Which statement best describes the effect of fetal repair on neural development?

• A. It provides the nervous system with additional time to develop in a more normal environment
• B. It stops gestation early to prevent neural damage
• C. It guarantees elimination of hydrocephalus
• D. It prevents Chiari II malformation completely

Answer: (A)

The idea being tested is that repairing the fetal defect gives the developing nervous system more time in a protective intrauterine environment, which can reduce ongoing injury to exposed neural tissue and support healthier development. When the spine is repaired before birth, spinal cord and nerve tissues are less exposed to amniotic fluid and repetitive mechanical irritation from fetal movement, allowing them to mature with fewer insults. This protective window can contribute to better neurological outcomes compared with later, postnatal repairs. It’s not about stopping the pregnancy or delivering early, and it doesn’t guarantee that hydrocephalus will be eliminated or that Chiari II malformation will be completely prevented—those issues can still occur, though their severity may be reduced in some cases.