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Erhard N, Englert F, Prommersberger S, Popa M, Bourier F, Reents T, Kraft H, Martinez AT, Syväri J, Tydecks M, Abdiu E, Koops E, Reiter T, Telishevska M, Lengauer S, Hessling G, Deisenhofer I, Bahlke F. Focal pulsed field ablation in complex atrial tachycardia: First clinical experience and 1-year outcome. Heart Rhythm 2024:S1547-5271(24)02905-9. [PMID: 39019385 DOI: 10.1016/j.hrthm.2024.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/13/2024] [Accepted: 07/02/2024] [Indexed: 07/19/2024]
Abstract
BACKGROUND Pulsed field ablation (PFA) has become increasingly important in the treatment of cardiac arrhythmias. In addition to single-shot devices mainly used for pulmonary vein isolation, focal PFA may provide a treatment option that increases the versatility of the technique. OBJECTIVE The purpose of this study was to provide data on feasibility, safety, and long-term outcome of focal PFA for ablation of complex atrial tachycardia (AT). METHODS All consecutive patients (n = 34) with complex AT treated at our department between 2022 and 2023 with a focal PFA system (CENTAURI™, Galvanize Therapeutics) were included. The majority of patients (32/34) previously had undergone at least 1 radiofrequency ablation. Established contact force-sensing catheters were used for PFA application in combination with a PFA generator. Pulsed electric field trains were conducted in a R-wave triggered manner. RESULTS Acute procedural success was accomplished in all patients. PFA included creation of 51 linear lesions and (re)isolation of 12 pulmonary veins. Mean procedural duration was 102.7 ± 30.3 minutes, with left atrial dwell time of 75.0 ± 24.7 minutes. Mean fluoroscopy duration was 8.7 ± 5.3 minutes. No complications occurred. After mean follow-up of 340.9 ± 130.1 days, recurrence of any AT occurred in 15 patients (44.1%). During 9 reablations, 3 gaps in previously created linear lesions were detected; the majority of recurrences (n = 6) were not related to previous PFA lesion creation. CONCLUSION Focal PFA of complex AT substrates was safe and efficient. Acute procedural success was 100%. After 1 year, the majority of patients were in sinus rhythm. A minority of recurrences was caused by insufficient PFA lesion creation.
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Affiliation(s)
- Nico Erhard
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany.
| | - Florian Englert
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Simon Prommersberger
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Miruna Popa
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Felix Bourier
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Tilko Reents
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Hannah Kraft
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Alex Tunsch Martinez
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Jan Syväri
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Madeleine Tydecks
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Edison Abdiu
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Eva Koops
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Theresa Reiter
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Marta Telishevska
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Sarah Lengauer
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Gabriele Hessling
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Isabel Deisenhofer
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
| | - Fabian Bahlke
- Department of Electrophysiology, German Heart Center Munich, Technical University of Munich, Munich, Germany
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Chaldoupi SM, Nissen SD, Vriesendorp PA, Farnir FIP, Jerltorp K, Linz B, Johannessen A, Haugdal MA, Luermans JGLM, Saljic A, Jespersen T, Hansen J, Linz D. Focal monopolar pulsed field ablation from within the great cardiac vein for idiopathic premature ventricular contractions after failed radiofrequency ablation. Heart Rhythm 2024:S1547-5271(24)02873-X. [PMID: 38971417 DOI: 10.1016/j.hrthm.2024.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 06/22/2024] [Accepted: 07/01/2024] [Indexed: 07/08/2024]
Abstract
BACKGROUND Idiopathic epicardial premature ventricular contractions (PVCs) originating from the left ventricular summit are difficult to eliminate. OBJECTIVE The purpose of this study was to describe the feasibility and procedural safety of monopolar biphasic focal pulsed field ablation (F-PFA) from within the great cardiac vein (GCV) for treatment of idiopathic epicardial PVCs. METHODS In 4 pigs, F-PFA (Centauri, CardioFocus) was applied from within the GCV followed by macroscopic gross analysis. In 4 patients with previously failed radiofrequency ablation, electroanatomic mapping was used to guide F-PFA from within the GCV and the ventricular outflow tracts. Coronary angiography and optical coherence tomography (OCT) were performed in 2 patients. RESULTS In pigs, F-PFA from within the GCV (5 mm away from the coronary arteries) resulted in myocardial lesions with a maximal depth of 4 mm, which was associated with nonobstructive transient coronary spasms. In patients, sequential delivery of F-PFA in the ventricular outflow tracts and from within the GCV eliminated the PVCs. During F-PFA delivery from within the GCV with prophylactic nitroglycerin application, coronary angiography showed no coronary spasm when F-PFA was delivered >5 mm away from the coronary artery and a transient coronary spasm without changes in a subsequent OCT, when F-PFA was delivered directly on the coronary artery. Intracardiac echocardiography and computed tomography integration was used to monitor F-PFA delivery from within the GCV. There were no immediate or short-term complications. CONCLUSION Sequential mapping-guided F-PFA from endocardial ventricular outflow tracts and from within the GCV is feasible with a favorable procedural safety profile for treatment of epicardial PVCs.
