Long Term Prognostic of Neonatal Hypoxic Ischemic Encephalopathy With Hypothermia Treatment

The primary objective is to evaluate neonatal characteristics, and biological and clinical investigations as predictive factors of death, or of severe and moderate neurodevelopmental disability at 3 years, in a large population-based cohort of full-term and late preterm neonates with moderate or severe HIE. Contrary to most previous studies which have often analyzed the accuracy of one factor among all other clinical investigations, the investigators objective's is to seek a relevant combination of several factors among the following list: * Neonatal characteristics: gestational age and birthweight, maternal disease, acute intrapartum event, delivery mode, acidosis, neurological examination, place of birth and neonatal transfer * Laboratory investigations: pH, lactates and new biological markers as detailed below * Clinical investigations: aEEG, EEG, MRI, diffusion-weighted MRI