1. Non-invasive assessment of fluid responsiveness using CNAP™ technology is interchangeable with invasive arterial measurements during major open abdominal surgery 
J Renner, M Gruenewald, M Hill, L Mangelsdorff, H Aselmann, C Ilies, M Steinfath, O Broch 
British Journal of Anaesthesia 
Volume 118, Issue 1, Pages (January 2017)
DOI: /bja/aew399
Copyright © 2017 The Author(s) Terms and Conditions

2. Fig 1
Flow of participants. PLR, passive leg raising. Responders, increase in stroke volume index measured by transpulmonary thermodilution ≥15%.
British Journal of Anaesthesia  , 58-67DOI: ( /bja/aew399)
Copyright © 2017 The Author(s) Terms and Conditions

3. Fig 2
Correlation between pulse pressure variation (PPV) before volume-loading manoeuvre and percentage change in stroke volume index measured by transpulmonary thermodilution (ΔSVITPTD; n=85). The grey rectangle indicates the upper and lower limits of the uncertainty zone, the grey zone.
British Journal of Anaesthesia  , 58-67DOI: ( /bja/aew399)
Copyright © 2017 The Author(s) Terms and Conditions

4. Fig 3
Box plots and individual values of pulse pressure variation obtained with the PiCCO system (PPVPiCCO) and with the CNAP device (PPVCNAP) in responders (Rs) and non-responders (NRs) before volume-loading manoeuvres (passive leg raising and first fluid bolus of crystalloid). The dashed line indicates the calculated threshold value of PPVCNAP (9%) and of PPVPiCCO (13%). The ‘grey zone’ is indicated with the grey rectangle (PPVCNAP, 7–10%; PPVPiCCO, 10–13%).
British Journal of Anaesthesia  , 58-67DOI: ( /bja/aew399)
Copyright © 2017 The Author(s) Terms and Conditions

5. Fig 4
Receiver operating characteristic (ROC) curves showing the ability of PPVPiCCO and PPVCNAP to predict fluid responsiveness to different volume-loading manoeuvres. (A) Passive leg raising. (B) Fluid resuscitation in the operating room. (C) Summary of both volume challenges.
British Journal of Anaesthesia  , 58-67DOI: ( /bja/aew399)
Copyright © 2017 The Author(s) Terms and Conditions