Central Haemodynamic Effects

On the scale of the whole body, HBO has a multi-facet activity within which it is not easy to distinguish between the actual activity of the high pressures of oxygen and the combined or opposed activity of other environmental factors such as the increase in hydrostatic pressure, variations in temperature or gas densities, etc... Analysing the abundant albeit often contradictory literature enables the following summary of these effects to be made: HBO effects include a decrease in heart rate, an increase in arterial blood pressure, and a tendency to decrease cardiac output12.

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