and junctional ectopic tachycardia. [15] Supraventricular arrhythmias may occur in the pre- and post-MI setting. Causes of SVT include: irritation of atrial myocardium as a result of pericarditis ...

The rate of these tachycardias usually exceeds 70 bpm. Figure 4 illustrates an example of nonparoxysmal junctional tachycardia. Note the gradual onset of the junctional mechanism as the sinus ...