival on-scene for non-EMS witnessed arrests and first rhythm analysis by the defibrillator
Time frame: day 1
Time to initial shock
Time from EMS arrival on-scene for non-EMS witnessed arrests and initial shock by EMS
Time frame: day 1
Total EMS shocks
Total shocks given by EMS
Time frame: day 1
Time to ROSC
Time to ROSC from initial shock with competing risks (e.g. termination of resuscitation, pad change, double sequential external defibrillation use)
Time frame: day 1
Survival to hospital admission
Survival to hospital admission
Time frame: day 1
Survival to hospital discharge
Survival to hospital discharge
Time frame: through study completion, an average of 7 days
Survival to hospital discharge with favorable outcome
Survival to hospital discharge with a Cerebral Performance Category score of 1-2
Time frame: through study completion, an average of 7 days
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