NDLI: Cerebral microbleeds and asymptomatic cerebral infarctions in patients with atrial fibrillation.

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Cerebral microbleeds and asymptomatic cerebral infarctions in patients with atrial fibrillation.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Saito, Tsukasa Kawamura, Yuichiro Tanabe, Yasuko Asanome, Asuka Takahashi, Kae Sawada, Jun Katayama, Takayuki Sato, Nobuyuki Aizawa, Hitoshi Hasebe, Naoyuki
Description	Author Affiliation: Saito T ( Department of Internal Medicine, Cardiovascular, Respiratory and Neurology Division, Asahikawa Medical University, Asahikawa, Hokkaido, Japan. Electronic address: tsukasa@asahikawa-med.ac.jp.); Kawamura Y ( Department of Internal Medicine, Cardiovascular, Respiratory and Neurology Division, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.); Tanabe Y ( Department of Internal Medicine, Cardiovascular, Respiratory and Neurology Division, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.); Asanome A ( Department of Internal Medicine, Cardiovascular, Respiratory and Neurology Division, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.); Takahashi K ( Department of Internal Medicine, Cardiovascular, Respiratory and Neurology Division, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.); Sawada J ( Department of Internal Medicine, Cardiovascular, Respiratory and Neurology Division, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.); Katayama T ( Department of Internal Medicine, Cardiovascular, Respiratory and Neurology Division, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.); Sato N ( Department of Internal Medicine, Cardiovascular, Respiratory and Neurology Division, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.); Aizawa H ( Department of Neurology, Tokyo Medical University, Tokyo, Japan.); Hasebe N ( Department of Internal Medicine, Cardiovascular, Respiratory and Neurology Division, Asahikawa Medical University, Asahikawa, Hokkaido, Japan.)
Abstract	BACKGROUND: Atrial fibrillation (AF) is a cardiac arrhythmia that does not infrequently induce ischemic strokes; however, little research has been reported on focal cerebral microangiopathic lesions in patients with AF. Recently cerebral microbleeds (CMBs) have been noticed for their potential implication in cerebral small vessel disease. Therefore, we had 2 goals in the present study: (1) to compare the prevalence of CMBs in patients with AF with that in patients without AF, and (2) to prove that CMBs could be a clinical predictive factor for the development of future cerebral microangiopathy in patients with AF without a history of symptomatic cerebral infarction in a prospective manner. METHODS: We performed yearly brain magnetic resonance imaging (MRI) assessments for a maximum of 5 years in 131 patients with AF and 112 control patients. Seventy-seven patients with AF underwent more than 3 yearly MRI scans. RESULTS: The Kaplan-Meier curve showed that the development of an asymptomatic cerebral infarction (ACI) was associated with the baseline presence of a CMB (P=.004). A multivariate Cox regression analysis revealed that the CMBs at baseline were significantly associated with an increment in not only the occurrence of ACIs (hazard ratio [HR], 5.414; 95% confidence interval [CI], 1.03-28.43; P=.046) but also in the consecutive development of CMBs (HR, 6.274; 95% CI, 1.43-27.56; P=.015). CONCLUSIONS: Patients with AF had a significantly higher prevalence of CMBs. The presence of CMBs in the baseline MRI may predict the consequent onset of an ACI and increase in CMBs in patients with AF.
File Format	HTM / HTML
ISSN	10523057
Issue Number	6
Volume Number	23
e-ISSN	15328511
Journal	Journal of Stroke and Cerebrovascular Diseases
Language	English
Publisher	Elsevier
Publisher Date	2014-07-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Brain Prospective Studies Cerebral Hemorrhage Complications Humans Middle Aged Risk Factors Male Aged, 80 And Over Journal Article Pathology Magnetic Resonance Imaging Cerebral Infarction Discipline Cardiology Female Aged Atrial Fibrillation Longitudinal Studies
Content Type	Text
Resource Type	Article
Subject	Rehabilitation Neurology (clinical) Surgery Cardiology and Cardiovascular Medicine

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