• Sennur Uzun, Ismail A Erden, Ozgur Canbay, and Ulku Aypar.
• Department of Anesthesiology and Reanimation, Faculty of Medicine, Hacettepe University, Sihhiye, Ankara, Turkey. Electronic address: sennuruzun1@gmail.com.
• Kaohsiung J Med Sci. 2014 Nov 1;30(11):566-9.

AbstractRocuronium is a nondepolarizing neuromuscular blocking agent used in anesthesia induction and is associated with considerable discomfort and burning pain during injection, which is reported to occur in 50-80% of patients. This study was carried out to investigate the effectiveness of intravenous paracetamol pretreatment compared with lidocaine and normal saline to prevent rocuronium injection pain. The study included 150 ASA I-II patients undergoing elective orthopedic, gastrointestinal, and gynecological procedures under general anesthesia. They were allocated into three groups according to pretreatment drugs: lidocaine (40 mg) (n = 50), paracetamol (n = 50), and normal saline group (n = 50). Before anesthesia induction with propofol, all patients were pretreated with rocuronium. The pain caused by the injection was evaluated. Local signs were assessed on the arm at the end of the injection, as well as 24 hours after recovery from anesthesia. There were no patients with blurred speech or vision and there was no respiratory depression in any group after pretreatment with the study drug. The level of pain on injection was statistically lower in those who had received paracetamol compared to normal saline (p = 0.009). There were more patients in the saline group with severe pain (p < 0.001). Paracetamol relieved the rocuronium injection pain better than normal saline but lidocaine was the best of the three drugs (p < 0.001).Copyright © 2014. Published by Elsevier Taiwan.

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