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Newly occurring cranial nerve palsy after endovascular treatment of cavernous sinus dural arteriovenous fistulas.
Journal of Neurointerventional Surgery 2019 May 3
OBJECTIVE: Cranial nerve palsy (CNP) is rarely reported after endovascular intervention for cavernous sinus dural arteriovenous fistulas (CS DAVFs). Our aim was to evaluate the treatment outcomes of CS DAVFs, and the clinical course and risk factors of newly occurring CNPs, with a review of the literature.
METHODS: 121 patients with 134 lesions treated in our institution were selected. They were retrospectively analyzed in terms of baseline characteristics, radiologic results, clinical outcome, and newly occurring CNPs after treatment. Angiographic and clinical follow-up data were available for 104 lesions (77.6%) and 130 lesions (97.0%), respectively.
RESULTS: The angiographic results showed partial:complete obliterations in 13:91 (87.5%) at the final follow-up. Clinical outcomes were deteriorated or no change:improved or completely recovered (3:126 (96.9%)) at the final follow-up. New CNPs occurred in 24 patients (19.8%), including the sixth CNP alone or mixed in 23 patients (95.8%). 23 cases were completely recovered or improved (21 and 2 cases, respectively), and 19 (90.4%) of 21 were completely recovered within 6 months after treatment. In the multivariate analysis, pretreatment cranial nerve symptoms (OR=0.33; 95% CI 0.14 to 0.76; P=0.010) and complete obliteration immediately after treatment (OR=0.32; 95% CI 0.12 to 0.85; P=0.021) were significant preventive factors for new CNPs. Embolization in the posterior compartments of the CS (OR=5.15; 95% CI 1.71 to 15.47; P=0.004) was a significant risk factor.
CONCLUSIONS: Endovascular intervention was satisfactory in patients with CS DAVFs. The prognosis of newly occurring CNPs was favorable.
METHODS: 121 patients with 134 lesions treated in our institution were selected. They were retrospectively analyzed in terms of baseline characteristics, radiologic results, clinical outcome, and newly occurring CNPs after treatment. Angiographic and clinical follow-up data were available for 104 lesions (77.6%) and 130 lesions (97.0%), respectively.
RESULTS: The angiographic results showed partial:complete obliterations in 13:91 (87.5%) at the final follow-up. Clinical outcomes were deteriorated or no change:improved or completely recovered (3:126 (96.9%)) at the final follow-up. New CNPs occurred in 24 patients (19.8%), including the sixth CNP alone or mixed in 23 patients (95.8%). 23 cases were completely recovered or improved (21 and 2 cases, respectively), and 19 (90.4%) of 21 were completely recovered within 6 months after treatment. In the multivariate analysis, pretreatment cranial nerve symptoms (OR=0.33; 95% CI 0.14 to 0.76; P=0.010) and complete obliteration immediately after treatment (OR=0.32; 95% CI 0.12 to 0.85; P=0.021) were significant preventive factors for new CNPs. Embolization in the posterior compartments of the CS (OR=5.15; 95% CI 1.71 to 15.47; P=0.004) was a significant risk factor.
CONCLUSIONS: Endovascular intervention was satisfactory in patients with CS DAVFs. The prognosis of newly occurring CNPs was favorable.
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