Table 1

Summary of 14 patients with hemorrhagic type of VAD

Case no.	Age	H–H grade	Angiographic findings	Site of dissection	Side	VA dominance	Treatment	Follow-up DSA (months), result	Clinical follow-up (months)	Follow-up mRS
1	50s	2	Stenosis-fusiform-stenosis	PD	Rt	E	IT	12, stable occlusion	67	0
2	70s	3	Fusiform-stenosis	Absent	Rt	ND	IT	12, stable occlusion	82	4
3	50s	3	Fusiform-stenosis	PD	Rt	E	IT	9, stable occlusion	78	0
4	30s	4	Stenosis-fusiform-stenosis	Absent	Lt	ND	IT	11, stable occlusion	70	0
5	50s	4	Fusiform	Absent	Rt	D	SAC, BIS	6, regrowth	24	0
6	50s	5	Stenosis-fusiform	PD	Lt	D	CFS	NA	NA	6
7	40s	2	Fusiform	PP	Rt	D	MSJT	13, stable occlusion	50	0
8	40s	5	Stenosis-fusiform-stenosis	PD	Rt	E	IT	14, stable occlusion	52	1
9	30s	5	Fusiform-stenosis	Absent	Lt	D	MSJT	NA	NA	6
10	50s	5	Stenosis-fusiform	PP	Rt	E	IT	NA	NA	6
11	30s	2	Fusiform-stenosis	PI	Lt	D	MSJT	6, regrowth; 21, stable occlusion	18	1
12	30s	2	Stenosis-fusiform	PD	Lt	D	MSJT	6, parent artery occlusion	16	0
13	40s	3	Fusiform	Absent	Lt	E	IT	7, stable occlusion	12	0
14	50s	2	Stenosis-fusiform	Absent	Rt	ND	IT	7, stable occlusion	11	0

Absent, no PICA; BIS, balloon-in-stent; CFS, coiling followed by stent; D, dominant; DSA, digital subtraction angiography; E, even; H–H grade, Hunt–Hess grade; IT, internal trapping; mRS, modified Rankin Scale; MSJT, modified semi-jailing technique; NA, not applicable; ND, non-dominant; PD, posterior inferior cerebellar artery (PICA) distal; PI, PICA involved; PP, PICA proximal; SAC, stent-assisted coiling; VA, vertebral artery; VAD, vertebral artery dissection.