Javier PINOS ; Diego Serrano PIEDRA
International Journal of Arrhythmia 2024;25(2):7-
A 16-year-old man presented with short VA supraventricular tachycardia and 2:1 atrioventricular ratio. The correct maneuvers allowed us to guide not only the mechanism but also the probable location of the atrioventricular block.