Table 2. Brain injury in newborns with HIE that develop infantile spasms.

Patient	Pattern	Cortical Extent	Midbrain	Pons	Medulla	Hypothalamus
1	BG/T	+	+	-	-	-
2	Total	++++	++	++	-	+
3	Total	+++	-	-	-	-
4	BG/T	+	+	-	-	-
5	Total	++++	+	++	+	-
6	BG/T	+++	+	-	-	+
7	Total	++++	++	-	++	-
8	BG/T	+	-	+	-	-

BG/T = basal ganglia/thalamus

Extent of cortical injury:

⁺indicates 1-25%,

⁺⁺26-50%,

⁺⁺⁺51-75%,

⁺⁺⁺⁺76-100% of cortex involved

Levels of brainstem: - indicates absence of injury, + mild, ++ moderate to severe

Hypothalamus: - indicates absence of injury, + presence