Long-Term Clinical and Imaging Follow-Up of Complex Intracranial Aneurysms Treated by Endovascular Parent Vessel Occlusion

Article Figures & Data

Table 1:

PVO for anterior circulation aneurysms: demographics, follow-up, and complications

Case No.	Age (yr)/Sex	Location	Size (mm)	Presentation	FU (days)	Aneurysm Obliterated	Complications/Comments
1	85/F	Cavernous	32	H/A, visual loss	n/a	No	Balloons deflated, infarction without clinical deficit, treatment abandoned
2	56/F	Cavernous	17	Visual loss	65	Yes	None
3	62/F	Cavernous	29	H/A, CN palsy	115	Yes	Transient Horner syndrome
4	62/F	Cavernous	23	H/A, CN palsy	236	Yes	Partial deflation of proximal balloon, no clinical sequelae
5	58/F	Cavernous	27	H/A, CN palsy	n/a	No	Partial deflation of proximal balloon, cortical infarction with minor clinical deficit, early aneurysm growth provoked surgical trapping with STA-MCA bypass
6	68/F	Cavernous	35	H/A, CN palsy	867	Yes	None
7	39/M	Cavernous	30	H/A, CN palsy	4914	Yes	Growth of posterior circulation aneurysm
8	52/F	Cavernous	30	H/A, CN palsy, visual loss	6539	Yes	Growth of contralateral (mirror) cavernous aneurysm
9	60/F	Parophthalmic	14	Incidental	181	Yes	None
10	62/F	Parophthalmic	25	Visual loss	416	Yes	None
11	64/F	Parophthalmic	39	Cognitive decline, hydrocephalus	420	Yes	None
12	74/F	Parophthalmic	16	Visual loss	484	Yes	None

Note:—CN indicates cranial nerve; H/A, headache; STA-MCA = superficial temporal artery-middle cerebral artery.

Table 2:

PVO for posterior circulation aneurysms: demographics, follow-up, and complications

Case No.	Age (yr)/Sex	Location	Size (mm)	Presentation	FU (days)	Aneurysm Obliterated	Complications/Comments
13	44/F	VB	7	SAH	63	Yes	None
14	52/F	VB	13	SAH	185	Yes	None
15	63/M	VB	5	SAH	656	Yes	None
16	60/F	VB	6	SAH	729	Yes	None
17	50/F	VB	8	SAH	n/a	No	Persistent filling of aneurysm after proximal VA occlusion, large PICA incorporated into dissecting pseudoaneurysm, underwent surgical trapping and PICA-PICA bypass
18	51/F	VB	5	SAH	1379	Yes	None
19	64/F	VB	25	Brain stem compression, H/A	515	Yes	None
20	55/F	VB	26	CN palsy	794	Yes	Lateral medullary infarction with clinical deficit
21	44/M	VB	34	Brain stem compression	1839	Yes	None
22	19/M	VB	20	Brain stem compression	2123	Yes	Brain stem infarction with clinical deficit
23	58/F	VB	26	Brain stem compression	3360	No	Transient episode of “tunnel vision”
24	67/F	VB	20	Brain stem compression, cognitive decline	n/a	No	Vessel rupture, death
25	74/M	VB	28	Brain stem infarction	n/a	No	Brain stem and cerebellar infarctions, death
26	54/M	PCA	20	Incidental	213	Yes	None
27	30/M	PCA	29	Incidental	770	Yes	Transient hemisensory and motor deficits
28	32/F	PCA	26	Incidental	2439	No	Transient homonymous hemianopsia

Table 3:

PVO for complex intracranial aneurysms: summary of obliteration rates, morbidity, and mortality

	Obliteration Rate (%)	Mortality (%)	Permanent Major Deficit (%)	Permanent Minor Deficit (%)
Anterior circulation aneurysms	83.3	0.0	0.0	8.3
Posterior circulation aneurysms presenting with SAH	83.6	0.0	0.0	0.0
Posterior circulation aneurysms presenting with mass effect	57.1	28.6	28.6	0.0
PCA aneurysms discovered incidentally	67.7	0.0	0.0	0.0