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Frequency and characteristics of progressive aberrancy during supraventricular tachycardia

2003; Elsevier BV; Volume: 92; Issue: 6 Linguagem: Inglês

10.1016/s0002-9149(03)00843-9

1879-1913

Timothy R. Betts, Jeffrey J. Goldberger, Alan H. Kadish,

Atrial Fibrillation Management and Outcomes

Progressive aberrancy (defined as beats with QRS duration and morphology between that of sinus rhythm and full aberrancy) occurred in 10 of 32 episodes of atrial pacing in 5 of 11 patients. The episodes resembled fusion beats but were due to bilateral bundle branch delay.