1. Comparison between ultrasound-guided transversus abdominis plane and conventional ilioinguinal/iliohypogastric nerve blocks for day-case open inguinal hernia repair 
C Aveline, H Le Hetet, A Le Roux, P Vautier, F Cognet, E Vinet, C Tison, F Bonnet 
British Journal of Anaesthesia 
Volume 106, Issue 3, Pages (March 2011)
DOI: /bja/aeq363
Copyright © 2011 The Author(s) Terms and Conditions

2. Fig 1
Sonographic view of the three lateral abdominal muscles layer obtained with a 13-6 MHz linear transducer. The orientation of the probe was perpendicular to a line joining the anterior superior iliac spine and the inferior rib to obtain a transverse view of the abdominal layers. EO, external oblique; IO, internal oblique; TA, transversus abdominis; P, peritoneum.
British Journal of Anaesthesia  , DOI: ( /bja/aeq363)
Copyright © 2011 The Author(s) Terms and Conditions

3. Fig 2
Sonographic view of a TAP block injection with the needle (arrows) advanced using an in-plane approach with the tip introduced between the aponeurosis of transversus abdominis (TA) and internal oblique (IO) muscles. LA, local anaesthetic.
British Journal of Anaesthesia  , DOI: ( /bja/aeq363)
Copyright © 2011 The Author(s) Terms and Conditions

4. Fig 3
Median pain intensity scores (y-axis, VAS in mm) at rest (VASr) in the PACU and ambulatory unit, and at rest and on movement (VASm) on POD1 and POD2. Data expressed as median (horizontal bar) with 25th–75th (boxes) and the 10th–90th (whiskers) percentiles. Patients in the TAP group had lower VAS scores at rest than those in the IHN group at 4 h (P=0.04), 12 h (P=0.0014), and 24 h (P=0.0013). No differences were noted in the PACU, after POD1 and on deambulation.
British Journal of Anaesthesia  , DOI: ( /bja/aeq363)
Copyright © 2011 The Author(s) Terms and Conditions

5. Fig 4
Median VAS scores (y-axis, VAS in mm) at rest (VASr) and on movement (VASm) 3 (M3) and 6 months (M6) after surgery. Data expressed as median (horizontal bar) with 25th–75th (boxes) and the 10th–90th (whiskers) percentiles. No differences were noted at rest and movement between the TAP and IHN groups. Data are complete for 132 of the 134 patients at M3 and M6 in the TAP group. At 6 months, data were complete for 132 of the 134 and 134 of the 139 patients in the TAP and IHN groups, respectively.
British Journal of Anaesthesia  , DOI: ( /bja/aeq363)
Copyright © 2011 The Author(s) Terms and Conditions