Three or more sequential SVEB's preceded and followed by at least one (1) Normal Sinus Beat; i.e., NSSSN, where N=Normal Sinus Beat, and S=SVEB. This class also contains sustained or non-sustained Paroxysmal Atrial Tachycardia and Supraventricular Tachycardia

Supraventricular Tachycardia (6 beats@ 162 BPM). Note 1st beat aberrantly conducted (see 12 Lead)