Abstract
The effect of adding CO2 to inhaled air in six subjects with acute mountain sickness was investigated during a medical expedition to 5400 m.3% CO2 in ambient air increased ventilation and resulted in a rise in PaO2 of between 24% and 40%. There was a 9-28% increase in PaCO2 and a reduction of the respiratory alkalosis normally seen at high altitude. Symptoms of acute mountain sickness were rapidly relieved. In three subjects cerebral blood flow increased by 17-39%, so that oxygen delivery to the brain would have been considerably improved. This study confirms earlier suggestions of the beneficial effect of CO2 inhalation at high altitude.
Originalsprog | Engelsk |
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Tidsskrift | Lancet |
Vol/bind | 2 |
Udgave nummer | 8612 |
Sider (fra-til) | 639-41 |
Antal sider | 3 |
ISSN | 0140-6736 |
Status | Udgivet - 17 sep. 1988 |