[Aldosterone-Na-K interactions after operations with extracorporeal circulation].

The Authors, valuing the interrelationships with aldosterone and idrosalin retention and potassium depletion after E.C.C., study all the factors affecting the loss of potassium particularly the secondary iperaldosteronism. The preoperatory heart failure, duration of the E.C.C. and low cardiac output increase the secundary iperaldosteronism. They also say that the plasmatic potassium concentration is not a good index of body potassium depletion, and there is a good ratio between urinary log. Na/k and aldosteronic activity; at the end the Authors say that there needs several potassium administration.