Anaesthesia
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Serial blood glucose estimations were made in 30 women undergoing elective Caesarean section under epidural anaesthesia, 2 litres of Hartmann's solution having been rapidly infused as a circulatory preload Neonatal blood glucose estimations were made of cord blood at birth and 1 and 2 hours post delivery. A small rise in maternal blood glucose occurred during the period of preloading and time before delivery, which was not statistically significant (p greater than 0.05). There was no biochemical or clinical evidence of neonatal hypoglycaemia. We conclude that despite rapid infusion of non-dextrose crystalloid solution there is neither danger of a relative maternal hypoglycaemia in fasted mothers nor neonatal hypoglycaemia, and offer an argument that even small amounts of dextrose contained in any preloading mixture are unnecessary.
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Randomized Controlled Trial Comparative Study Clinical Trial
Nausea and vomiting in day-case dental anaesthesia. The use of low-dose droperidol.
The anti-emetic effects of low-dose droperidol (1.25 mg), ultra-low-dose droperidol (0.25 mg) and a placebo were compared in patients admitted for day-case dental anaesthesia. Ultra-low-dose droperidol produced a significant decrease in the subjective feeling of nausea without delaying recovery or discharge from the hospital (p less than 0.05). Low-dose droperidol did not significantly reduce nausea (p greater than 0.05) and prolonged the recovery time (p less than 0.05).
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Randomized Controlled Trial Comparative Study Clinical Trial
Comparison of intubating conditions with atracurium, vecuronium and pancuronium.
A blind trial, comparing time of onset of satisfactory conditions for tracheal intubation with atracurium 0.6 mg/kg, vecuronium 0.1 mg/kg and pancuronium 0.1 mg/kg is described. Intubation was attempted at 30-second intervals in 60 patients, randomly allocated to receive one of the above muscle relaxants. ⋯ Patients receiving either vecuronium 0.1 mg/kg or pancuronium 0.1 mg/kg were able to be intubated between 60 and 240 seconds. The results showed a statistically significant earlier onset of satisfactory intubating conditions with atracurium than with vecuronium or pancuronium in these doses but no difference between vecuronium and pancuronium.
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A case is presented of a patient who required anaesthesia for the removal of an inhaled silver tracheostomy tube. The anaesthetic problems are discussed. Regular inspection of silver tracheostomy tubes is recommended.