Patients with primary aldosteronism often present with hypokalemia and hype
rtension. Primary aldosteronism presenting as sudden death due to ventricul
ar fibrillation is described in an otherwise healthy 37-year-old woman. Aft
er successful direct current cardioversion, serum potassium was 1.4 mmol/L.
Investigations revealed a suppressed renin level, elevated serum aldostero
ne and a right adrenal nodule found on imaging. Ventricular fibrillation ha
s not previously been described as a presention of a biochemically and surg
ically proven aldosterone-producing adenoma. This case highlights the impor
tance of early detection and proper diagnosis of secondary hypertension bef
ore serious sequelae occur.