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Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Brain Arteriovenous Malformations Located in Language Area: Surgical Outcomes and Risk Factors for Postoperative
Yuming Jiao1, Fuxin Lin2, Jun Wu1
1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, P. R. China; China National Clinical Research Center for Neurological Diseases, Beijing, P. R. China; Center of Stroke, Beijing Institute for Brain Disorders, Beijing, P. R. China; Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, P. R. China.
Objective:
Case selection for surgical treatment of language-area brain arteriovenous malformations (L-BAVMs) remains difficult. This study aimed to determine the surgical outcomes and risk factors for postoperative language deficits (LDs) in patients with L-BAVMs.
Methods:
Patients with L-BAVMs who underwent microsurgical resection between September 2012 and June 2016 were reviewed. All patients had undergone preoperative functional magnetic resonance imaging and diffusion tensor imaging. Both functional and angioarchitectural factors were analyzed regarding the postoperative LD. Functional factors included the eloquence involved, the side of blood-oxygenation level-dependent signal activation and the white-matter fibers (anterior segment, long segment [LS], and posterior segment of arcuate fasciculus, and the inferior fronto-occipital fasciculus) involved.
Results:
Sixty-nine patients with L-BAVMs were reviewed. Postoperative short- and long-term LD was found in 32 (46.4%) and 14 (20.3%) patients, respectively. Twelve of the 14 patients with Geschwind's territory L-BAVMs (85.7%) had short-term LD, compared with 10 (34.5%) in Wernicke's and 10 (38.5%) in Broca's area. LS involvement (P = 0.001) and larger nidus size (P = 0.017) were independent risk factors for the short-term LD. Meanwhile, nidus size (P = 0.007), preoperative LD (P = 0.008), and LS involvement (P = 0.028) were independent risk factors for long-term LD.
Conclusions:
L-BAVMs located in Geschwind's territory can cause a high incidence of LD. LS involvement and larger nidus size are risk factors for postoperative short- and long-term LD, and preoperative LD is a risk factor for postoperative, long-term LD.
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