Typical Atrial Flutter Ablation: Demonstration of Cavo-Tricuspid Isthmus Block Aided by a Halo Catheter
Λέξεις-κλειδιά:
atrial flutter, radiofrequency ablation, cavotricuspid isthmus, bidirectional blockΠερίληψη
A 61-year-old gentleman with one-year history of atrial flutter (see typical saw-tooth appearance of flutter –F waves in the inferior ECG leads in Panel A) refractory to antiarrhythmic agents was submitted to cavotricuspid isthmus ablation. During the procedure, use of an eicosapolar halo catheter (Panel B, arrow) helped to demonstrate the counterclockwise direction of activation (from proximal pole pairs Halo 10 toward Halo 1, Panel D). Upon completion of the ablation line along the isthmus, conversion of atrial flutter into sinus rhythm was noted (Panel C, arrow). With the aid of the halo catheter, bidirectional block could be easily determined by pacing near the coronary sinus os (Panel E, arrow) and recording the late activation of Halo 1, which was withdrawn to the lateral wall of the low right atrium, and finally pacing at the low lateral wall (Panel F, arrow) and recording late activation by the catheter near the coronary sinus os... (excerpt)Λήψεις
Λήψεις
Δημοσιευμένα
Τεύχος
Ενότητα
Άδεια
Authors who publish with this journal agree to the following terms:
a. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
b. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
