Intraventricular Hemorrhages in Premature Infants: Papile Classification (I–IV) and Dynamic NSG Monitoring

Neurosonography (NSG) remains the fundamental imaging method for the brain in premature newborns due to its accessibility through the open anterior fontanelle, absence of ionizing radiation, and the possibility of bedside repeat examinations. The described sources cover NSG techniques, normal anatomy, and common pathologies of the neonatal brain, including ventriculomegaly (Bravo MC et al., Dev Med Child Neurol, 2024).

Papile Classification (I–IV)

The Papile classification is traditionally used to grade IVH in premature infants from grades I–IV with increasing severity. Detailed criteria for each grade (e.g., limitation to the germinal matrix, extension into the ventricles with and without dilation, parenchymal component) are not provided in the excerpts [clarify]. For accurate description of the grades, one should refer to the original classification source [clarify].

Dynamic NSG Monitoring

The key objective of dynamic monitoring is the timely detection of post-hemorrhagic ventriculomegaly and control of its progression. The pathophysiology and management of neonatal ventriculomegaly under NSG guidance are discussed in a European review (Bravo MC, Lubian S, Horsch S, Cabanas F, de Vries LS, Dev Med Child Neurol, 2024). For quantitative assessment of ventricular size, reference values for ventricular width (Brouwer MJ et al., Radiology, 2012) and cerebrospinal fluid space width in neurologically healthy children aged 0–19 months (Fandak J et al., BMC Pediatr, 2024) are used.

Specific reference thresholds for ventricular width, intervals for repeat examinations, and intervention algorithms for progressive ventriculomegaly are not provided in the excerpts [clarify]; it is recommended to refer to the indicated sources for values.