Reversal of profound neuromuscular block by sugammadex administered three minutes after rocuronium: A comparison with spontaneous recovery from succinylcholine

Chingmuh Lee, Jonathan S. Jahr, Keith A. Candiotti, Brian Warriner, Mark Zornow, Mohamed Naguib

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162 Scopus citations


BACKGROUND: Rocuronium in intubation doses provides similar intubation conditions as succinylcholine, but has a longer duration of action. This study compared time to sugammadex reversal of profound rocuronium-induced neuromuscular block with time to spontaneous recovery from succinylcholine. METHODS: One hundred and fifteen adult American Society of Anesthesiologists Class I-II surgical patients were randomized to this multicenter, safety-assessor-blinded, parallel group, active-controlled, Phase IIIa trial. Anesthesia was induced and maintained with propofol and an opioid. Neuromuscular transmission was blocked and tracheal intubation facilitated with 1.2 mg/kg rocuronium or 1 mg/kg succinylcholine. Sugammadex (16 mg/kg) was administered 3 min after rocuronium administration. Neuromuscular function was monitored by acceleromyography. The primary efficacy endpoint was the time from the start of relaxant administration to recovery of the first train-of-four twitch (T1) to 10%. RESULTS: One hundred and ten patients received study treatment. Mean times to recovery of T1 to 10% and T1 to 90% were significantly faster in the rocuronium-sugammadex group (4.4 and 6.2 min, respectively), as compared with the succinylcholine group (7.1 and 10.9 min, respectively; all P <0.001). Timed from sugammadex administration, the mean time to recovery of T1 to 10%, T1 to 90%, and the train-of-four (T4/T1) ratio to 0.9 was 1.2, 2.9, and 2.2 min, respectively. Reoccurrence of the block was not observed. There were no serious adverse events related to study treatments. CONCLUSION: Reversal of profound high-dose rocuronium-induced neuromuscular block (1.2 mg/kg) with 16 mg/kg sugammadex was significantly faster than spontaneous recovery from 1 mg/kg succinylcholine.

Original languageEnglish (US)
Pages (from-to)1020-1025
Number of pages6
Issue number5
Publication statusPublished - May 2009


ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

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