[Changes in systemic hemodynamics during exposure of the cooled body to hypoxia]

In cats with normal body temperature, hypoxia (10% O2 in nitrogen) induced depressor shifts of the arterial pressure due to a drop of the general peripheral resistance, whereas in cooling of the organism to +30 degrees C a slight increase of the arterial pressure occurred. Hypothermia was found to reduce the degree of increase in the venous return in response to a hypoxic stimulus.