1
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Suzuki A, Lehmann HI, Konishi H, Wang S, Hohmann S, Rettman ME, Newman LK, Parker KD, Curley MG, Packer DL. Potential microemboli formation risk and its management during the heated saline-enhanced radiofrequency needle-tip catheter ablation. Heart Rhythm 2024:S1547-5271(24)02663-8. [PMID: 38823665 DOI: 10.1016/j.hrthm.2024.05.050] [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: 01/21/2024] [Revised: 05/10/2024] [Accepted: 05/27/2024] [Indexed: 06/03/2024]
Abstract
BACKGROUND The potential risk of embolic events during ablation in the left ventricle (LV) with a heated saline-enhanced radiofrequency (SERF) needle-tip ablation catheter has not been characterized. OBJECTIVE This study aimed to investigate the formation of microemboli or other untoward events during SERF ablation. METHODS Ninety-three radiofrequency (RF) ablation procedures were performed in the LV of 14 pigs by using a SERF catheter (35 W, 70 seconds, and 60°C; normal or degassed saline [NS or DS] irrigation with a flow rate of 10 mL/min) vs a standard irrigated-tip radiofrequency (S-RF) catheter (30 or 50 W, 30 seconds, and 17 mL/min). Microbubble formation was graded on the basis of intracardiac echocardiography. Microbubbles, microembolic signals, and microparticles were monitored using our established model. RESULTS There was no significant difference in microbubble volume among SERF-NS, SERF-DS, and S-RF 30 W with "grade 1" intracardiac echocardiography microbubbles (median and 25th-75th percentiles 0.201 [0.011-3.13], 0.455 [0.06-2.66], and 0.004 μL [0.00-0.16 μL], respectively). There was no significant difference in microembolic signals among SERF-NS, SERF-DS, and S-RF 30 W with grade 1 bubbles (n = 8.0 ± 5.8, n = 7.6 ± 4.2, and n = 6.1 ± 6.1, respectively). Both SERF-NS and SERF-DS created larger lesions than did both S-RF 30 W and S-RF 50 W deliveries (mean 1241.5 ± 658.6, 1497.7 ± 893.4, 75.0 ± 24.8, and 184.0 ± 93.8 mm3; P < .001). There was no significant difference in microparticle incidence among groups (P = .675). No evidence of embolic events was found in the brain and other organs at the histology assessment. CONCLUSION In the setting of SERF ablation, significantly large LV lesions can be created without any increment in embolic microbubble or particle events. Grade 1 microbubble is related to the efficacy and safety.
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Affiliation(s)
- Atsushi Suzuki
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic/St. Marys Campus, Rochester, Minnesota; Department of Cardiology, Yodogawa Christian Hospital, Osaka, Japan
| | - H Immo Lehmann
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic/St. Marys Campus, Rochester, Minnesota; Department of Cardiology, Corrigan Minehan Heart Center, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts
| | - Hiroki Konishi
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic/St. Marys Campus, Rochester, Minnesota
| | - Songyun Wang
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic/St. Marys Campus, Rochester, Minnesota; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Stephan Hohmann
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic/St. Marys Campus, Rochester, Minnesota
| | - Maryam E Rettman
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic/St. Marys Campus, Rochester, Minnesota
| | - Laura K Newman
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic/St. Marys Campus, Rochester, Minnesota
| | - Kay D Parker
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic/St. Marys Campus, Rochester, Minnesota
| | | | - Douglas L Packer
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic/St. Marys Campus, Rochester, Minnesota.
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2
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Kaszala K, Ellenbogen KA. Is it good to be cool before you PFA? J Cardiovasc Electrophysiol 2023; 34:2134-2135. [PMID: 36218018 DOI: 10.1111/jce.15700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 10/06/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Karoly Kaszala
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA
- Hunter Holmes McGuire Veterans Affairs Medical Center, Richmond, Virginia, USA
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3
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Zhang J, Li S, Sang C, Ma C. Atrial fibrillation catheter ablation associated silent cerebral emboli: A narrative review. Pacing Clin Electrophysiol 2023; 46:1124-1133. [PMID: 37578003 DOI: 10.1111/pace.14779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 06/12/2023] [Accepted: 06/26/2023] [Indexed: 08/15/2023]
Abstract
The incidence of silent cerebral emboli (SCE) associated with atrial fibrillation catheter ablation (AFCA) is much higher than that of stroke/transient ischemic attack (TIA). Interventional electrophysiologists have been increasingly alerted to asymptomatic cerebral infarction over the years. Plentiful studies revealed that diagnostic definitions, detection modalities, energy sources, ablation strategies, perioperative anticoagulation regimens, and patient-related factors were associated with the risk of AFCA-associated SCE. Studies related to non-interventional procedures found that SCE may prompt stroke, cognitive decline, and dementia later in life, suggesting a possible role of AFCA-associated SCE in the cognitive function of patients with AF. However, there is no consistent evidence for this view to date. Given that the majority of patients with AF being elderly and the increased risk of cognitive impairment in AF itself, efforts should be made to minimize the occurrence of AFCA-associated SCE.
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Affiliation(s)
- Jingrui Zhang
- Beijing Anzhen Hospital affiliated Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing, China
| | - Songnan Li
- Beijing Anzhen Hospital affiliated Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing, China
| | - Caihua Sang
- Beijing Anzhen Hospital affiliated Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing, China
| | - Changsheng Ma
- Beijing Anzhen Hospital affiliated Capital Medical University, Beijing, China
- National Clinical Research Center for Cardiovascular Diseases, Beijing, China
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4
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Preda A, Montalto C, Galasso M, Munafò A, Garofani I, Baroni M, Gigli L, Vargiu S, Varrenti M, Colombo G, Carbonaro M, Della Rocca DG, Oreglia J, Mazzone P, Guarracini F. Fighting Cardiac Thromboembolism during Transcatheter Procedures: An Update on the Use of Cerebral Protection Devices in Cath Labs and EP Labs. Life (Basel) 2023; 13:1819. [PMID: 37763223 PMCID: PMC10532856 DOI: 10.3390/life13091819] [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: 07/31/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
Intraprocedural stroke is a well-documented and feared potential risk of cardiovascular transcatheter procedures (TPs). Moreover, subclinical neurological events or covert central nervous system infarctions are concerns related to the development of dementia, future stroke, cognitive decline, and increased risk of mortality. Cerebral protection devices (CPDs) were developed to mitigate the risk of cardioembolic embolism during TPs. They are mechanical barriers designed to cover the ostium of the supra-aortic branches in the aortic arch, but newer devices are able to protect the descending aorta. CPDs have been mainly designed and tested to provide cerebral protection during transcatheter aortic valve replacement (TAVR), but their use in both Catheterization and Electrophysiology laboratories is rapidly increasing. CPDs have allowed us to perform procedures that were previously contraindicated due to high thromboembolic risk, such as in cases of intracardiac thrombosis identified at preprocedural assessment. However, several concerns related to their employment have to be defined. The selection of patients at high risk of thromboembolism is still a subjective choice of each center. The aim of this review is to update the evidence on the use of CPDs in either Cath labs or EP labs, providing an overview of their structural characteristics. Future perspectives focusing on their possible future employment are also discussed.
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Affiliation(s)
- Alberto Preda
- Electrophysiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
| | - Claudio Montalto
- Interventional Cardiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy; (C.M.); (A.M.)
| | - Michele Galasso
- Interventional Cardiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy; (C.M.); (A.M.)
| | - Andrea Munafò
- Interventional Cardiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy; (C.M.); (A.M.)
| | - Ilaria Garofani
- Electrophysiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
| | - Matteo Baroni
- Electrophysiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
| | - Lorenzo Gigli
- Electrophysiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
| | - Sara Vargiu
- Electrophysiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
| | - Marisa Varrenti
- Electrophysiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
| | - Giulia Colombo
- Electrophysiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
| | - Marco Carbonaro
- Electrophysiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
| | - Domenico Giovanni Della Rocca
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, European Reference Networks Guard-Heart, 1090 Brussels, Belgium
- Texas Cardiac Arrhythmia Institute, St. David’s Medical Center, Austin, TX 78705, USA
| | - Jacopo Oreglia
- Interventional Cardiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy; (C.M.); (A.M.)
