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Stroke, Vol 23, 1662-1667, Copyright © 1992 by American Heart Association

ARTICLES

Is cerebral angiography indicated in infective endocarditis?

JH van der Meulen, W Weststrate, J van Gijn and JD Habbema
Center for Clinical Decision Sciences, Erasmus University, Rotterdam, The Netherlands.

BACKGROUND AND PURPOSE: Patients with infective endocarditis may develop intracranial mycotic aneurysms. Whether these patients should undergo cerebral angiography followed by prophylactic surgery if an aneurysm is detected is an unresolved question. METHODS: We estimated the probability of survival 12 weeks after the diagnosis of infective endocarditis on the basis of data available in the literature. RESULTS: For a 40-year-old female patient with right-sided hemiplegia, the 12- week survival is estimated to be 83.75% without angiography and 83.65% with angiography; the specific mortality of intracranial mycotic aneurysms is relatively small but increases by 40% (from 0.25% to 0.35%) if angiography is performed. The risk of aneurysm rupture in infective endocarditis and the mortality from rupture appear to be the most important factors that affect the analysis. CONCLUSIONS: Cerebral angiography should not be performed routinely in patients with infective endocarditis. Specific subgroups in whom such a policy might be beneficial have not yet been identified.

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