• Ther Hypothermia Temp Manag · Sep 2021

    Multicenter Study Observational Study

    Shorter Interval from Witnessed Out-Of-Hospital Cardiac Arrest to Reaching the Target Temperature Could Improve Neurological Outcomes After Extracorporeal Cardiopulmonary Resuscitation with Target Temperature Management: A Retrospective Analysis of a Japanese Nationwide Multicenter Observational Registry.

    • Shu Yamada, Tadashi Kaneko, Maki Kitada, Masahiro Harada, and Takeshi Takahashi.
    • Emergency and Critical Care Center, Kumamoto Medical Center, Kumamoto, Japan.
    • Ther Hypothermia Temp Manag. 2021 Sep 1; 11 (3): 185-191.

    AbstractExtracorporeal cardiopulmonary resuscitation (ECPR) with extracorporeal membrane oxygenation is a more promising treatment for out-of-hospital cardiac arrest (OHCA) than conventional cardiopulmonary resuscitation (CCPR). However, previous studies that compared ECPR and CCPR included mixed groups of patients with or without target temperature management (TTM). In this study, we compared the neurological outcomes of OHCA between ECPR and CCPR with TTM in all patients. We performed retrospective subanalyses of the Japanese Association for Acute Medicine OHCA registry. Witnessed adult cases of cardiogenic OHCA treated with TTM were eligible for this study. We used univariate and multivariable analyses in all eligible patients to compare the neurological outcomes after ECPR or CCPR. We also conducted propensity score analyses of all patients and according to the interval from witnessed OHCA to reaching the target temperature (IWT) of ≤600, ≤480, ≤360, ≤240, and ≤120 minutes. We analyzed 1146 cases. The propensity score analysis did not show a significant difference in favorable neurological outcomes (defined as a Glasgow-Pittsburgh Cerebral Performance Category of 1-2 at 1 month after collapse) between EPCR and CCPR (odds ratio: OR 4.683 [95% confidence interval: CI 0.859-25.535], p = 0.747). However, ECPR was associated with more favorable neurological outcomes in patients with IWT of ≤600 minutes (OR 7.089 [95% CI 1.091-46.061], p = 0.406), ≤480 minutes (OR 10.492 [95% CI 1.534-71.773], p = 0.0168), ≤360 minutes (OR 17.573 [95% CI 2.486-124.233], p = 0.0042), ≤240 minutes (OR 38.908 [95% CI 5.045-300.089], p = 0.0005), and ≤120 minutes (OR 200.390 [95% CI 23.730-1692.211], p < 0.001). This study revealed significant differences in the neurological outcomes between ECPR and CCPR in patients with TTM whose IWT was ≤600 minutes.

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