Effect of superficial cervical plexus nerve block with Ropivacaine or a combination of different adjuvants on perioperative analgesia and quality of postoperative recovery in patients undergoing radical thyroid cancer surgery under general anesthesia: a prospective randomized controlled trial.

Objective: To investigate the effect of ultrasound-guided bilateral superficial cervical plexus nerve blocks with Ropivacaine or a combination of different adjuvants on perioperative analgesia and quality of postoperative recovery in patients undergoing radical thyroid cancer surgery under general anesthesia with nerve monitoring without muscarinic maintenance.

Methods: A total of 140 patients undergoing elective radical thyroid cancer surgery were randomly divided into four groups, with 35 cases in each group: general anesthesia alone group (Group C), general anesthesia + Ropivacaine group (Group R), general anesthesia + Ropivacaine combined with dexmedetomidine group (Group R1), and general anesthesia + Ropivacaine combined with dexamethasone group (Group R2). The primary observation index were postoperative resting and active Visual Analogue Score.