Anaesthesia
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Clinical Trial Controlled Clinical Trial
The contamination of volatile anaesthetics in an in-circle vaporizer with water during prolonged closed-circle anaesthesia.
The amount of water present in sevoflurane in an in-circle vaporizer after long procedures was measured. This demonstrated that the sevoflurane residue was contaminated with a small amount of water.
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We investigated the correlation between the scores attained on computerised psychometric tests, measuring psychomotor and information processing aptitudes, and learning obstetric epidural anaesthesia. Ten anaesthetic trainees performed an adaptive tracking task (ADTRACK 3) and one information management task (MAZE) from the MICROPAT testing system. They then embarked on a standardised obstetric anaesthesia training programme prior to performing obstetric on-call duties. ⋯ There was no significant correlation between epidural failure rate and MAZE scores. The ratios of the mean epidural failure rate for the last 25 epidurals to the mean for the first 25 epidurals were not significantly correlated with ADTRACK 3 or MAZE scores. Psychomotor abilities appear to be poor determinants of trainees' initial proficiency at obstetric epidural anaesthesia or of trainees' rates of progress during early obstetric epidural training, but may be determinants of an individual's performance after the initial training phase.
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Randomized Controlled Trial Clinical Trial
Tracheal intubating conditions after induction with sevoflurane 8% in children. A comparison with two intravenous techniques.
We studied tracheal intubating conditions in 120 healthy children, aged 3-12 years, in a blinded, randomised clinical trial. Children were randomly allocated to one of three groups: group PS, propofol 3 mg.kg-1 and succinylcholine 1 mg.kg-1 (n = 40); group PA, propofol 3 mg.kg-1 and alfentanil 10 microg.kg-1 (n = 40); group SF, sevoflurane 8% in 60% nitrous oxide in oxygen for 3 min (n = 40). ⋯ Children receiving propofol and succinylcholine or sevoflurane had better intubating conditions overall than those given propofol and alfentanil (p < 0.01). In conclusion, anaesthetic induction and tracheal intubation using sevoflurane 8% for 3 min is a satisfactory alternative to propofol with succinylcholine in children.