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Kurtul BE, Kurtul A, Kaypakli O. Impact of catheter ablation procedure on optical coherence tomography angiography findings in patients with ventricular arrhythmia. REVISTA DA ASSOCIACAO MEDICA BRASILEIRA (1992) 2023; 69:e20230489. [PMID: 37729374 PMCID: PMC10508935 DOI: 10.1590/1806-9282.20230489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/25/2023] [Indexed: 09/22/2023]
Abstract
OBJECTIVE Catheter ablation procedure may cause retinal complications associated with the risk of thromboembolism. We aimed to evaluate retina and optic disc microvascularity with optical coherence tomography angiography before and after the catheter ablation process in patients with ventricular arrhythmia. METHODS A total of 40 eyes of 21 ventricular arrhythmia patients were included in this cross-sectional study. Demographic characteristics and ophthalmic examination findings of patients were recorded. optical coherence tomography angiography measurements were evaluated before (group 1) and after (group 2) catheter ablation. Optical coherence tomography angiography was applied to all eyes with 6×6 mm sections for the macula and 4.5×4.5 mm sections for the optic nerve head. Foveal retinal thickness, peripapillary retinal nerve fiber layer thickness, vessel density in different parts of the retina, and optic disc were analyzed. RESULTS The mean age of ventricular arrhythmia patients was 53.48±13.02 years. In all, 13 (61.9%) of the patients were males and 8 (38.1%) were females. There was no significant difference between the groups in terms of average, inferior, superior, and temporal retinal nerve fiber layer thicknesses, foveal avascular area, flow areas, superficial and deep vessel densities, and optic disc capillary densities of the optic disc. However, when compared with group 1, significantly lower values in foveal retinal thickness and higher values in nasal retinal nerve fiber layer thickness were observed in group 2 (248.42±20.50 vs. 247.20±20.44, p<0.001 and 94.22±18.43 vs. 96.12±20.18, p=0.044, respectively). CONCLUSION Although foveal retinal thickness and nasal retinal nerve fiber layer thickness are affected in patients undergoing catheter ablation for ventricular arrhythmia, the stable retinal and optic disc vessel densities can be explained by the administration of effective anticoagulants during the procedure.
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Affiliation(s)
- Bengi Ece Kurtul
- Hatay Mustafa Kemal University, Tayfur Ata Sökmen Faculty of Medicine, Department of Ophthalmology – Hatay, Turkey
| | - Alparslan Kurtul
- Hatay Mustafa Kemal University, Tayfur Ata Sökmen Faculty of Medicine, Department of Cardiology – Hatay, Turkey
| | - Onur Kaypakli
- Hatay Mustafa Kemal University, Tayfur Ata Sökmen Faculty of Medicine, Department of Cardiology – Hatay, Turkey
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Bourier F. [Catheter ablation of ventricular tachycardia-Update 2023]. Herz 2023:10.1007/s00059-023-05167-5. [PMID: 37130946 DOI: 10.1007/s00059-023-05167-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2023] [Indexed: 05/04/2023]
Abstract
The management of ventricular tachycardias (VT), which are often associated with severe cardiac disease, is a challenging clinical task. The structural damage to the myocardium associated with cardiomyopathy is crucial to the occurrence of VT and plays a fundamental role in arrhythmia mechanisms. The goal of catheter ablation is to develop an accurate understanding of the patient-specific arrhythmia mechanism as a first procedural step. As a second step, the ventricular areas that maintain the arrhythmia mechanism can be ablated and thereby electrically inactivated. Catheter ablation thereby enables causal therapy of VT by modifying the areas of the affected myocardium in such a way that VT can no longer be triggered. The procedure is an effective treatment option for affected patients.
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Affiliation(s)
- Felix Bourier
- Abteilung für Elektrophysiologie, Deutsches Herzzentrum München, Lazarettstr. 36, 80636, München, Deutschland.
