[Effect of canrenoate potassium on intraoperative disturbances of electrolyte equilibrium]

In 61 patients the influence of canrenoate potassium on the shift of electrolytes during the intraoperative phase is studied. Without medication of canrenoate potassium depletion of potassium, magnesium and zinc occurs, a sign of transitory intraoperative hyperaldosteronism. On the other hand, preoperative and intraoperative infusion of 1000 mg canrenoate potassium prevents an increased excretion of electrolytes. Causes and consequences of the electrolyte depletion as well as the effect of canrenoate-potassium medication are discussed.