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New cerebral microbleeds in ischemic stroke patients on warfarin treatment: two-year follow-up.

Abstract：

OBJECTIVE:Cerebral microbleeds (CMBs) are known to be indicative of bleeding-prone microangiopathy. Little is known about the significance of CMBs in anticoagulated patients. We determined the frequency of new CMBs in ischemic stroke patients who had been receiving warfarin treatment for 2 years. METHODS:A total of 204 ischemic stroke patients on warfarin therapy for 2 years underwent a repeat MRI. We compared demographic features, vascular risk factors, and radiological findings of patients with and without new CMBs. RESULTS:New CMBs on gradient-echo MRI were found in 29 of 204 patients (10%). Of 35 patients who had CMBs in the original study, 9 developed new CMBs after 2 years (26%), compared with 20 of the 169 patients (12%) who did not have CMBs at baseline (p=0.03). Patients with new CMBs were older than patients without CMBs (p=0.04), and the frequency of leukoaraiosis was significantly higher (p=0.02). The mean duration of warfarin treatment was not significantly different between the patients with and without new CMBs (p=0.28). CONCLUSION:This longitudinal study suggested that the presence of CMBs at baseline increased the frequency of new CMBs in patients on warfarin therapy.

journal_name

Clin Neurol Neurosurg

journal_title

Clinical neurology and neurosurgery

authors

Orken DN,Uysal E,Timer E,Kuloglu-Pazarcı N,Mumcu S,Forta H

doi

10.1016/j.clineuro.2013.03.004

subject

Has Abstract

pub_date

2013-09-01 00:00:00

pages

1682-5

issue

9

eissn

0303-8467

issn

1872-6968

pii

S0303-8467(13)00092-9

journal_volume

115

pub_type

杂志文章

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