Ventricular Arrhythmia and Left Ventricular Dysfunction: A Rare Manifestation of Adrenal Adenoma

Primary aldosteronism is characterized by hypertension, suppressed plasma renin activity, increased aldosterone excretion, and hypokalemia with metabolic alkalosis. Ventricular arrhythmia is an uncommon finding. We report the case of a 46-year-old female who was referred to our center due to uncontrolled ventricular arrhythmia. The past medical history was positive for hypertension. On admission, echocardiography showed severe left ventricular (LV) dysfunction. Blood examination revealed severe hypokalemia. She had been diagnosed with acute coronary syndrome and decompensated heart failure elsewhere and was given diuretics. A diagnosis of primary aldosteronism due to adrenal adenoma was made according to laboratory findings and imaging modalities. The prompt management of bradycardia and correction of hypokalemia, along with surgical resection of adrenal adenoma, resulted in control of arrhythmias and improvement in LV function.