Based on our search of PubMed for peer-reviewed papers published from inception to 1 December 2024, using the terms “sudden death” OR “sudden cardiac death” OR “cause of death” AND “primary aldosteronism” OR “hyperaldosteronism” OR “CYP11B2” OR “pheochromocytoma”, only limited information is available. The gene discussed is CYP11B2; the disease is pheochromocytoma.