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Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
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Association between Dural AVFs and Cerebral Venous Thrombosis
L Kuiper1, M Sánchez van Kammen1, B A Coert2
1From the Departments of Neurology (L.K., M.S.v.K., J.M.C.).
AJNR. American Journal of Neuroradiology
|November 17, 2022
Summary
Dural arteriovenous fistulas (dAVFs) are associated with cerebral venous thrombosis (CVT). CVT often precedes or occurs concurrently with dAVFs, with a strong anatomic link, suggesting a bidirectional relationship.
Area of Science:
- Neurology
- Vascular Surgery
- Radiology
Background:
- Recent reports indicate a potential link between dural arteriovenous fistulas (dAVFs) and cerebral venous thrombosis (CVT).
- Understanding the temporal and anatomical relationship between these conditions is crucial for diagnosis and management.
Purpose of the Study:
- To investigate the specific temporal and anatomical associations between dural arteriovenous fistulas and cerebral venous thrombosis.
- To clarify the relationship between the onset and location of dAVFs and CVT.
Main Methods:
- A retrospective analysis of adult patients diagnosed with dAVFs between 2007 and 2020.
- Neuroradiological review of all imaging to identify and characterize dAVFs and CVT.
- Assessment of the temporal (previous, concurrent, subsequent) and anatomical (same, adjacent, unrelated sinus/vein) relationship between dAVFs and CVT.
Main Results:
- Of 178 patients with dAVFs, 55 (31%) had CVT.
- CVT occurred before or concurrently with dAVF diagnosis in 67% of cases.
- In 97% of patients with both conditions, CVT was located in the same or adjacent venous sinus to the dAVF.
Conclusions:
- One-third of patients with dAVFs developed CVT, often preceding or concurrent with the dAVF.
- A strong anatomical association exists between dAVFs and CVT.
- These findings support a bidirectional relationship between dAVFs and CVT.
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