Effects of sub-anesthetic doses of esketamine on postoperative sleep disturbance and pain in patients undergoing lumbar interbody fusion - A randomized, double-blind, placebo-controlled, two-center trial.

Background: Postoperative sleep disturbance (PSD) is a common postoperative complication that significantly impacts patients' recovery, particularly after lumbar surgery.

Methods: This two-center, double-blind, placebo-controlled randomized trial was conducted between June 6, 2024, and November 26, 2024, in two hospitals in China. A total of 80 patients participated in this study and were randomly assigned to the esketamine group (n = 40) or the placebo group (n = 40).

Effects of Ultrasound-Guided Thoracic Paravertebral Nerve Block Combined with Perineural or IV Dexmedetomidine on Acute and Chronic Pain After Thoracoscopic Resection of Lung Lesions: A Double-Blind Randomized Trial.

Background: Thoracic paravertebral block (TPVB) analgesia can be prolonged by local anesthetic adjuvants such as dexmedetomidine. This study aimed to evaluate the two administration routes of dexmedetomidine on acute pain and chronic neuropathic pain (NeuP) prevention compared with no dexmedetomidine.

Methods: A total of 216 patients were randomized to receive TPVB using 0.