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Prognosis of carotid dissecting aneurysms: Results from CADISS and a systematic review
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Orthopaedics.ORCID iD: 0000-0003-0118-0341
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2017 (English)In: Neurology, ISSN 0028-3878, E-ISSN 1526-632X, Vol. 88, no 7, p. 646-652Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: To determine the natural history of dissecting aneurysm (DA) and whether DA is associated with an increased recurrent stroke risk and whether type of antithrombotic drugs (antiplatelets vs anticoagulants) modifies the persistence or development of DA.

METHODS: We included 264 patients with extracranial cervical artery dissection (CAD) from the Cervical Artery Dissection in Stroke Study (CADISS), a multicenter prospective study that compared antiplatelet with anticoagulation therapy. Logistic regression was used to estimate age- and sex-adjusted odds ratios. We conducted a systematic review of published studies assessing the natural history of DA and stroke risk in patients with non-surgically-treated extracranial CAD with DA.

RESULTS: In CADISS, DA was present in 24 of 264 patients at baseline. In 36 of 248 patients with follow-up neuroimaging at 3 months, 12 of the 24 baseline DAs persisted, and 24 new DA had developed. There was no association between treatment allocation (antiplatelets vs anticoagulants) and whether DA at baseline persisted at follow-up or whether new DA developed. During 12 months of follow-up, stroke occurred in 1 of 48 patients with DA and in 7 of 216 patients without DA (age- and sex-adjusted odds ratio 0.84; 95% confidence interval 0.10-7.31; p = 0.88). Published studies, mainly retrospective, showed a similarly low risk of stroke and no evidence of an increased stroke rate in patients with DA.

CONCLUSIONS: The results of CADISS provide evidence suggesting that DAs may have benign prognosis and therefore medical treatment should be considered.

Place, publisher, year, edition, pages
2017. Vol. 88, no 7, p. 646-652
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Neurology
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URN: urn:nbn:se:uu:diva-397328DOI: 10.1212/WNL.0000000000003617PubMedID: 28087823OAI: oai:DiVA.org:uu-397328DiVA, id: diva2:1371262
Available from: 2019-11-19 Created: 2019-11-19 Last updated: 2020-01-16Bibliographically approved

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