1. Predictor of fluid responsiveness in the ‘grey zone’: augmented pulse pressure variation through a temporary increase in tidal volume 
J.J. Min, N.-S. Gil, J.-H. Lee, D.K. Ryu, C.S. Kim, S.M. Lee 
British Journal of Anaesthesia 
Volume 119, Issue 1, Pages (July 2017)
DOI: /bja/aex074
Copyright © 2017 The Author(s) Terms and Conditions

2. Fig 1
Study diagram.
British Journal of Anaesthesia  , 50-56DOI: ( /bja/aex074)
Copyright © 2017 The Author(s) Terms and Conditions

3. Fig 2
Prediction of fluid responsiveness by ROC curves of PPV8, SVV8, PPV12, and SVV12 in patients within the grey zone. The straight line is a reference line.
British Journal of Anaesthesia  , 50-56DOI: ( /bja/aex074)
Copyright © 2017 The Author(s) Terms and Conditions