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Transcirculation Repair of a Direct Carotid-cavernous Fistula in a Patient Who Presented with Hydrocephalus: Illustrative Case

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Date 2025 Jan 27
PMID 39869896
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Abstract

Background: Direct carotid-cavernous fistulas (CCFs) are relatively rare but dangerous complications of penetrating traumatic brain injury or maxillofacial trauma. A variety of clinical signs have been described, including ophthalmological and neurological ones. In some cases, severely altered cerebral blood flow can present as massive life-threatening bleeding through the nose, subarachnoid hemorrhage, and/or intraparenchymal hemorrhage. Although intuitively it makes sense that the elevation of venous pressure can obstruct the absorption of cerebrospinal fluid after the formation of a CCF, reports of CCFs presenting with acute acquired hydrocephalus do not exist.

Observations: This case illustrates the development of hydrocephalus in a patient with a direct CCF.

Lessons: In the absence of a direct path of access to the cavernous sinus due to occlusion of the carotid artery and difficult venous access, a transcirculation route was used to obliterate the CCF and resolve the hydrocephalus in this patient. https://thejns.org/doi/10.3171/CASE24618.

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