| Clin Res Cardiol (2021). 10.1007/s00392-021-01933-9 |
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| MRI-guided Conventional Catheter Ablation of Isthmus-dependent Atrial Flutter Using Active Catheter Tracking | ||
| S. Ulbrich1, Y. Huo1, J. Tomala2, M. Wagner1, U. Richter1, L. Pu1, J. Mayer1, A. Zedda1, C. Piorkowski3, T. Gaspar1 | ||
| 1Abteilung für Invasive Elektrophysiologie, Herzzentrum Dresden GmbH an der TU Dresden, Dresden; 2Klinik für Innere Medizin, Kardiologie und Intensivmedizin, Herzzentrum Dresden GmbH an der TU Dresden, Dresden; 3Abbott Medical GmbH, Eschborn; | ||
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Background: Interventional cardiac magnetic resonance (iCMR) has been established as a radiation-free alternative comparing to standard fluoroscopy-guided catheter ablation due to cavotricuspid isthmus (CTI)-dependent atrial flutter (AFL) ablation to image anatomy, structural alterations, and further catheter guidance. Objective: To explore the safety, feasibility, and efficacy of CTI ablations performed completely in iCMR suite using active catheter imaging. Methods: Consecutive patients underwent iCMR-guided catheter ablation due to CTI-dependent AFL. Procedures were performed in a 1.5T MRI with MR-conditional ablation catheters. Catheter guidance was achieved using active catheter imaging and MR receive-coils located in the catheter tip. Acute success, periprocedural complications, and short-term follow-up were collected for further analysis. Results: All patients (n=15, 73% male, median 70 y/o, IQR 67-82) achieved acute procedure success without any complication. Post-procedure lesion visualization scanning was completed in a median of 32 min (IQR 10-42). None of the patients has AFL recurrence at 6-month follow-up. Conclusion: In the iCMR suite, CTI-dependent AFL ablation could be achieved safely using active catheter imaging without any complication. It, further, allows detailed anatomic visualization of the CTI, intra-procedural lesion visualization, and exclusion of a pericardial effusion. |
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https://dgk.org/kongress_programme/ht2021/P326.htm |