Anaesthesia
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Randomized Controlled Trial Clinical Trial
Nitrous oxide anaesthesia and vomiting. The effect of nitrous oxide anaesthesia on the incidence of vomiting following gynaecological laparoscopy.
Eighty-seven patients undergoing routine laparoscopy were divided randomly into two groups to study the effect of nitrous oxide anaesthesia on the incidence of postoperative vomiting. Patients in group A received nitrous oxide as part of their anaesthetic, while in group B nitrous oxide was omitted. Significantly fewer patients in group B vomited when compared with group A (17 percent and 49 percent respectively; p less than 0.005). We suggest that an anaesthetic technique which avoids nitrous oxide may be especially indicated in patients undergoing laparoscopy.
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The demands made upon the Bristol obstetric flying squad over the past 14 years have been analysed. During this period, the number of calls received per year has decreased dramatically. ⋯ Of importance to anaesthetists is the gross reduction in the number of cases where it is necessary to give anaesthesia 'in the field'. This may lead to complacency and lack of familiarity with the equipment carried by the flying squad.