Table 2:

Univariate freedom from recurrent hemorrhage of SCAVMsa

VariablesTotal (n = 80)Recurrent HemorrhageUnadjusted P Value
(+) (n = 35)(−) (n = 45)
Baseline characteristics
    Median age (yr) (IQR)20 (10–32)18 (8–25)21 (15–38)
        Pediatric30 (38)16 (46)14 (31).87
    Male31 (39)12 (34)19 (42).73
    Endovascular embolizationb41 (51)1 (2.9)40 (89)<.0001
Radiologic characteristics
    Subclassification.51
        SCAVM63 (79)31 (89)32 (71)
        SCAVF, single hole7 (8.8)1 (2.9)6 (13)
        SCAVF, multiple holes10 (13)4 (11)6 (13)
    SCAVM level.92
        Cranial-cervical2 (2.5)1 (2.9)1 (2.2)
        Cervical33 (41)16 (46)17 (39)
        Cervical-thoracic1 (1.3)01 (2.2)
        Thoracic31 (39)13 (37)18 (40)
        Thoracic-lumbar9 (11)4 (11)5 (11)
        Lumbar4 (5.0)1 (2.9)3 (6.7)
    Associated aneurysmb56 (70)31 (89)25 (56).049
    Venous thrombosisb7 (8.8)1 (2.9)6 (13).19
    Venous stricture2 (2.5)02 (4.4).21
    Venous ectasia16 (20)7 (20)9 (20).24
    Venous hypertension16 (20)7 (20)9 (20).66

  • Note:—SCAVF indicates spinal cord AVF; IQR, interquartile range 25th–75th percentile.

  • ↵a Data are expressed as number of lesions (%), unless otherwise indicated.

  • ↵b Variables related to the recurrent hemorrhage by log-rank test (P < .20).