• World Neurosurg · Oct 2022

    Review

    The vascular architecture of cavernous sinus dural arteriovenous fistula and its impact on endovascular treatment approach selection and outcome.

    • Peixi Liu, Yingjun Liu, Yuan Shi, Qingzhu An, Wei Zhu, Yingtao Liu, Peiliang Li, and Yanlong Tian.
    • Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China; National Center for Neurological Disorders, Shanghai, China; Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China; Neurosurgical Institute of Fudan University, Shanghai, China; Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China.
    • World Neurosurg. 2022 Oct 1; 166: e770e780e770-e780.

    BackgroundA cavernous sinus (CS) dural arteriovenous fistula (DAVF) is a form of abnormal arteriovenous communication that can be treated with endovascular embolization. Establishing an optimal access route should be based on vascular architecture. We reviewed 64 patients with CS-DAVF who underwent endovascular embolization and report the endovascular treatment approach selection and outcome.MethodsClinical data were obtained from 64 patients with CS-DAVF who had been surgically treated at the authors' hospital between 2009 and 2022. Patients' medical records, imaging data, and follow-up outcomes were retrospectively analyzed.ResultsAll 64 patients (15 male, 49 female; mean age, 50 years) underwent CS-DAVF embolization. The most common symptoms were exophthalmos (39.1%), chemosis (35.9%), and headache (28.1%). On digital subtraction angiography images, 34.4% of the DAVFs were unilateral, and 82.8% were fed by both the external carotid artery and internal carotid artery. Of the patients' inferior petrosal sinuses (IPSs), 54.7% were nonopacified. The most common intravascular approaches included trans-IPS (37.5%) and trans-artery (28.1%) approaches. More than half of the CS-DAVFs were embolized by both coils and Onyx (62.5%). A total of 85.9% of the fistulas were completely embolized, and the follow-up rate was 76.6%. The modified Rankin Scale score was 0.9 ± 1.0.ConclusionsThe vascular architecture of CS-DAVF is closely related to endovascular treatment approach selection and outcome. Combined with the modified IPS recanalization technique, the trans-IPS approach is the safest and most effective approach. Dual microcatheter and balloon assistance techniques ensure the safety and completeness of embolization.Copyright © 2022 Elsevier Inc. All rights reserved.

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