Journal
STROKE
Volume 37, Issue 3, Pages 911-914Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/01.STR.0000204237.66466.5f
Keywords
cerebral infarction; intracerebral hemorrhage; magnetic resonance imaging
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Background and Purpose - Cerebral microhemorrhages (MHs) are common among patients presenting with acute ischemic stroke and may predict both subsequent ischemic and hemorrhagic strokes. Methods - We prospectively studied patients with and without MHs presenting within 12 hours of their ischemic stroke or transient ischemic attack (TIA). A magnetic resonance (MR) scan was performed within 24 hours of symptom(s) onset. The primary outcome was disabling or fatal stroke at 18 months. Results - An MR scan was done in 236 patients with acute ischemic stroke or TIA. Forty-five (19.1%) patients had an MH on a baseline MR scan. Patients with MHs were 2.8 x (10.8% versus 4.0%; P = 0.036) more likely to have a subsequent disabling or fatal stroke than patients without an MH. The risk of symptomatic intracerebral hemorrhage was not statistically significant among MH and non-MH patients (3.3% versus 0.8%; P = 0.31). Conclusions - The presence of cerebral MH(s) in patients with acute ischemic stroke or TIA predicts recurrent disabling and fatal strokes. This risk is mainly assumed by recurrent ischemic strokes.
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