Automated pulse pressure and stroke volume variations from radial artery: evaluation during major abdominal surgery A. Derichard, E. Robin, B. Tavernier,

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Automated pulse pressure and stroke volume variations from radial artery: evaluation during major abdominal surgery A. Derichard, E. Robin, B. Tavernier, M. Costecalde, M. Fleyfel, J. Onimus, G. Lebuffe, J.-P. Chambon, B. Vallet British Journal of Anaesthesia Volume 103, Issue 5, Pages 678-684 (November 2009) DOI: 10.1093/bja/aep267 Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

Fig 1 Relationships between off-line respiratory variation in arterial pulse pressure (PPVref) and automated variation in pulse pressure (PPVauto), n=77, and stroke volume (SVVauto), n=82. British Journal of Anaesthesia 2009 103, 678-684DOI: (10.1093/bja/aep267) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

Fig 2 Off-line arterial pulse pressure variation (PPVref), automated pulse pressure variation (PPVauto), and automated stroke volume variation (SVVauto) before responder (R) and non-responder (NR) VLSs. Boxplots=inter-quartile range and median; whiskers=smallest and largest observations that are less than 1.5 inter-quartile range from the end of the box; P≤0.02, R vs NR for all indices. British Journal of Anaesthesia 2009 103, 678-684DOI: (10.1093/bja/aep267) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

Fig 3 ROC curves comparing the ability of PPVref, PPVauto, and SVVauto to discriminate between responder and non-responder VLSs. The curves for PPVref and PPVauto are superimposed. British Journal of Anaesthesia 2009 103, 678-684DOI: (10.1093/bja/aep267) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

Fig 4 The relation between PPVref, PPVauto, or SVVauto measured before VLSs and the changes in SVI induced by volume infusion. Vertical dotted lines represent the optimal threshold value. British Journal of Anaesthesia 2009 103, 678-684DOI: (10.1093/bja/aep267) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions