Endovascular Treatment of Cavernous Sinus Dural Arteriovenous Fistulae: Review of the Literature and Current Status

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  • Satow Tetsu
    Department of Neurosurgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan

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<p>Cavernous sinus dural arteriovenous fistulae (CSdAVFs) are characterized by the shunts between dural arteries and dural veins surrounding the cavernous sinus (CS), causing ocular symptoms in addition to intracranial hemorrhage and infarction. As surgical access is difficult, endovascular treatment (EVT) has been considered and performed as the first-line therapy for decades. Although there have been recent advances in techniques and devices, transvenous embolization (TVE) with platinum coils remains the most common procedure. There are multiple access routes to the CS, such as the inferior petrosal sinus, superior ophthalmic vein (SOV), and intercavernous sinus from the contralateral CS. To extirpate the shunt, packing the entire sinus with coils is adopted, occasionally resulting in persistent cranial nerve palsy (CNP) due to compression of the coil mass. To avoid this complication, selective shunt occlusion (SSO), in which the coils are placed in the shunted pouch (SP) defined by the small restricted space where the arterial flow converges, is an effective and safe method. Transarterial embolization (TAE) is another option and use of liquid embolic materials, such as Onyx may be promising; however, the potential risk of ischemic nerve injury due to undesirable ante/retrograde influx of the liquid materials is of concern. In conclusion, EVT, especially TVE, is a safe and effective method for managing CSdAVFs. Understanding the angioanatomy consisting of the feeding artery, shunt point, and the drainage route, including the latent vessels, is essential for a good outcome.</p>

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  • 脳神経血管内治療

    脳神経血管内治療 14 (12), 572-582, 2020

    特定非営利活動法人 日本脳神経血管内治療学会

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