The prognostic value of admission blood pressure in patients with acute stroke.

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Abstract
Patients with acute stroke are often found to have high blood pressures at hospital admission. Previous studies have shown variable results regarding the prognostic value of high blood pressure in acute stroke. The aim of this study was to investigate the prognostic value of admission blood pressure in a population-based sample of patients with acute stroke. Eighty-five patients with intracerebral hemorrhage and 831 with ischemic disease were included in the study. The relations between admission blood pressure and 30-day mortality were studied by logistic regression analyses. High blood pressure in patients with impaired consciousness on hospital admission was significantly related to 30-day mortality in patients with intracerebral hemorrhage (P = .037) and in patients with ischemic disease (P < .0001). In patients without impaired consciousness, high blood pressure at time of admission was not related to increased mortality at 30 days. High admission blood pressure in alert stroke patients was not related to increased mortality. Stroke patients with impaired consciousness showed higher mortality rates with increasing blood pressure. However, this does not provide a basis for recommending antihypertensive therapy for such patients.