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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2011-5-10
pubmed:abstractText
In internal carotid artery occlusion (ICAO), a spontaneous increase of cerebral vasoreactivity (CVR) may occur over time. Statins are known to increase CVR. We analyzed the influence of statin treatment and other cofactors on CVR improvement in patients with ICAO. Sixty-six patients with ICAO were reexamined after 15 ± 6 months. CVR in both middle cerebral arteries was assessed by transcranial Doppler and inhalation of 7% CO(2). Pre-defined cut-off values were used to define exhausted CVR. Cofactors analyzed were: age, sex, hypertension, diabetes, statin treatment, degree of contralateral stenosis, quality of intracranial collateral flow, duration of ICAO. Mean CVR did not differ between the two studies. Twenty patients had exhausted CVR at baseline, 11 of them improved above the cut-off at follow-up (55%). Factors significantly associated with this improvement were good collateral pattern at baseline (p = 0.0065) and statin treatment (p = 0.0179). Odds ratios for improving CVR were 36.0 [95% CI 2.7-476.3] for good collateral flow and 20.0 [95% CI 1.7-238.6] for statin treatment. In conclusion, exhausted CVR frequently improves during the course of ICAO. Good collateral function and statin treatment are significantly associated with improving CVR.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1432-1459
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
258
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
791-4
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Improvement of exhausted cerebral vasoreactivity in carotid occlusion: benefit of statins?
pubmed:affiliation
Department of Neurology, Neurocenter, University of Freiburg, Freiburg, Germany. matthias.reinhard@uniklinik-freiburg.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't