Improved Survival After Non-Shockable Cardiac Arrest With New CPR Guidelines
In recent years resuscitation guidelines have evolved to emphasize chest compressions. At the same time, a greater proportion of out-of-hospital cardiac arrest (OHCA) cases are now due to “nonshockable” rhythms, defined as asystole and pulseless electrical activity, but the effect of the new guidelines on these type of OHCA cases is unknown.
In a study published in Circulation, Peter J. Kudenchuk and colleagues report on more than 10 years of experience treating nearly 4,000 out-of-hospital patients with unshakable OHCA treated in King County, Washington. Midway through the study period the new AHA guidelines came into effect. Overall, outcomes were poor in both groups, but several important measures were significantly improved during the second half of the study: