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Periventricular leukomalacia (PVL) is a type of brain injury that affects premature infants. The condition involves the death of small areas of brain tissue around fluid-filled areas called ventricles. The damage creates 'holes' in the brain. 'Leuko' refers to the brain's white matter. 'Periventricular' refers to the area around the ventricles.
Jw hindi song. PVL is much more common in premature infants than in full-term infants.
A major cause is thought to be changes in blood flow to the area around the ventricles of the brain. This area is fragile and prone to injury, especially before 32 weeks of gestation.
Infection around the time of delivery may also play a role in causing PVL. The risk for PVL is higher for babies who are more premature and more unstable at birth.
Premature babies who have intraventricular hemorrhage (IVH) are also at increased risk for developing this condition.
Tests used to diagnose PVL include ultrasound and MRI of the head.
There is no treatment for PVL. Premature babies' heart, lung, intestine, and kidney functions are watched closely and treated in the newborn intensive care unit (NICU). This helps reduce the risk of developing PVL.
PVL often leads to nervous system and developmental problems in growing babies. These problems most often occur during the first to second year of life. It may cause cerebral palsy (CP), especially tightness or increased muscle tone (spasticity) in the legs.
Babies with PVL are at risk for major nervous system problems. These are likely to include movements such as sitting, crawling, walking, and moving the arms. These babies will need physical therapy. Extremely premature babies may have more problems with learning than with movement.
A baby who is diagnosed with PVL should be monitored by a developmental pediatrician or a pediatric neurologist. The child should see the regular pediatrician for scheduled exams.
PVL; Brain injury – infants; Encephalopathy of prematurity
Greenberg JM, Haberman B, Narendran V, Nathan AT, Schibler K. Neonatal morbidities of prenatal and perinatal origin. In: Resnik R, Lockwood CJ, Moore TR, Greene MF, Copel JA, Silver RM, eds. Creasy and Resnik's Maternal-Fetal Medicine: Principles and Practice. 8th ed. Philadelphia, PA: Elsevier; 2019:chap 73.
Hüppi PS, Gressens P. White matter damage and encephalopathy of prematurity. In: Martin RJ, Fanaroff AA, Walsh MC, eds. Fanaroff and Martin's Neonatal-Perinatal Medicine. 11th ed. Philadelphia, PA: Elsevier; 2020:chap 52.
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Merhar SL, Thomas CW. Nervous system disorders. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 120.
Neil JJ, Volpe JJ. Encephalopathy of prematurity: clinical-neurological features, diagnosis, imaging, prognosis, therapy. In: Volpe JJ, Inder TE, Darras BT, et al, eds. Volpe's Neurology of the Newborn. 6th ed. Philadelphia, PA: Elsevier; 2018:chap 16.
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Updated by: Kimberly G. Lee, MD, MSc, IBCLC, Clinical Professor of Pediatrics, Division of Neonatology, Medical University of South Carolina, Charleston, SC. Cloud ftp amazon. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
