Abstract
Arteriovenous fistulas (AVFs) at the craniocervical junction (CCJ) are uncommon conditions with complex angioarchitecture. The objective of this study was to identify the angioarchitectural features of CCJ-AVF that were predictive of clinical presentation and neurological function. The study encompassed a total of 68 consecutive patients with CCJ-AVF at two neurosurgical centers between 2014 and 2022. Additionally, a systematic review was conducted, including 68 cases with detailed clinical data obtained via PubMed database spanning 1990 to 2022. Clinical and imaging data were collected and pooled together to analyze factors associated with subarachnoid hemorrhage (SAH), myelopathy, and modified Rankin scale (mRS) at presentation. The mean age of the patients was 54.5 ± 13.1 years, with 76.5% of them being male. The most common feeding arteries were V3-medial branches (33.1%), and drainage was frequently through the anterior or posterior spinal vein/perimedullary vein (72.8%). SAH was the most common presentation (49.3%), and an associated aneurysm was identified as a risk factor for SAH (adjusted OR, 7.44; 95%CI, 2.89–19.15). Anterior or posterior spinal vein/perimedullary vein (adjusted OR, 2.78; 95%CI, 1.00–7.72) and male gender (adjusted OR, 3.76; 95%CI, 1.23–11.53) were associated with higher risk for myelopathy. Myelopathy at presentation was an independent risk factor for unfavorable neurological status (adjusted OR per score, 4.73; 95%CI, 1.31–17.12) in untreated CCJ-AVF. The present study identifies risk factors associated with SAH, myelopathy, and unfavorable neurological status at presentation in patients with CCJ-AVF. These findings may help treatment decisions for these complex vascular malformations.
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The datasets used or analyzed during the current study are available from the corresponding author on reasonable request.
Funding
This work was supported by the Outstanding Academic Leaders Program of Shanghai Municipal Commission of Health and Family Planning (No. 2017BR006 to WZ), National Natural Science Foundation of China (No. 81571102, No. 81870911 to WZ), Clinical Research Plan of SHDC (No. SHDC2020CR2034B to WZ, No. SHDC2020CR4033 to KQ), Shanghai Municipal Science and Technology Major Project (No. 2018SHZDZX01), and CAMS Innovation Fund for Medical Sciences (CIFMS, 2019-I2M-5-008).
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Conception and design: Z Li, Zhang. Acquisition of data: Y Zhao, P Liu.
Analysis and interpretation of data: M Liu, Shi.
Drafting the article: Z Li.
Reviewed submitted version of manuscript: Y Liu, P Liu, Shi.
Approved the final version of the manuscript on behalf of all authors: Zhu.
Statistical analysis: Zhang.
Administrative/technical/material support: P Li, Tian.
Study supervision: Zhu , YL Zhao.
All authors reviewed the manuscript.
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Zongze Li and Hongfei Zhang contributed to this work equally.
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Li, Z., Zhang, H., Zhao, Y. et al. Angioarchitectural features of arteriovenous fistulas at craniocervical junction predicting clinical presentation and unfavorable neurological function: insight from a multicenter cohort and pooled analysis. Neurosurg Rev 46, 153 (2023). https://doi.org/10.1007/s10143-023-02057-6
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DOI: https://doi.org/10.1007/s10143-023-02057-6