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  • Title: [Efficacy of sugammadex in the reversal of neuromuscular blockade induced by rocuronium in long-duration surgery: under inhaled vs. intravenous anesthesia].
    Author: Veiga-Ruiz G, Domínguez N, Orozco J, Janda M, Hofmockel R, Alvarez-Gómez JA.
    Journal: Rev Esp Anestesiol Reanim; 2009; 56(6):349-54. PubMed ID: 19725342.
    Abstract:
    BACKGROUND AND OBJECTIVE: Sugammadex reverses neuromuscular blockade induced by aminosteroid agents by encapsulating these agents. The objective of this study was to compare the efficacy and safety of sugammadex to reverse a rocuronium-induced neuromuscular blockade in long-duration surgery in association with inhaled or intravenous anesthesia. PATIENTS AND METHODS: We performed a randomized, double-blind, multicenter trial of 20 ASA 1-3 patients aged between 18 and 69 years and scheduled for elective surgery lasting at least 120 minutes. Anesthesia was induced with remifentanil and rocuronium at a dosage of 0.6 mg x kg(-1), and neuromuscular function was monitored by means of acceleromyography. After randomization, anesthesia was maintained with sevoflurane or with propofol for total intravenous anesthesia. Patients in both groups also received an infusion of remifentanil for analgesia and rocuronium to maintain a block of greater than 90%. After surgery, sugammadex was administered at a dosage of 2 mg x kg(-1) on reappearance of the second train-of-four (TOF) twitch (T2) and the times until recovery of T4/T1 ratios of 0.7, 0.8, and 0.9 (main endpoints). Mean arterial pressure and heart rate were recorded at baseline and after 2, 5, 10, and 30 minutes (secondary outcome measures). RESULTS: Although less rocuronium was consumed in the sevoflurane group than in the propofol group and the time between the start of sugammadex administration until recovery of a TOF ratio of 0.9 was shorter for the sevoflurane group than for propofol group (mean [SD], 1.46 [0.30] minutes and 1.89 [0.62] minutes, respectively), these differences were not significant. No signs of recurarization or associated adverse effects were observed. CONCLUSIONS: Sugammadex effectively and safely reverses a rocuronium-induced neuromuscular blockade in less than 2 minutes in long-duration surgery performed under both inhaled and intravenous anesthesia. The interaction of neuromuscular blocking agents with sevoflurane appears not to affect the reversal time of sugammadex in such operations.
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