“…Early evidence was positive, demonstrating relatively high rates of ROSC and survival to hospital discharge when used by laypersons and emergency personnel for OHCA. 51,52 Efficacy has been demonstrated in such varied settings as casinos, in airports, and on board passenger aircraft. [53][54][55] Recent large population-based studies of public-access defibrillation (PAD) from Japan and the Resuscitation Outcomes Consortium confirm a significant survival benefit in OHCA.…”