[Circulation, oxygen and acid-base balance in the extremities in response to stimulation of the sympathetic trunk].

The lumbar part of the dog right sympathetic trunk was stimulated with the 20 Hz current. This entailed a rise of general and regional arterial tension, a reduction of arterial lumen in the extremity, a decrease of volume blood flow and pulse blood content, a retardation of microcirculation, a decline of oxygen tension in tissues, a development of metabolic acidemia, a depression of oxidative process, an alteration of oxygen utilization in blood. Frequent recurrence of the stimulation brought about accumulation of the above changes.