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Catheterization techniques and outcomes of transvenous embolization of cerebrospinal fluid–venous fistulas in the management of spontaneous intracranial hypotension: case series
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Catheterization techniques and outcomes of transvenous embolization of cerebrospinal fluid–venous fistulas in the management of spontaneous intracranial hypotension: case series
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Catheterization techniques and outcomes of transvenous embolization of cerebrospinal fluid–venous fistulas in the management of spontaneous intracranial hypotension: case series
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Journal Article
Catheterization techniques and outcomes of transvenous embolization of cerebrospinal fluid–venous fistulas in the management of spontaneous intracranial hypotension: case series
2026
Overview
BackgroundEndovascular transvenous embolization of spinal cerebrospinal fluid–venous fistulas (CVFs) has been shown in small studies to be a safe and effective treatment for spontaneous intracranial hypotension (SIH).ObjectiveTo validate the safety and effectiveness of this procedure and to describe catheterization techniques available to safely perform these embolization procedures.ResultsA total of 21 patients with confirmed CVF underwent 23 endovascular embolization procedures; 18 (86%) patients achieved both clinical and radiographic resolution of their SIH. There were no major neurologic complications from any procedure. One patient had postoperative pulmonary embolism and deep vein thrombosis. The most common side effects were prolonged symptoms of rebound intracranial hypertension (29%) and prolonged back pain with radiculopathy (24%). The azygous vein was used for catheterizing the level of interest in 83% of embolization procedures; the lumbar ascending vein was used for catheterization in 17% of the procedures; and direct catheterization of the segmental/foraminal vein at the level of interest was performed in 61% of the procedures. The epidural venous plexus was accessed and traversed to the level of interest in 39% of the procedures.ConclusionEndovascular transvenous embolization of CVF is a safe, well-tolerated, and effective treatment for SIH. Given the variability of the venous anatomy, there are multiple routes of catheterization that can be performed to access the level of interest when performing these procedures.
Publisher
BMJ Publishing Group LTD
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