title: Compliance of the total respiratory system in healthy preterm and full-term newborns.
abstract: The compliance of the total respiratory system (CRS) was determined by the occlusion technique during expiration in 19 preterm newborns (NB) over 31 weeks of gestational age (mean, 34 +/- 1.5 SD) and in 20 full-term NB. Postnatal age ranged from 1 to 28 days. No sedation was used during the test. In absolute terms, CRS was significantly greater (P less than 0.01) in full-term than in preterm NB (3.17 +/- 0.71 ml/cm H2O vs 2.37 +/- 0.81 ml/cm H2O). When normalized for body weight, length cubed, [corrected] body surface area, and the Quetelet index (body weight/length squared) [corrected], CRS was similar in preterm and full-term NB. These results suggest that, normalized for biometric data, passive elastic properties of the total respiratory system are similar in full-term and preterm NB, at least in the gestation age range studied.
authors: Laboratory of Physiology, Hospital Antoine Beclere, Paris, France.
authors: M
authors: M
authors: Migdal
authors: E
authors: E
authors: Dreizzen
authors: J P
authors: JP
authors: Praud
authors: M
authors: M
authors: Vial
authors: M
authors: M
authors: Dehan
authors: B
authors: B
authors: Chambille
authors: C
authors: C
authors: Gaultier
mesh_terms: D003187:Compliance; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn / Q000502:physiology*; D007234:Infant, Premature / Q000502:physiology*; D008170:Lung Compliance; D008297:Male; D012016:Reference Values; D012129:Respiratory Function Tests / Q000379:methods; D012143:Respiratory Physiological Phenomena