Heart Failure in Addison's Disease with Myocardial Changes of Potassium Deficiency

Abstract
Foci of necrosis of cardiac muscle were found in the myocardium of a patient with Addison''s disease. These foci closely resembled those produced in animals by excessive doses of desoxycorticosterone or by a diet deficient in K. The patient had a constant source of desoxycorticosterone from sub-cutaneously implanted pellets, but received practically no K in the diet. This is believed to be the 1st human example of anatomically demonstrable effect of excessive desoxycorticosterone and/or K deficiency.