Pulmonary mechanics in patients with respiratory muscle weakness. 1977

G J Gibson, and N B Pride, and J N Davis, and L C Loh

Pulmonary mechanics and respiratory muscle pressures were studied in 7 patients with severe respiratory muscle weakness. Minimal pleural pressures were grossly abnormal and showed little variation with lung volume. Both the maximal transpulmonary pressure and static expiratory compliance were low; therefore, the pressure-volume curves of the lungs resembled those obtained after strapping the chest in normal subjects. The low compliance may result from either microatelectasis or a generalized alteration in alveolar elastic properties and is probably a major determinant of both the total lung capacity and the breathing pattern of patients with neuromuscular disease. Airway and gas exchange function were less abnormal than the elastic properties of the lungs.

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
D008176 Lung Volume Measurements Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle. Lung Capacities,Lung Volumes,Capacity, Lung,Lung Capacity,Lung Volume,Lung Volume Measurement,Measurement, Lung Volume,Volume, Lung
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009135 Muscular Diseases Acquired, familial, and congenital disorders of SKELETAL MUSCLE and SMOOTH MUSCLE. Muscle Disorders,Myopathies,Myopathic Conditions,Muscle Disorder,Muscular Disease,Myopathic Condition,Myopathy
D011312 Pressure A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Pressures
D012140 Respiratory Tract Diseases Diseases involving the RESPIRATORY SYSTEM. Respiratory Diseases,Respiratory System Diseases,Disease, Respiratory System,Disease, Respiratory Tract,Respiratory System Disease,Respiratory Tract Disease
D005260 Female Females
D005652 Functional Residual Capacity The volume of air remaining in the LUNGS at the end of a normal, quiet expiration. It is the sum of the RESIDUAL VOLUME and the EXPIRATORY RESERVE VOLUME. Common abbreviation is FRC. Capacities, Functional Residual,Capacity, Functional Residual,Functional Residual Capacities,Residual Capacities, Functional,Residual Capacity, Functional
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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