European journal of anaesthesiology
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Comparative Study
Postoperative changes in the full-field electroretinogram following sevoflurane anaesthesia.
We tested the hypothesis that disturbances of the visual pathway persist following general anaesthesia, even after normal clinical discharge criteria have been met. ⋯ Postoperative electroretinogram abnormalities are consistently present in patients who have undergone N2O/sevoflurane anaesthesia. These abnormalities persist beyond the time at which standard clinical discharge criteria have been met.
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The kneeling prone position is often used for low back surgery in order to decrease intraoperative bleeding and increase the surgical exposure of the vertebral canal. The aim of this study was to assess effects of the kneeling prone position on respiratory gas exchange focusing on oxygen consumption and early changes in oxygenation. ⋯ The present study demonstrates that the kneeling prone position improves oxygenation and that the mechanisms involved are fast in onset. Furthermore, the prone position does not change oxygen consumption although alveolar ventilation is significantly reduced. The changes in alveolar ventilation could possibly be the result of circulatory changes caused by the prone position, but further studies are needed to clarify that hypothesis.
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Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial
Conventional stepwise vs. vital capacity rapid inhalation induction at two concentrations of sevoflurane.
A multicentre study was conducted to compare three methods of inhalation induction with sevoflurane in adult premedicated patients. ⋯ Inhalation induction of anaesthesia with sevoflurane with the three techniques tested is safe, reliable and well accepted by the patients. The vital capacity rapid inhalation group primed with sevoflurane 8% was the fastest method with no relevant side-effects.
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Randomized Controlled Trial Comparative Study Clinical Trial
Comparison of patient-controlled and operator-controlled conscious sedation for restorative dentistry.
The use of midazolam for conscious sedation is an accepted method of anxiety control in restorative dentistry. A lack of predictability in its effects requires the dose of midazolam to be adjusted to individual patient's requirements. We determined whether patient-controlled sedation was a suitable alternative to operator-controlled sedation in restorative dentistry. ⋯ This study shows that patient-controlled sedation is a suitable alternative to operator-controlled sedation in the management of anxious dental patients.