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Deshmukh A, Gunda S, Siontis KC, Ghannam M, Liang J, Latchamsetty R, Jongnarangsin K, Morady F, Bogun F. Comparison of warfarin with direct oral anticoagulants for thromboembolic prophylaxis after catheter ablation of ventricular tachycardia. J Cardiovasc Electrophysiol 2023; 34:967-972. [PMID: 36655538 DOI: 10.1111/jce.15827] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/10/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023]
Abstract
INTRODUCTION Thromboembolic events after catheter ablation of ventricular tachycardia (VT) can result in significant morbidity. Thromboembolic prophylaxis after catheter ablation can be achieved by the use of antiplatelet agents, vitamin K antagonists, or direct oral anticoagulants (DOACs). The relative safety and efficacy of these modes of prophylaxis are uncertain. We sought to compare the outcomes of patients who received warfarin or DOACs for thromboembolic prophylaxis after catheter ablation of VT. METHODS AND RESULTS Anticoagulation with DOACS was started after left ventricular VT ablation in a series of 42 consecutive patients with structural heart disease (67 ± 11 years, 3 women, ejection fraction 32 ± 14%). Duration of hospital stay, bleeding episodes, and thromboembolic events were compared to a historic consecutive group of patients (n = 38, 65 ± 13 years, 14 women, ejection fraction 36 ± 13%) in whom anticoagulation with a formerly described protocol of heparin and vitamin K antagonist was used after VT ablation procedures. Hospital stay was significantly shorter in the group where DOACs were used as compared to vitamin K antagonists (3.3 ± 1.8 vs. 5.0 ± 2.5 days postablation; p = 0.001) without an increase of bleeding or thromboembolic events. CONCLUSION Anticoagulation with DOACs is safe and shortens hospital stay in patients with structural heart disease undergoing left ventricular VT ablation procedures.
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Affiliation(s)
- Amrish Deshmukh
- Division of Cardiovascular Medicine, Cardiac Arrhythmia Service, University of Michigan, Ann Arbor, Michigan, USA
| | - Sampath Gunda
- Division of Cardiovascular Medicine, Cardiac Arrhythmia Service, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Michael Ghannam
- Division of Cardiovascular Medicine, Cardiac Arrhythmia Service, University of Michigan, Ann Arbor, Michigan, USA
| | - Jackson Liang
- Division of Cardiovascular Medicine, Cardiac Arrhythmia Service, University of Michigan, Ann Arbor, Michigan, USA
| | - Rakesh Latchamsetty
- Division of Cardiovascular Medicine, Cardiac Arrhythmia Service, University of Michigan, Ann Arbor, Michigan, USA
| | - Krit Jongnarangsin
- Division of Cardiovascular Medicine, Cardiac Arrhythmia Service, University of Michigan, Ann Arbor, Michigan, USA
| | - Fred Morady
- Division of Cardiovascular Medicine, Cardiac Arrhythmia Service, University of Michigan, Ann Arbor, Michigan, USA
| | - Frank Bogun
- Division of Cardiovascular Medicine, Cardiac Arrhythmia Service, University of Michigan, Ann Arbor, Michigan, USA
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Randomized Comparison of a Radiofrequency Wire Versus a Radiofrequency Needle System for Transseptal Puncture. JACC Clin Electrophysiol 2022; 9:611-619. [PMID: 36752451 DOI: 10.1016/j.jacep.2022.10.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/31/2022] [Accepted: 10/11/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND Transseptal puncture is a necessary component of many electrophysiology and structural heart procedures. Improving this technique has broad ramifications for the overall efficiency and safety of these interventions. A new technology uses a specialized introducer wire to cross the septum with radiofrequency (RF) energy, eliminating the need for a transseptal needle and wire/needle exchanges. OBJECTIVES This study sought to compare the efficacy and safety of an RF needle versus RF wire approach for transseptal puncture. METHODS Individuals ≥18 years of age undergoing double transseptal puncture for atrial fibrillation or left atrial flutter ablation were randomized to a transseptal approach with either an RF needle or RF wire. The primary outcome was time to achieve first transseptal puncture. Secondary outcomes included second and combined transseptal puncture time, fluoroscopy time, number of equipment exchanges, and complications. RESULTS A total of 75 participants were enrolled (36 RF needle, 39 RF wire). No crossovers occurred. Randomization to the RF wire resulted in a significant reduction in first transseptal time compared with the RF needle (median 9.2 [IQR: 5.7-11.2] minutes vs 6.9 [IQR: 5.2-8.4] minutes, P = 0.03). Second and combined transseptal times, and number of equipment exchanges, were also reduced with the RF wire. One participant in the RF needle group experienced transient atrioventricular block due to mechanical trauma from the sheath/dilator assembly. There were no complications in the RF wire group. CONCLUSIONS The RF wire technique resulted in faster time to transseptal puncture and fewer equipment exchanges compared with an RF needle with no difference in complications.
