Article révisé par les pairs
Résumé : It has been suggested that a defective arousal reaction is implicated in the development of sudden infant death syndrome (SIDS). The implications of higher arousal thresholds for SIDS are substantial. In order to study "pediatric arousals," appropriate defnitions must be used for infants. The scoring method of arousals in adults edited by the American Sleep Disorder's Association (ASDA) is not applicable to infants. Since 1998, an international work force, the European Pediatric Wake-Up Club, has elaborated a method for the scoring of arousal in infants aged between 1 and 12 months and been expanded to the International Pediatric Wake-Up Club in 1998. The changes used for the scoring of "subcortical events" or "cortical arousals" are described as the following; 1) A subcortical activation means that no change in EEG is seen, but at least two of the following changes are seen during at least 3 seconds: (1) changes in the breathing frequency and/or amplitude; (2) changes in the heart rate; (3) a gross body movement; (4) a phasic increase in the chin EMG amplitude, unless associated with sucking on a pacifier. 2) A cortical arousal is scored if changes in the EEG frequencies (> 1 Hz) and/or amplitudes (> 1 s) and accompanied by two or more of the following changes: the breathing, frequency and/or amplitude, the heart rate, gross body movements, a phasic increase in the chin EMG amplitude during REM.