Journal of clinical anesthesia
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Randomized Controlled Trial Clinical Trial
Intravenous trimethaphan during epidural plus general anesthesia decreases the direct radial artery pressure lower than the brachial artery pressure.
To determine whether vasodilators such as sodium nitroprusside (SNP) and trimethaphan (TMP) produce a pressure difference between the radial artery and the brachial artery during epidural plus general anesthesia or simple general anesthesia. ⋯ Our results demonstrate that TMP decreases the direct radial artery systolic and mean pressures to levels below the brachial artery systolic and mean pressures in patients who received epidural plus general anesthesia.
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Randomized Controlled Trial Comparative Study Clinical Trial
A comparison of sevoflurane with halothane in outpatient adenotomy in children with mild upper respiratory tract infections.
To investigate the efficacy and safety of sevoflurane compared with halothane in pediatric outpatient ear-nose-throat (ENT) surgery during the induction, maintenance, emergence, and recovery of anesthesia. ⋯ Sevoflurane provides a safe and rapid anesthetic induction with no differences in complications during the induction, maintenance, and emergence period. With sevoflurane, the time of emergence and recovery was significantly shorter. The characteristics of sevoflurane as evaluated in the present study make it a suitable anesthetic in pediatric outpatient surgery even in the presence of mild URI.
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Randomized Controlled Trial Clinical Trial
Evaluation of pain following electrocautery tubal ligation and effect of intraoperative fentanyl.
To evaluate pain following laparoscopic tubal sterilization (LTS) and the effects of supplemental intraoperative fentanyl. ⋯ Pain following LTS by electrocautery is of significant magnitude and may require relatively large doses of opioids for adequate management. Supplemental intraoperative fentanyl 1 microgram/kg did not produce a clinically significant reduction in either pain scores or opioid requirements.
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Comparative Study Clinical Trial Controlled Clinical Trial
Pulmonary vascular resistance and right ventricular function in morbid obesity in relation to gastric bypass surgery.
To investigate right ventricular function (RVF) during gastric bypass surgery in morbidly obese patients. To study the influence of obstructive sleep apnea syndrome on hemodynamics and RVF as a preoperative evaluation in morbidly obese patients. ⋯ The presence of chronic hypoxemia and hypercarbia in our morbidly obese patients with obstructive sleep apnea syndrome while awake, causes significant increases in PA pressure and PVR. We also demonstrated that RVEF did not change significantly during gastric bypass procedure despite significant decreases in PA pressure, PCWP, and PVR after opening the abdomen. This decrease in PA pressure and PVR may be caused by decreases in pleural pressure reflected by a concomitant decrease in esophageal pressure.
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Clinical Trial Controlled Clinical Trial
Effects of Trendelenburg and reverse Trendelenburg postures on lung and chest wall mechanics.
To test whether the Trendelenburg ("head-down") or reverse Trendelenburg ("head-up") postures change lung and chest wall mechanical properties in a clinical condition. ⋯ The Trendelenburg posture increases the mechanical impedance of the lung to inflation, probably due to decreases in lung volume. This effect may become clinically relevant in patients predisposed with lung disease and in obese patients.