• Resuscitation · Oct 2021

    Multicenter Study

    Combined Use of Venoarterial Extracorporeal Membrane Oxygenation and Intra-Aortic Balloon Pump after Cardiac Arrest.

    • Norihiro Kuroki, Ken Nagao, Toshiaki Otsuka, Masanari Kuwabara, Jun Nakata, Tadateru Takayama, Yusuke Hosokawa, Tadashi Ashida, Kou Suzuki, Takeshi Yamamoto, and Morimasa Takayama.
    • Tokyo CCU Network, Scientific Committee, Tokyo, Japan; Department of Cardiology, Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan. Electronic address: norihiro-kuroki@nifty.ne.jp.
    • Resuscitation. 2021 Oct 1; 167: 345-354.

    ObjectivesWe investigated whether intra-aortic balloon pump (IABP) combined with venoarterial extracorporeal membrane oxygenation (VA-ECMO) was associated with favourable neurological outcomes for patients after the return of spontaneous circulation (ROSC). Moreover, we evaluated the aetiology of cardiac arrest on the effectiveness of this therapy in a sub-study.BackgroundThere is insufficient research on the optimal combination of machines for patients after ROSC is not established.MethodsThis is a large-scale, multicentre, 30-day cohort study. Among 80,716 patients who delivered to the emergency room, 935 patients treated with VA-ECMO after ROSC were included using the data from the Tokyo Cardiovascular Care Unit Network Registry between 2010 and 2017. The study patients were stratified according to the use of IABP [the ECMO + IABP group (n = 762) vs. the ECMO-alone group (n = 173)]. We also evaluated the cause of cardiac arrest [acute coronary syndrome (ACS) and non-ACS] in the sub-study. To adjust the patients' backgrounds, we used the propensity score matching for additional analyses. The endpoint was 30-day favourable neurological outcome.ResultsThe ECMO + IABP group showed significantly better neurological outcomes than the ECMO-alone group (crude; 35% vs. 25%; log-lank P < 0.001). In the ACS subgroup, the ECMO + IABP group showed significantly better neurological outcome (crude; 34% vs. 18%; log-lank P < 0.001), but not in the non-ACS subgroup (crude; 38% vs. 32%; log-lank P = 0.11). These results are similar after adjustments to their backgrounds using propensity matching.ConclusionsCompared to VA-ECMO alone, the combined use of VA-ECMO and IABP is associated with better neurological outcomes after ROSC, especially in complicated ACS.Copyright © 2021 Elsevier B.V. All rights reserved.

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