<prompt> Features of Torsade de pointes is-Wide QRS complexSho QRS complexProlonged QTc intervalSho QTc interval  <response>: Torsades de pointes is a specific form of polymorphic ventricular tachycardia in patients with a long QT interval. It is characterized by rapid, irregular QRS complexes, which appear to be twisting around the ECG baseline. Ref Harrison 20th edition pg 1545 