Endovascular Treatment of Unruptured MCA Bifurcation Aneurysms Regardless of Aneurysm Morphology: Short- and Long-Term Follow-Up

Article Figures & Data

Download figure
Open in new tab
Download powerpoint
Fig 1.
Study design.
Download figure
Open in new tab
Download powerpoint
Fig 2.
Total intervention time by technique.
Download figure
Open in new tab
Download powerpoint
Fig 3.
Retreatment rate of aneurysms treated with the WEB device (2013–2017).

Table 1:

Demographic data

Table 2:

Aneurysm characteristics

Table 3:

Procedural and related complications

	Coil Group		WEB Group (n = 38)	Significance
	Coiling (n = 45)	Stent-Assisted Coiling (n = 67)	WEB Group (n = 38)	Significance
Procedural time (mean) (min)	155.5 ± 68.2	165.1 ± 54.3	136.3 ± 55.8	.018^{^a}
Total device per aneurysm implanted (mean)	3.8 ± 2.4	7.3 ± 5.8	1.0 ± 0.0	.000^{^a}
Complication rate (No.) according to Table 4	3 (6.7%)	5 (7.4%)	3 (7.9%)	1.000^{^b}

Table 4:

Complications and outcome

Patient No.	Complication	Hospitalization Time (days)	mRS at Discharge	mRS Long-Term/months	Antiaggregation
WEB group
65	Ischemia due to local thrombus	8	0	0/12	Simple
92	Occlusion of external iliac artery	9	0	3/48	Simple
121	Ischemia due to local thrombus	2	2	1/6	Simple
Coil group
Coiling
6	Aneurysm rupture	17	0	0/36	Simple
37	Ischemia due to local thrombus	11	3	2/12	Double
179	Ischemia due to local thrombus	4	0	1/3	Simple
Stent-assisted coiling
36	Ischemia due to local thrombus	11	3	2/12	Double
45	Aneurysm rupture	24	6	–	Double
99	Infarction without thrombus detection	8	4	3/12	Double
116	Ischemia due to local thrombus	8	4	4/36	Double
158	Relevant vasospasm	8	3	0/12	Double

Table 5:

Follow-up and reintervention rate

	Coil Group		WEB Group (n = 38)	Significance
	Coiling (n = 45)	Stent-Assisted Coiling (n = 67)	WEB Group (n = 38)	Significance
Follow-up-period (mean) (mo)	38.9 ± 26.8	29.9 ± 23.4	22.3 ± 16.7	.024^{^a}
Rate of retreatment (No.)	1 (2.2%)	4 (5.9%)	8 (21.1%)	.014^{^b}
Delay of retreatment after procedure (mean) (mo)	12 ± 0.0	9.8 ± 9.6	4.5 ± 1.6	.187^{^a}
mRS (discharge) (mean)	0.3 ± 0.8	0.6 ± 1.4	0.2 ± 0.6	.283^{^a}
Good clinical outcome at discharge (mRS ≤ 2) (No.)	42 (93.3%)	58 (86.6%)	37 (97.4%)	.186^{^b}
Death (No.)	0	1	0	1.000^{^b}
Clinical outcome (No.)
mRS at last follow-up (No.)
0	33 (84.6%)	38 (73.1%)	32 (88,9%)
1	3 (7.7%)	2 (3.9%)	2 (5.6%)
2	1 (2.6%)	3 (5.8%)	0 (0.0%)	.164^{^b}
3–5	1 (2.6%)	6 (11.5%)	2 (5.6%)
6	1 (2.6%)	3 (5.8%)	0 (0.0%)
Follow-up period (No.)
mRS improvement or consistent	34 (87.2%)	40 (77.0%)	33 (91.6%)
mRS degradation	5 (12.8%)	12 (23.0%)	3 (8.3%)	.109^{^b}

Table 6:

Characteristics of retreated aneurysms