title: Nasal airway resistance in the newborn.
abstract: The present study aimed to provide normative data for nasal airway resistance in the newborn. Anterior rhinomanometry was performed on 17 full term Caucasian infants aged 1 to 4 days, birthweight 3100 to 4150 g. No sedation or decongestion was performed. Average unilateral nasal resistance was 4.86 kPa/l/s (SD = 2.41) at a pressure threshold of 75 Pa. Average nasal resistance calculated from the right and left side recordings was 2.14 kPa/l/s (SD = 0.77). This corresponds to 21.8 cm H2O/l/s (SD = 7.9). The nasal resistance of the newborn thus is approximately 10 times that of the adult.
authors.affiliation: Institute of Orthodontics, Royal Dental College, Copenhagen, Denmark.
authors.forename: B
authors.initials: B
authors.lastname: Solow
authors.forename: B
authors.initials: B
authors.lastname: Peitersen
mesh_terms: D000403:Airway Resistance / Q000502:physiology*; D005260:Female; D006801:Humans; D007231:Infant, Newborn / Q000502:physiology*; D008297:Male; D008365:Manometry; D009296:Nasal Cavity / Q000502:physiology; D012016:Reference Values