Feature of Torsade de pointes is: (A) Wide QRS complex, (B) Sho QRS complex, (C) Prolonged QT interval, (D) Sho QT interval
Answer is C. Polymorphic VT that occurs in the context of congenital or acquired prolongation of the QT interval often has a waxing and waning QRS amplitude creat- ing a "twisting about the points" appearance referred to as Torsade de Pointes Ref Harrison 20th edition pg 1443