• Ann Fr Anesth Reanim · Mar 2003

    Case Reports

    [Neuromuscular blockade monitoring at the corrugator supercilii and ocular myasthenia gravis].

    • J M Devys, V Guellec, A Corré, and B Plaud.
    • Département d'anesthésiologie-réanimation-urgences, fondation Adolphe-de-Rothschild, 25-29, rue Manin, 75940 Paris cedex 19, France. jmdevys@fo-rothschild.fr
    • Ann Fr Anesth Reanim. 2003 Mar 1; 22 (3): 242-4.

    AbstractA 67-year-old patient suffering from an ocular myasthenia gravis was scheduled for an elective ENT surgery. General anaesthesia was induced intravenously. Neuromuscular responses after train-of-four stimulation were normal at both the adductor pollicis (T(4)/T(1) = 1) and the corrugator supercilii (4 visual responses). Then cisatracurium (0,15 mg kg(-1)) was administered to allow tracheal intubation. The laryngoscopy attempted 45 s after cisatracurium injection (no response at the supercilii, T(1)/T(0) = 1 at the adductor pollicis) was unsuccessful because of closing and moving vocal cords. The second attempt was successful 4 min after cisatracurium injection (no response at the corrugator supercilii, T(1)/T(0) = 0.05 at the adductor pollicis). Residual neuromuscular blockade was antagonized at the end of surgery (1 h long) allowing an uneventful extubation. We concluded that monitoring neuromuscular blockade at the corrugator supercilii to assess the intubating conditions is not recommended in a case of ocular myasthenia gravis.

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