Abstract
Background Catheter ablation of pulmonary vein ectopic foci is a potentially curative treatment strategy for patients with atrial fibrillation. However, identification of arrhythmogenic pulmonary veins with conventional mapping is difficult, especially in patients with rare focal activity, multiple active foci, or extrapulmonary foci. The present study was designed to investigate use of simultaneous noncontact mapping in this setting. Methods and Results In 17 consecutive patients with paroxysmal atrial fibrillation, a catheter-mounted noncontact multielectrode array positioned in the left atrium was used to reconstruct 3300 electrograms simultaneously from a single beat. Isopotential maps were generated during sinus rhythm and focal activity. After ectopic foci were identified, radiofrequency catheter ablation was performed in patients with 1 or 2 foci. However, in patients who had multiple foci, intraoperative ablation of atrial fibrillation was advised. A total of 28 ectopic foci (25 pulmonary vein foc...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