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Affiliation(s)
- Sevasti-Maria Chaldoupi
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Sarah Dalgas Nissen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Pieter A Vriesendorp
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Florent I P Farnir
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Kezia Jerltorp
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Benedikt Linz
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Arne Johannessen
- Department of Cardiology, Copenhagen University Hospital Gentofte, Hellerup, Denmark
| | - Martin Aar Haugdal
- Department of Cardiology, Copenhagen University Hospital Gentofte, Hellerup, Denmark
| | - Justin G L M Luermans
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Arnela Saljic
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Jespersen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jim Hansen
- Department of Cardiology, Copenhagen University Hospital Gentofte, Hellerup, Denmark
| | - Dominik Linz
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands; Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia.
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Farnir F, Chaldoupi SM, Farnir F, Schotten U, Vernooy K, Luermans J, Linz D. Focal point-by-point biphasic monopolar pulsed field ablation for posterior wall isolation. Europace 2024; 26:euae077. [PMID: 38517287 PMCID: PMC11017520 DOI: 10.1093/europace/euae077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 03/19/2024] [Indexed: 03/23/2024] Open
Affiliation(s)
- Florent Farnir
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands
| | - Sevasti-Maria Chaldoupi
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands
| | - Frédéric Farnir
- Department of Biostatistics and Bioinformatics, FARAH, Faculty of Veterinary Medicine, University of Liege, Liege, Belgium
| | - Ulrich Schotten
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands
| | - Kevin Vernooy
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands
| | - Justin Luermans
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands
| | - Dominik Linz
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
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Ruwald MH, Haugdal M, Worck R, Johannessen A, Hansen ML, Sørensen SK, Hansen J. Characterization of durability and reconnection patterns at time of repeat ablation after single-shot pulsed field pulmonary vein isolation. J Interv Card Electrophysiol 2024; 67:379-387. [PMID: 37776356 PMCID: PMC10902076 DOI: 10.1007/s10840-023-01655-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 09/17/2023] [Indexed: 10/02/2023]
Abstract
BACKGROUND Pulsed field ablation (PFA) is a novel method of cardiac ablation where there is insufficient knowledge on the durability and reconnection patterns after pulmonary vein isolation (PVI). The aim of this study was to characterize the electrophysiological findings at time of repeat procedure in real-world atrial fibrillation (AF) patients. METHODS Patients who underwent a repeat procedure (n=26) for symptomatic recurrent arrhythmias after index first-time treatment with single-shot PFA PVI (n=266) from July 2021 to June 2023 were investigated with 3D high-density mapping and ad-hoc re-ablation by radiofrequency or focal PFA. RESULTS Index indication for PVI was persistent AF in 17 (65%) patients. The mean time to repeat procedure was 292 ± 119 days. Of the 26 patients (104 veins), complete durable PVI was observed in 11/26 (42%) with a durable vein isolation rate of 72/104 (69%). Two patients (8%) had all four veins reconnected. The posterior wall was durably isolated in 4/5 (80%) of the cases. The predominant arrhythmia mechanism was AF in 17/26 (65%) patients and regular atrial tachycardia (AT) in 9/26 (35%). Reconnection was observed 9/26 (35%) in right superior, 11/26 (42%) in right inferior, 7/26 (27%) in left superior, 5/26 (19%) in left inferior, p=0.31 between veins. The gaps were significantly clustered in the right-sided anterior carina compared to other regions (P=0.009). CONCLUSIONS Durable PVI was observed in less than half of the patients at time of repeat procedure. No significant difference in PV reconnection pattern was observed, but the gap location was preferentially located at the anterior aspects of the right-sided PVs. Predominant recurrence was AF. More data is needed to establish lesion formation and durability and AT circuits after PFA.
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Affiliation(s)
- Martin H Ruwald
- Division of Electrophysiology, Department of Cardiology, Herlev-Gentofte Hospital, Gentofte Hospitalsvej 1, DK-2900, Hellerup, Denmark.
| | - Martin Haugdal
- Division of Electrophysiology, Department of Cardiology, Herlev-Gentofte Hospital, Gentofte Hospitalsvej 1, DK-2900, Hellerup, Denmark
| | - Rene Worck
- Division of Electrophysiology, Department of Cardiology, Herlev-Gentofte Hospital, Gentofte Hospitalsvej 1, DK-2900, Hellerup, Denmark
| | - Arne Johannessen
- Division of Electrophysiology, Department of Cardiology, Herlev-Gentofte Hospital, Gentofte Hospitalsvej 1, DK-2900, Hellerup, Denmark
| | - Morten Lock Hansen
- Division of Electrophysiology, Department of Cardiology, Herlev-Gentofte Hospital, Gentofte Hospitalsvej 1, DK-2900, Hellerup, Denmark
| | - Samuel K Sørensen
- Division of Electrophysiology, Department of Cardiology, Herlev-Gentofte Hospital, Gentofte Hospitalsvej 1, DK-2900, Hellerup, Denmark
| | - Jim Hansen
- Division of Electrophysiology, Department of Cardiology, Herlev-Gentofte Hospital, Gentofte Hospitalsvej 1, DK-2900, Hellerup, Denmark
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Weyand S, Adam V, Biehler P, Hägele P, Hanger S, Heinzmann D, Löbig S, Pinchuk A, Waechter C, Seizer P. Focal Pulsed Field Ablation for Atrial Arrhythmias: Efficacy and Safety under Deep Sedation. J Clin Med 2024; 13:576. [PMID: 38276082 PMCID: PMC10817052 DOI: 10.3390/jcm13020576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
Focal pulsed field ablation (PFA) is a novel technique for treating cardiac arrhythmias. It has demonstrated positive results in initial studies and has a good safety profile. In recent studies, PFA was often utilized for first-time pulmonary vein isolation (PVI) and was performed under general anesthesia. In our study, we assessed the feasibility, safety, acute procedural efficacy, and efficiency of focal PFA under deep sedation in patients, 80% of whom had undergone at least one left atrial ablation previously. We treated 30 patients (71 ± 7, 46% male) using the CENTAURI system for various atrial arrhythmias, including atrial fibrillation, typical and atypical atrial flutter, and focal atrial tachycardia. The average procedure and fluoroscopy times were 122 ± 43 min and 9 ± 7 min, respectively. A total of 83.33% of patients received additional line ablations beyond PVI, specifically targeting the posterior box and anterior mitral line. All ablations were successfully performed in deep sedation with only one major and one minor complication observed. The major complication was a vasospasm of the right coronary artery during ablation of the cavotricuspid isthmus, which was treated successfully with intracoronary nitroglycerin. All patients could be discharged in sinus rhythm. Moreover, adenosine appears effective in identifying dormant conduction in some patients after focal PFA. In conclusion, focal PFA is an effective approach for complex left atrial ablations under deep sedation, offering both high efficacy and efficiency with a reliable safety profile. Studies on long-term outcomes are needed.
