PMID: 839713Jan 1, 1977

Prevention of altitude decompression sickness during short flights in a depressurized cabin at high altitudes

Kosmicheskaia biologiia i aviakosmicheskaia meditsina
I N CherniakovV A Glazkova

Abstract

Forty altitude chamber experiments were carried out in which 18 test subjects participated. The purpose of the experiments was to prevent decompression sickness in a pilot using an altitude compensatory suit and oxygen mask. It was demonstrated that oxygen breathing on the ground and at an altitude of 8 km for 20 and 50-60 min eliminated severe symptoms and lowered the frequency of occurrence of mild symptoms of decompression sickness during the subsequent 10-20 and 60-120 min exposures to altitudes of 40,000 and 11,000 m respectively. An increase in the absolute pressure to 240-290 mm Hg in the altitude garment prevented decompression sickness of altitudes of 11,000-15,000 m and eliminated it if it occurred at lower barometric pressure.

Related Concepts

Medicine, Space
Altitude
Atmosphere Exposure Chambers
Atmospheric Pressure
Blood Flow Velocity
Diastolic Blood Pressure
Decompression, External
Decompression Sickness
Electrocardiographic Recorders
Lung

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