Seasonal changes and mild respiratory alkalosis in silicosis patients.

概要

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To assess the occurrence of subclinical respiratory alkalosis in persons physically disabled, we conducted arterial blood gas and other clinicolaboratory investigations in eighteen elderly silicosis patients in four seasons, i.e. February, May, July and November, in the metropolis of Japan. The following two seasonal alterations were found: (1) asymptomatic mild respiratory alkalosis in winter and summer, which probably resulted from the physical and mental effects of the two climatic conditions, and (2) an increased erythrocyte sedimentation rate in winter and spring and a high frequency of fever in winter, which were considered to reflect respiratory infection. Importance of the study of respiratory alkalosis in vulnerable groups of persons is discussed in the light of these findings.
日本生気象学会の論文