The Clinical Diagnosis and Management of Long QT Syndrome: Insights from the 2022 ESC Guidelines

Long QT syndrome (LQTS) is an uncommon disorder that is characterized by QT prolongation and torsade de pointes leading to sudden cardiac death. It is mainly triggered by adrenergic activation. Since LQTS is rare, it is often underdiagnosed. The updated 2022 European Society of Cardiology (ESC) guidelines aim to define the diagnosis of LQTS and spread its management. However, some unknowns and uncertainties still exist regarding the treatment of LQTS. This commentary is geared to the expansion of clinical applications of drug therapies for different subtypes of LQTS based on the 2022 ESC guidelines.