TABLE 1

Patient and Lesion Characteristics

VariableTotalNeonatesPreschool-agedSchool-aged
N (% of cohort)6427 (42.4)19 (29.7)18 (28.13)
Age at diagnosis, mo, mean (SD) [range]45 (57.8) [0.04–196.8]0.13 (0.08) [0.03–0.3]30.19 (18.19) [2.8–57.33]125.76 (41.42) [66.23–196.5]
Boys, n (%)36 (56.3)18 (50.0)8 (22.2)10 (27.8)
Lesion characteristics, n (%)
 Unilateral46 (71.8)23 (50.0)11 (23.9)11 (23.9)
 Left25 (54.3)16 (64.0)5 (20.0)4 (16.0)
 Bilateral11 (17.2)4 (36.4)5 (45.5)2 (18.2)
 Infratentorial only8 (12.5)0 (0.0)3 (37.5)5 (62.5)
 Cortical only1 (1.6)1 (100.0)0 (0.0)0 (0.0)
 Subcortical only16 (25.0)2 (12.5)9 (56.2)5 (31.3)
 Both39 (60.9)24 (61.5)7 (17.9)8 (20.5)
 Neithera8 (12.5)0 (0.0)3 (37.5)5 (62.5)
Lesion size, mean (SD)
 Small (small perforator and branch)52 (81.3)20 (38.5)17 (32.7)15 (28.8)
 Large (major vessel)12 (18.8)7 (58.3)2 (16.7)3 (25.0)
Vascular territory, n (%)
 MCA full3 (4.7)3 (100)00
 MCA partial33 (51.6)14 (42.4)10 (30.3)9 (27.3)
 PCA5 (7.8)3 (60.0)02 (40.0)
 Vertebrobasilar arteries8 (12.5)03 (37.5)5 (62.5)
 Multiple15 (23.47 (46.7)6 (40.0)2 (13.3)
  • a Infrantentorial only. MCA, middle cerebral artery; PCA, posterior cerebral artery.