| | - Patrizio Mazzone
- Electrophysiology Unit, De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
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5
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Lavalle C, Magnocavallo M, Vetta G, Piro A, Borrelli A, Grimaldi M, Rossillo A, Notarstefano P, Carreras G, Addonisio L, Dello Russo A, Perna F, Castro A, Grossi S, Pandozi C, Pappalardo A, Sgarito G, Forleo GB. Rationale and study design of the Italian Registry in the setting of Atrial Fibrillation Ablation with Rivaroxaban - IRIS. Minerva Cardiol Angiol 2023; 71:91-99. [PMID: 35080355 DOI: 10.23736/s2724-5683.21.05832-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Catheter ablation (CA) of atrial fibrillation (AF) is used routinely to establish rhythm control. There is mounting evidence that CA procedures should be performed during continuous oral anticoagulation and direct oral anticoagulants (DOACs) are considered the first anticoagulation strategy. Few real-life data are now available and even less in the Italian panorama. METHODS IRIS is an Italian multicenter, non-interventional, prospective study which will be enrolled consecutive AF patients eligible for CA and treated with Rivaroxaban; patients in treatment with Rivaroxaban proceeded directly to CA while Rivaroxaban-naive patients were scheduled for CA after 4 weeks of uninterrupted anticoagulation unless the exclusion of atrial thrombi. Rivaroxaban was uninterrupted or shortly uninterrupted (<24 hours) prior CA, in line with routinely practice of each operator. Patients will be followed on continuous anticoagulation for 1 month after the ablation. The primary efficacy outcome is the cumulative incidence of all-cause death and systemic embolism while the primary safety outcome is the incidence of major bleeding events. The secondary outcomes are represented by non-major bleeding events. All events must be occurred within the first 30 days after the procedure. RESULTS Two hundred fifty patients are expected to be enrolled and the study is estimated to be completed by the end of 2022. Up to now 56 patients have been enrolled. CONCLUSIONS This study is the first large Italian prospective study on the management of Rivaroxaban in patients undergoing CA of AF. It aims to depict a comprehensive view of anticoagulation strategy prior CA in several Italian electrophysiology labs.
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Affiliation(s)
- Carlo Lavalle
- Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences, Sapienza University, Rome, Italy -
| | - Michele Magnocavallo
- Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences, Sapienza University, Rome, Italy
| | - Giampaolo Vetta
- Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences, Sapienza University, Rome, Italy
| | - Agostino Piro
- Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences, Sapienza University, Rome, Italy
| | | | - Massimo Grimaldi
- Department of Cardiology, F. Miulli Regional General Hospital, Acquaviva delle Fonti, Bari, Italy
| | | | | | - Giovanni Carreras
- Department of Cardiology, S. Maria University Hospital, Terni, Italy
| | - Luigi Addonisio
- Department of Cardiology, Misericordia Hospital, Grosseto, Italy
| | - Antonio Dello Russo
- Cardiology and Arrhythmology Clinic, Department of Biomedical Science and Public Health, Ospedali Riuniti University Hospital, Marche Polytechnic University, Ancona, Italy
| | - Francesco Perna
- Department of Cardiology, IRCCS A. Gemelli University Polyclinic Foundation, Rome, Italy
| | | | - Stefano Grossi
- Division of Cardiology, Mauriziano Umberto I Hospital, Turin, Italy
| | - Claudio Pandozi
- Division of Cardiology, San Filippo Neri Hospital, Rome, Italy
| | - Augusto Pappalardo
- Division of Cardiology, Unit of Cardiac Arrhythmias, San Camillo Hospital, Rome, Italy
| | - Giuseppe Sgarito
- Division of Cardiology, ARNAS Benfratelli Civic Hospital, Palermo, Italy
| | - Giovanni B Forleo
- Unit of Cardiology, ASST-Fatebenefratelli Sacco, Luigi Sacco University Hospital, Milan, Italy
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6
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Zhao X, Ziv O, Mohammadpour R, Crosby B, Hoyt WJ, Jenkins MW, Snyder C, Hendon C, Laurita KR, Rollins AM. Polarization-sensitive optical coherence tomography monitoring of percutaneous radiofrequency ablation in left atrium of living swine. Sci Rep 2021; 11:24330. [PMID: 34934120 PMCID: PMC8692484 DOI: 10.1038/s41598-021-03724-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 12/06/2021] [Indexed: 11/12/2022] Open
Abstract
Radiofrequency ablation (RFA) is commonly used to treat atrial fibrillation (AF). However, the outcome is often compromised due to the lack of direct real-time feedback to assess lesion transmurality. In this work, we evaluated the ability of polarization-sensitive optical coherence tomography (PSOCT) to measure cardiac wall thickness and assess RF lesion transmurality during left atrium (LA) RFA procedures. Quantitative transmural lesion criteria using PSOCT images were determined ex vivo using an integrated PSOCT-RFA catheter and fresh swine hearts. LA wall thickness of living swine was measured with PSOCT and validated with a micrometer after harvesting the heart. A total of 38 point lesions were created in the LA of 5 living swine with the integrated PSOCT-RFA catheter using standard clinical RFA procedures. For all lesions with analyzable PSOCT images, lesion transmurality was assessed with a sensitivity of 89% (17 of 19 tested positive) and a specificity of 100% (5 of 5 tested negative) using the quantitative transmural criteria. This is the first report of using PSOCT to assess LA RFA lesion transmurality in vivo. The results indicate that PSOCT may potentially provide direct real-time feedback for LA wall thickness and lesion transmurality.
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Affiliation(s)
- Xiaowei Zhao
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Ohad Ziv
- School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Heart and Vascular Research Center, MetroHealth Medical Center, Cleveland, OH, USA
| | | | - Benjamin Crosby
- Department of Chemistry, Case Western Reserve University, Cleveland, OH, USA
| | - Walter J Hoyt
- Department of Pediatrics, Ochsner Health, New Orleans, LA, USA
| | - Michael W Jenkins
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH, USA
| | - Christopher Snyder
- School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- The Congenital Heart Collaborative, Rainbow Babies and Children's Hospital, Cleveland, OH, USA
| | - Christine Hendon
- Department of Electrical Engineering, Columbia University, New York, NY, USA
| | - Kenneth R Laurita
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- Heart and Vascular Research Center, MetroHealth Medical Center, Cleveland, OH, USA
| | - Andrew M Rollins
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA.
- School of Medicine, Case Western Reserve University, Cleveland, OH, USA.
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7
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Konishi H, Suzuki A, Hohmann S, Parker KD, Newman LK, Monahan KH, Rettmann ME, Packer DL. Comparison of Microemboli Formation Between Irrigated Catheter Tip Architecture Using a Microemboli Monitoring System. JACC Clin Electrophysiol 2021; 8:26-37. [PMID: 34454888 DOI: 10.1016/j.jacep.2021.06.012] [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: 02/23/2021] [Revised: 06/15/2021] [Accepted: 06/16/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES This study aimed to compare the efficacy and safety of ablation with high and low power settings using either a flexible tip or straight SF tip irrigated catheter in the left ventricle (LV) using a peripheral microemboli monitoring system. BACKGROUND The microemboli risk of flexible and straight SF tip irrigated catheters in creating ablative lesions in the LV at variable power settings has not been adequately assessed. METHODS Six pigs underwent catheter ablation in the LV using a flexible tip or straight SF tip catheter with 2 energy settings (30 or 50 W, 30 seconds, irrigation saline 17 mL/min). RESULTS A total of 79 radiofrequency (RF) applications were assessed. High power settings via a flexible tip formed a significantly higher arterial microbubble volume in the extracorporeal circulation (P = 0.005). Notably, RF applications with a steam pop induced an exponential increase of microbubble volume with both catheters. A higher power setting induced a significantly higher number of microembolic signals on carotid artery Doppler ultrasound with a flexible tip irrigated catheter (P < 0.001). Similarly, the straight SF tip irrigated catheter tended to increase the number of microembolic signals with 50 W (P = 0.091). CONCLUSIONS RF ablation at high power settings in the LV carries a risk of microembolic events compared with lower power settings. When high power settings are used for creating ablative lesions for deep intramural foci in the LV, the risk of microembolic events induced by RF ablation should be carefully monitored.
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Affiliation(s)
- Hiroki Konishi
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Atsushi Suzuki
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Stephan Hohmann
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Kay D Parker
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Laura K Newman
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Kristi H Monahan
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Maryam E Rettmann
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Douglas L Packer
- Translational Interventional Electrophysiology Laboratory, Mayo Clinic, Rochester, Minnesota, USA.
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8
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Groen MHA, van Es R, van Klarenbosch BR, Stehouwer M, Loh P, Doevendans PA, Wittkampf FH, Neven K. In vivo analysis of the origin and characteristics of gaseous microemboli during catheter-mediated irreversible electroporation. Europace 2021; 23:139-146. [PMID: 33111141 PMCID: PMC7842095 DOI: 10.1093/europace/euaa243] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 07/27/2020] [Indexed: 01/21/2023] Open
Abstract
Aims Irreversible electroporation (IRE) ablation is a non-thermal ablation method based on the application of direct current between a multi-electrode catheter and skin electrode. The delivery of current through blood leads to electrolysis. Some studies suggest that gaseous (micro)emboli might be associated with myocardial damage and/or (a)symptomatic cerebral ischaemic events. The aim of this study was to compare the amount of gas generated during IRE ablation and during radiofrequency (RF) ablation. Methods and results In six 60–75 kg pigs, an extracorporeal femoral shunt was outfitted with a bubble-counter to detect the size and total volume of gas bubbles. Anodal and cathodal 200 J IRE applications were delivered in the left atrium (LA) using a 14-electrode circular catheter. The 30 and 60 s 40 W RF point-by-point ablations were performed. Using transoesophageal echocardiography (TOE), gas formation was visualized. Average gas volumes were 0.6 ± 0.6 and 56.9 ± 19.1 μL (P < 0.01) for each anodal and cathodal IRE application, respectively. Also, qualitative TOE imaging showed significantly less LA bubble contrast with anodal than with cathodal applications. Radiofrequency ablations produced 1.7 ± 2.9 and 6.7 ± 7.4 μL of gas, for 30 and 60 s ablation time, respectively. Conclusion Anodal IRE applications result in significantly less gas formation than both cathodal IRE applications and RF applications. This finding is supported by TOE observations.
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Affiliation(s)
- Marijn H A Groen
- Department of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - René van Es
- Department of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - Bas R van Klarenbosch
- Department of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - Marco Stehouwer
- Department of Extracorporeal Circulation, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Peter Loh
- Department of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - Pieter A Doevendans
- Department of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.,Netherlands Heart Institute, Utrecht, The Netherlands
| | - Fred H Wittkampf
- Department of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - Kars Neven
- Department of Cardiology, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.,Department of Electrophysiology, Alfried Krupp Krankenhaus, Essen, Germany.,Faculty of Health, Witten/Herdecke University, Witten, Germany
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9
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Scratching the electrode surface: Insights into a high-voltage pulsed-field application from in vitro & in silico studies in indifferent fluid. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.137187] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Nakamura K, Sasaki T, Take Y, Minami K, Sasaki W, Kishi S, Yoshimura S, Okazaki Y, Miki Y, Goto K, Kaseno K, Yamashita E, Koyama K, Funabashi N, Naito S. Effect of preventing air intrusion on silent strokes during atrial fibrillation ablation using a mini-basket catheter. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2020; 44:71-81. [PMID: 33216388 DOI: 10.1111/pace.14131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 11/04/2020] [Accepted: 11/15/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Air bubble intrusion through transseptal sheaths during left atrial (LA) catheter ablation can cause cerebral embolisms, especially when using complex-shape catheters. This study aimed to compare the incidence of silent cerebral events (SCEs) after atrial fibrillation (AF) catheter ablation using a mini-basket catheter (IntellaMap Orion; Boston Scientific) between the following groups: group SP, strict prevention of LA air intrusion and group CP, conventional air intrusion prevention. METHODS We enrolled 123 consecutive AF patients (group SP, n = 61 and group CP, n = 62) who underwent brain magnetic resonance imaging after a local-impedance-guided ablation using one mini-basket catheter and one circular mapping catheter. The preventive strategy in group SP included (a) the insertion of the mini-basket catheter into the transseptal sheaths in a container filled with heparinized saline and (b) no exchange of all catheters over the sheaths. RESULTS SCEs were detected in 67 patients (54.5%), and the incidence of SCEs did not significantly differ between groups SP and CP (55.7% vs 53.2%; P = .780). A multivariate analysis demonstrated that an older age, non-paroxysmal AF, and radiofrequency (RF) power output were independent positive predictors of SCEs (odds ratios: 1.079, 5.613, and 1.405; P = .005, <.001, and .012). On the follow-up MR imaging, 83.5% of the SCEs in group SP and 87.7% in group CP disappeared (P = .398). CONCLUSIONS Strict prevention of LA air intrusion may have no additional effect for reducing the incidence of SCEs after local impedance-guided AF ablation using a mini-basket catheter. An older age, non-paroxysmal AF, and high-power RF applications may increase the risk of SCEs.
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Affiliation(s)
- Kohki Nakamura
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Takehito Sasaki
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Yutaka Take
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Kentaro Minami
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Wataru Sasaki
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Shohei Kishi
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Shingo Yoshimura
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Yoshinori Okazaki
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Yuko Miki
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Koji Goto
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Kenichi Kaseno
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Eiji Yamashita
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Keiko Koyama
- Division of Radiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
| | - Nobusada Funabashi
- Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Shigeto Naito
- Division of Cardiology, Gunma Prefectural Cardiovascular Center, Maebashi, Japan
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11
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Atrial fibrillation ablation strategies and technologies: past, present, and future. Clin Res Cardiol 2020; 110:775-788. [DOI: 10.1007/s00392-020-01751-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 09/30/2020] [Indexed: 12/31/2022]
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12
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Uninterrupted use of direct oral anticoagulants versus vitamin K antagonists for catheter ablation of atrial fibrillation with PVAC gold: incidence of silent cerebral microembolic events. J Interv Card Electrophysiol 2020; 62:39-47. [PMID: 32951115 DOI: 10.1007/s10840-020-00863-2] [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: 07/25/2020] [Accepted: 09/04/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Silent cerebral microembolic events (SCE) after duty-cycled ablation of atrial fibrillation using PVAC have been detected by cerebral magnet resonance imaging (MRI) in a substantial number of patients. The purpose of this study was to investigate if uninterrupted oral anticoagulation with non-vitamin K antagonists (NOACs) compared with vitamin K antagonists (VKA) affects the incidence of SCE after pulmonary vein isolation (PVI) using PVAC Gold. METHODS Eighty-four consecutive patients (62 ± 15 years, 58% male) undergoing a first PVI were prospectively enrolled. Of these, 42 were on VKA and 42 on uninterrupted NOAC treatment. An activated clotting time (ACT) ≥ 350 s was targeted for ablation. RESULTS Cerebral MRI the day after PVI revealed acute diffusion-weighted positive lesions in 11/42 (26%) VKA compared with 14/42 (33%) in NOAC patients (p = 0.634). No differences were found for lesion size, number of lesions/patient, and number of lesions indicating cerebral infarction (2.4% for VKA and 4.8% for NOAC patients). Seventy-five percent of NOAC patients with sporadic ACT levels < 300 s during PVI developed SCE compared with 22% of corresponding VKA patients (p = 0.030). VKA and NOAC subgroups with ACT ≥ 350 s had no reduced incidence of SCE compared with ACT 300-350 s. CONCLUSIONS A significant, but comparable, number of patients under uninterrupted anticoagulation with VKA or NOACs still experience SCE after PVAC Gold PVI. NOAC patients with sporadic subtherapeutic ACT levels during PVI are at the highest risk for SCE while permanent ACT levels ≥ 350 s did not further reduce the incidence of SCE in both groups.
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13
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Asirvatham SJ, van Zyl M. The Coagulation and Atrial Fibrillation Ablation Cascades: A Complex Interaction. JACC Clin Electrophysiol 2020; 5:1428-1431. [PMID: 31857042 DOI: 10.1016/j.jacep.2019.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 09/12/2019] [Indexed: 11/17/2022]
Affiliation(s)
- Samuel J Asirvatham
- Department of Cardiovascular Diseases and Internal Medicine, Division of Pediatric Cardiology, Mayo Clinic College of Medicine, Rochester, Minnesota; Department of Anatomy and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota.
| | - Martin van Zyl
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
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14
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Bradley CJ, Haines DE. Pulsed field ablation for pulmonary vein isolation in the treatment of atrial fibrillation. J Cardiovasc Electrophysiol 2020; 31:2136-2147. [DOI: 10.1111/jce.14414] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 02/02/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Christopher J. Bradley
- Department of Cardiovascular Medicine, Beaumont HospitalOakland University William Beaumont School of Medicine Royal Oak Michigan
| | - David E. Haines
- Department of Cardiovascular Medicine, Beaumont HospitalOakland University William Beaumont School of Medicine Royal Oak Michigan
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15
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Intracardiac Fibrinolysis and Endothelium Activation Related to Atrial Fibrillation Ablation with Different Techniques. Cardiol Res Pract 2020; 2020:1570483. [PMID: 32104599 PMCID: PMC7037955 DOI: 10.1155/2020/1570483] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 12/31/2019] [Indexed: 12/25/2022] Open
Abstract
Objective The effect of pulmonary vein isolation (PVI) on fibrinolytic and endothelial activation with currently applied periprocedural anticoagulation has not been explored. We measured markers of fibrinolysis and endothelium activation before and after PVI with the second-generation cryoballoon (Cryo), pulmonary vein ablation catheter (PVAC-Gold), and irrigated radiofrequency (IRF). Methods Markers of fibrinolysis and endothelium activation in left atrial (LA) blood samples were measured in 31 patients before and after PVI (Cryo:10, PVAC-Gold: 7, IRF: 14). Periprocedural anticoagulation included uninterrupted vitamin K antagonist and iv heparin (ACT≥300 sec) during LA dwelling. Results Levels of D-dimer (median; interquartile range, mgFEU/L) increased with all techniques (PVAC: 0.34; 0.24–0.50 versus 0.70; 0.61–1.31; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; PAP complex level (ng/ml) increased after Cryo (247.3, 199.9–331.6 versus 270.9, 227.9–346.7; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; PAI-1 activity (%) decreased with the PVAC (1.931; 0.508–3.859 versus 0.735, 0.240–2.707; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; VWF antigen levels and FVIII activity increased after PVI with all the 3 techniques. The levels of soluble VCAM-1 (ng/ml) did not change after PVAC procedures, but increased after Cryo (542, 6; 428.5–753.1 versus 619.2; 499.8–799.0; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; p=0.0313, Cryo: 0.33; 0.28–0.49 versus 0.79; 0.65–0.93; Conclusion PVI with contemporary ablation techniques and periprocedural antithrombotic treatment induces coagulation and endothelium activation of similar magnitude with different ablation methods.
