In contrast to the paroxysmal variety ... Figure 4 illustrates an example of nonparoxysmal junctional tachycardia. Note the gradual onset of the junctional mechanism as the sinus cycle length ...

are designated as paroxysmal supraventricular tachycardia, and are most frequently due to atrioventricular re-entry tachycardia (AVRT) or atrioventricular nodal re-entry tachycardia (AVNRT).

The term dilated cardiomyopathy (DCM) refers to a spectrum of heterogeneous myocardial disorders that are characterized by ventricular dilation and depressed myocardial performance in the absence of ...