Clinical evaluation of double-burst stimulation. Its relationship to train-of-four stimulation.
Double-burst stimulation was compared with train-of-four stimulation in 23 adult patients receiving atracurium. Train-of-four was interrupted in 11 subjects every 2 minutes by one double-burst stimulation, and re-applied 6-30 seconds later; the height of the first double-burst response, compared with its control, was depressed slightly more than T1. The relationship between double-burst stimulation ratio and train-of-four ratio was indistinguishable from the line of identity. The train-of-four response, if repeated more than 12 seconds after double-burst stimulation, was not depressed compared with pre double-burst stimulation values. Fifteen anaesthetists were asked to detect fade manually in the second part of the study, while train-of-four was recorded on the opposite arm. One hundred and fourteen determinations were made in 12 patients. Fade was detected manually more often with double-burst stimulation than with TOF.
Gill
S S
SS
Department of Anaesthesia, Royal Victoria Hospital, Montreal, Quebec, Canada.
Donati
F
F
Bevan
D R
DR
D001279:Atracurium; D004558:Electric Stimulation; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D009119:Muscle Contraction / Q000502:physiology; D009407:Nerve Block; D009469:Neuromuscular Junction / Q000187:drug effects / Q000502:physiology*; D013997:Time Factors
D001279:Atracurium