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Published in: Clinical Research in Cardiology 9/2013

01-09-2013 | Original Paper

Door-to-implantation time of extracorporeal life support systems predicts mortality in patients with out-of-hospital cardiac arrest

Authors: Jürgen Leick, Christoph Liebetrau, Sebastian Szardien, Ulrich Fischer-Rasokat, Matthias Willmer, Arnaud van Linden, Johannes Blumenstein, Holger Nef, Andreas Rolf, Matthias Arlt, Thomas Walther, Christian Hamm, Helge Möllmann

Published in: Clinical Research in Cardiology | Issue 9/2013

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Abstract

Objective

This study aimed to identify predictors of mortality in patients with out-of-hospital cardiac arrest (OHCA) undergoing in-hospital extracorporeal life support system (ECLS) treatment.

Methods

We retrospectively studied the characteristics and clinical outcomes of 28 patients (January 2010 and December 2011) with OHCA and veno-arterial ECLS implemented during ongoing cardiopulmonary resuscitation (CPR) upon admission to the cath lab. Baseline left ventricular ejection fraction (LVEF) was determined after ECLS implantation and then every 24 h during and after successful weaning from ECLS.

Results

Overall 30-day survival rate was 39.3 % (11 of 28 patients). Baseline characteristics, initial laboratory measurements, and LVEF on admission were not significantly different between survivors and non-survivors. There was no difference regarding median CPR duration [survivors 44.0 min (IQR 31.0-45.0) vs. non-survivors 53.0 min (IQR 40.0-61.3); P = 0.23]. Door-to-ECLS implantation time was significantly longer in non-survivors [42.5 min (IQR 28.0–56.5) vs. 25.0 min (IQR 21.0–30.0); P < 0.01]. ECLS treatment duration was not significantly different between the two groups [survivors: 4.0 days (IQR 1.5–7.5) vs. non-survivors 6.5 days (IQR 1.0–8.0); P = 0.69]. LVEF significantly improved in survivors during ECLS treatment (mean ± SD survivor 47.5 ± 14.7 % vs. non-survivor 23.3 ± 14.9 %; P < 0.01). The door-to-ECLS implantation time was the only significant and independent predictor of 30-day mortality in multivariate Cox regression analysis (P = 0.04). Kaplan–Meier survival analysis showed a benefit favouring patients with a door-to-ECLS implantation time <30 min (log rank 6.29; P = 0.01).

Conclusion

A door-to-ECLS implantation time <30 min significantly improves 30-day outcomes in patients with OHCA.
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Metadata
Title
Door-to-implantation time of extracorporeal life support systems predicts mortality in patients with out-of-hospital cardiac arrest
Authors
Jürgen Leick
Christoph Liebetrau
Sebastian Szardien
Ulrich Fischer-Rasokat
Matthias Willmer
Arnaud van Linden
Johannes Blumenstein
Holger Nef
Andreas Rolf
Matthias Arlt
Thomas Walther
Christian Hamm
Helge Möllmann
Publication date
01-09-2013
Publisher
Springer Berlin Heidelberg
Published in
Clinical Research in Cardiology / Issue 9/2013
Print ISSN: 1861-0684
Electronic ISSN: 1861-0692
DOI
https://doi.org/10.1007/s00392-013-0580-3

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