[Circumferential pulmonary vein ostial isolation for atrial fibrillation guided by EnSite NavX three-dimensional electrophysiological mapping].
OBJECTIVE
To investigate the efficacy and safety of circumferential pulmonary vein ostial isolation guided by EnSite NavX three-dimensional electrophysiological mapping in patients with atrial fibrillation (AF).


METHODS
Thirty-eight patients with drug refractory paroxysmal or persistent AF underwent circumferential pulmonary vein ostial isolation and were followed up to investigate the efficacy and safety of the treatment.


RESULTS
All cases reached the endpoint of the ablation, and both sides of the pulmonary vein were completely isolated, with an average procedure time of 200.4-/+37.0 min, X-ray exposure time of 54.7-/+9.7 min, and three-dimensional left atrial geometry reconstruction time of 27.5-/+7.5 min. During the follow-up for 9-/+3 months, the success rate of initial ablation was 89.5%, and the incidence of procedure-related complications were 7.9%.


CONCLUSIONS
Circumferential pulmonary vein ostial isolation guided by EnSite NavX three-dimensional electrophysiological mapping can be effective and safe for AF treatment.
Tan
Hai-bin
HB
Department of Cardiology, Foshan First People's Hospital, Foshan 528000, China. fsthbi@sina.com.cn
Yan
Xi-li
XL
Wen
Xu-tao
XT
D000328:Adult; D000368:Aged; D001281:Atrial Fibrillation / Q000601:surgery*; D017115:Catheter Ablation / Q000379:methods*; D022062:Electrophysiologic Techniques, Cardiac / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011667:Pulmonary Veins / Q000601:surgery*; D016896:Treatment Outcome