At 34 weeks, the brain weight of preterm infants is only 65% that of term infants, and the cortex volume is 53% that of term infants. Damage at this stage of development will also change the trajectory of specific processes in the development of neurons and glial cells, resulting in neurological dysfunction in survivors.The incidence of cerebral palsy in late preterm infants is three times higher than in term infants, and about 25% lag behind term infants in learning, language and other neurodevelopment. At 34-37 weeks of gestation, oligodendrocytes are still late oligodendrocyte precursors and vascular development of the white matter area is immature, making the brain more prone to white matter injury (WMI).
Age range
1 Day – 28 Days
Sex
ALL
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Imaging evaluation of different types of white matter injury in late preterm infants
Timeframe: 2009.1-2022.12
Imaging differentiation of hemorrhagic and non hemorrhagic injuries
Timeframe: 2009.1-2022.12
Number of late preterm infants and distribution of gray matter injury in late preterm infants with white matter injury
Timeframe: 2009.1-2022.12
The number and distribution of PVL like injury in white matter injury of late preterm infants
Timeframe: 2009.1-2022.12