Basic biochemical and hematological parameters in perinatal asphyxia and their correlation with hypoxic ischemic encephalopathy.

Perinatal hypoxic-ischemic encephalopathy (HIE) represents a major cause of neonatal death or long-term disability. Inflammation plays an important role in mediating brain damage induced by neonatal hypoxic-ischemic encephalopathy. The mechanisms underlying the inflammatory response in hypoxia and ischemia are complex and are still being extensively researched. The objective of this study was to determine the predictive value of peak lactate dehydrogenase (LDH), C-reactive protein (CRP), procalcitonin (PCT) and of the evolution of leukocytes, neutrophils and lymphocytes in the first 96 h after birth for the grade of encephalopathy and neurodevelopmental outcome in newborns with HIE. In order to reveal this relationship we used comparisons between the above mention parameters. The observed hematological changes were nonspecific. The vast majority of the 78 newborns included in the study had PCT values above normal in the first 24 h, contrasting with CRP values that were positive in only 15.8% of the patients. A total of 76.9% of the patients had LDH values higher than the upper limit of normal values. The mean LDH values in patients with an unfavorable prognosis were 1,235 U/l. We can conclude that LDH is a good predictor of HIE in the first 12/24 h after birth.

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