1. Prediction of immediate postoperative pain using the analgesia/nociception index: a prospective observational study 
E. Boselli, L. Bouvet, G. Bégou, R. Dabouz, J. Davidson, J.-Y. Deloste, N. Rahali, A. Zadam, B. Allaouchiche 
British Journal of Anaesthesia 
Volume 112, Issue 4, Pages (April 2014)
DOI: /bja/aet407
Copyright © 2014 The Author(s) Terms and Conditions

2. Fig 1
Flow diagram. ANS, autonomic nervous system; ENT, ear-nose-throat; NMB, neuromuscular block; NRS, numerical rating scale; PACU, post-anaesthesia care unit; TIVA, total intravenous anaesthesia.
British Journal of Anaesthesia  , DOI: ( /bja/aet407)
Copyright © 2014 The Author(s) Terms and Conditions

3. Fig 2
Negative linear relationship between ANI and NRS. ANI, analgesia/nociception index; NRS, numerical rating scale.
British Journal of Anaesthesia  , DOI: ( /bja/aet407)
Copyright © 2014 The Author(s) Terms and Conditions

4. Fig 3
ROC curve showing the relationship between sensitivity (true-positive rate) and 100−specificity (true-negative rate) determining the performance of ANI measured immediately before extubation to predict immediate postoperative pain (NRS>3). The open circle represents Youden index. ANI, analgesia/nociception index; AUC, area under the curve; ROC, receiver-operating characteristic.
British Journal of Anaesthesia  , DOI: ( /bja/aet407)
Copyright © 2014 The Author(s) Terms and Conditions