December 12, 2012
1 min read

Chest compression-only CPR improved survival for out-of-hospital sudden cardiac arrest

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Chest compression-only CPR performed by bystanders was associated with improved survival and favorable neurological outcomes after out-of-hospital sudden cardiac arrest compared with conventional CPR with rescue breathing, according to results of a recently published study.

For a prospective, population-based, observational study, researchers analyzed 1,376 people in Japan who had out-of-hospital cardiac arrest and received CPR and automated external defibrillator shocks from bystanders between 2005 and 2009. Of those incidents, 36.8% received chest compression-only CPR and 63.2% received conventional CPR with chest compressions and rescue breathing.

Thirty days after the sudden cardiac arrest, researchers reported that the bystander-initiated chest compression-only CPR group had a significantly higher rate of survival with favorable neurological outcome compared with the conventional CPR group (40.7% vs. 32.9%; adjusted OR=1.33; 95% CI, 1.03-1.7). Earlier shocks and younger age were associated with more neurologically favorable survival at 1 month.

“This is one of the highest survival rates with neurologically favorable outcome reported and should be the target survival after out-of-hospital cardiac arrest,” Taku Iwami, MD, PhD, from the department of preventive services at Kyoto University School of Public Health in Japan, and colleagues wrote in the study.

Disclosure: Iwami and colleagues report no relevant financial disclosures.