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16
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Es R, Groen MHA, Stehouwer M, Doevendans PA, Wittkampf FHM, Neven K. In vitro analysis of the origin and characteristics of gaseous microemboli during catheter electroporation ablation. J Cardiovasc Electrophysiol 2019; 30:2071-2079. [DOI: 10.1111/jce.14091] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/04/2019] [Accepted: 07/21/2019] [Indexed: 12/15/2022]
Affiliation(s)
- René Es
- Department of CardiologyUniversity Medical Center UtrechtUtrecht The Netherlands
| | - Marijn H. A. Groen
- Department of CardiologyUniversity Medical Center UtrechtUtrecht The Netherlands
| | - Marco Stehouwer
- Department of Extracorporeal CirculationSt Antonius HospitalNieuwegein The Netherlands
| | - Pieter A. Doevendans
- Department of CardiologyUniversity Medical Center UtrechtUtrecht The Netherlands
- Netherlands Heart InstituteUtrecht The Netherlands
| | - Fred H. M. Wittkampf
- Department of CardiologyUniversity Medical Center UtrechtUtrecht The Netherlands
| | - Kars Neven
- Department of CardiologyUniversity Medical Center UtrechtUtrecht The Netherlands
- Department of ElectrophysiologyAlfried Krupp KrankenhausEssen Germany
- Faculty of HealthWitten/Herdecke UniversityWitten Germany
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17
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Sugrue A, Vaidya V, Yasin O, Isath A, Abudan A, Padmanabhan D, Kapa S, Asirvatham SJ. Development of a novel ablation hood to prevent systemic embolization of microbubbles and particulate emboli. J Interv Card Electrophysiol 2019; 58:281-288. [PMID: 31372780 DOI: 10.1007/s10840-019-00595-y] [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: 04/30/2019] [Accepted: 07/11/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Atrial fibrillation ablation results in microbubbles and particulate emboli formation. We aimed to develop and test the early feasibility of a novel ablation hood to contain microbubbles and particulate emboli with the ultimate goal of preventing systemic embolization. METHODS In seven canines, we developed, iterated, and tested a novel retractable hood that can cover the catheter-tissue ablation site. The number and volume (nL) of microbubbles formed during ablation with and without the hood was measured using an extracorporeal circulation loop. Wilcoxon's signed-rank test was used to compare the number of bubbles detected with and without the hood. RESULTS The hood reduced systemic embolization of microbubbles in 21/28 (75%) of ablations. Both atrial and ventricular ablations showed a statistically significant reduction in bubble number (476 ± 811 without hood vs 173 ± 226 with hood, p = 0.02; 2669 ± 1623 without hood vs 1417 ± 970 with hood, p = 0.04, respectively) and bubble volume (3.3 ± 7.6 nL without hood vs 0.2 ± 0.56 nL with hood, p = 0.006; 6.1 ± 5.2 nL without hood vs 1.9 ± 1.4 nL with hood, p = 0.05, respectively). CONCLUSIONS Use of a novel hood to cover the ablation catheter at the site of catheter-tissue contact has the potential to provide a means to reduce systematic embolization of microbubbles. Further work is required to examine particulate emboli, but these data show the early feasibility of this design concept.
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Affiliation(s)
- Alan Sugrue
- Division of Heart Rhythm, Department of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Vaibhav Vaidya
- Division of Heart Rhythm, Department of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Omar Yasin
- Division of Heart Rhythm, Department of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Ameesh Isath
- Division of Heart Rhythm, Department of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Anas Abudan
- Division of Heart Rhythm, Department of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Deepak Padmanabhan
- Division of Heart Rhythm, Department of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Suraj Kapa
- Division of Heart Rhythm, Department of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Samuel J Asirvatham
- Division of Heart Rhythm, Department of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA. .,Department of Pediatric and Adolescent Medicine/Division of Pediatric Cardiology, Mayo Clinic, Rochester, MN, USA.
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18
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Midterm results of laser generated in situ fenestration of the left subclavian artery during thoracic endovascular aneurysm repair. J Vasc Surg 2019; 69:1664-1669. [DOI: 10.1016/j.jvs.2018.09.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Accepted: 09/30/2018] [Indexed: 11/18/2022]
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19
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Stewart MT, Haines DE, Verma A, Kirchhof N, Barka N, Grassl E, Howard B. Intracardiac pulsed field ablation: Proof of feasibility in a chronic porcine model. Heart Rhythm 2019; 16:754-764. [DOI: 10.1016/j.hrthm.2018.10.030] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Indexed: 02/07/2023]
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20
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Dagres N, Chao TF, Fenelon G, Aguinaga L, Benhayon D, Benjamin EJ, Bunch TJ, Chen LY, Chen SA, Darrieux F, de Paola A, Fauchier L, Goette A, Kalman J, Kalra L, Kim YH, Lane DA, Lip GYH, Lubitz SA, Márquez MF, Potpara T, Pozzer DL, Ruskin JN, Savelieva I, Teo WS, Tse HF, Verma A, Zhang S, Chung MK. European Heart Rhythm Association (EHRA)/Heart Rhythm Society (HRS)/Asia Pacific Heart Rhythm Society (APHRS)/Latin American Heart Rhythm Society (LAHRS) expert consensus on arrhythmias and cognitive function: what is the best practice? Europace 2019; 20:1399-1421. [PMID: 29562326 DOI: 10.1093/europace/euy046] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 02/22/2018] [Indexed: 01/24/2023] Open
Abstract
Abstract
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Affiliation(s)
- Nikolaos Dagres
- Department of Electrophysiology, Heart Center Leipzig, Strümpellstr. 39, Leipzig, Germany
| | - Tze-Fan Chao
- Taipei Veterans General Hospital, Taipei, Taiwan
| | | | | | - Daniel Benhayon
- Cardiac and Vascular Institute, Memorial Health, Hollywood, FL, USA
| | - Emelia J Benjamin
- Boston University Schools of Medicine and Public Health, Framingham Heart Study, Boston, MA, USA
| | | | - Lin Yee Chen
- Cardiovascular Division, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | | | | | - Angelo de Paola
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Laurent Fauchier
- Service de Cardiologie, Centre Hospitalier Universitaire Trousseau, Université François Rabelais, Tours, France
| | - Andreas Goette
- Department of Cardiology and Intensive Care Medicine, St. Vincenz-Hospital Paderborn, Working Group: Molecular Electrophysiology, University Hospital Magdeburg, Germany
| | - Jonathan Kalman
- University of Melbourne, Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | | | - Young-Hoon Kim
- Korea University Medical Center, Seoul, Republic of Korea
| | - Deirdre A Lane
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK.,Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Gregory Y H Lip
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK.,Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | | | - Manlio F Márquez
- Departmen of Electrocardiography, Instituto Nacional De Cardiologia, Mexico City, Mexico
| | - Tatjana Potpara
- School of Medicine, Belgrade University, Belgrade, Serbia.,Cardiology Clinic, Clinical Center of Serbia, Belgrade, Serbia
| | | | | | - Irina Savelieva
- Cardiology Clinical Academic Group, Molecular and Clinical Sciences Research Institute, St. George's University of London, London, UK
| | | | - Hung-Fat Tse
- Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - Atul Verma
- Southlake Regional Health Centre, Ontario, Canada
| | - Shu Zhang
- Beijing Fuwai Hospital, Beijing, People's Republic of China
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21
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Abstract
Since the cryoballoon (CB) was introduced into clinical practice, more than 400,000 patients have undergone a pulmonary vein (PV) isolation with a CB throughout the world. Although the efficacy of the first-generation CB was limited, the recently introduced second-generation CB has achieved a greater uniformity in cooling, which has facilitated a shorter time to PV isolation, shorter procedural times, higher rates of freedom from atrial fibrillation and low rates of PV reconnections. Currently, a single short freeze strategy with a single 28 mm balloon has become the standard technique based on the balance of procedural efficacy and safety. However, enhanced cooling characteristics may also result in a greater potential for collateral damage to non-cardiac structures. Knowledge about the potential complications is essential when performing the procedure. In this article, we describe the important complications that should be noted during a CB procedure, and how to minimise the risk of complications based on our experience.
