Abstract
Background
This study investigated the impact of prophylactic veno-arterial extracorporeal membrane oxygenation (pECMO) in patients with depressed left ventricular ejection fraction (dLVEF) undergoing transcatheter aortic valve implantation (TAVI).
Methods
Out of 1490 patients undergoing TAVI at two centers (2010–2015), 222 patients had dLVEF (≤ 40%). Of these, 21 patients (10%) underwent TAVI with pECMO. Complications and outcome according to pECMO were analyzed in the entire and in a propensity-matched population.
Results
In the entire population, patients with pECMO had a higher logEuroScore I (33% ± 19 vs. 25% ± 17; p = 0.037), worse LVEF (26% ± 7 vs. 32% ± 7; p = 0.001), more major bleedings (29% vs. 9%; p = 0.015), higher transfusion rate (30% vs. 10%; p = 0.019) and longer in-hospital stay (9.0 [7.0;14.0] vs. 7.0 [5.0;10.0] days; p = 0.024). After propensity matching only transfusion rate remained higher with pECMO (30% vs. 7%; p = 0.025). In the entire population, rate and risk of 30-day mortality was higher with pECMO (24% vs. 6%, HR 95%CI 4.29 [1.51–12.19]; p = 0.006). In the matched population, this effect was attenuated (24% vs. 12%, HR 95%CI 2.09 [0.61–7.23]; p = 0.243). Cumulative rate and risk of 1-year mortality did not differ in the entire (log-rank p = 0.069; 39% vs. 22%, HR 95%CI 1.99 [0.94–4.24]; p = 0.074) nor in the matched population (log-rank p = 0.520; 39% vs. 31%, HR 95%CI 1.34 [0.55–3.28]; p = 0.523).
Conclusion
In patients with dLVEF undergoing TAVI, periprocedural pECMO support does not seem to improve patient outcome.
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Trenkwalder, T., Pellegrini, C., Holzamer, A. et al. Prophylactic ECMO during TAVI in patients with depressed left ventricular ejection fraction. Clin Res Cardiol 108, 366–374 (2019). https://doi.org/10.1007/s00392-018-1364-6
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DOI: https://doi.org/10.1007/s00392-018-1364-6