Biomaterial Database

Forced oscillatory resistance and compliance parameters following pneumonectomy in beagle dogs. 1981

R L Pimmel, and M Friedman, and G F Murray, and B R Wilcox, and P A Bromberg

Forced oscillatory resistance (RFO) and compliance (CFO) were measured in 3 groups of adult beagle dogs. Group I (n = 12) had undergone a left pneumonectomy at 6-10 weeks of age; group II (n = 11) underwent a similar procedure at 1 year of age; and group III (n = 8) served as unoperated controls. The mean value of RFO for group II was significantly higher than corresponding values for groups I and III. Similarly, the mean value of CFO was significantly lower for group II. Mean values for RFO and CFO between groups I and III were not statistically different. When RFO and CFO were normalized by functional residual capacity, mean values for all three groups were similar. However, when RFO and CFO were normalized by body weight, mean values for groups I and II were significantly different from those of group III. These findings cannot be explained directly by postoperative hyperinflation of the remaining lung. They suggest that there is an adaptive change in the mechanical characteristics of the remaining lung following pneumonectomy and that the degree of adaptation varies with the age of the animal undergoing resection.

UI	MeSH Term	Description	Entries
D008168	Lung	Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.	Lungs
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
D011013	Pneumonectomy	The excision of lung tissue including partial or total lung lobectomy.	Bronchoscopic Lung Volume Reduction,Endoscopic Lung Volume Reduction,Lung Volume Reduction,Lung Volume Reduction Surgery,Partial Pneumonectomy,Partial Pneumonectomies,Pneumonectomies,Pneumonectomy, Partial,Reduction, Lung Volume,Volume Reduction, Lung
D012129	Respiratory Function Tests	Measurement of the various processes involved in the act of respiration: inspiration, expiration, oxygen and carbon dioxide exchange, lung volume and compliance, etc.	Lung Function Tests,Pulmonary Function Tests,Function Test, Pulmonary,Function Tests, Pulmonary,Pulmonary Function Test,Test, Pulmonary Function,Tests, Pulmonary Function,Function Test, Lung,Function Test, Respiratory,Function Tests, Lung,Function Tests, Respiratory,Lung Function Test,Respiratory Function Test,Test, Lung Function,Test, Respiratory Function,Tests, Lung Function,Tests, Respiratory Function
D004285	Dogs	The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)	Canis familiaris,Dog
D000222	Adaptation, Physiological	The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.	Adaptation, Physiologic,Adaptations, Physiologic,Adaptations, Physiological,Adaptive Plasticity,Phenotypic Plasticity,Physiological Adaptation,Physiologic Adaptation,Physiologic Adaptations,Physiological Adaptations,Plasticity, Adaptive,Plasticity, Phenotypic
D000367	Age Factors	Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.	Age Reporting,Age Factor,Factor, Age,Factors, Age
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
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia