期刊
CLINICS IN PERINATOLOGY
卷 43, 期 3, 页码 409-+出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.clp.2016.04.002
关键词
Neonate; Birth asphyxia; Perinatal; Fetal acidemia; Hypoxic-ischemic encephalopathy; Cerebral palsy
The pathophysiology of asphyxia generally results from interruption of placental blood flow with resultant fetal hypoxia, hypercarbia, and acidosis. Circulatory and noncirculatory adaptive mechanisms exist that allow the fetus to cope with asphyxia and preserve vital organ function. With severe and/or prolonged insults, these compensatory mechanisms fail, resulting in hypoxic ischemic injury, leading to cell death via necrosis and apoptosis. Permanent brain injury is the most severe long-term consequence of perinatal asphyxia. The severity and location of injury is influenced by the mechanisms of injury, including degree and duration, as well as the developmental maturity of the brain.
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