Abstract
A 70-year-old man presented with repeat atrial flutter 2 years after apparently successful cavotricuspid isthmus (CTI) ablation for typical atrial flutter. An electrophysiology study was then performed, and CARTO electroanatomic 3-dimensional mapping of the tachycardia was consistent with typical flutter. However, entrainment mapping from the lateral and mid CTI revealed postpacing intervals greater than 30 milliseconds more than the tachycardia cycle length. Entrainment mapping from the septal CTI and coronary sinus ostium was in the circuit. A diagnosis of intraisthmus reentry was made and successful ablation was achieved with termination, with radiofrequency ablation directly outside the coronary sinus ostium.
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.
