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  • Title: Mycotic aneurysm, subarachnoid hemorrhage, and indications for cerebral angiography in infective endocarditis.
    Author: Salgado AV, Furlan AJ, Keys TF.
    Journal: Stroke; 1987; 18(6):1057-60. PubMed ID: 3686577.
    Abstract:
    We compared the clinical course of 68 patients with infective endocarditis and mycotic aneurysm and 147 patients with infective endocarditis but no mycotic aneurysm. Among the patients with mycotic aneurysm, 57% had subarachnoid hemorrhage without warning. Forty-three percent had a neurologic prodrome 2 days to 18 months (median 17 days) prior to discovery of the mycotic aneurysm. A focal deficit consistent with embolism was the most common prodrome (23%). However, there was no significant difference in the frequency of neurologic symptoms between patients with and without mycotic aneurysm. During an average follow-up of 40 months, there were no instances of subarachnoid hemorrhage/mycotic aneurysm among 121 patients discharged after a full course of antibiotic therapy. Therefore, the risk of rupture of an unsuspected mycotic aneurysm following a full course of antibiotics is low. When a prodrome does precede a mycotic aneurysm, it most often is a focal deficit consistent with embolism. We favor angiography in all patients with infective endocarditis who experience a focal deficit with good recovery. The timing and other indications for angiography in infective endocarditis are discussed.
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