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. 2015 Aug 31;19(1):304. doi: 10.1186/s13054-015-1014-6

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© Lanspa et al. 2015

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Scatterplots of (a) left ventricular ejection fraction (EF) and central venous oxygen saturation (ScvO₂), (b) longitudinal strain and ScvO₂, (c) EF and lactate, and (d) strain and lactate. These graphs illustrate that elevated lactate and low ScvO₂ may be observed with elevated EF but are less often observed with normal strain