Cooling therapy for acute stroke

Correia, M.; Silva, M.; Veloso, M.

http://hdl.handle.net/10400.16/526

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Authors

Correia, M.

Silva, M.

Veloso, M.

Abstract(s)

Abstract BACKGROUND: Recent studies in acute stroke patients have shown an association between body temperature and prognosis. OBJECTIVES: Our objective was to assess the effects of cooling when applied to patients with acute ischaemic stroke or primary intracerebral haemorrhage. SEARCH STRATEGY: We searched the Cochrane Stroke Group's trial register (last searched in March 1999), plus MEDLINE searched up to November 1998 and EMBASE searched from January 1980 to November 1998. We contacted investigators, pharmaceutical companies and manufacturers of cooling equipment in this field. SELECTION CRITERIA: All completed randomised controlled trials or controlled clinical trials, published or unpublished, where cooling therapy (therapy given by physical devices or antipyretic drugs primarily to lower body temperature independently of basal temperature at the beginning of treatment) was applied up to two weeks of an acute ischaemic stroke or primary intracerebral haemorrhage. DATA COLLECTION AND ANALYSIS: Two reviewers independently searched for relevant trials. MAIN RESULTS: No randomised trials or controlled trials were identified; one placebo-controlled trial of metamizol is currently underway. REVIEWER'S CONCLUSIONS: There is currently no evidence from randomised trials to support the routine use of physical or chemical cooling therapy in acute stroke. Since experimental studies showed a neuroprotective effect of hypothermia in cerebral ischaemia, and hypothermia appears to improve the outcome in patients with severe closed head injury, trials with cooling therapy in acute stroke are warranted.