• Eur J Anaesthesiol · May 1991

    Randomized Controlled Trial Clinical Trial

    Is the diagnosis of significant residual neuromuscular blockade improved by using double-burst nerve stimulation?

    Although DBS is more sensitive than TOFC, manual assessment of DBS fade can only detect residual paralysis at TOF ratio < 0.7.

    pearl
    • N Ueda, T Muteki, H Tsuda, S Inoue, and H Nishina.
    • Department of Anesthesiology, Kurume University, School of Medicine, Fukuoka, Japan.
    • Eur J Anaesthesiol. 1991 May 1;8(3):213-8.

    AbstractThis study evaluated the use of double-burst stimulation (DBS) in the diagnosis of significant post-operative residual neuromuscular blockade. Ninety patients were allocated to three equal groups. In Group A the degree of residual neuromuscular blockade was assessed by clinical criteria (CC) only; in Group B by CC and manual evaluation of the response to train-of-four (TOF) nerve stimulation; and in Group C by CC, manual evaluation of the response to TOF, and DBS stimulation. Immediately after arrival in the recovery room mechanical twitch was recorded using TOF stimulation. The mean (+/- SD) TOF ratios were 0.53 +/- 0.19 in Group A, 0.67 +/- 0.11 in Group B and 0.81 +/- 0.08 in Group C. The incidence of a TOF ratio of less than 0.7 was 83.3% in Group A, 56.7% in Group B and 6.7% in Group C. It is concluded that the use of DBS enabled the anaesthetist to recognize significant residual block and thus reduced the incidence of post-operative residual neuromuscular blockade.

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    This article appears in the collection: Neuromuscular myths: the lies we tell ourselves.

    Notes

    pearl
    1

    Although DBS is more sensitive than TOFC, manual assessment of DBS fade can only detect residual paralysis at TOF ratio < 0.7.

    Daniel Jolley  Daniel Jolley
     
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