| Two Different Days of Transcranial Doppler Examinations Should Be Performed for Detection of Right-to-Left Shunt in Acute Stroke Patients. | |
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MedLine Citation:
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PMID: 22188538 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: We investigated how many contrast-transcranial Doppler (c-TCD) examinations should be performed on different days in patients with acute stroke. METHODS: Consecutive acute stroke patients within 24 hours of onset were enrolled. Presence of RLS was examined using c-TCD examinations on days 1, 7, and 14. Each c-TCD examination used one test without Valsalva maneuver (VM) and three tests with VM. Patients were diagnosed with RLS when TCD detected ≥1 microembolic signal on ≥1 c-TCD examination on any of the days 1, 7, or 14. RESULTS: One hundred seventy patients (105 men [62%]; median age, 74 [IQR, 66-81] years) were enrolled. RLS was diagnosed in 45 patients (26%). RLS was identified on day 1 in 30 patients (18%), on day 7 in 28 patients (16%), and on day 14 in 23 patients (14%; P= .143). Detection rate of RLS by combining day 1 and 7 examinations was significantly higher than that of day 1 alone (25% vs 18%, P < .001). However, the rate did not increase when results of day 14 were added (25% vs 26%, P= .250). CONCLUSIONS: c-TCD examinations should be performed on at least two different days to assess the prevalence of RLS. J Neuroimaging 2011;XX:1-5. |
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Authors:
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Junya Aoki; Kazumi Kimura; Yasuyuki Iguchi; Kenichiro Sakai; Yuki Sakamoto; Yuka Terasawa; Kensaku Shibazaki; Kazuto Kobayashi |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-20 |
Journal Detail:
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Title: Journal of neuroimaging : official journal of the American Society of Neuroimaging Volume: - ISSN: 1552-6569 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9102705 Medline TA: J Neuroimaging Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2011 by the American Society of Neuroimaging. |
Affiliation:
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From the Department of Stroke Medicine, Kawasaki Medical School, Kurashiki-City, Okayama, Japan. |
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