The safety of high-dose rocuronium bromide in general anesthesia for spinal surgery and its effects on muscle relaxation.

PURPOSE This study aimed to investigate the effects of high-dose rocuronium bromide in general anesthesia for spinal surgery and analyze its safety. METHODS A total of 90 patients with spine diseases who underwent elective spinal surgery in our hospital were enrolled as study subjects, and were divided into 2-fold group (intraoperative administration of 0.6 mg/kg rocuronium bromide, n=30), 3-fold group (0.9 mg/kg rocuronium bromide, n=30) and 4-fold group (1.2 mg/kg rocuronium bromide, n=30). The effects of rocuronium bromide on muscle relaxation, the operative time and the incidence of adverse reactions were compared among the three groups. RESULTS The onset time of muscle relaxation in the 4-fold group was significantly lower than that in 2-fold and 3-fold groups. The duration of muscle relaxation and duration of action in the 4-fold group were significantly higher than those in the 2-fold and 3-fold groups (P<0.05). The satisfaction rate in the 4-fold group (100.00%) was significantly higher than that in the 2-fold group (66.67%) and the 3-fold group (86.67%) (P<0.05). The 4-fold group exhibited significantly higher intubating condition score at 1 min and significantly lower operative time than the 2-fold and 3-fold groups (P<0.05). The incidence of adverse reactions in the 4-fold group was 23.33%, slightly higher than those in the 2-fold (20.00%) and 3-fold groups (20.00%) (P>0.05). CONCLUSION High-dose rocuronium bromide shortens the onset time of muscle relaxation in patients undergoing spinal surgery, creates better intubation conditions, has longer duration of action, and shortens the patient's operative time, without increasing adverse reactions such as skin flushing, rash, increased airway resistance and bronchospasm, laryngeal edema, etc. Meanwhile, high-dose rocuronium bromide can shorten intubation time, which is conducive to the smooth operation and reduces surgical stress injuries.

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