Posthemorrhagic ventricular dilatation-impact on early neurodevelopmental outcome

Area of Science:

• Neonatal neurology
• Pediatric neurosurgery
• Developmental pediatrics

Background:

• Severe intraventricular hemorrhage (IVH) grades III or IV is a significant concern in preterm neonates.
• Posthemorrhagic ventricular dilatation (PHVD) is a common complication following severe IVH.
• Early neurodevelopmental outcomes in affected infants require thorough evaluation.

Purpose of the Study:

• To assess the impact of ventricular dilatation on neurodevelopmental outcomes in preterm neonates with severe IVH.
• To evaluate current neurosurgical intervention practices for PHVD.
• To analyze the relationship between timing of intervention and neurodevelopmental results.

Main Methods:

• Retrospective analysis of preterm neonates (≤34 weeks GA) with severe IVH from 2005-2009.
• Standardized measurement of ventricular dilatation using head ultrasound (HUS).
• Stratification into early vs. late temporizing neurosurgical procedure (TNP) groups based on ventricular index (VI); neurodevelopmental assessment at 18-24 months.

Main Results:

• 80% of neonates with severe IVH developed PHVD; 39% received TNP.
• 59% of those receiving TNP required subsequent ventriculoperitoneal (VP) shunt placement.
• Infants with progressive PHVD requiring TNP showed significantly worse cognitive, motor, and language scores compared to those without PHVD or with PHVD managed without TNP.

Conclusions:

• Increasing ventricular size is a significant adverse predictor of neurodevelopmental outcomes in infants with PHVD.
• Neonates with progressive PHVD requiring TNP are most adversely affected.
• No significant difference in outcomes was observed between different types of TNPs.