Journal of clinical anesthesia
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Randomized Controlled Trial Comparative Study Clinical Trial
Postoperative analgesia and plasma levels after transdermal fentanyl for orthopedic surgery: double-blind comparison with placebo.
To determine whether transdermal fentanyl can provide a significant component of postoperative analgesia. ⋯ Efficacy of transdermal fentanyl for postoperative pain relief is shown, but intense respiratory depression is sometimes seen.
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Randomized Controlled Trial Clinical Trial
Nebulized bupivacaine attenuates the heart rate response following tracheal intubation.
To determine whether nebulized bupivacaine attenuates the acute hemodynamic response to laryngoscopy and intubation. ⋯ Nebulized 0.75% bupivacaine was only partially effective in blunting the hemodynamic response to tracheal intubation.
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Comparative Study Clinical Trial Controlled Clinical Trial
Assessment of patient position for fiberoptic intubation using videolaryngoscopy.
To compare laryngoscopic appearance obtained during flexible fiberoptic laryngoscopy with the patient's atlanto-occipital joint in the neutral and extended positions. ⋯ Atlanto-occipital extension is a useful maneuver during attempted fiberoptic intubation.
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To determine whether the lower solubility of desflurane, over that of isoflurane, enflurane, and halothane, favors its use in low-flow anesthesia. ⋯ At low flows, FD provides a reasonable surrogate of F1 and FA for desflurane, but not for isoflurane, enflurane, or halothane. The rapid and predictable titrability of desflurane favors its safe use in low-flow technique.
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To assess the factors affecting the distance from skin to epidural space. ⋯ Both the patient's weight and position during epidural needle placement are important factors influencing DS-ES. A change from the sitting to the lateral position may increase DS-ES, causing catheter dislodgment and consequent inadequate analgesia. Clinical studies relating DS-ES to inadequate analgesia must take these factors into account.