1. Caudal epidural blocks in paediatric patients: a review and practical considerations 
Marion Wiegele, Peter Marhofer, Per-Arne Lönnqvist 
British Journal of Anaesthesia 
Volume 122, Issue 4, Pages (April 2019)
DOI: /j.bja
Copyright © 2019 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
A transverse ultrasound view illustrating the sacrococcygeal ligament (upward arrow) and the two sacral cornua (two downward arrows).
British Journal of Anaesthesia  , DOI: ( /j.bja )
Copyright © 2019 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
The longitudinal paramedian position of the linear high-frequent ultrasound probe for observation of the administration of local anaesthetic for caudal blockade.
British Journal of Anaesthesia  , DOI: ( /j.bja )
Copyright © 2019 British Journal of Anaesthesia Terms and Conditions

4. Fig 3
Ultrasound image of the epidural space in a baby weighing 3 kg. The upward arrow indicates the dura mater, the double-ended arrow the epidural space, and the downward arrow the L5 spinous process. (Left to right=cranial to caudal.)
British Journal of Anaesthesia  , DOI: ( /j.bja )
Copyright © 2019 British Journal of Anaesthesia Terms and Conditions

5. Fig 4
Ultrasound visualisation of how the local anaesthetic is spreading inside the epidural space. The double-ended arrow indicates the dimensional increase of the epidural space in the anteroposterior plane. (Left to right=cranial to caudal.)
British Journal of Anaesthesia  , DOI: ( /j.bja )
Copyright © 2019 British Journal of Anaesthesia Terms and Conditions