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Affiliation(s)
- Shinsuke Miyazaki
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, University of Fukui Fukui, Japan
| | - Hiroshi Tada
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, University of Fukui Fukui, Japan
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22
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Michaud GF. Asymptomatic Cerebral Emboli With the PVAC Gold: Worth Another Look? JACC Clin Electrophysiol 2019; 5:327-329. [PMID: 30898235 DOI: 10.1016/j.jacep.2019.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 11/19/2022]
Affiliation(s)
- Gregory F Michaud
- Vanderbilt University Medical Center, Cardiovascular Division, Nashville, Tennessee.
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23
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Incidence and Clinical Significance of Cerebral Embolism During Atrial Fibrillation Ablation With Duty-Cycled Phased-Radiofrequency Versus Cooled-Radiofrequency. JACC Clin Electrophysiol 2019; 5:318-326. [DOI: 10.1016/j.jacep.2018.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/01/2018] [Accepted: 11/08/2018] [Indexed: 11/21/2022]
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24
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Igel DA, Urban JF, Kent JP, Lim B, Venkatachalam KL, Asirvatham SJ, Sigg DC. Effect of Charge Delivery on Thromboembolism During Radiofrequency Ablation in Canines. JACC Clin Electrophysiol 2018; 4:958-966. [PMID: 30025698 DOI: 10.1016/j.jacep.2018.02.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 02/12/2018] [Accepted: 02/22/2018] [Indexed: 11/24/2022]
Abstract
OBJECTIVES This study investigated whether delivering negative charge to catheter tips reduces thromboembolism during catheter ablation. BACKGROUND Radiofrequency (RF) ablation prevents atrial fibrillation that can cause stroke or death. However, ablation itself can cause stroke (2%) or silent ischemia (2% to 41%), possibly via particulate debris that embolizes after coagulum adherence to catheter surfaces. Coagulum formation on RF catheters can be prevented by applying negative charge, but it is unknown if charge reduces peripheral thromboembolism. METHODS Paired (Charge ON vs. OFF) endocardial RF ablations were performed in 9 canines using nonirrigated RF catheters. Continuous negative charge was delivered via -100 μA of DC current applied to ablation catheter electrodes. Intracardiac echocardiography was used to navigate the catheter and to monitor coagulum formation. In a subset of 5 canines, microemboli flowing through polyester tubing between the femoral artery and vein (extracorporeal loop) were monitored with bubble counters and inline filter fabric. After each ablation, catheter-tip coagulum and blood particles deposited on the filters were quantified using photography and imaging software (ImageJ, U.S. National Institutes of Health, Bethesda, Maryland). RESULTS Negative charge significantly decreased the extracorporeal loop median filter area covered by particles (n = 19 pairs) by 10.2 mm2 (p = 0.03), and decreased median filter particles by 349 (p = 0.03). Negative charge also decreased the percentage of the catheter tip surface area covered by coagulum (n = 39 pairs) by 7.2% (p = 0.03). CONCLUSIONS Negative charge delivery to ablation catheter tips during RF ablation can reduce particulate embolization material in an extracorporeal loop, and potentially reduce thromboembolic risk associated with RF ablation.
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Affiliation(s)
| | | | | | - Bernard Lim
- Heart and Vascular Program, Baystate Medical Center, Springfield, Massachusetts
| | - K L Venkatachalam
- Cardiovascular Diseases, Department of Medicine, Mayo Clinic, Jacksonville, Florida
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25
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Miyazaki S, Kajiyama T, Yamao K, Hada M, Yamaguchi M, Nakamura H, Hachiya H, Tada H, Hirao K, Iesaka Y. Silent cerebral events/lesions after second-generation cryoballoon ablation: How can we reduce the risk of silent strokes? Heart Rhythm 2018; 16:41-48. [PMID: 30017816 DOI: 10.1016/j.hrthm.2018.07.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Indexed: 11/18/2022]
Abstract
BACKGROUND Atrial fibrillation (AF) ablation is associated with a substantial risk of silent cerebral events/lesions (SCEs/SCLs) detected on magnetic resonance imaging (MRI). OBJECTIVE The purpose of this study was to investigate the factors associated with the incidence of SCEs/SCLs during second-generation cryoballoon ablation. METHODS Two hundred fifty-six AF patients underwent brain MRI 1 day after pulmonary vein (PV) isolation using second-generation cryoballoons with a single 28-mm balloon and short freeze strategy. RESULTS Overall, 991 of 1016 PVs (97.5%) were successfully isolated by 4.9 ± 1.3 cryoballoon applications per patient, and 25 PVs required touch-up radiofrequency ablation. The total procedure time was 72.7 ± 26.1 minutes. SCEs and SCLs were detected in 68 (26.5%) and 27 (10.5%) patients, respectively. None of the patients reported any neurologic symptoms. Reinsertion of once withdrawn cryoballoons and subsequent applications significantly increased the incidence of SCEs (odds ratio [OR] 2.057; 95% confidential interval [CI] 1.051-4.028; P = .035), and additional left atrial mapping with a multielectrode catheter significantly increased the incidence of SCLs (OR 3.317; 95% CI 1.365-8.056; P = .008). Transient coronary air embolisms were significantly associated with the incidence of SCLs (OR 3.447; 95% CI 1.015-11.702; P = 0.047). On the contrary, an uninterrupted anticoagulation regimen, use of radiofrequency deliveries for transseptal access, cryoballoon air removal with extracorporeal balloon inflations, strength of the MRI magnet, internal electrical cardioversion, and touch-up ablation were not associated with the incidence of SCEs/SCLs. CONCLUSION A significant number of SCE/SCL occurrences was observed after second-generation cryoballoon ablation procedures. These results suggest that air embolisms are the main mechanism of SCEs/SCLs, and the injected air volume might determine the lesion type.
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Affiliation(s)
- Shinsuke Miyazaki
- Department of Cardiovascular medicine, Fukui University, Fukui, Japan.
