Clinical recommendations for high altitude exposure of individuals with pre-existing cardiovascular conditions
European heart journal, 2018•academic.oup.com
Take home figure Adapted from Bärtsch and Gibbs Physiological response to hypoxia. Life-
sustaining oxygen delivery, in spite of a reduction in the partial pressure of inhaled oxygen
between 25% and 60%(respectively at 2500 m and 8000 m), is ensured by an increase in
pulmonary ventilation, an increase in cardiac output by increasing heart rate, changes in
vascular tone, as well as an increase in haemoglobin concentration. BP, blood pressure;
HR, heart rate; PaCO2, partial pressure of arterial carbon dioxide.
sustaining oxygen delivery, in spite of a reduction in the partial pressure of inhaled oxygen
between 25% and 60%(respectively at 2500 m and 8000 m), is ensured by an increase in
pulmonary ventilation, an increase in cardiac output by increasing heart rate, changes in
vascular tone, as well as an increase in haemoglobin concentration. BP, blood pressure;
HR, heart rate; PaCO2, partial pressure of arterial carbon dioxide.
Take home figure
Adapted from Bärtsch and Gibbs Physiological response to hypoxia. Life-sustaining oxygen delivery, in spite of a reduction in the partial pressure of inhaled oxygen between 25% and 60% (respectively at 2500 m and 8000 m), is ensured by an increase in pulmonary ventilation, an increase in cardiac output by increasing heart rate, changes in vascular tone, as well as an increase in haemoglobin concentration. BP, blood pressure; HR, heart rate; PaCO2, partial pressure of arterial carbon dioxide.
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