Which perinatal condition is a risk factor for PVL, reflected by an extremely low Apgar score at 10-15 minutes?

• A. Apgar score less than 4 at 10-15 minutes
• B. Apgar score of 9 at 5 minutes
• C. Prenatal vitamin intake
• D. Maternal fever at delivery

Answer: (A)

Severe perinatal hypoxia is a major precursor to PVL because it disrupts brain energy metabolism and damages the developing white matter, especially around the ventricles. An Apgar score that is extremely low at 10–15 minutes signals persistent distress and insufficient oxygenation during birth, indicating a significant hypoxic-ischemic event. This level of injury to periventricular tissue is a classic setup for PVL, reflecting the brain’s vulnerability in the context of asphyxia. A score of 9 at 5 minutes is reassuring and does not reflect the same ongoing injury; prenatal vitamins don’t indicate brain injury risk in this context; and maternal fever at delivery points more to infection risk than the specific hypoxic insult linked to PVL.