Table 3.

Arrhythmia characteristics

Pt	Type of arrhythmia	Sustained/nonsustained	Rate (bpm)	Spontaneous termination	Recurrence?	Other ectopy	Antiarrhythmic started	Associated ECG findings
1	Monomorphic VT	Nonsustained	140	Yes	No	No	No	LVH with strain
2	Monomorphic VT	Nonsustained	160	Yes	No	Infrequent unifocal ventricular ectopy	Yes, beta blocker	Low voltage QRS
3	Atrial tachycardia	Sustained	150	Yes	No	No	No	Nonspecific T-wave abnormality
4	Monomorphic VT	Nonsustained	160	Yes	Yes	No	Yes, beta blocker	Normal for age
5	Monomorphic VT	Nonsustained	200	Yes	Yes	Frequent ventricular ectopy, ventricular bigeminy	Yes, amiodarone	Diffuse ST-segment elevation
6	Monomorphic VT	Nonsustained	130	Yes	No	Yes	No	Low-voltage QRS, nonspecific T-wave abnormality

bpm = beats per minute; ECG = electrocardiogram; LVH = left ventricular hypertrophy; Pt = patient; VT = ventricular tachycardia.