Treatment thresholds for intervention in posthaemorrhagic ventricular dilation: a randomised controlled trial

Area of Science:

• Neonatal Intensive Care
• Pediatric Neurology
• Clinical Interventions

Background:

• Posthaemorrhagic ventricular dilatation is a serious complication in preterm infants.
• Determining the optimal timing and threshold for intervention is crucial for improving outcomes.

Purpose of the Study:

• To compare the efficacy and safety of a low versus a higher threshold for intervention in preterm infants with posthaemorrhagic ventricular dilatation.

Main Methods:

• A multicentre randomised controlled trial involving 126 preterm infants (≤34 weeks gestation) with grade III-IV intraventricular hemorrhage.
• Infants were randomised to either a low threshold (LT) or higher threshold (HT) for intervention based on ventricular index and anterior horn width.
• Interventions included cerebrospinal fluid tapping via lumbar punctures or ventricular reservoir, with ventriculoperitoneal shunt placement as a last resort.

Main Results:

• No significant difference was observed in the composite outcome of ventriculoperitoneal shunt placement or death between the LT and HT groups (19% vs 23%, P=0.45).
• Infants in the LT group required significantly more lumbar punctures (97% vs 58%, P<0.001) and reservoir insertions (62% vs 43%, P<0.05).
• A higher rate of shunt revision was noted in the LT group (58% vs 7%, P<0.01).

Conclusions:

• A lower threshold for intervention in posthaemorrhagic ventricular dilatation does not reduce the need for ventriculoperitoneal shunts or improve survival rates.
• The lower threshold approach leads to increased invasive procedures in preterm infants.
• Further assessment of neurodevelopmental outcomes is necessary to fully evaluate the long-term risks and benefits of each treatment strategy.