Placement of a Stent within a Flow Diverter Improves Aneurysm Occlusion Rates

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Fig 1.
A, Left ICA angiogram shows a supraclinoid aneurysm. B, Angiogram after the deployment of the flow diverter shows good apposition of the device at the neck of the aneurysm but slight malapposition at the proximal landing zone (arrow). C, TOF-MRA image 3 months after the procedure shows residual filling in the aneurysm. D, Follow-up angiogram obtained 6 months after the procedure shows complete occlusion of the aneurysm. A filling defect is noted where the flow diverter was malapposed.
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Fig 2.
A, Left ICA angiogram shows a supraclinoid aneurysm similar to the aneurysm of the patient in Fig 1. B, Angiogram after deployment of the flow diverter shows malapposition at the distal end of the device (arrow). C, Angiogram at the end of the procedure shows good apposition of the device and a stent inside the device. D, Contrast-enhanced coronal MR image 3 months after the procedure shows no residual filling. E, Follow-up angiogram obtained 6 months after the procedure shows complete occlusion of the aneurysm.

Table 1:

Comparison of categoric clinical variables in monotherapy and stented groups

Table 2:

Comparison of continuous clinical variables in monotherapy and stented groups

Variable	Monotherapy Group		Stented Group		P
Variable	Mean	Median (Range)	Mean	Median (Range)	P
Age	49.0 ± 15.0	50 (12–86)	51.0 ± 14.7	52 (22–84)	.561
Weight	73.7 ± 15.2	78 (41–101)	68.7 ± 11.5	66 (47–96)	.115
Platelet inhibition level (%)^{^a}	79.8 ± 16.2	78 (44–100)	78.7 ± 20.4	81 (33−100)	.925
Aneurysm diameter (mm)	9.1 ± 10.8	5.0 (2–56)	14.8 ± 9.0	13 (3–40)	<.001^{^b}

Table 3:

Comparison of angiographic variables in monotherapy and stented groups