| | - Takatsugu Kajiyama
- Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki, Japan
| | - Kazuya Yamao
- Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki, Japan
| | - Masahiro Hada
- Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki, Japan
| | - Masao Yamaguchi
- Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki, Japan
| | - Hiroaki Nakamura
- Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki, Japan
| | - Hitoshi Hachiya
- Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki, Japan
| | - Hiroshi Tada
- Department of Cardiovascular medicine, Fukui University, Fukui, Japan
| | - Kenzo Hirao
- Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshito Iesaka
- Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki, Japan
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26
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Fredersdorf S, Fenzl C, Jungbauer C, Weber S, von Bary C, Dietl A, Seegers J, Maier LS, Ücer E. Long-term outcomes and predictors of recurrence after pulmonary vein isolation with multielectrode ablation catheter in patients with atrial fibrillation. J Cardiovasc Med (Hagerstown) 2018; 19:148-154. [DOI: 10.2459/jcm.0000000000000631] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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27
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Dagres N, Chao TF, Fenelon G, Aguinaga L, Benhayon D, Benjamin EJ, Bunch TJ, Chen LY, Chen SA, Darrieux F, de Paola A, Fauchier L, Goette A, Kalman J, Kalra L, Kim YH, Lane DA, Lip GYH, Lubitz SA, Márquez MF, Potpara T, Pozzer DL, Ruskin JN, Savelieva I, Teo WS, Tse HF, Verma A, Zhang S, Chung MK, Bautista-Vargas WF, Chiang CE, Cuesta A, Dan GA, Frankel DS, Guo Y, Hatala R, Lee YS, Murakawa Y, Pellegrini CN, Pinho C, Milan DJ, Morin DP, Nadalin E, Ntaios G, Prabhu MA, Proietti M, Rivard L, Valentino M, Shantsila A. European Heart Rhythm Association (EHRA)/Heart Rhythm Society (HRS)/Asia Pacific Heart Rhythm Society (APHRS)/Latin American Heart Rhythm Society (LAHRS) expert consensus on arrhythmias and cognitive function: What is the best practice? J Arrhythm 2018; 34:99-123. [PMID: 29657586 PMCID: PMC5891416 DOI: 10.1002/joa3.12050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 02/22/2018] [Indexed: 12/18/2022] Open
Affiliation(s)
- Nikolaos Dagres
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany
| | | | | | | | - Daniel Benhayon
- Cardiac and Vascular Institute Memorial Health Hollywood FL USA
| | - Emelia J Benjamin
- Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA
| | | | - Lin Yee Chen
- Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA
| | | | | | - Angelo de Paola
- Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil
| | - Laurent Fauchier
- Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France
| | - Andreas Goette
- Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany
| | - Jonathan Kalman
- Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia
| | | | | | - Deirdre A Lane
- Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark
| | - Gregory Y H Lip
- Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark
| | | | - Manlio F Márquez
- Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico
| | - Tatjana Potpara
- School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia
| | | | | | - Irina Savelieva
- Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK
| | | | - Hung-Fat Tse
- Department of Medicine The University of Hong Kong Hong Kong China
| | - Atul Verma
- Southlake Regional Health Centre Newmarket ON Canada
| | - Shu Zhang
- Beijing Fuwai Hospital Beijing China
| | | | - William-Fernando Bautista-Vargas
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Chern-En Chiang
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Alejandro Cuesta
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Gheorghe-Andrei Dan
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - David S Frankel
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Yutao Guo
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Robert Hatala
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Young Soo Lee
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Yuji Murakawa
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Cara N Pellegrini
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Claudio Pinho
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - David J Milan
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Daniel P Morin
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Elenir Nadalin
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - George Ntaios
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Mukund A Prabhu
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Marco Proietti
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Lena Rivard
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Mariana Valentino
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
| | - Alena Shantsila
- Department of Electrophysiology Heart Center Leipzig Leipzig Germany.,Taipei Veterans General Hospital Taipei Taiwan.,Hospital Israelita Albert Einstein São Paulo Brazil.,Centro Privado de Cardiología Tucumán Argentina.,Cardiac and Vascular Institute Memorial Health Hollywood FL USA.,Boston University Schools of Medicine and Public Health Framingham Heart Study Boston MA USA.,Intermountain Medical Center Murray UT USA.,Cardiovascular Division Department of Medicine University of Minnesota Minneapolis MN USA.,University of Sao Paulo Medical School Sao Paulo Brazil.,Escola Paulista de Medicina Universidade Federal de São Paulo São Paulo Brazil.,Service de Cardiologie Centre Hospitalier Universitaire Trousseau Université François Rabelais Tours France.,Department of Cardiology and Intensive Care Medicine St. Vincenz-Hospital Paderborn Working Group: Molecular Electrophysiology, University Hospital Magdeburg Magdeburg Germany.,Royal Melbourne Hospita lUniversity of Melbourne Melbourne Vic.Australia.,King's College London London UK.,Korea University Medical Center Seoul Korea.,Institute of Cardiovascular Sciences University of Birmingham Birmingham UK.,Aalborg Thrombosis Research Unit Department of Clinical Medicine Aalborg University Aalborg Denmark.,Massachusetts General Hospital Boston MA USA.,Departmen of Electrocardiography Instituto Nacional De Cardiologia Mexico City Mexico.,School of Medicine Belgrade University Belgrade Serbia.,Cardiology Clinic Clinical Center of Serbia Belgrade Serbia.,Instituto de Cardiología de CorrientesCorrientesArgentina.,Cardiology Clinical Academic Group Molecular and Clinical Sciences Research Institute St. George's University of London London UK.,National Heart Centre Singapore City Singapore.,Department of Medicine The University of Hong Kong Hong Kong China.,Southlake Regional Health Centre Newmarket ON Canada.,Beijing Fuwai Hospital Beijing China.,Cleveland Clinic Cleveland OH USA
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European Heart Rhythm Association (EHRA)/Heart Rhythm Society (HRS)/Asia Pacific Heart Rhythm Society (APHRS)/Latin American Heart Rhythm Society (LAHRS) expert consensus on arrhythmias and cognitive function: what is the best practice? Heart Rhythm 2018; 15:e37-e60. [PMID: 29563045 DOI: 10.1016/j.hrthm.2018.03.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Indexed: 12/18/2022]
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Keçe F, Zeppenfeld K, Trines SA. The Impact of Advances in Atrial Fibrillation Ablation Devices on the Incidence and Prevention of Complications. Arrhythm Electrophysiol Rev 2018; 7:169-180. [PMID: 30416730 DOI: 10.15420/aer.2018.7.3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The number of patients with atrial fibrillation currently referred for catheter ablation is increasing. However, the number of trained operators and the capacity of many electrophysiology labs are limited. Accordingly, a steeper learning curve and technical advances for efficient and safe ablation are desirable. During the last decades several catheter-based ablation devices have been developed and adapted to improve not only lesion durability, but also safety profiles, to shorten procedure time and to reduce radiation exposure. The goal of this review is to summarise the reported incidence of complications, considering device-related specific aspects for point-by-point, multi-electrode and balloon-based devices for pulmonary vein isolation. Recent technical and procedural developments aimed at reducing procedural risks and complications rates will be reviewed. In addition, the impact of technical advances on procedural outcome, procedural length and radiation exposure will be discussed.
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Affiliation(s)
- Fehmi Keçe
- Department of Cardiology, Leiden University Medical Centre, University of Leiden Leiden, the Netherlands
| | - Katja Zeppenfeld
- Department of Cardiology, Leiden University Medical Centre, University of Leiden Leiden, the Netherlands
| | - Serge A Trines
- Department of Cardiology, Leiden University Medical Centre, University of Leiden Leiden, the Netherlands
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Siebermair J, Silver M, Wakili R. Pulmonary Vein Isolation with the Multipolar nMARQ™ Ablation Catheter: Efficacy And Safety In Acute And Long-Term Follow Up. J Atr Fibrillation 2017; 9:1600. [PMID: 29250297 DOI: 10.4022/jafib.1600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 04/02/2017] [Accepted: 04/10/2017] [Indexed: 11/10/2022]
Abstract
Pulmonary vein isolation (PVI) is an established therapy for atrial fibrillation (AF). One challenge in the catheter-based treatment of this arrhythmia is to develop an effective and safe ablation approach to achieve durable and consistent lesions around the PVs. The multipolar irrigated radiofrequency (RF) ablation catheter nMARQTM was designed as a single-shot device with the aim to achieve these goals. This article reviews the current literature with respect to acute- and long- term success rates after PVI with this circular mapping and ablation device. Furthermore, since this device recently became discredited to potential lethal complications, we will also focus on the data available on safety issues with this ablation system.
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Affiliation(s)
- Johannes Siebermair
- Department of Medicine I, University Hospital Munich, Ludwig Maximilians University, Munich, Germany.,Department of Medicine I, University Hospital Munich, Ludwig Maximilians University, Munich, Germany
| | - Michelle Silver
- Comprehensive Arrhythmia Research & Management (CARMA) Center, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Reza Wakili
- Deutsches Zentrum für Herz-Kreislauferkrankungen (DZHK), partner site Munich Heart Alliance, Munich, Germany.,Deutsches Zentrum für Herz-Kreislauferkrankungen (DZHK), partner site Munich Heart Alliance, Munich, Germany.,Deutsches Zentrum für Herz-Kreislauferkrankungen (DZHK), partner site Munich Heart Alliance, Munich, Germany
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Bunch TJ, May HT, Bair TL, Crandall BG, Cutler MJ, Day JD, Jacobs V, Mallender C, Osborn JS, Weiss JP. Five-year impact of catheter ablation for atrial fibrillation in patients with a prior history of stroke. J Cardiovasc Electrophysiol 2017; 29:221-226. [PMID: 29131434 DOI: 10.1111/jce.13390] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 09/30/2017] [Accepted: 10/11/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND Catheter ablation of atrial fibrillation (AF) is an established therapeutic rhythm approach. Patients with a prior history of a stroke (CVA) represent a unique high-risk population for recurrent thromboembolic events. The role of antiarrhythmic treatment on the natural history of stroke recurrence in these patients is not fully understood. METHODS Three patient groups with a prior CVA and 5 years of follow-up were matched 1:3:3 by propensity score (±0.01): AF ablation patients receiving their first ablation (n = 139), AF patients that did not receive an ablation (n = 416), and CVA patients without clinical AF (n = 416). Prior CVA was determined by medical chart review. Patients were followed for outcomes of recurrent CVA, heart failure, and death. RESULTS The average age of the population was 69 ± 11 years and 51% male. AF ablation patients had higher rates of hypertension and heart failure (P < 0.0001), but diabetes prevalence was similar between the groups (P = 0.5). Note that 5-year risk of CVA (HR = 2.26, P < 0.0001) and death (HR = 2.43, P < 0.0001) were higher in the AF, no ablation group compared those that were ablated. When comparing AF, ablation to no AF patients, there was not a significant difference in 5-year risk of for CVA (HR = 0.82, P = 0.39) and death (HR = 0.92, P = 0.70); however, heart failure risk was increased (HR = 3.08, P = 0.001). CONCLUSION In patients with AF and a prior CVA, patients undergoing ablation have lower rates of recurrent stroke compared to AF patients not ablated. Although the full mechanisms of benefit are unknown, as CVA rates are similar to patients without AF these data are suggestive of a potential altering of the natural history of disease progression.
