Methohexital in dental anaesthesia.
نویسندگان
چکیده
IN the majority of anaesthetics given to patients in the dental surgery or clinic the agents used are nitrous oxide and oxygen with or without a supplement such as trichloroethylene. If nitrous oxide with oxygen or air is used alone then it is often difficult to obtain satisfactory conditions for the dentist without subjecting the patient to some degree of hypoxia. There is no doubt that hypoxia is harmful even if the effects are not always immediately apparent (Bedford, 1955). Tom (1956) and Mostert (1958) in this country have separately described a technique whereby nitrous oxide and oxygen can be administered without hypoxia but giving adequate analgesia and a quiescent patient, although they admit that induction may be rather prolonged. Mushin (1952) estimates that from 7 to 10 minutes is required to achieve saturation with nitrous oxide using 80 per cent nitrous oxide and 20 per cent oxygen. In addition in the so-called "resistant" patient satisfactory conditions sometimes cannot be achieved and even the addition of trichloroethylene does not always give good anaesthesia. Thiopentone is sometimes used for induction in these patients but the recovery period is often prolonged and, in the light of our present knowledge, the patient needs escorting home.
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عنوان ژورنال:
- British journal of anaesthesia
دوره 32 شماره
صفحات -
تاریخ انتشار 1960