Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Apr 1998
Epidural anesthesia and the thermoregulatory responses to hyperthermia--preliminary observations in volunteer subjects.
Clinical reports associate the use of epidural anesthesia with an increase in core temperature in women in labor. We tested the hypothesis that epidural anesthesia alters thermoregulatory responses to hyperthermia in human volunteers. ⋯ An epidural block alters the thermoregulatory responses to warming by increasing the threshold for thermoregulatory sweating and, in some cases, preventing leg sweating.
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Acta Anaesthesiol Scand · Apr 1998
Combined effect of patient variables on sensory level after spinal 0.5% plain bupivacaine.
The combined effect of age, weight, height, and vertebral column length (VCL) on the distribution of isobaric 0.5% bupivacaine within the subarachnoid space is unclear. The aim of the present study was to evaluate the combined influence of these patient variables on the upper sensory level and on its predictability. ⋯ Multiple regression analysis revealed that age, weight, and height significantly correlated with the sensory level after subarachnoid injection of plain bupivacaine. The low predictive value suggests that patient factors other than age, weight, or height add to cephalad spread of SA.
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Acta Anaesthesiol Scand · Apr 1998
Retinyl palmitate injections reduce serum levels and effects of endotoxin on systemic haemodynamics and oxygen transport in the pig.
Retinyl palmitate [(RP) 230 IU.kg(-1)] modulates the circulatory and respiratory responses of a subsequent infusion of endotoxin in the pig. The aims of this study were: I. To determine if RP (2300 IU.kg(-1)) affects the serum endotoxin levels in this model. II. To evaluate the effect of this dose of RP on circulatory and respiratory variables in our porcine model. III. To investigate the levels of RP and neutrophil count in porcine endotoxaemia. ⋯ Pretreatment with RP (2300 IU.kg(-1)) counteracts the progressive increase in serum endotoxin levels in porcine endotoxaemia.
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Acta Anaesthesiol Scand · Apr 1998
Randomized Controlled Trial Comparative Study Clinical TrialAnaesthesia for videoarthroscopy of the knee. A comparison between desflurane and sevoflurane.
The newer inhalational agents desflurane and sevoflurane have a low blood-gas partition coefficient and are not very fat soluble, and consequently recovery is rapid and smooth. Very few studies have been published concerning adults where a direct comparison has been made between sevoflurane and desflurane in the ambulatory setting. ⋯ Early and intermediate (psychomotor) recovery is quicker in the desflurane compared to the sevoflurane group, but there is no difference in discharge times between the groups.