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Affiliation(s)
- T Jared Bunch
- Intermountain Medical Center Heart Institute, Intermountain Medical Center, Murray, UT, USA.,Department of Internal Medicine, Stanford University, Palo Alto, CA, USA
| | - Heidi T May
- Intermountain Medical Center Heart Institute, Intermountain Medical Center, Murray, UT, USA
| | - Tami L Bair
- Intermountain Medical Center Heart Institute, Intermountain Medical Center, Murray, UT, USA
| | - Brian G Crandall
- Intermountain Medical Center Heart Institute, Intermountain Medical Center, Murray, UT, USA
| | - Michael J Cutler
- Intermountain Medical Center Heart Institute, Intermountain Medical Center, Murray, UT, USA
| | - John D Day
- Intermountain Medical Center Heart Institute, Intermountain Medical Center, Murray, UT, USA
| | - Victoria Jacobs
- Intermountain Medical Center Heart Institute, Intermountain Medical Center, Murray, UT, USA
| | - Charles Mallender
- Intermountain Medical Center Heart Institute, Intermountain Medical Center, Murray, UT, USA
| | - Jeffrey S Osborn
- Intermountain Medical Center Heart Institute, Intermountain Medical Center, Murray, UT, USA
| | - J Peter Weiss
- Intermountain Medical Center Heart Institute, Intermountain Medical Center, Murray, UT, USA
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Miyazaki S, Watanabe T, Kajiyama T, Iwasawa J, Ichijo S, Nakamura H, Taniguchi H, Hirao K, Iesaka Y. Thromboembolic Risks of the Procedural Process in Second-Generation Cryoballoon Ablation Procedures. Circ Arrhythm Electrophysiol 2017; 10:CIRCEP.117.005612. [DOI: 10.1161/circep.117.005612] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 10/03/2017] [Indexed: 11/16/2022]
Abstract
Background
Atrial fibrillation ablation is associated with substantial risks of silent cerebral events (SCEs) or silent cerebral lesions. We investigated which procedural processes during cryoballoon procedures carried a risk.
Methods and Results
Forty paroxysmal atrial fibrillation patients underwent pulmonary vein isolation using second-generation cryoballoons with single 28-mm balloon 3-minute freeze techniques. Microembolic signals (MESs) were monitored by transcranial Doppler throughout all procedures. Brain magnetic resonance imaging was obtained pre- and post-procedure in 34 patients (85.0%). Of 158 pulmonary veins, 152 (96.2%) were isolated using cryoablation, and 6 required touch-up radiofrequency ablation. A mean of 5.0±1.2 cryoballoon applications was applied, and the left atrial dwell time was 76.7±22.4 minutes. The total MES counts/procedures were 522 (426–626). Left atrial access and Flexcath sheath insertion generated 25 (11–44) and 34 (24–53) MESs. Using radiofrequency ablation for transseptal access increased the MES count during transseptal punctures. During cryoapplications, MES counts were greatest during first applications (117 [81–157]), especially after balloon stretch/deflations (43 [21–81]). Pre– and post–pulmonary vein potential mapping with Lasso catheters generated 57 (21–88) and 61 (36–88) MESs. Reinsertion of once withdrawn cryoballoons and subsequent applications produced 205 (156–310) MESs. Touch-up ablation generated 32 (19–62) MESs, whereas electric cardioversion generated no MESs. SCEs and silent cerebral lesions were detected in 11 (32.3%) and 4 (11.7%) patients, respectively. The patients with SCEs were older than those without; however, there were no significant factors associated with SCEs.
Conclusions
A significant number of MESs and SCE/silent cerebral lesion occurrences were observed during second-generation cryoballoon ablation procedures. MESs were recorded during a variety of steps throughout the procedure; however, the majority occurred during phases with a high probability of gaseous emboli.
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Affiliation(s)
- Shinsuke Miyazaki
- From the Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki (S.M., T.W., T.K., J.I., S.I., H.N., H.T., Y.I.); and Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan (K.H.)
| | - Tomonori Watanabe
- From the Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki (S.M., T.W., T.K., J.I., S.I., H.N., H.T., Y.I.); and Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan (K.H.)
| | - Takatsugu Kajiyama
- From the Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki (S.M., T.W., T.K., J.I., S.I., H.N., H.T., Y.I.); and Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan (K.H.)
| | - Jin Iwasawa
- From the Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki (S.M., T.W., T.K., J.I., S.I., H.N., H.T., Y.I.); and Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan (K.H.)
| | - Sadamitsu Ichijo
- From the Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki (S.M., T.W., T.K., J.I., S.I., H.N., H.T., Y.I.); and Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan (K.H.)
| | - Hiroaki Nakamura
- From the Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki (S.M., T.W., T.K., J.I., S.I., H.N., H.T., Y.I.); and Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan (K.H.)
| | - Hiroshi Taniguchi
- From the Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki (S.M., T.W., T.K., J.I., S.I., H.N., H.T., Y.I.); and Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan (K.H.)
| | - Kenzo Hirao
- From the Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki (S.M., T.W., T.K., J.I., S.I., H.N., H.T., Y.I.); and Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan (K.H.)
| | - Yoshito Iesaka
- From the Cardiovascular Center, Tsuchiura Kyodo Hospital, Tsuchiura, Ibaraki (S.M., T.W., T.K., J.I., S.I., H.N., H.T., Y.I.); and Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan (K.H.)
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Clinical outcomes of AF patients treated with the first and second-generation of circular mapping and ablation catheter: insights from a real world multicenter experience. J Interv Card Electrophysiol 2017; 50:245-251. [PMID: 28875448 DOI: 10.1007/s10840-017-0278-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 07/28/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE Complete pulmonary vein isolation (PVI) is the best documented target for catheter ablation, and different technologies have shown comparable outcomes. The multielectrode phased-RF/duty cycled (PhRF/DC) pulmonary vein ablation catheter (PVAC) and its second generation (PVAC-GOLD) have shown promising clinical results in single and multicenter experiences. Our aim is to assess and compare the safety and efficacy in the real clinical practice among two generations of circular PhRF/DC catheters by performing PVI in patients suffering from recurrent atrial fibrillation (AF). METHODS Eighty-four AF patients treated with PVAC and 64 with PVAC-GOLD were prospectively followed in five Italian cardiology centers in the mainframe of the 1STOP-ClinicalService project. RESULTS Fluoroscopic and total procedure time were significantly different in the two groups. In particular, in the PVAC-GOLD group, the mean fluoroscopic time was 22.8 ± 12.7 min vs 31.6 ± 18.9 in the PVAC group (p = 0.002), and the mean total procedure duration was 117.6 ± 36.0 vs 147.4 ± 40.6, in the PVAC-GOLD group and the PVAC group, respectively (p = 0.001). Only two out of 148 patients reported a peri-procedural complication. Over 20.9 ± 12.0 months of follow-up, AF recurrence occurred in 58 patients. Kaplan-Meier freedom from AF recurrence did not differ between the two groups (64.1 ± 10% in the PVAC group vs 68.2 ± 9% in the PVAC-GOLD group at 1 year, p = ns). CONCLUSIONS In our multicenter analysis, AF ablation using two generations of circular PhRF/DC catheters is safe and effective. No difference was observed in terms of safety and efficacy of the AF ablation between the two catheters, with the mean procedural time being shorter in the PVAC-GOLD group.
