Fig. 2From: Autoimmune polyendocrine syndrome II presenting paradoxically as Takotsubo cardiomyopathy: a case report and reappraisal of pathophysiologyElectrocardiogram of the patient showed monomorphic ventricular tachycardia upon presentation (A). Post-electrical cardioversion, there was sine-wave pattern on the electrocardiogram consistent with severe hyperkalemia (B). Serum potassium at the time was 7.8 mEq/L. The electrocardiogram after potassium correction revealed T-wave inversions in the anterior and inferior leads with a prolonged QTC of 530 ms (C)Back to article page