Turkish Neurosurgery
Embolization of a non-galenic pial arteriovenous fistula with assistance of a SolitaireTM stent–case report
yu zhou1, qiang li1, jia-nan li1, yi xu1, jianmin liu1
1Changhai hospital, Department of Neurosurgery, Shanghai,
DOI: 10.5137/1019-5149.JTN.29642-20.2

Objective: Intracranial nongalenic pial arteriovenous fistulas (NGPAVF) are rare cerebrovascular lesions with poor natural history. The preferred treatment method for most pial AVFs is endovascular obliteration, with recent improvements in technique and material, but satisfactory blood arrest is always difficult for this kind of treatment. We described a novel endovascular strategy to help control blood flow used successfully to treat an infant with high-flow pial AVF. Methods and results: A single-hole high-flow nongalenic pial AVF was diagnosed in a 2.5 year-old infant. After coil packing failure despite temporal balloon occlusion, we deployed a SolitaireTM stent in the fistula. By twisting with detachable coils, we achieved satisfactory blood flow control. Then, obliteration of the fistula was achieved with Onyx injection. Conclusions: SolitaireTM stent deployment in the high-flow pial AVF can help stabilize the coils in the fistula, leading to satisfactory blood control. This strategy may be a valuable addition to currently available options.

Corresponding author : jianmin liu