Malik T, et al. - Researchers investigated if labor epidural catheter placement lower than the usually preferred L3-4 or L2-3 interspace would lead to a higher incidence of S2 dermatomal block and improved analgesia in late labor and at delivery. This study included 100 parturients requesting epidural analgesia. In a random manner, these parturients were allocated to ultrasound-guided L5–S1 epidural catheter placement (experimental group) or non-ultrasound-guided higher lumbar interspace placement (control group). According to findings, no improved sacral sensory block coverage was achieved with placement of an epidural catheter at the L5–S1 interspace using ultrasound, compared to the placement of an epidural catheter at a higher lumbar interspace, without using ultrasound guidance.