Supraventricular tachycardia (SVT) is an umbrella term for fast heart rhythms arising from the upper part of the heart. This is in contrast to the other group of fast heart rhythms - ventricular ...

For example, in the case of a posteroseptal AP where coronary sinus ... that tachycardia is in fact AVNRT yet atrial activation following the PVC is different than that during SVT.