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[Obstructive apnea in premature and young infants].

The occurrence of obstructive apneas in premature and young infants is associated with a higher risk for SIDS. In order to assess the incidence of obstructive apnoeas in infants with different risk for SIDS pneumography was performed including the registration of the nasal air flow in 312 children: 69 preterm infants, 42 children after intensive care, one infant that later died of SIDS, 14 children after ALTE, 84 children after apnoeas observed by their parents, 25 siblings of SIDS-victims and 77 controls. Obstructive apnoeas were found in 24.6% of the preterm infants, in 28.5% of the children after intensive care, in 50% of the children after ALTE and in the one infant that later died of SIDS. Obstructive apnoeas however were registered only in 16.7% in the "apnoea-group", in 12% of the SIDS-siblings and in 11.7% of the controls. We therefore conclude that obstructive apnoeas which were observed more frequently in children with a higher risk for SIDS are of predictive value for the SIDS risk. Pneumography should therefore include the measurement of the nasal air flow. Home monitoring should be performed with devices that are able to assess bradycardias as indirect signs of obstructive apnoeas.