Journal of clinical anesthesia
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Randomized Controlled Trial Clinical Trial
End-tidal carbon dioxide monitoring during awake blind nasotracheal intubation.
To test the usefulness of the end-tidal carbon dioxide monitor in facilitating awake blind nasotracheal intubation in patients with potentially difficult airways. ⋯ Monitoring of end-tidal carbon dioxide is useful and valuable in both facilitating blind nasotracheal intubation and avoiding profound hypoventilation.
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Randomized Controlled Trial Clinical Trial
Effects of prostaglandin E1 on the cardiovascular response to tracheal intubation.
To evaluate the efficacy of prostaglandin E1 in attenuating the hypertensive response to laryngoscopy and intubation. ⋯ A single rapid intravenous administration of prostaglandin E1 is a practical pharmacologic and safe method to attenuate the hypertensive response to tracheal intubation. The use of 0.6 micrograms/kg of prostaglandin E1 as a supplement during induction is recommended for reducing the pressor response to intubation on the basis of rate-pressure product and mean arterial pressure following intubation as an index.
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Randomized Controlled Trial Comparative Study Clinical Trial
Lidocaine hydrochloride versus lidocaine bicarbonate for epidural anesthesia in outpatients undergoing arthroscopic surgery.
In a randomized, double-blind study, 24 patients undergoing outpatient arthroscopic knee surgery were divided into two groups. Group 1 received 2% lidocaine hydrochloride; group 2 received pH-adjusted 1.73% lidocaine made by adding 1 ml of NaHCO3 44.6 meq/L to 10 ml of 2% lidocaine hydrochloride. Epidural anesthesia was administered in the sitting position. ⋯ Postoperatively, all patients reported having experienced a satisfactory anesthetic without any complications. The authors conclude that epidural anesthesia is a satisfactory technique for outpatient arthroscopic surgery. There appears to be no advantage to adding bicarbonate to lidocaine anesthetic solutions for use in epidural anesthesia.
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Randomized Controlled Trial Comparative Study Clinical Trial
Gastric residual volume in infants and children following a 3-hour fast.
The effect of a 3-hour versus a 10-hour preoperative fasting interval on the gastric residual volume and gastric pH of pediatric patients was evaluated. Forty-four healthy infants, 1 month to 5 years of age, were randomly assigned to one of two groups. The 3-hour nil per os (NPO) group consisted of 19 infants kept NPO for 3 hours following ingestion of up to 4 ounces of 5% dextrose in water (D5W). ⋯ Gastric residual volume was significantly greater in volume when measured by the dye-dilution technique than it was when measured by the aspiration technique in both the 10-hour (p less than 0.009) and the 3-hour (p less than 0.0009) NPO groups. Complete aspiration of a known volume of fluid injected through the orogastric tube was not possible in 23 of the 44 (52.4%) infants. Mean gastric pH was less than 2.0 in both groups.(ABSTRACT TRUNCATED AT 250 WORDS)