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Affiliation(s)
- Sebastian Weyand
- Department of Cardiology, Ostalb Clinic Aalen, Im Kaelblesrain 1, 73430 Aalen, Germany; (S.W.); (V.A.); (P.B.); (P.H.); (S.H.); (S.L.); (A.P.)
| | - Viola Adam
- Department of Cardiology, Ostalb Clinic Aalen, Im Kaelblesrain 1, 73430 Aalen, Germany; (S.W.); (V.A.); (P.B.); (P.H.); (S.H.); (S.L.); (A.P.)
| | - Paloma Biehler
- Department of Cardiology, Ostalb Clinic Aalen, Im Kaelblesrain 1, 73430 Aalen, Germany; (S.W.); (V.A.); (P.B.); (P.H.); (S.H.); (S.L.); (A.P.)
| | - Patricia Hägele
- Department of Cardiology, Ostalb Clinic Aalen, Im Kaelblesrain 1, 73430 Aalen, Germany; (S.W.); (V.A.); (P.B.); (P.H.); (S.H.); (S.L.); (A.P.)
| | - Simon Hanger
- Department of Cardiology, Ostalb Clinic Aalen, Im Kaelblesrain 1, 73430 Aalen, Germany; (S.W.); (V.A.); (P.B.); (P.H.); (S.H.); (S.L.); (A.P.)
| | - David Heinzmann
- Department of Cardiology, University Hospital Tuebingen, Otfried-Mueller-Straße 10, 72076 Tuebingen, Germany
| | - Stephanie Löbig
- Department of Cardiology, Ostalb Clinic Aalen, Im Kaelblesrain 1, 73430 Aalen, Germany; (S.W.); (V.A.); (P.B.); (P.H.); (S.H.); (S.L.); (A.P.)
| | - Andrei Pinchuk
- Department of Cardiology, Ostalb Clinic Aalen, Im Kaelblesrain 1, 73430 Aalen, Germany; (S.W.); (V.A.); (P.B.); (P.H.); (S.H.); (S.L.); (A.P.)
| | - Christian Waechter
- Department of Cardiology, University Hospital Marburg, Philipps University Marburg, Baldingerstraße, 35043 Marburg, Germany;
| | - Peter Seizer
- Department of Cardiology, Ostalb Clinic Aalen, Im Kaelblesrain 1, 73430 Aalen, Germany; (S.W.); (V.A.); (P.B.); (P.H.); (S.H.); (S.L.); (A.P.)
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Farnir F, Luermans J, Manusama R, den Uijl D, Chaldoupi SM, Linz D. Focal point-by-point pulsed field ablation for the treatment of atrial arrhythmias in patients with challenging anatomy where radiofrequency ablation cannot be applied: A case series. HeartRhythm Case Rep 2024; 10:21-25. [PMID: 38264121 PMCID: PMC10801091 DOI: 10.1016/j.hrcr.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024] Open
Affiliation(s)
- Florent Farnir
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Justin Luermans
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Randolph Manusama
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
- Department of Cardiology, Zuyderland Medical Centre, Heerlen, The Netherlands
| | - Dennis den Uijl
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Sevasti Maria Chaldoupi
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Dominik Linz
- Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Worck R, Haugdal MA, Johannessen A, Hansen ML, Ruwald MH, Hansen J. A case of safe and durable focal pulsed-field electroporation treatment of outflow tract premature ventricular contractions. Heart Rhythm O2 2023; 4:463-465. [PMID: 37520020 PMCID: PMC10373145 DOI: 10.1016/j.hroo.2023.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023] Open
Affiliation(s)
- René Worck
- Address reprint requests and correspondence: Dr René Worck, Division of Electrophysiology, Department of Cardiology, Herlev and Gentofte Hospital, Gentofte Hospitalsvej 1, 2900 Hellerup, Denmark. @CopGAG@ReneWorck
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