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Spitzer SG, Leitz P, Langbein A, Karolyi L, Scharfe F, Weinmann T, Rämmler C, Pott C, Mönnig G, Eckardt L. Circumferential pulmonary vein isolation with second-generation multipolar catheter in patients with paroxysmal or persistent atrial fibrillation: Procedural and one-year follow-up results. Int J Cardiol 2017; 241:212-217. [DOI: 10.1016/j.ijcard.2017.04.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 04/10/2017] [Indexed: 10/19/2022]
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von Bary C, Deneke T, Arentz T, Schade A, Lehrmann H, Fredersdorf S, Baldaranov D, Maier L, Schlachetzki F. Online Measurement of Microembolic Signal Burden by Transcranial Doppler during Catheter Ablation for Atrial Fibrillation-Results of a Multicenter Trial. Front Neurol 2017; 8:131. [PMID: 28424659 PMCID: PMC5380664 DOI: 10.3389/fneur.2017.00131] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 03/21/2017] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Left atrial pulmonary vein isolation (PVI) is an accepted treatment option for patients with symptomatic atrial fibrillation (AF). This procedure can be complicated by stroke or silent cerebral embolism. Online measurement of microembolic signals (MESs) by transcranial Doppler (TCD) may be useful for characterizing thromboembolic burden during PVI. In this prospective multicenter trial, we investigated the burden, characteristics, and composition of MES during left atrial catheter ablation using a variety of catheter technologies. MATERIALS AND METHODS PVI was performed in a total of 42 patients using the circular-shaped multielectrode pulmonary vein ablation catheter (PVAC) technology in 23, an irrigated radiofrequency (IRF) in 14, and the cryoballoon (CB) technology in 5 patients. TCD was used to detect the total MES burden and sustained thromboembolic showers (TESs) of >30 s. During TES, the site of ablation within the left atrium was registered. MES composition was classified manually into "solid," "gaseous," or "equivocal" by off-line expert assessment. RESULTS The total MES burden was higher when using IRF compared to CB (2,336 ± 1,654 vs. 593 ± 231; p = 0.007) and showed a tendency toward a higher burden when using IRF compared to PVAC (2,336 ± 1,654 vs. 1,685 ± 2,255; p = 0.08). TES occurred more often when using PVAC compared to IRF (1.5 ± 2 vs. 0.4 ± 1.3; p = 0.04) and most frequently when ablation was performed close to the left superior pulmonary vein (LSPV). Of the MES, 17.004 (23%) were characterized as definitely solid, 13.204 (18%) as clearly gaseous, and 44.366 (59%) as equivocal. DISCUSSION We investigated the burden and characteristics of MES during left atrial catheter ablation for AF. All ablation techniques applied in this study generated a relevant number of MES. There was a significant difference in total MES burden using IRF compared to CB and a tendency toward a higher burden using IRF compared to PVAC. The highest TES burden was found in the PVAC group, particularly during ablation close to the LSPV. The composition of thromboembolic particles was balanced. The impact of MES, TES, and composition of thromboembolic particles on neurological outcome needs to be evaluated further. (Clinical Trial Registration: Deutsches Register Klinischer Studien, https://drks-neu.uniklinik-freiburg.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00003465. DRKS00003465.).
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Affiliation(s)
- Christian von Bary
- Department of Cardiology, Rotkreuzklinikum München, Munich, Germany.,Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Thomas Deneke
- Department of Electrophysiology, Heart Center Bad Neustadt, Bad Neustadt, Germany
| | - Thomas Arentz
- Department of Cardiology and Angiology, Heart Center Bad Krozingen, Bad Krozingen, Germany
| | - Anja Schade
- Department of Electrophysiology, Heart Center Bad Neustadt, Bad Neustadt, Germany
| | - Heiko Lehrmann
- Department of Cardiology and Angiology, Heart Center Bad Krozingen, Bad Krozingen, Germany
| | - Sabine Fredersdorf
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Dobri Baldaranov
- Department of Neurology, University Hospital Regensburg, Regensburg, Germany
| | - Lars Maier
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Felix Schlachetzki
- Department of Neurology, University Hospital Regensburg, Regensburg, Germany
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Gal P, Buist TJ, Smit JJJ, Adiyaman A, Ramdat Misier AR, Delnoy PPHM, Elvan A. Effective contact and outcome after pulmonary vein isolation in novel circular multi-electrode atrial fibrillation ablation. Neth Heart J 2016; 25:16-23. [PMID: 27752967 PMCID: PMC5179364 DOI: 10.1007/s12471-016-0907-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Introduction Pulmonary vein (PV) reconnection is frequently the cause of recurrence of atrial fibrillation (AF) after ablation. The second-generation gold multi-electrode ablation (Gold-MEA) catheter has a new design possibly resulting in improved lesion formation compared with its predecessor. We aimed to determine the association between effective radiofrequency applications with the Gold-MEA catheter and outcome after AF ablation. Methods 50 consecutive patients with paroxysmal AF underwent Gold-MEA (PVAC GOLDTM, Medtronic Inc.) ablation. The Gold-MEA catheter was navigated to the PV ostium by fluoroscopy. Duty-cycled radiofrequency ablations were performed at all PV ostia. Lesions were considered transmural when electrode temperature was >50 °C and power >3 W for >30 seconds. After the ablation procedure, patients visited the outpatient clinic at 3‑month intervals including 24-hour Holter ECGs. Results Mean age was 56 years. All PVs were acutely isolated with the Gold-MEA catheter. Procedure time was 111 ± 22 minutes, ablation time was 24 ± 6.7 minutes and fluoroscopy time was 20 ± 8.1 minutes. No procedure-related complications were observed. One year after ablation, 60 % of patients were still free of arrhythmia recurrences after a single PV isolation attempt. The number of transmural lesions was associated with arrhythmia-free survival: 25.0 % in <72 transmural lesions, 64.3 % in 72–108 transmural lesions and 71.4 % in >108 transmural lesions (p = 0.029). Conclusion PV isolation can be performed successfully with the Gold-MEA catheter, with a favourable safety profile. Transmurality of lesions was associated with ablation success and may improve AF ablation success.
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Affiliation(s)
- P Gal
- Department of Cardiology, Isala Klinieken, Zwolle, the Netherlands
| | - T J Buist
- Department of Cardiology, Isala Klinieken, Zwolle, the Netherlands
| | - J J J Smit
- Department of Cardiology, Isala Klinieken, Zwolle, the Netherlands
| | - A Adiyaman
- Department of Cardiology, Isala Klinieken, Zwolle, the Netherlands
| | | | - P P H M Delnoy
- Department of Cardiology, Isala Klinieken, Zwolle, the Netherlands
| | - A Elvan
- Department of Cardiology, Isala Klinieken, Zwolle, the Netherlands.
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Hocini M, Condie C, Stewart MT, Kirchhof N, Foell JD. Predictability of lesion durability for AF ablation using phased radiofrequency: Power, temperature, and duration impact creation of transmural lesions. Heart Rhythm 2016; 13:1521-6. [DOI: 10.1016/j.hrthm.2016.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Indexed: 11/15/2022]
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Kabunga P, Phan K, Ha H, Sy RW. Meta-Analysis of Contemporary Atrial Fibrillation Ablation Strategies. JACC Clin Electrophysiol 2016; 2:377-390. [DOI: 10.1016/j.jacep.2015.12.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 12/01/2015] [Accepted: 12/27/2015] [Indexed: 12/21/2022]
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40
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Haines DE. Heparin Bolus or Infusion. JACC Clin Electrophysiol 2016; 2:327-329. [DOI: 10.1016/j.jacep.2016.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 02/05/2016] [Indexed: 10/22/2022]
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First results and follow-up of a second-generation circular mapping and ablation catheter. J Interv Card Electrophysiol 2016; 47:213-219. [PMID: 27230934 DOI: 10.1007/s10840-016-0140-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 04/27/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE Pulmonary vein isolation with radiofrequency energy is widely used as a strategy for catheter ablation of atrial fibrillation (AF). Anatomically designed catheters have been developed to increase the efficiency of AF ablation procedures. The second-generation circular ablation catheter, PVAC GOLD, was re-designed to improve energy delivery and mitigate emboli. We investigated the procedural efficiency, biophysics, and chronic efficacy of PVAC GOLD in patients with AF. METHODS We consecutively enrolled 40 patients (60 ± 11 years) with highly symptomatic, drug refractory AF. The first 20 patients were treated with the first-generation PVAC. The subsequent 20 patients were treated with the second-generation PVAC GOLD catheter. All patients were followed up at 3, 6, and 12 months. RESULTS All 164 targeted PVs were successfully isolated. Ablations performed with PVAC GOLD showed a significant reduction in total number of ablations needed for PVI, fluoroscopy, and procedure times compared to PVAC (34.7 ± 7.0 vs. 27.0 ± 6.5; p = 0.009), fluoroscopy (29.5 ± 9.5 vs. 23.4 ± 7.0; p = 0.026), and procedure time (93.8 ± 18.9 vs. 83.1 ± 10.6; p = 0.033). PVAC GOLD showed improved biophysics including a reduction of low power ablations and an increase in mean effective energy delivery. At 12 months follow-up, AF recurrence rates were comparable in the two groups (35 vs. 30 %; p = 0.735). There were no adverse events. CONCLUSIONS The redesigned PVAC GOLD catheter demonstrates a reduction in radiofrequency ablation and procedure time and improved biophysics while maintaining chronic efficacy compared to the first-generation PVAC.
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Verma A. Multipolar ablation for atrial fibrillation: are we going in circles? Europace 2016; 18:631-2. [PMID: 27001037 DOI: 10.1093/europace/euw004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Atul Verma
- Southlake Regional Health Centre, 602-581 Davis Drive, Newmarket, ON, Canada L3Y 2P6
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Forleo GB, Della Rocca DG, Lavalle C, Mantica M, Papavasileiou LP, Ribatti V, Panattoni G, Santini L, Natale A, