Transarterial Onyx Embolization of Cranial Dural Arteriovenous Fistulas: Long-Term Follow-Up

Article Figures & Data

Table 1:

Baseline characteristics of study cohort (n = 40 patients with 41 cDAVFs)

Characteristic	No. of Patients
Age (mean; range)	57 (30–79)
Male (%)	21 (53%)
Presentation
Tinnitus	14 (35%)
Hemorrhage	13 (33%)
Incidental/nonspecific headache syndrome	10 (25%)
Seizure	2 (5%)
Superficial siderosis	1 (2%)
Cognard grade
I	5 (12%)
IIA	3 (7%)
IIB	3 (7%)
IIA+B	4 (10%)
III	15 (37%)
IV	11 (27%)
Borden grade
I	8 (15%)
II	7 (22%)
III	26 (63%)

Table 2:

Procedural characteristics of study cohort (n = 41 DAVFs)

Characteristic	No.
No. of feeding pedicles (mean, range)	4 (1–10)
Total No. of embolization procedures	49
No. of embolization procedures per patient (mean; range)	1.2 (1–3)
No. of single-stage embolizations	35 (85%)
Complications (n = 49 embolization procedures)
Technical events	5 (10%)
All clinical events	7 (14%)
Transient neurologic	1 (2%)
Permanent neurologic	1 (2%)
Death	0

Procedural Effectiveness (No. of patients)	Angiographic Cure (No.)
At end of final treatment (40)	35 (95%)
Short-term angiographic follow-up^{^a} (35)	33 (94%)
Long-term angiographic follow-up^{^b} (24)	24 (100%)