Acta anaesthesiologica Belgica
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Acta Anaesthesiol Belg · Jan 1980
Comparative StudyCompared effects of enflurane and of halothane on the intracranial pressure and the cerebral perfusion pressure in the dog.
In this study, we compare the values of the systemic arterial pressure (S. A. P.), of the intracranial pressure (I. ⋯ In this group, the decrease in I. C. P. recorded in two thirds of the cases can be explained by the hypotensive effect of the anesthetics which decreased the hydrostatic pressure in the cerebral vascular bed, a maintenance element of the edema.
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ICI 35868 was used to induce anesthesia in 39 ASA I patients (9 male and 30 female, aged 17-64 years), scheduled to undergo minor surgical procedures. The first 6 patients were given 1.0 mg/kg, the next 22 1.5 mg/kg and the final 11 2.0 mg/kg ICI 35868 I. V. over 30 seconds, without premedication. ⋯ Other side effects were minor and of low incidence. Three minutes after induction of anesthesia, when assessments were complete, 23 patients were given a further dose of a conventional induction agent, as they were beginning to awaken, and anesthesia was maintained in all patients by inhalational techniques. There were no untoward events during maintenance of or on recover from anesthesia.
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Acta Anaesthesiol Belg · Jan 1980
Nerve blocking of the sciatic and femoral nerves. Continual block with vein catheter on 44 patients.
The accessibility of the sciatic nerve from three directions (anterior, lateral and posterior) has prevented many patients from being moved, especially those who would be endangered by a change of position. A vein catheter is introduced in accordance with the approved technique up to the selected point. The stylus is withdrawn, the catheter is fixed on the skin by a suture or adhesive plaster, and by the use of a precisely fitting syringe the chosen local anesthetic solution is perfused. By this technique we can reblock the patient.
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Acta Anaesthesiol Belg · Jan 1980
The action of inhalation anesthetics upon the lower oesophageal sphincter.
The lower oesophageal sphincter plays an important role as a gastro-oesophageal blocker. Its proper function as a reflux barrier for the prevention of regurgitation and aspiration during anesthesia is very important. ⋯ The inhalation of nitrous oxide-oxygen alone or in combination with 2 Vol. % halothane or enflurane resulted in a highly significant pressure drop (p < 0.001) at the lower oesophageal sphincter. All three anesthetics (nitrous oxide-oxygen, nitrous oxide-oxygen-halothane and nitrous oxide-oxygen-enflurane) caused a pressure rise at the distal oesophagus and a pressure decrease at the stomach.