Primary Hyperaldosteronism Presenting as Cardiac Arrest: A Case Report.

Primary hyperaldosteronism is an underdiagnosed cause of hypertension despite its increasing prevalence and strong association with cardiovascular morbidity and mortality. Early recognition is critical. Individuals with primary aldosteronism generally present with treatment-resistant hypertension and hypokalemia. Here, we present the case of a patient who experienced cardiac arrest due to severe hypokalemia and was subsequently diagnosed with primary hyperaldosteronism, confirmed through adrenal vein sampling. The condition was successfully treated with a left adrenalectomy.