Continuous chest compression-CPR improved cardiac arrest survival in Arizona

The chance of surviving a cardiac arrest outside a hospital was found to be twice as high when bystanders performed continuous chest compressions without mouth-to-mouth breathing than when bystanders performed standard CPR. In those receiving standard CPR (alternating between 30 compressions and 2 breaths), survival was 6 percent. In contrast, 11 percent survived if bystanders kept pumping on their chest and did not stop for mouth-to-mouth breaths until emergency medical services arrived.

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