Initial Experiences with the Trenza Embolization Device for the Treatment of Wide-Neck Intracranial Aneurysms: A 12-Patient Case Series

American Journal of Neuroradiology

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FIG 1.
Native image showing the Trenza embolization device (left) and an illustration of a 9-mm Trenza device.
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FIG 2.
Flow chart describing the patient population.

Table 1:

Patient and aneurysm characteristics

Variable	Patients (n = 12)
Patient characteristics
Age (median) (IQR) (yr)	64 (59–70)
Female sex	7 (58%)
Smoking
Never	5 (42%)
Ex-smoker, stopped >6 months ago	5 (42%)
Active smoker or stopped <6 months ago	2 (16%)
Hypertension	7 (58%)
Diabetes	2 (17%)
Aneurysm characteristics
Acutely ruptured	2 (17%)
Location
AcomA	4 (33%)
Basilar artery tip	4 (33%)
ICA communicating segment	3 (25%)
MCA	1 (9%)
Height (median) (IQR) (mm)	8.2 (6.3–8.9)
Dome (median) (IQR) (mm)	9.6 (7.4–11.9)
Neck (median) (IQR) (mm)	5.4 (3.7–7.2)
Largest diameter (median) (IQR) (mm)	9.6 (7.5–11.9)
Aspect ratio (median) (IQR)	0.83 (0.78–1.09)
Dome-to-neck ratio (median) (IQR)	1.8 (1.6–1.9)

Table 2:

Aneurysm occlusion rate and outcomes^{^a}

Characteristic	Patients (n = 12)
Aneurysm occlusion^{^b}
Complete obliteration	8 (67%)
Residual neck	2 (16.5%)
Residual aneurysm with contrast filling within the coils	0
Residual aneurysm with contrast filling between the coils and the aneurysm wall	2 (16.5%)
Complications
Ischemic complications	2 (17%)
Hemorrhagic complications	1 (8%)
Symptomatic neurologic complications
Permanent	2 (17%)
Transient	0 (0%)
Death	1 (7.5%)
Permanent symptomatic neurologic deficit or death	3 (25%)