Hamed MA, et al. - The efficacy of ultrasound-guided bilateral erector spinae plane block (ESPB) vs intrathecal morphine (ITM) for analgesia after elective cesarean delivery under spinal anesthesia was investigated. Researchers randomly allocated, in total, 140 parturients scheduled for elective cesarean section under spinal anesthesia to receive either 10 mg hyperbaric bupivacaine intrathecally through spinal anesthesia, followed by an ESPB at the ninth thoracic transverse process with 20 mL of 0.5% bupivacaine immediately after the operation (ESPB-group) or 10 mg hyperbaric bupivacaine with 100 mcg morphine intrathecally through spinal anesthesia, followed by a sham block at the end of the surgery (ESPB-group). They performed assessment of pain at several postoperative time points using the visual analogue scale score, total opioid consumption, and time to the first analgesic request. Outcomes revealed a successful postoperative analgesic effect of ESPB and hence it may limit opioid consumption in parturients undergoing elective cesarean delivery.