• Eur J Cardiothorac Surg · Jan 2021

    Observational Study

    Role of levosimendan in weaning children requiring veno-arterial extracorporeal membrane oxygenation after cardiac surgery.

    • Kevin C Pan, Sai Shankar, Johnny Millar, Roberto Chiletti, Warwick Butt, Yves d'Udekem, and Siva P Namachivayam.
    • Intensive Care Unit, The Royal Children's Hospital, Melbourne, VIC, Australia.
    • Eur J Cardiothorac Surg. 2021 Jan 4; 59 (1): 262-268.

    ObjectivesLevosimendan use is associated with more successful decannulation from veno-arterial extracorporeal membrane oxygenation (VA ECMO) in adults. We sought to determine the role of levosimendan in children who required VA ECMO after cardiac surgery.MethodsThis observational study compares the outcomes of children who required VA ECMO after cardiac surgery and received levosimendan for weaning with those who did not receive the drug. A doubly robust estimation methodology (inverse probability of treatment weighting with regression adjustment) was used to balance study covariates (age, weight, sex, lactate pre-ECMO, vasoactive-inotropic score pre-ECMO, ECMO indication, ECMO modality, Risk Adjustment for Congenital Heart Surgery-1 category), and the final model was further adjusted for duration of ECMO.ResultsBetween January 2012 and December 2018, 118 eligible children received 145 ECMO runs [failed weaning from cardiopulmonary bypass, 67/145 (46%); low cardiac output state, 30/145 (21%); extracorporeal cardiopulmonary resuscitation, 47/145 (32%); other reasons in 1]. Levosimendan was administered before decannulation in 54/145 (37%) runs. The median time to start levosimendan after ECMO cannulation was 39 h (interquartile range, 14-83 h). The unadjusted rates of weaning failure in the levosimendan vs control group were 7% (4/54) vs 19% (17/91). In the controlled analysis, levosimendan was associated with decreased risk of weaning failure [adjusted relative risk (95% confidence interval), 0.20 (0.07-0.57)] and decreased risk of in-hospital mortality [adjusted relative risk (95% confidence interval), 0.45 (0.26-0.76)].ConclusionsLevosimendan administration in children requiring VA ECMO after cardiac surgery was associated with decreased risk of weaning failure and decreased in-hospital mortality.© The Author(s) 2020. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.

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