Journal of clinical anesthesia
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Randomized Controlled Trial Comparative Study Clinical Trial
A comparison of techniques for placement of double-lumen endobronchial tubes.
To compare two methods of double-lumen endobronchial tube placement for thoracic surgery and to identify factors that provide a rational basis for placement method selection. ⋯ Both the blind and directed approaches resulted in successful left mainstem placement of the endobronchial tube in the majority of patients but either method may fail when used alone. More time was required using the directed approach. Operator experience with both methods will increase the likelihood of success. The choice of the initial approach may be influenced by patient factors as well as available equipment and personnel.
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Randomized Controlled Trial Clinical Trial
Consideration of the optimal epidural fentanyl doses in abdominal surgery.
To determine an optimal dose of epidural fentanyl in open abdominal surgery by examining the effects of different doses of epidural fentanyl in combination with or without low concentration of lidocaine on hemodynamic and endocrine responses to surgical stress. ⋯ Epidural fentanyl 3 micrograms/kg with 0.5% lidocaine may be most adequate for laparotomy because these doses caused neither bradycardia nor increments of norepinephrine perioperatively.
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Randomized Controlled Trial Comparative Study Clinical Trial
Prophylactic antiemetics for laparoscopic cholecystectomy: a comparison of perphenazine, droperidol plus ondansetron, and droperidol plus metoclopramide.
To compare the prophylactic administration of ondansetron plus droperidol, droperidol plus metoclopramide, and perphenazine to determine effects on postoperative nausea, vomiting, and sedation after laparoscopic cholecystectomy. ⋯ These three drug regimens are equivalent for antiemetic prophylaxis before laparoscopic cholecystectomy.
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Randomized Controlled Trial Clinical Trial
Oral clonidine premedication does not prolong analgesia after herniorrhaphy under subarachnoid anesthesia.
To determine the effect of oral clonidine premedication on duration of sensory and motor block, postoperative analgesia, hemodynamic stability, sedation, and respiratory parameters after subarachnoid anesthesia (SA). ⋯ In healthy patients, premedication with oral clonidine provided useful sedation and anxiolysis and stable hemodynamics, without prolongation of sensory and motor block. Side effects occurred only with clonidine 5 mcg/kg. Thus, a dose of 2.5 mcg/kg is recommended.
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Randomized Controlled Trial Clinical Trial
Alfentanil decreases the excitatory phenomena of sodium methohexital.
To evaluate the effects of alfentanil or lidocaine on the excitatory phenomena (myoclonus, cough, hiccough) caused by methohexital anesthesia and on the hemodynamic changes induced by retrobulbar block. ⋯ A small dose of alfentanil (5 micrograms/kg i.v.) decreases myoclonus and cough induced by sodium methohexital anesthesia i.v., resulting in improved quality of induction of anesthesia. Alfentanil also attenuates the cardiovascular responses caused by placement of a retrobulbar block.