Association between shockable rhythm conversion and outcomes in patients with out-of-hospital cardiac arrest and initial non-shockable rhythm, according to the cause of cardiac arrest.

Objective: Conversion to shockable rhythm from an initial non-shockable rhythm is associated with good neurologic prognoses in patients with out-of-hospital cardiac arrest (OHCA). We aimed to investigate whether conversion to shockable rhythm has an association with good neurologic outcomes, according to the etiology of cardiac arrest.

Methods: We conducted a nationwide, population-based, cohort study using the OHCA data from the Korea Centers for Disease Control and Prevention database in 2012-2016.