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  • Title: Comparison of recovery times from rocuronium-induced muscle relaxation after reversal with three different doses of sugammadex and succinylcholine during electroconvulsive therapy.
    Author: Kadoi Y, Hoshi H, Nishida A, Saito S.
    Journal: J Anesth; 2011 Dec; 25(6):855-9. PubMed ID: 21947754.
    Abstract:
    PURPOSE: This study was conducted to compare recovery times from rocuronium-induced muscle relaxation after reversal with three different doses of sugammadex with succinylcholine during electroconvulsive therapy (ECT). METHODS: Seventeen patients who were scheduled to undergo ECT were studied. Anesthesia was induced by use of propofol (1.0 mg/kg) followed by either succinylcholine (SCC) (1 mg/kg) or rocuronium (0.6 mg/kg). Assisted mask ventilation was initiated with 100% oxygen. After T1 was assessed as being zero by neuromuscular monitoring, an electroshock stimulus was applied bilaterally. Patients receiving rocuronium were infused with 16, 8, or 4 mg/kg sugammadex immediately after the seizure stopped to reverse the muscle relaxation. Neuromuscular monitoring was continued until recovery of the train-of-four ratio to 0.9 at the tibial nerve in the leg. The times to recovery of T1 to 10 and 90% with both relaxants were compared. RESULTS: The time to recovery of T1 to 90% after 16 mg/kg sugammadex was shorter than that in subjects treated with SCC (p = 0.046), whereas that after 4 mg/kg sugammadex was longer than that in subjects treated with SCC (SCC group: 429 ± 65 s, 16 mg/kg sugammadex group: 387 ± 63 s*, 8 mg/kg sugammadex group: 462 ± 66 s, 4 mg/kg sugammadex group: 563 ± 45 s(*,#); *p < 0.05 compared with SCC, (#)p < 0.01 compared with 16 mg/kg sugammadex). CONCLUSIONS: This study demonstrates the efficacy of rocuronium-sugammadex as an alternative to SCC for muscle relaxation during ECT, and indicates that 8 mg/kg sugammadex produces equally rapid recovery from rocuronium muscular relaxation compared with spontaneous recovery from 1 mg/kg SCC during ECT.
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