Spontaneous documentation of bidirectional block during pulmonary vein isolation - keep an eye on the electrograms!
In the present case, we describe the abrupt transformation of intra-pulmonary vein activity from rapid firing to dissociated ectopic activity during sinus rhythm, as an easily identifiable, though rare to encounter, sign which documents the achievement of bidirectional block.
Cardiology Department, Henry Dunant Hospital, Athens Greece.
Stylianos
S
Tzeis
Cardiology Department, Henry Dunant Hospital, Athens Greece.
Sokratis
S
Pastromas
Cardiology Department, Henry Dunant Hospital, Athens Greece.
George
G
Andrikopoulos
ablation; atrial fibrillation; bidirectional block; pulmonary vein