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Bourier F, Busch S, Sommer P, Maurer T, Althoff T, Shin DI, Duncker D, Johnson V, Estner H, Rillig A, Bertagnolli L, Iden L, Deneke T, Tilz R, Metzner A, Chun J, Steven D. [Catheter ablation of ventricular tachycardias in patients with ischemic cardiomyopathy]. Herzschrittmacherther Elektrophysiol 2022; 33:88-97. [PMID: 35157112 DOI: 10.1007/s00399-022-00845-z] [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: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 10/19/2022]
Abstract
Radiofrequency (RF) ablation is an effective treatment option of scar-related ventricular tachycardias (VT) in patients with ischemic cardiomyopathy. Several studies proved the benefit of VT catheter ablation, which has become routine in most electrophysiology laboratories. This article provides practical instructions to perform a VT catheter ablation. The authors describe conventional and substrate-based mapping and ablation strategies as well as concepts for image integration. This article continues a series of publications created for education in advanced electrophysiology.
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Affiliation(s)
- Felix Bourier
- Abteilung für Elektrophysiologie, Deutsches Herzzentrum München, Technische Universität München, München, Deutschland.
| | - Sonia Busch
- Medizinische Klinik, Klinikum Coburg GmbH, Coburg, Deutschland
| | - Philipp Sommer
- Klinik für Elektrophysiologie/Rhythmologie, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Deutschland
| | - Tilman Maurer
- Klinik für Kardiologie, Asklepios Klinik St. Georg, Hamburg, Deutschland
| | - Till Althoff
- Med. Klinik m.S. Kardiologie u. Angiologie, Charité - Universitätsmedizin Medizin Berlin, Berlin, Deutschland
| | - Dong-In Shin
- Klinik für Kardiologie, Herzzentrum Niederrhein, HELIOS Klinikum Krefeld, Krefeld, Deutschland.,Center for Clinical Medicine Witten-Herdecke, University Faculty of Health, Wuppertal, Deutschland
| | - David Duncker
- Hannover Herzrhythmus Centrum, Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - Victoria Johnson
- Klinik für Innere Medizin, Universitätsklinikum Gießen, Gießen, Deutschland
| | - Heidi Estner
- Medizinische Klinik und Poliklinik I, LMU Klinikum der Universität München, München, Deutschland
| | - Andreas Rillig
- Universitäres Herzzentrum Hamburg, Universitätsklinikum Eppendorf, Hamburg, Deutschland
| | - Livio Bertagnolli
- Abteilung für Rhythmologie, Herzzentrum HELIOS Leipzig, Leipzig, Deutschland
| | - Leon Iden
- Klinik für Kardiologie, Herz- und Gefäßzentrum Bad Segeberg, Bad Segeberg, Deutschland
| | - Thomas Deneke
- Klinik für Kardiologie, Rhön-Klinikum, Campus Bad Neustadt, Bad Neustadt a. d. Saale, Deutschland
| | - Roland Tilz
- Sektion für Elektrophysiologie, Medizinische Klinik II, Universitäres Herzzentrum Lübeck, Universitätsklinikum Schleswig-Holstein (UKSH), Lübeck, Deutschland
| | - Andreas Metzner
- Universitäres Herzzentrum Hamburg, Universitätsklinikum Eppendorf, Hamburg, Deutschland
| | - Julian Chun
- Cardioangiologisches Centrum Bethanien - CCB, Frankfurt, Deutschland
| | - Daniel Steven
- Abteilung für Elektrophysiologie, Herzzentrum der Uniklinik Köln, Köln, Deutschland
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