Anaesthesia
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The use of the Association of Anaesthetists of Great Britain and Ireland checklist for anaesthetic machines, based on an oxygen analyser, was surveyed over a 5-week period in a teaching hospital. Fifty-five completed checklists were analysed; no problems developed during anaesthesia which were missed by the checklist. ⋯ The most frequent faults detected were the poor reliability of some oxygen analysers, absent ventilator disconnection alarms, and absent oxygen supply failure alarms on some older machines. Faults were found in 60% of the machines checked; 18% of these were deemed to be serious.
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Randomized Controlled Trial Comparative Study Clinical Trial
Diclofenac for analgesia after caesarean section.
The analgesic efficacy of a single intramuscular dose of 75 mg diclofenac given after elective Caesarean section was studied in 50 women in a double-blind randomised manner using a patient-controlled analgesia system. The mean 18 h papavaretum consumption of the placebo group was significantly greater (91.4 mg compared to 61.4 mg). Subjective experience of pain and observed sedation were significantly greater in the control group up to 6 h after operation.
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Randomized Controlled Trial Comparative Study Clinical Trial
Cardiovascular effects of fibreoptic oral intubation. A comparison of a total intravenous and a balanced volatile technique.
The cardiovascular response to fiberoptic oral intubation under total intravenous anaesthesia with propofol or a balanced volatile technique with thiopentone/enflurane was compared in 50 patients of physical status ASA 1 and 2 who were scheduled for elective ear, nose and throat surgery. Patients were randomly assigned to receive propofol or enflurane. There was no significant difference between the two anaesthetic techniques in haemodynamic profile either before, during or after fibreoptic intubation (the study design was adequate to detect a 20% difference with > 90% statistical power), in incidence of postoperative sore throat or in time taken for intubation. In no patient did the oxygen saturation decrease to below 95% or the CO2 tension exceed 5.8 kPa.