Causes and Terminology in Neonatal Encephalopathy: What is in a Name? Neonatal Encephalopathy, Hypoxic-ischemic Encephalopathy or Perinatal Asphyxia

Clin Perinatol. 2024 Sep;51(3):521-534. doi: 10.1016/j.clp.2024.04.015. Epub 2024 May 23.

Abstract

Neurologic depression in term/near-term neonates (neonatal encephalopathy, NE) is uncommon with modern obstetric care. Asphyxial birth, with or without co-factors, accounts for a minority of NE, while maldevelopment (congenital malformations, growth aberrations, genetic, metabolic and placental abnormalities) plays an enlarging role in identifying etiologic subgroups of NE. The terms NE and hypoxic-ischemic encephalopathy (HIE) have not been employed uniformly, hampering research and clinical care. The authors propose the term NE as an early working-diagnosis, to be supplemented by a diagnosis of NE due to HIE or to other factors, as a final diagnosis once workup is complete.

Keywords: Brain injury; Hypoxic ischemic encephalopathy; Neonatal encephalopathy; Perinatal asphyxia.

Publication types

  • Review

MeSH terms

  • Asphyxia Neonatorum* / complications
  • Humans
  • Hypoxia-Ischemia, Brain* / diagnosis
  • Infant, Newborn
  • Terminology as Topic*