TABLE 1:

Treated dissecting aneurysms of the vertebrobasilar system

Patient No./Age (y)/Sex	Symptom	Hunt Hess Grade	Type	Site	Dominant Vessel	BTO	Treatment	Rankin Score
1/50/F	SAH	1	Infra	LVA	LVA	+	Proximal occlusion	Unknown
2/66/F	SAH	4	Infra	RVA	LVA	−	Proximal occlusion	0
3/49/M	Stroke	0	Infra	RVA	Co	+	Proximal occlusion	0
4/49/M	Stroke	0	Infra	RVA	LVA	−	Trapping	0
5/53/M	SAH	1	Infra	RVA	Co	−	Trapping	0
6/61/F	SAH	3	Infra	RVA	Co	−	Trapping	0
7/51/M	SAH	5	Infra	RVA	Co	−	Trapping	5
8/54/M	SAH + stroke	4	No PICA	RVA	Co	−	Trapping	4
9/49/M	SAH	3	No PICA	R > L	RVA	+	Trapping	5
10/48/F	SAH + stroke	3	No PICA	LVA	Co	+	Trapping	0
11/54/M	SAH + stroke	3	PICA	LVA	Co	−	Proximal occlusion + trapping	2
12/53/M	SAH + stroke	4	PICA	RVA	LVA	−	Proximal occlusion	5
13/38/F	Headache	3	PICA	RVA	RVA	−	Clip	3
14/79/F	Headache	1	Supra	RVA	Co	+	Proximal occlusion	0
15/55/M	SAH	4	Supra	LVA	Co	−	Proximal occlusion	Unknown
16/17/M	Stroke	0	Supra	RVA	Co	−	Proximal occlusion	0
17/49/M	SAH	4	Supra	RVA	RVA	−	Proximal occlusion	Unknown
18/66/M	SAH	1	Supra	RVA	LVA	−	Proximal occlusion	5
19/59/M	SAH	3	Supra	RVA	LVA	−	Proximal occlusion	5
20/44/M	TIA	0	Supra	LVA	RVA	−	Trapping	0
21/45/M	SAH	3	Supra	LVA	RVA	−	Trapping	2
22/29/F	SAH	3	Supra	RVA	Co	−	Trapping	0
23/43/F	SAH	1	Supra	LVA	Co	−	Trapping	1
24/47/F	SAH	3	Supra	LVA	RVA	−	Trapping	3
25/41/M	SAH	3	VBJ	LVA, BA	LVA	+	Proximal occlusion	0
26/71/M	SAH	1	VBJ	RVA, LVA, BA	RVA	+	Proximal occlusion	0
27/45/M	SAH	3	VBJ	LVA, BA	Co	−	Proximal occlusion	0
28/45/F	SAH	1	BA	BA	LVA	−	Clip	2

Tr = trauma.
Note.—TIA indicates transient ischemic attack; VBJ, vertebrobasilar junction; BA, basilar artery; L, left; R, right; VA, vertebral artery; BTO, balloon test occlusion; Co, codominant.