Journal of clinical anesthesia
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Randomized Controlled Trial Clinical Trial
Using the bubble inclinometer to measure laryngeal tilt and predict difficulty of laryngoscopy.
To evaluate a simple device, the bubble inclinometer, to measure degrees of laryngeal tilt (LT) for predicting difficulty of direct laryngoscopy using a Macintosh #3 laryngoscope. ⋯ The bubble inclinometer accurately and reproducibly measures relative LT, and the anterior tilt of the larynx directly correlates with the ability to see the laryngeal opening during direct laryngoscopy with a Macintosh #3 laryngoscope.
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Randomized Controlled Trial Clinical Trial
Prostaglandin E1 as a hypotensive drug during general anesthesia for total hip replacement.
To determine the effect of intravenous administration of prostaglandin E1 (PGE1) in inducing controlled hypotension during general anesthesia. ⋯ These data suggest that PGE1 can be used safely to induce hypotension, thereby reducing blood loss during total hip replacement with general anesthesia.
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Randomized Controlled Trial Comparative Study Clinical Trial
Which induction drug for cesarean section? A comparison of thiopental sodium, propofol, and midazolam.
To determine maternal and neonatal effects of three different induction drugs (thiopental sodium, propofol, and midazolam) for cesarean section. ⋯ Thiopental still remains the first-choice induction drug for cesarean section. The slow induction time with midazolam may put the mother at risk for pulmonary inhalation. A plane of anesthesia that may risk awareness and potential neonatal depression is the main drawback of the two newer induction drugs.
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Randomized Controlled Trial Clinical Trial
Using the laryngeal indices caliper to predict difficulty of laryngoscopy with a Macintosh #3 laryngoscope.
(1) To evaluate a device of the authors' design, the laryngeal indices caliper, which quantitates the position of the anterior edges of the larynx relative to the upper teeth and the external auditory canals; (2) to determine how relative laryngeal position affects ease of direct laryngoscopy with a Macintosh #3 laryngoscope. ⋯ (1) Laryngeal tilt is a good predictor of difficulty of laryngoscopy with a Macintosh #3 laryngoscope; (2) the laryngeal indices caliper is a simple pocket device to measure LT indirectly.
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Randomized Controlled Trial Comparative Study Clinical Trial
Spinal or systemic analgesia after extensive spinal surgery: comparison between intrathecal morphine and intravenous fentanyl plus clonidine.
To compare two different methods of postoperative analgesia after extensive spinal fusion. ⋯ This study shows that there is a major risk of respiratory depression with a single intrathecal dose of morphine 0.3 mg to control postoperative pain after scoliosis surgery. Systemic clonidine-fentanyl may be a possible approach to the postoperative pain treatment of this surgery.