Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Randomized Controlled Trial Comparative Study Clinical Trial
The addition of droperidol or clonidine to epidural tramadol shortens onset time and increases duration of postoperative analgesia.
To compare tramadol alone and the combinations of either tramadol-clonidine or tramadol-droperidol with regard to analgesic and adverse effects. ⋯ We conclude that epidural tramadol in combination with droperidol or clonidine prolongs the duration of analgesia; however, droperidol appears to be a better alternative when adverse effects and antiemetic properties are taken into consideration.
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Randomized Controlled Trial Clinical Trial
Intradermal sufentanil does not improve lidocaine-induced local anesthesia.
Peripheral opioid receptors may result in antinociceptive effects when occupied by opioids. This study examined intradermally injected sufentanil (S), a highly lipid soluble opioid, administered with and without lidocaine (L), in a thermal pain model. ⋯ These results suggest that intradermal sufentanil alone has no analgesic effect. Further, in combination with lidocaine, sufentanil does neither potentiate nor prolong the analgesic effect of lidocaine.
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Randomized Controlled Trial Clinical Trial
Increased body mass index per se is not a predictor of difficult laryngoscopy.
We investigated the association between morbid obesity and difficult laryngoscopy (DL). ⋯ Increased age, male sex, TMJ pathology, Mallampati 3 and 4, a history of obstructive sleep apnea and abnormal upper teeth were associated with a higher incidence of DL. The magnitude of BMI had no influence on difficulty with laryngoscopy.
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Randomized Controlled Trial Clinical Trial
Cerebrovascular reactivity to carbon dioxide is preserved during hypocapnia in children anesthetized with 1.0 MAC, but not with 1.5 MAC desflurane.
Maintenance of cerebrovascular reactivity to CO(2) (CCO(2)R) is important during neurosurgical anesthesia. This study was designed to determine the effect of different desflurane concentrations on CCO(2)R in children. ⋯ CCO(2)R is preserved during hypocapnia in children anesthetized with 1.0 MAC, but not with 1.5 MAC desflurane. The lack of further increase in Vmca at higher EtCO(2) concentrations implies that desflurane may cause significant cerebral vasodilatation in children. This may have important implications in children with reduced intracranial compliance.
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Clinical Trial
Both the OxyArm and Capnoxygen mask provide clinically useful capnographic monitoring capability in volunteers.
To compare the capnography monitoring performance of the new OxyArm (OA) with the Capnoxygen mask (CM), a conventional oxygen mask with a carbon dioxide sampling port. ⋯ This study suggests that the OA and CM can prove useful for respiratory monitoring and oxygen delivery in spontaneously breathing volunteers, and the OA could potentially be used as an alternative to the conventional methods of oxygen delivery and CO(2) sampling in patients.