[Short, middle and long-term outcome of major peri-intraventricular hemorrhages].

Within 4 years 10 months (1981-1985), the Port-Royal Neonatal Intensive Care Unit admitted 2,400 neonates, one third with a birthweight below 1,501 g; 4,631 cranial ultrasound studies were performed in 1,488 of those neonates, mostly less than 1,501 g, detecting 392 consecutive peri-intraventricular hemorrhages (PIVH), of which 130 were major forms (from unilateral grade III to bilateral grade IV PIVH). Overall survival rates were 91% in grade I, 85% in grade II, 42% in grade III, 26% in grade IV; survival rate was significantly lower in bilateral than in unilateral grade II and III PIVH. In major PIVH, deaths occurred early (58% in the first week after birth).

Sleep apneas in normal neonates and infants during the first 3 months of life.

Sleep polygraphic recording was carried out on 52 normal full-term babies. 16 infants were recorded at 2 - 7 days of age, 14 at 2 to 5 weeks, 13 at 6 to 9 weeks and 9 at 10 - 13 weeks. Central apneas of 2 sec and over were analysed in Active Sleep (AS), Quiet Sleep (QS) and Transitional Sleep (TS).

Respiratory pauses in normal infants and in siblings of victims of the sudden infant death syndrome.

Sleep polygraphic recording was carried out on 57 normal infants and on 100 SIDS siblings during morning naps between birth and the 4th month of life. Total sleep time and duration of sleep stages were determined. Central apnoeas of 2 sec and longer duration were analysed in AS, QS and IS.