Comparative outcomes of endovascular vs. surgical treatment in craniocervical junction dural arteriovenous fistulas: A systematic review and meta-analysis.

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Craniocervical junction dural arteriovenous fistulas (CCJ-DAVFs) are rare and complex vascular malformations that are challenging to diagnose and treat. This study aims to compare surgical and endovascular treatments for CCJ-DAVFs through a systematic review and meta-analysis. A systematic review and meta-analysis was conducted according to the PRISMA guidelines. PubMed, Scopus, and Web of Science databases were searched from inception to July 2024. Fifteen studies involving 266 patients were included. Of these, 143 (53.8%) patients underwent surgical treatment alone and 123 (46.2%) underwent endovascular treatment alone. In the surgical group, the complete obliteration rate at last follow-up was 89.8%. Retreatment rate was 6.2%. Periprocedural complications occurred in 21.6% of cases. In the endovascular group, the complete occlusion rate at last follow-up was 73.6%. Retreatment rate was 46.7%. Periprocedural complications occurred in 18.8% of cases. Comparative meta-analysis revealed that the rate of complete obliteration at last follow-up was significantly higher in the surgical group (OR: 0.24; CI: 0.07 to 0.89, p=0.03). Surgical treatment had a significantly higher successful treatment rate (OR: 0.24; CI: 0.07 to 0.89, p=0.03) and lower retreatment rate (OR: 37.13; CI: 6.31 to 218.59, p<0.01). No significant differences were observed between the groups in terms of periprocedural complications or complete resolution of symptoms. Surgical treatment for CCJ-DAVFs achieves higher rates of complete obliteration with lower retreatment rates compared to endovascular treatment. However, endovascular treatment showed a tendency towards reducing periprocedural complications while increasing the likelihood of complete resolution of symptoms. Individualized treatment plans for CCJ-DAVFs, should be considered according to their anatomical location and potential surgical accessibility. Further studies are required to confirm these findings.