Objective: To introduce the pathogenesis of QT prolongation and torsades de pointes (TDP) induced by noncardiovascular drugs and the classes of the drugs.

• 摘要目的：介绍引起QT间期延长及尖端扭转型室性心动过速（简称室速）的非心血管药物的种类和致病机制，以引起临床医生的重视。