Direct carotid cavernous fistulae (CCF) are often detected early and treated promptly resulting in a paucity of literature regarding its long-term evolution. We present a case of high flow post-traumatic direct CCF that was neglected for over 6 years and presented with a rare manifestation of primary intraventricular haemorrhage. Occlusions of the primary venous outlets likely resulted in engorgement of the deep venous system. The segmental anatomy of the shunting basal vein is critical to the clinical presentation and may range from basal ganglia or brainstem oedema/infarctions to uniquely, as in our case, isolated intraventricular haemorrhage secondary to variceal rupture. Treatment in such chronic cases requires a consideration of cerebral hyperperfusion syndrome necessitating deconstructive techniques with subsequent anticoagulation to avoid accelerated thrombosis of the venous varices.
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Republishing Republished with permission from BMJ Case Reports. Published 16 November 2017; doi: 10.1136/bcr-2017-013396
Contributors All authors listed meet authorship criteria, and all authors certify that they have participated sufficiently in the work to take public responsibility for the content, including participation in the concept, design, analysis, writing, and revision of the manuscript. Furthermore, each author certifies that this material or similar material has not been and will not be submitted to or published in any other publication before its appearance in the Journal of Neurointerventional Surgery.
Competing interests None declared.
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Provenance and peer review Not commissioned; externally peer reviewed.
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