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Pulmonary Function Studies in Children
HAROLD A. LYONS, M.D.;
RALPH W. TANNER, B.A.;
TERESA PICCO, B.S.
Am J Dis Child. 1960;100(2):196-207.
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| Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings. |
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Reports on the abnormalities of pulmonary functions in children afflicted with poliomyelitis have appeared recently.1,2 Such studies are difficult to evaluate because of inadequate reference standards in children. Normal pediatric standards of reference have not yet been established with modern respiratory function equipment or by any large-scale studies. The present study was made to provide standard values for estimation of normal vital capacity (VC), maximum expiratory flow rate (MEFR), and timed vital capacity (TVC).
The group in the present study was composed of 1,163 apparently healthy elementary school children.* The population was composed of 624 boys and 539 girls. This group ranged in age from 6 to 14 years with 15% of the sample composed of adolescents. The group was predominantly middle class in background, of various national origins, and mainly of the Caucasian race.
Methods and Materials
A Blodgett-Osborn spirometer with a high speed kymograph was used in
. . . [Full Text PDF of this Article]
Author Affiliations
Brooklyn
From the Pulmonary Function Laboratory, Department of Medicine, The State University of New York College of Medicine at New York City, Brooklyn, and the Kings County Hospital Center, Brooklyn.; State University of New York, Downstate Medical Center, 450 Clarkson Ave. (3).
Footnotes
Submitted for publication Sept. 17, 1959.
The health records of these children failed to disclose any acute or chronic disease. The children and the school nurse denied any recent or chronic illness. All children tested were enrolled as students in the Sacred Heart School in Cambria Heights, L.I., N.Y.
"Adolescents" considered from age 13 to 14 for both sexes.
A Blodgett-Osborn spirometer has the following specifications: 71.5 cm. length anaesthesia tubing; mouthpiece diameter, 1.9 cm.; "Bell" volume, 9 L.; kymograph drum speed, 26.1 mm/second; resistance to flow, 11 cm. H2O pressure per 1 LPM—developed at the beginning of a forced expiration but a negligible value occurs within 0.2 to 0.3 seconds. The system is valveless.
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