Letter by Shiyovich et al regarding article, "resumption of chest compressions after successful defibrillation and risk for recurrence of ventricular fibrillation in out-of-hospital cardiac arrest".

Abstract

In their study, Conover et al1 investigated whether ventricular fibrillation (VF) recurrence in first 30 s post shock of cardiac arrest victims with initial rhythm of VF is related to timing of post shock chest compression (CC) resumption. Several clarifications and potential additions would help to ascertain the relationship between resumption of CC after successful defibrillation and recurrence of VF better. The authors stated that defibrillation of VF was successful if VF was terminated for ≥5 s. In group CC1, CCs were resumed 1 to 5 s post shock. Considering the latter time intervals, the definition of successful defibrillation and VF recurrence in this subgroup should …