Extrauterine life duration and ontogenic EEG parameters in preterm newborns with and without major ultrasound brain lesions

• Published in: Clinical neurophysiology 2005-12, Vol.116 (12), p.2796-2809
• Main Authors: Conde, José Ramón Castro, Hoyos, Ana Lorena Rodríguez de, Martínez, Eduardo Doménech, Campo, Candelaria González, Pérez, Arturo Méndez, Hernández Borges, Angel Antonio
• Format: Article
• Language: English
• Subjects: Age Factors; Background EEG; Biological and medical sciences; Brain Diseases - diagnostic imaging; Brain Diseases - physiopathology; Cerebral Cortex - diagnostic imaging; Cerebral Cortex - physiology; Delta Rhythm; Electrodiagnosis. Electric activity recording; Fundamental and applied biological sciences. Psychology; Gestational Age; Humans; Infant; Infant, Newborn; Infant, Premature - physiology; Investigative techniques, diagnostic techniques (general aspects); Medical sciences; Neonatal electroencephalography; Nervous system; Ontogenic EEG parameters; Premature infant; Sleep - physiology; Sleep. Vigilance; Theta Rhythm; Ultrasonography; Ultrasound brain lesion; Vertebrates: nervous system and sense organs
• ISSN: 1388-2457; 1872-8952
• DOI: 10.1016/j.clinph.2005.08.020

To determine whether extrauterine life duration is associated with different ontogenic electroencephalographic (EEG) patterns in premature infants compared with neonates born at later gestational ages (GAs). We included 97 preterm infants of 24–36 weeks GA. We performed neurosonography and EEG recordings at week 1 and 2 of postnatal life, then every two weeks until term conceptional age (CA). We analyzed background EEG and sleep states and compared them at matched CA. In the group of infants without major ultrasound lesion (MUL), those