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  • Title: Barbiturates in brain ischaemia.
    Author: Shapiro HM.
    Journal: Br J Anaesth; 1985 Jan; 57(1):82-95. PubMed ID: 3881116.
    Abstract:
    This review has indicated that barbiturates are useful in controlling ICP during anaesthesia in patients with intracranial hypertension. While laboratory data indicate that intraoperative administration of barbiturates during episodes of transient cerebral ischaemia, associated with surgical revascularization procedures, should be efficacious, current intraoperative results claiming benefit are anecdotal. Continuous high-dose barbiturate therapy (induced barbiturate coma) for occlusive stroke and persistently increased intracranial pressure is currently undergoing clinical trials. While it is clear that this therapy can often reduce increased ICP in head injured patients, its influence on neurological outcome remains to be determined by a multicentre trial at present in progress. Despite evidence that high-dose barbiturate therapy can reduce the area of infarction in occlusive stroke in the laboratory, organized clinical trials have not yet commenced. Until more definitive knowledge is available concerning the influence of high-dose barbiturate therapy in treating different forms of cerebral ischaemia, its application should be viewed sceptically and limited to centres willing to create an organized data base for inter-institutional evaluation of this form of treatment. If barbiturate therapy proves successful and the mechanisms involved are better understood, drugs with fewer side-effects and risks may become available to combat cerebral ischaemia.
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