Table 1:

Treated ruptured vertebrobasilar dissecting aneurysms

Patient No.	Age (yr)/Sex	Hunt and Hess Grade	Type	Lesion Site	Dominant Vessel	Treatment	GOS	Initial Angiographic Outcome
1	55/M	3	PICA	RVA	Both	Proximal occlusion	1	Complete
2	63/F	5	Supra	LVA	Lesion	Proximal occlusion	2	Complete
3	48/F	2	Non	LVA	Both	Trapping	5	Complete
4	40/M	3	Non	LVA	Lesion	Trapping	5	Complete
5	49/M	2	Supra	RVA	Both	Trapping	5	Complete
6	60/M	5	Infra	RVA	Both	Trapping	2	Incomplete
7	44/M	2	Supra	LVA	Both	Trapping	5	Complete
8	57/M	2	Supra	RVA	Both	Trapping	5	Incomplete
9	55/F	5	PICA	RVA	Both	Trapping	5	Incomplete
10	25/M	2	Infra	LVA	Both	Trapping	5	Complete
11	32/M	3	PICA	RVA	Both	Proximal occlusion	1	Incomplete
12^*	41/M	2	Supra	LVA	Both	Trapping	1	Complete
13	56/M	2	Supra	RVA	Lesion	Trapping	5	Complete
14	38/F	3	BA	BA	Both	Stent with coil	3	Successful
15	39/M	3	PICA	RVA	Contra	Trapping	4	Complete
16	52/F	3	Non	LVA	Both	Trapping	5	Complete
17	48/M	2	Supra	RVA	Both	Trapping	5	Complete
18	36/F	2	Supra	RVA	Both	Trapping	5	Complete
19	54/M	2	Supra	LVA	Lesion	Trapping	5	Complete
20	41/M	4	Supra	LVA	Contra	Trapping	4	Incomplete
21	46/F	2	Supra	LVA	Both	Trapping	5	Complete
22	52/F	2	PICA	LVA	Both	Trapping	5	Complete
23	51/F	2	Supra	RVA	Both	Trapping	5	Incomplete
24	48/M	4	Infra	RVA	Contra	Trapping	3	Complete
25	33/M	4	PICA	LVA	Contra	Trapping	3	Complete
26	61/M	3	Supra	LVA	Lesion	Trapping	1	Incomplete
27	49/F	3	Supra	LVA	Lesion	Trapping	3	Complete
28	42/M	4	Infra	RVA	Both	Trapping	4	Complete
29	37/M	2	PICA	LVA	Both	Stent with coil	5	Successful

Note:—Non indicates nondifferentiated by conventional angiography; RVA, right vertebral artery; LVA, left vertebral artery; BA; basilar artery; Lesion, dominant artery on the same side as the lesion; Supra, lesion was above PICA level; Infra, lesion was below PICA level; Non, nondifferentiated lesion by conventional angiography; Contra, dominant artery contralateral to the lesion; Both, codominant; GOS, Glasgow Outcome Score; PICA, posterior inferior cerebellar artery.
* The patient had a left ruptured dissecting aneurysm and a right unruptured dissecting aneurysm, which were treated with trapping and a stent, respectively, .