Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Randomized Controlled Trial Clinical Trial
Sevoflurane exposure time and the neuromuscular blocking effect of vecuronium.
To determine the effect of sevoflurane exposure time on the duration of vecuronium neuromuscular blockade. ⋯ Sevoflurane produced time-dependent potentiation of vecuronium. After 30 min exposure, 25% recovery was prolonged by 89% and after 60 min by more than 100% compared with the control group.
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Randomized Controlled Trial Clinical Trial
Reduced efficacy of simulated epidural test doses in sevoflurane-anesthetized adults.
To determine the hemodynamic responses to, and the efficacy of epinephrine-containing epidural test doses, during sevoflurane anesthesia, based on the conventional heart rate (HR) increase > or = 20 beats x min(-1), the modified HR increase if > or = 10 beats x min(-1), and the systolic blood pressure (SBP) increase 15 mmHg criteria. ⋯ During stable sevoflurane anesthesia, peak HR increase > or = 10 beats x min(-1) should be regarded as a positive response with end-tidal sevoflurane concentration < or = 1%, and peak SBP increase > or = 15 mmHg is applicable at sevoflurane concentrations between 0.5 and 2%.
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To evaluate the accuracy of a new non-invasive method (Vasotrac) to measure blood pressure (BP) with accompanying arterial wave-form and pulse-rate display when compared with BP and waveform measured invasively. ⋯ The Vasotrac system displayed an arterial waveform which was similar to that obtained directly and measured BP and pulse rate accurately. It should be a convenient device to measure BP continually in a non-invasive fashion.