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Infarction of the periventricular white matter (periventricular leukomalacia) may also occur for reasons that are incompletely understood. The incidence of neonatal injury resulting from difficult or traumatic deliveries is decreasing due to increasing. The periventricular germinal matrix (a highly cellular mass of embryonic cells that lies over the caudate nucleus on the lateral wall of the lateral ventricles of a fetus) is prone to hemorrhage, which may extend into the cerebral ventricles ( intraventricular hemorrhage Intraventricular hemorrhage and/or intraparenchymal hemorrhage The forces of labor and delivery occasionally cause physical injury to the infant. Delivery is recommended when gestational age is ≥ 34 weeks and is generally indicated. read more, and premature rupture of membranes Prelabor Rupture of Membranes (PROM) Prelabor rupture of membranes is leakage of amniotic fluid before onset of labor. Placental function is normal, but trophoblastic invasion extends beyond the normal boundary. read more / placenta accreta Placenta Accreta Placenta accreta is an abnormally adherent placenta, resulting in delayed delivery of the placenta. Typically, painless vaginal bleeding with bright red blood occurs after 20 weeks gestation. read more, placenta previa Placenta Previa Placenta previa is implantation of the placenta over or near the internal os of the cervix. Eclampsia is unexplained generalized seizures in patients with preeclampsia. read more, preeclampsia Preeclampsia and Eclampsia Preeclampsia is new-onset or worsening of existing hypertension with proteinuria after 20 weeks gestation. Risk factors for multiple pregnancy include Ovarian stimulation. Multifetal (multiple) pregnancy occurs in up to 1 of 30 deliveries. The American College of Obstetricians and Gynecologists (ACOG) recommends late preterm delivery in conditions such as multiple gestation with complications Complications Multifetal pregnancy is presence of > 1 fetus in the uterus. read more they have a different appearance and different problems. Complications include perinatal asphyxia, meconium aspiration, polycythemia, and. read more and small for gestational age Small-for-Gestational-Age (SGA) Infant Infants whose weight is the 10th percentile for gestational age are classified as small for gestational age.
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The cause of postmaturity is generally unknown, but. A postmature infant is a postterm infant with manifestations of dysmaturity. Although premature infants tend to be small, this weight-based definition is incorrect because many infants weighing < 2.5 kg are mature or postterm and postmature Postterm and Postmature Infants A postterm infant is an infant born after 42 weeks gestation. Previously, any infant weighing < 2.5 kg was termed premature. Gestational age is loosely defined as the number. Gestational age is the primary determinant of organ maturity. Prematurity is defined by the gestational age Gestational Age Gestational age and growth parameters help identify the risk of neonatal pathology.