Anaesthesia
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Comment Letter Case Reports
Kinking of intubating laryngeal mask tracheal tubes following fibreoptic intubation.
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Randomized Controlled Trial
Continuous patient-controlled epidural infusion of levobupivacaine plus sufentanil in labouring primiparous women: effects of concentration.
The effects of two different concentrations of epidural levobupivacaine were compared when used to provide analgesia for labour. Primiparous women in spontaneous uncomplicated labour were enrolled in a prospective, randomised and partially double-blinded study. The study solutions were either 0.568 mg x ml(-1) levobupivacaine (low concentration group) or 1.136 mg x ml(-1) levobupivacaine (high concentration group), with sufentanil 0.45 microg x ml(-1) added to both solutions. ⋯ The dose of levobupivacaine administered was higher and sometimes overstepping recommended limits in the high concentration group, but with no observed increase in side-effects. The choice between these two concentrations may still be made according to the patient's and the practitioner's preferences. The effects of an intermediate concentration should be studied in the future.
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Randomized Controlled Trial Comparative Study Retracted Publication
Differences between bispectral index and spectral entropy during xenon anaesthesia: a comparison with propofol anaesthesia.
We enrolled 114 patients, aged 65-83 years, undergoing elective surgery (duration > 2h) into a randomised, controlled study to evaluate the performance of bispectral index and spectral entropy for monitoring depth of xenon versus propofol anaesthesia. In the propofol group, bispectral index and state entropy values were comparable. ⋯ Bispectral index and spectral entropy considerably diverged during xenon but not during propofol anaesthesia. We therefore conclude that these measures are not interchangeable for the assessment of depth of hypnosis and that bispectral index is likely to reflect actual depth of anaesthesia more precisely compared with spectral entropy.