The clinical and pathological features of acute pulmonary oedema of high altitudes have been the subject of several recent reports (Houston, 1960;Hultgren et al., 1961; Penialoza, 1962;Arias-Stella and Kruger, 1963;Nayak, Roy, and Narayanan, 1964;Menon, 1965;Singh et al., 1965), but the haemodynamic effects of the illness are not well delineated (Fred et al., 1962;Hultgren et al., 1964). The purpose of this communication is to present data on the circulatory and respiratory parameters observed in (1) 6 subjects with high altitude pulmonary oedema studied at 3658 metres within 24 hours of the onset of the illness, and (2) 3 subjects restudied 5 times after recovery.
SUBJECTS AND METHODSClinical History. Cases 1, 2, and 3 (Table I)
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