The author presented his observations of a small group of rabbits to which he administered small doses of dopamine under conditions of warm ischemia (the time between the clamping of the renal artery till the beginning of hypothermic extracorporeal circulation). Another group of rabbits did not receive dopamine. Those rabbits that were given dopamine lived longer and were more resistant to uremia and toxemia. The effect of dopamine lived longer and were more resistant to uremia and toxemia. The effect of dopamine is thought to be due to its vasodilator action on the kidney during periods of hyoxia ad hypotension. The author explained that the kidneys withstood three hours of warm ischemia when treated with dopamine. p.s. This paper is an abstract from the authors dissertation: Protective Action of Dopamine on the Kidney Damaged During Warm Ischemia.