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Prevalence and Characteristics of Unruptured Cerebral Aneurysms in Ischemic Stroke Patients

 Ji Hwa Kim  ;  Sang Hyun Suh  ;  Joonho Chung  ;  Yeo-Jin Oh  ;  Sung Jun Ahn  ;  Kyung-Yul Lee 
 JOURNAL OF STROKE, Vol.18(3) : 321-327, 2016 
Journal Title
Issue Date
Cerebral aneurysm ; Ischemic stroke ; Magnetic resonance angiography ; Prevalence
BACKGROUND AND PURPOSE: The prevalence of unruptured cerebral aneurysms (UCAs) in ischemic stroke patients is not clearly defined. This study aimed to measure the prevalence and characteristics of UCAs in patients with acute ischemic stroke (AIS) and to compare our findings with those of the general population. In addition, we investigated the factors associated with cerebral aneurysms in AIS patients. METHODS: We retrospectively reviewed the brain magnetic resonance angiography images of 955 patients with AIS and 2,118 controls who had received a brain magnetic resonance angiography as part of a health check-up. We investigated the prevalence, size, location, and risk factors of the subjects in the context of UCAs. RESULTS: UCAs were found in 74 patients with AIS (7.7%) and in 79 who received a health check-up (3.7%). The prevalence of UCAs was significantly higher in the AIS group than in the health check-up group (odds ratio 2.17, 95% confidence interval 1.56-3.01). The mean aneurysm diameter was larger in the AIS group than in the health check-up group (3.75 mm vs. 3.02 mm, P=0.009). UCAs were primarily located in the internal carotid artery in both groups, and aneurysms in the middle cerebral artery were particularly common in the AIS group. According to multivariate analysis, hypertension alone was associated with an increased prevalence of UCAs in stroke patients. CONCLUSIONS: This study identified a higher prevalence and larger size of UCAs in AIS patients than in the general population. Hypertension was an independent risk factor of UCA in AIS.
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1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Ji Hwa(김지화)
Suh, Sang Hyun(서상현) ORCID logo https://orcid.org/0000-0002-7098-4901
Ahn, Sung Jun(안성준) ORCID logo https://orcid.org/0000-0003-0075-2432
Oh, Yeo Jin(오여진)
Lee, Kyung Yul(이경열) ORCID logo https://orcid.org/0000-0001-5585-7739
Chung, Joon Ho(정준호)
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