Choi EK, et al. - In view of the established efficacy of ultrasound-guided thoracic paravertebral block (TPVB) in providing postoperative analgesia in thoracic surgery, researchers sought to determine the analgesic efficacy of TPVB when pressure measurement during needle advancement is combined with an ultrasound-guided approach in this comparative study. They performed random allocation of the patients undergoing lobectomy through thoracotomy to receive either the ultrasound-guided approach only group (U group) or the ultrasound-guided approach combined with pressure measurement group (UP group) (n = 36 per group). Outcomes revealed significantly lower visual analogue scale scores, local anesthetics and pethidine usage, and a wider sensory block area in the UP group relative to the U group. They thereby suggest superior analgesic effect of a combined technique with ultrasound guidance and pressure measurement over that of an ultrasound-guided approach alone for the management of postthoracotomy pain.