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Intraventricular Hemorrhage and Platelet Indices in Extremely Premature Neonates
Georgios Mitsiakos1, Aimilia-E Papathanasiou, Ioannis Kyriakidis
12nd Neonatal Department and Neonatal Intensive Care Unit (NICU), Aristotle University, Papageorgiou General Hospital, Thessaloniki, Greece.
Insights
Intraventricular hemorrhage (IVH) in premature infants is linked to low birth weight and gestational age. While platelet count and mass correlate with IVH severity, they don't solely explain its development.
Area of Science:
- Neonatology
- Pediatric Neurology
- Hematology
Background:
- Intraventricular hemorrhage (IVH) is a serious condition in premature infants.
- Key risk factors include prematurity and low birth weight.
- Pathogenic mechanisms involve cerebral blood flow, fragile vasculature, and coagulation issues.
Purpose of the Study:
- To investigate the role of platelet indices and maternal/neonatal factors in IVH development.
- To analyze the association between platelet parameters and IVH severity and outcomes.
Main Methods:
- Retrospective cohort analysis of 130 extremely premature neonates.
- Comparison of platelet counts, platelet mass, and prothrombin time between IVH and control groups.
- Correlation analysis between clinical characteristics, platelet indices, and IVH grade.
Main Results:
- Lower birth weight and gestational age were significantly associated with IVH.
- Platelet count on day one was lower in the IVH group and correlated positively with survival.
- Platelet count and platelet mass indicated the worst IVH grade; prolonged prothrombin time showed correlation but no prominent role.
Conclusions:
- IVH in extremely premature infants is multifactorial, not solely explained by platelet parameters.
- Platelet indices are associated with IVH severity and outcomes.
- Further research is needed to fully understand the complex relationships between IVH, platelet indices, and clinical outcomes.
Abstract:
Intraventricular hemorrhage (IVH) is a multifactorial disorder, the most important risk factors of which are prematurity and low birth weight. Disturbances in cerebral blood flow, inherent fragility of the germinal matrix vasculature, and platelet/coagulation disturbances are the 3 major pathogenic mechanisms. In this context, we investigated the role of platelet indices and several maternal and neonatal characteristics in the development of IVH through a retrospective cohort analysis of 130 extremely premature neonates, 24% of whom presented with severe IVH. There was a significant difference in platelet counts between the IVH and the control group on the first day of life (P=0.046). Presence of IVH was linked with lower birth weight (P=0.006) and lower gestational age (P=0.001). Platelet count on the first day of life was positively correlated with survival (P=0.001) and, along with platelet mass, was indicative of the worst IVH grade recorded for each neonate (P=0.002 and 0.007, respectively). Prolonged prothrombin time was also correlated with IVH (P<0.001), but factor analysis supported no prominent role. Maternal medications seem to play a minor role as well. In conclusion, IVH in extremely premature infants cannot be solely explained by platelet parameters, and further studies are required to determine the relationships between IVH, platelet indices, and outcomes.
