Abstract
BackgroundHybrid emergency department (ED), which are equipped with fluoroscopy and computed tomography has been developed in Japan as a novel emergency care room. Although hybrid ED is effective in improving the outcomes of severe trauma, its influence on the management of out-of-hospital cardiac arrest (OHCA) requiring extracorporeal cardiopulmonary resuscitation (ECPR) remains unclear. ObjectivesThe aim of this study was to elucidate the impact of hybrid ED on ECPR procedures and outcome in OHCA patients focusing on time from hospital arrival to establishment of ECPR. MethodsA retrospective single-center cohort study was conducted, including adult OHCA patients who underwent ECPR between April 2013 and March 2022. Patients treated in conventional ED were compared with those in hybrid ED. Primary outcome was time from hospital arrival to ECPR initiation. Secondary outcomes included favorable neurological outcome at 30 days and incidence of cannulation-related adverse events. ResultsHybrid ED installation led to a significant decrease in time to ECPR initiation. In the interpreted time series analysis for the time from hospital arrival to establishment ECPR, there was statistically significant upward level change and downward trend change after the installation of hybrid ED. These results mean the time from hospital arrival to the establishment of ECPR was prolonged just after installation of hybrid ER, and the time from hospital arrival to the establishment of ECPR was shortened over time. There were no statistically significant differences between the conventional and hybrid ED groups on the favorable neurological outcome and cannulation-related adverse events. ConclusionsThe installation of hybrid ED was associated with shortened time from hospital arrival to establishment of ECPR. Further evaluation is needed to elucidate the effects of hybrid ED on OHCA and determine an optimal strategy.
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