Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Randomized Controlled Trial Clinical Trial
Propofol reduces succinylcholine induced increase of masseter muscle tone.
Succinylcholine is known to increase the tone of the masseter muscles. As excessive jaw tension may complicate rapid sequence induction, we investigated three induction techniques, all including the use of succinylcholine, with respect to masseter muscle tone, neuromuscular blockade, intubation conditions, and time course of intubation. ⋯ Jaw tension after administration of succinylcholine is influenced by the choice of induction agent. The increase of masseter muscle tone is lower following propofol or thiopentone/atracurium induction than with thiopentone alone.
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Randomized Controlled Trial Comparative Study Clinical Trial
Comparative effects of desflurane and isoflurane on recovery after long lasting anaesthesia.
Increasing the duration of exposure could lead to amplification of the pharmacokinetic differences between halogenated anaesthetic agents. The aim of our study was to compare anaesthesia recovery after desflurane and isoflurane, administered for more than three hours. ⋯ After long duration anaesthesia lasting up to three hours, desflurane allowed recovery and extubation in approximately half the time required by isoflurane. Less variability in results suggests better predictability of recovery with desflurane.
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Randomized Controlled Trial Clinical Trial
An evaluation of a modified Macintosh laryngoscope in a manikin.
In this manikin study a modified Macintosh blade was prospectively compared with its original focussing on the forces exerted on the maxillary incisor teeth and intubation success. The modified blade, a standard Macintosh blade with a reduced proximal flange, was intended to reduce the forces exerted on the maxillary incisors. ⋯ The use of the modified blade resulted in a reduction of the forces on the maxillary incisors whereas the intubation success rate was the same as with the original. Studies in manikins can be useful in comparative laryngoscope testing.