• Yasuyoshi Sakurai, Michiko Uchida, Junko Aiba, Fumiaki Mimura, Midori Yamaguchi, and Masaya Kakumoto.
• Masui. 2014 Mar 1;63(3):315-9.

BackgroundWe investigated whether sugammadex could reverse neuromuscular blockade induced by rocuronium in patients for cesarean delivery treated with magnesium sulfate preoperatively.MethodsTwenty-three pregnant women received general anesthesia induced with thiopental and rocuronium. They were maintained by nitrous oxide, oxygen and sevoflurane (GOS) before delivery and after delivery by GOS, midazolam, and propofol. After the surgery, the patients with two or more counts of train-of-four (TOF), the moderate block group were classified into Mg (-) M and Mg (+) M, depending whether magnesium sulfate had been injected or not, and sugammadex 2 mg x kg(-1) was administered to both groups. Patients with PTC 2 or more, the profound block group, were classified into Mg (-) P or Mg (+) P and sugammadex 4 mg x kg(-1) was administered to both groups. Recovery time was defined as the time required to reach TOFR 0.9 or more after the injection of sugammadex.ResultsMedian recovery times of the Mg (-) M, the Mg (-) P, the Mg (+) M and the Mg (+) P were 63 seconds (range: 26-130, N = 7), 127 seconds (range: 63-228, N = 7), 104 seconds (range: 67-133, N = 5), and 142 seconds (range: 57-209, N = 4), respectively.ConclusionsSugammadex could reverse rocuronium-induced neuromuscular blockade in a dose-response manner even in the patients treated with magnesium sulfate.

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