Bigeminal pulmonary vein ectopy suppressed by pulmonary vein isolation.
A 58-year-old man with atrial fibrillation underwent pulmonary vein (PV) isolation (PVI). Bigeminal atrial premature beats persisted from the beginning of the PVI. The cardiac recordings from a basket catheter (BC) revealed the PV ectopic origin in the distal right superior PV. Successful PVI with the guidance of BC was confirmed by the appearance of concealed ectopy. Surprisingly, the PV ectopy completely disappeared immediately after the successful PVI. The findings suggest that the generation of PV trigger is sometimes dependent on left atrial input and that the underlying mechanism of the PV trigger may have been triggered activity or reentry.
Yamada
Takumi
T
Division of Cardiovascular Diseases, University of Alabama at Birmingham, Alabama 35294-0019, USA.
Murakami
Yoshimasa
Y
Toyama
Junji
J
Murohara
Toyoaki
T
D001281:Atrial Fibrillation / Q000503:physiopathology*; D018780:Body Surface Potential Mapping; D005117:Cardiac Complexes, Premature / Q000503:physiopathology; D017115:Catheter Ablation; D004594:Electrophysiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011667:Pulmonary Veins / Q000503:physiopathology* / Q000601:surgery