Biomaterial Database

[Measurement of respiratory resistance in newborn infants with the oscillation method]. 1983

S Srikasibhandha

Total respiratory resistance (Ros) was measured in 36 healthy newborn infants, using a forced oscillation technique. In contrast to other oscillation methods, an existing phase shift between oscillation pressure and flow has been taken into consideration using a phase diagram. Concurrent measurements of airway resistance (Raw) were made using the body-plethysmographic method and pulmonary resistance (R1) by oesophageal balloon method. A significant relationship was found to exist between Ros and Raw (r=0.63), and also between Ros and R1 (R=0.64). The technique described proved to be practical in the newborns.

UI	MeSH Term	Description	Entries
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008170	Lung Compliance	The capability of the LUNGS to distend under pressure as measured by pulmonary volume change per unit pressure change. While not a complete description of the pressure-volume properties of the lung, it is nevertheless useful in practice as a measure of the comparative stiffness of the lung. (From Best & Taylor's Physiological Basis of Medical Practice, 12th ed, p562)	Compliance, Lung,Compliances, Lung,Lung Compliances
D012119	Respiration	The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration (	Breathing
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000403	Airway Resistance	Physiologically, the opposition to flow of air caused by the forces of friction. As a part of pulmonary function testing, it is the ratio of driving pressure to the rate of air flow.	Airway Resistances,Resistance, Airway,Resistances, Airway