1. Epidural analgesia with 0. 15% ropivacaine plus sufentanil 0
Epidural analgesia with 0.15% ropivacaine plus sufentanil 0.5 µg ml–1 versus 0.10% bupivacaine plus sufentanil 0.5 µg ml–1: a double‐blind comparison during labour 
H.J. Clément, L. Caruso, F. Lopez, F. Broisin, M. Blanc‐Jouvan, E. Derré‐Brunet, A. Thomasson, G. Leboucher, J.P. Viale 
British Journal of Anaesthesia 
Volume 88, Issue 6, Pages (June 2002)
DOI: /bja/
Copyright © 2002 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
Median visual analogue pain score (VAPS) as a function of time during labour for the two groups of parturients receiving bupivacaine or ropivacaine. The figure shows the median and the upper and lower quartiles.
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2002 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
Number of patients at each stage of the Bromage motor block scale in the bupivacaine group and the ropivacaine group.
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2002 British Journal of Anaesthesia Terms and Conditions

4. Fig 3
Proportion of parturients in each group without motor block as a function of time. The bupivacaine group was significantly different from the ropivacaine group. Log rank test, P=0.018.
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2002 British Journal of Anaesthesia Terms and Conditions