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  • Title: Endovascular treatment of cerebral aneurysms associated with arteriovenous malformations.
    Author: Lv X, Wu Z, Li Y, Yang X, Jiang C, Sun Y, Zhang N.
    Journal: Eur J Radiol; 2012 Jun; 81(6):1296-8. PubMed ID: 21489736.
    Abstract:
    BACKGROUND AND PURPOSE: In univariate survival analysis, coexisting aneurysms was associated with a significantly increased risk of hemorrhage in AVMs. We report here on our clinical experience with AVMs associated with arterial aneurysms that were managed by endovascular treatment. METHODS: To determine the incidence of associated aneurysms, the authors reviewed 366 consecutive patients with AVMs managed between 1999 and 2009. In 86 (23.5%) of these 366 patients, 55 intranidal aneurysms and 40 proximal aneurysms were observed. Targeted endovascular treatment with coils, n-butylcyanoacrylate(NBCA) and Onyx was performed for patients in this series, using a standard protocol. We reviewed the treatment plans, radiological findings and clinical courses of 86 patients suffering AVM associated with aneurysm. RESULTS: Ninety-five aneurysms in 86 patients with AVMs were enrolled in this study. Hemorrhage was the most frequent presenting symptom (69 patients, 80.2%). Bleeding was caused by an AVM nidus in 44 cases, aneurysm rupture in 20 and an undetermined origin in 5. Four patients were treated for associated aneurysm with coils followed by AVM embolization and 82 patients were treated with NBCA or Onyx embolization. There were total of 3 complications (3.5%) clinically significant complications in this series. Excellent or good outcomes (Glasgow Outcome Scale ≥ 4) were observed in 63 (73.3%) patients at discharge. Neurological deficits (Glasgow Outcome Scale 1-4) were 16.6% at discharge. CONCLUSION: Endovascular treatment can be adequately used for cerebral aneurysms associated with AVMs as an adjunct to microsurgery and radiosurgery.
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