Sinus rhythm with an R-on-T PVC changing to SVT
Sinus rhythm with an R-on-T PVC changing to SVT
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NSR changing to SVT
In this page the patient is in sinus rhythm. Then a PVC occurs on the 5th complex and it induces a run of an atrial ectopic rhythm. The width and morphology of the QRS complexes do not change, so I think that it is supraventricular. In leads I and II, it looks like there are some occasional P waves that look different from the sinus P waves.
Atrial Fibrillation with a Run of VT
This a 7 lead rhythm summary that I printed from our monitor of a patient in atrial fibrillation. Hopefully you can enlarge it on your computer. The QT interval is about .44 sec. A couplet occurs right after the T wave and induces a run of VT. Not quite an R-on-T episode but very close. Perhaps enough of the ventricle was still in a relative state of depolarization to induce the run of VT.