Figure 78-12 Polymorphic ventricular tachycardia. The QRS complexes have varying morphology, but without the "twisting of the points" torsades morphology seen in Figure 78-11 . The tachycardia terminated spontaneously. (From White RD, Wood DL: Out-of-hospital pleomorphic ventricular tachycardia and resuscitation: Association with acute myocardial ischemia and infarction. Ann Emerg Med 21:1282, 1992.)