Changes in spontaneous ureteral peristalsis in experimental shock with and without administration of adrenaline during shock.

In a control group of anaesthetized dogs, a reduction in the number and speed of peristaltic movements of the ureter was observed during anaphylactic and dye shock. In the second, experimental, group of dogs the effect during fully-developed shock of an intravenous injection of adrenaline at the maximum active dose on the ureter dynamics was investigated. It was found that adrenaline increased the number and, to an even greater extent, the speed of peristaltic movements over a period of a few minutes' duration during which the arterial pressure remained high. It seems that adrenaline first and foremost facilitates the conduction of peristaltic stimuli in the ureter.