Which finding indicates increased intracranial pressure in an infant with myelomeningocele?

Which finding indicates increased intracranial pressure in an infant with myelomeningocele?

• A. Minimal lower extremity movement
• B. A high-pitched cry
• C. Overflow voiding only
• D. A fontanelle that bulges with crying

Answer: (B)

In infants, signs of increased intracranial pressure often manifest as changes in crying and overall CNS irritability because the skull sutures are not yet fused and pressure can affect brain structures. A high-pitched cry is a classic and relatively specific indicator of rising ICP in this age group, reflecting distress from brain pressure or hydrocephalus, which is a known risk in infants with myelomeningocele. Meanwhile, minimal lower-extremity movement points to the spinal cord lesion itself rather than brain pressure. Overflow voiding is a urinary issue related to neurogenic bladder from spinal involvement and doesn’t signal ICP. A fontanelle that bulges with crying can occur in healthy infants during crying and is not as specific for elevated ICP unless the fontanelle is tense or bulging at rest, which would be more alarming. So the high-pitched cry best signals increased intracranial pressure in this context.

In infants, signs of increased intracranial pressure often manifest as changes in crying and overall CNS irritability because the skull sutures are not yet fused and pressure can affect brain structures. A high-pitched cry is a classic and relatively specific indicator of rising ICP in this age group, reflecting distress from brain pressure or hydrocephalus, which is a known risk in infants with myelomeningocele.

Meanwhile, minimal lower-extremity movement points to the spinal cord lesion itself rather than brain pressure. Overflow voiding is a urinary issue related to neurogenic bladder from spinal involvement and doesn’t signal ICP. A fontanelle that bulges with crying can occur in healthy infants during crying and is not as specific for elevated ICP unless the fontanelle is tense or bulging at rest, which would be more alarming. So the high-pitched cry best signals increased intracranial pressure in this context.