![]() After one year of follow-up, 23 patients (79%) had no recurrence of arrhythmia. 9/29, p=0.016) and of combined AF and atypical AFL inducibility (19 vs. There was a significant reduction of AF inducibility (16 vs. After CTI ablation, only 11 patients (38%) maintained arrhythmia inducibility (p<0.001)-AF in nine and atypical AFL in two. Of the 29 patients, 26 (90%) had an inducible arrhythmia before CTI ablation-AF in 16, typical atrial flutter (AFL) in seven and atypical AFL in three. Atrial arrhythmias were considered inducible if they persisted for more than 60 seconds. Atrial arrhythmia inducibility was tested with burst pacing down to 150 ms or atrial refractoriness from the proximal coronary sinus. The procedure was performed using a CARTO-Merge mapping system, one or two Lasso catheters, an irrigated ablation catheter and radiofrequency energy. In 29 consecutive patients (23 male, mean age 54.6+/-11.4 years, 11 (38%) with hypertension and four (14%) with structural heart disease, mean left atrial dimension 43+/-6 mm) undergoing PV isolation for paroxysmal or persistent AF, atrial arrhythmia inducibility was tested before and after CTI ablation. The aim of this study is to assess whether CTI ablation after PV isolation reduces inducibility of atrial arrhythmias, particularly AF. Non-inducibility after AF ablation is associated with a higher success rate. A cavotricuspid isthmus (CTI) block may be an easier and safer alternative to left atrial lines for this purpose. In AF ablation, after pulmonary vein (PV) isolation, substrate modification can be increased by performing linear lesions in the left atrium that reduce the fibrillatory surface. 2008 19(1):10–3.Maintenance of atrial fibrillation (AF) depends on the presence of multiple reentrant circuits in the atria. DP+1: another simple endpoint for atrial flutter ablation. Clinical arrhythmology and electrophysiology: a companion to braunwald’s heart disease, 2nd ed. Contemporary utilization and safety outcomes of catheter ablation of atrial flutter in the United States: analysis of 89,638 procedures. Long-term outcomes after catheter ablation of cavo-tricuspid isthmus dependent atrial flutter: a meta-analysis. Pérez FJ, Schubert CM, Parvez B, Pathak V, Ellenbogen KA, Wood MA. Studies in man following open heart surgery. Entrainment and interruption of atrial flutter with atrial pacing. Waldo AL, MacLean WAH, Karp RB, Kouchoukos NT, James TN. Clinical cardiac electrophysiology: techniques and interpretations, 5th ed. Evidence of a reentry circuit in the common type of atrial flutter in man. (96)00480-9.ĭisertori M, Inama G, Vergara G, Guarnerio M, Del Favero A, Furlanello F. Mechanism of initiation of atrial flutter in humans: site of unidirectional block and direction of rotation. Olgin JE, Kalman JM, Saxon LA, Randall JL, Lesh MD. Electrophysiologic substrates and modes of initiation and termination. Atrial flutter and thromboembolic risk: a systematic review. Vadmann H, Nielsen PB, Hjortshøj SP, et al. Atrial flutter and the risk of thromboembolism: a systematic review and meta-analysis. Ghali WA, Wasil BI, Brant R, Exner DV, Cornuz J. Efficacy and safety of oral dofetilide in converting to and maintaining sinus rhythm in patients with chronic atrial fibrillation or atrial flutter: the symptomatic atrial fibrillation investigative research on dofetilide (SAFIRE-D) study. Ibutilide repeat dose study investigators. Efficacy and safety of repeated intravenous doses of ibutilide for rapid conversion of atrial flutter or fibrillation. Stambler BS, Wood MA, Ellenbogen KA et al, Stambler BS, Wood MA, et al. 2015 ACC/AHA/HRS guideline for the management of adult patients with supraventricular tachycardia: executive summary. Atrial activation sequence during atrial flutter in the canine pericarditis model and its effects on the polarity of the flutter wave in the electrocardiogram. Atrial flutter: more than just one of a kind. 2009.īun SS, Latcu DG, Marchlinski F, Saoudi N. Cavotricuspid isthmus: anatomy, electrophysiology, and long-term outcome of radiofrequency ablation. Incidence and predictors of atrial flutter in the general population.
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