Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · May 1999
Randomized Controlled Trial Clinical TrialEEG bispectral index monitoring in sevoflurane or propofol anaesthesia: analysis of direct costs and immediate recovery.
Recent studies have suggested that electroencephalogram (EEG) bispectral index (BIS) monitoring can improve recovery after anaesthesia and save money by shortening patients' postoperative stay. We wanted to evaluate the direct costs of BIS monitoring and to measure immediate recovery after anaesthesia in patients with or without BIS monitoring. ⋯ BIS monitoring decreased the consumption of both propofol and sevoflurane and hastened the immediate recovery after propofol anaesthesia. Detailed cost analysis showed that the monitoring increased direct costs of anaesthesia treatment in these patients, mainly due to the price of special EEG electrodes used for relatively short anaesthesias.
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Acta Anaesthesiol Scand · May 1999
Randomized Controlled Trial Clinical TrialEffect of prostaglandin E1 and nitroglycerin on portal venous flow during hypothermic extracorporeal circulation: assessment by transesophageal echography.
Although several vasodilators are used to control vascular resistance during cardiac surgery, their effects on splanchnic circulation during extracorporeal circulation are unknown. We designed the present noninvasive study to evaluate the effect of prostaglandin E1 and nitroglycerin on portal venous flow during extracorporeal circulation using transesophageal echography. ⋯ The present results indicate that transesophageal echography may be a feasible tool to assess portal venous flow, and that prostaglandin E1 may improve the blood distribution to the splanchnic area and the liver during hypothermic extracorporeal circulation.
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Acta Anaesthesiol Scand · May 1999
Case ReportsInfiltration block for caesarean section in a morbidly obese parturient.
We report a case of a morbidly obese parturient (150 kg and 150 cm) for emergency lower segment caesarean section for dead foetus. Her pregnancy had been unsupervised. ⋯ Caesarean section was performed under infiltration block using lidocaine 0.5-1.0%. Her status improved postoperatively with aggressive physiotherapy, nursing in a semirecumbent position and oxygen supplementation.
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Acta Anaesthesiol Scand · May 1999
Comparative StudyA comparison of train-of-four monitoring: mechanomyography at the thumb vs acceleromyography at the big toe.
It is not known if the information on neuromuscular function obtained from the hand is interchangeable with that of the foot. In the present study the agreement of thumb mechanomyography with acceleromyography of the big toe was studied. ⋯ We conclude that clinically acceptable agreement between thumb mechanomyography and big toe acceleromyography was found for the period of no-twitch response, suggesting that the timing of supplemental doses of vecuronium can be guided by AMG at the big toe. However, the spontaneous recovery time agreement (to TOF ratio = 0.75) between the thumb and the big toe was poor.