Variability of the VA interval at tachycardia induction: a simple method to differentiate orthodromic reciprocating tachycardia from atypical atrioventricular nodal reentrant tachycardia.
Hadid C, Celano L, Di Toro D, Antezana-Chavez E, Gallino S, Iralde G, Calvo D, Ávila P, Atea L, Gonzalez S, Maldonado S, Labadet C.