Table 1.

Four cases of unruptured vertebral artery fusiform aneurysm treated by our custom direct surgical approaches.

Case no.	Age	Sex	Affected side	Aneurysmal size (mm)	Classification of the aneurysm	PICA involvement	Treatment	Complications
1	77	F	Right	32	Asymmetrically dilated fusiform	(-)	Reconstructive clipping	(-)
2	74	M	Left	15	Classic dissecting	(-)	Trapping, V3-RAG-V4 bypass	(-)
3	59	M	Right	19	Large thrombosed	(-)	Proximal ligation, V3-RAG-PICA flow-augmentation bypass	Small lateral medullary infarction (-)
4	55	M	Left	30	Giant thrombosed	(+)	Trapping, V3-RAG-V4 bypass, OA-PICA bypass	(-)