The bronchial reaction to isocapnic hyperpnoea in asthmatic children is described. There were two groups of children, asthmatic and non asthmatic and the following measurements were made: The vital capacity (CV). The maximum forced expired volume in one second FEV1 (VEMS). The airways resistance Raw (RVA). The Maximum expiratory flow at 75% of the VC, MEF75 (V75) before and after hyperventilating for one minute. In asthmatics the test leads to an increase in resistance (RVA) as well as a fall in FEV1 (VEMS) and V75. The fall in expiratory flow produced by isocapnic hyperpnoea is both a simple and a relevant test.

Adolescent↗

PubMed1983

Increase in the linoleic acid level in pulmonary surfactant in the rabbit after exposure to high oxygen concentration.

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Animals↗

PubMed1982

[Pulmonary surfactant].

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Humans↗

PubMed1979

Surface activity and chemical composition of bronchial washings in children.

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Adolescent↗

PubMed1978

[Effect of atelectasis on surface tension of lung extracts following mitral commissurotomy].

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Female↗

PubMed1978

[Effect of atelectasis on the composition of fatty acids in phospholipids of pulmonary surfactant in patients subjected to mitral commissurotomy].

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Adult↗

PubMed1977

Immunoglobulins A and G and lysozyme in the bronchial secretions of children with acute respiratory tract infections.

The amount of immunoglobulins A and G and lysozyme in bronchial secretions of children with pneumonia was higher than in ones of bronchitis and infected asthma patients. Immunoglobulins levels increased also with the age of patients.

Acute Disease↗

PubMed1976