THE EFFECT OF OCCLUSION OF THE CAROTIDS AND THE INJECTION OF EPHEDRINE ON THE BLOOD PRESSURE OF CATS IN ADRENAL INSUFFICIENCY

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Abstract
In the final stage of the cardiovascular collapse of adrenal insufficiency in cats, stimulation of the peripheral cut end of splanchnic nerves produces little or no rise in blood pressure. Occlusion of the carotid arteries at this time, however, elicits a very marked pressor effect provided spinal reflexes remain effective. Intraven. injected ephedrine produces an increase in the blood pressure in adrenal insufficiency roughly equivalent to the response occurring on splanchnic stimulation. The interpretation of the findings is discussed.

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