Olsen JA, et al. - Considering that guidelines recommend constant or escalating energy levels for shocks after the initial defibrillation attempt, researchers undertook a post hoc analysis of the Circulation Improving Resuscitation Care trial database to compare survival to hospital discharge for 200 J escalating to 360 J vs fixed 360 J in patients with initial ventricular fibrillation/pulseless ventricular tachycardia. The escalating energy group and the fixed-high energy group had 260 and 478 patients and 883 and 1,736 shocks, respectively. According to findings, the groups showed no difference in terms of survival to hospital discharge or the frequency of termination of ventricular fibrillation/pulseless ventricular tachycardia.