1. Surgical pleth index in children younger than 24 months of age: a randomized double- blinded trial 
J. Harju, M.-L. Kalliomäki, H. Leppikangas, M. Kiviharju, A. Yli-Hankala 
British Journal of Anaesthesia 
Volume 117, Issue 3, Pages (September 2016)
DOI: /bja/aew215
Copyright © 2016 The Author(s) Terms and Conditions

2. Fig 1
Flowchart.
British Journal of Anaesthesia  , DOI: ( /bja/aew215)
Copyright © 2016 The Author(s) Terms and Conditions

3. Fig 2
The median value of the surgical pleth index (SPI) at incision in the block group (a), the saline group (b), at intubation (c), and at times when fentanyl was administered (d). Blue lines represent each individual, and the green line shows the median of all measurements. The time point of interest is located at the middle of the x-axis (0). The total time line is 240 s (a–c) and 600 s (d).
British Journal of Anaesthesia  , DOI: ( /bja/aew215)
Copyright © 2016 The Author(s) Terms and Conditions

4. Fig 3
The median value of the normalized pulse plethysmographic amplitude (PPGAnorm) at incision in the block group (a), the saline group (b), and at intubation (c). Blue lines represent each individual, and the green line shows the median of all measurements. The time point of interest is located at the middle of the x-axis (0). The total time line is 240 s.
British Journal of Anaesthesia  , DOI: ( /bja/aew215)
Copyright © 2016 The Author(s) Terms and Conditions