Review Article
Unilateral Aplasia versus Bilateral Aplasia of the Vertebral Artery: A Review of Associated Abnormalities
Table 3
Distribution of 108 cases of the vertebral artery (VA) aplasia according to age.
| Age of patients | Number of cases of VA aplasia | Bilaterally | Left side | Right side | ( = 108) |
| Stillborn | | 1 | | 1 | Newborn (few hours after birth) | | 1 | | 1 | Neonate (≤28 days) | 1 | 1 | | 2 | Suckling (≤12 months) | 1 | 5 | | 6 | Tot (≤3 years) | | 3 | | 3 | Preschool age (≤5 years) | | | 1 | 1 | School age (6–12) | 1 | | | 1 | Adolescent (13–18) | | 1 | | 1 | 19–30 | 1 | 2 | 1 | 4 | 31–40 | 2 | 3 | 8 | 13 | 41–50 | 4 | 4 | 4 | 12 | 51–60 | 6 | 9 | 3 | 18 | 61–70 | 11 | 7 | 5 | 23 | 71–80 | 3 | 5 | 6 | 14 | >81 | | 2 | | 2 | Unknown age | 1 | 2 | 3 | 6 |
|
|