Tuesday, February 6, 2018
Polymorphic Ventricular Tachycardia
The initial rhythm is sinus with an occasional PVC. The seventh complex is a PVC that lands on the downstroke of the T wave, an R-on-T PVC. This triggers an period of non-sustained polymorphic VT. The axis of the QRS complexes change, so it has a Torsades de point character. The QT interval is prolonged on this strip. The QT is > 1/2 the R-R interval.