Anaesthesia
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Comparative Study Clinical Trial Controlled Clinical Trial
Isoflurane, desflurane and sevoflurane for carotid endarterectomy.
After carotid endarterectomy under general anaesthesia, the rapid elimination of desflurane and sevoflurane may allow earlier postoperative neurological assessment than after the use of isoflurane. However, desflurane may be associated with tachycardia and hypertension and may therefore increase cardiovascular risk. ⋯ The times to extubation, movement on command and consciousness were shorter after desflurane and sevoflurane than after isoflurane anaesthesia. Postoperative pain, nausea, vomiting and shivering were similar in the three study groups.
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Comparative Study
The effects of syringe plunger design on drug delivery during vertical displacement of syringe pumps.
Fluid delivery from four types of commercially available 50-ml syringes was measured using an electronic balance at an infusion rate of 1 ml.h(-1). Retrograde aspiration volume and zero-drug delivery time were recorded after lowering the syringe pump by 50 cm. Syringe compliance was calculated from the volume of bolus released after occlusion at 100 mmHg. ⋯ Syringe design affected the internal syringe compliance. All syringes were associated with potentially relevant zero-drug delivery times after moderate vertical displacement. To minimise this risk, vertical displacement of syringe pumps delivering highly vasoactive drugs should be avoided.
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Letter Case Reports
Combined emergency Caesarean section and intracerebral aneurysm clipping.
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Anaesthetists are inaccurate when identifying lumbar spinal interspace level using bony landmarks.
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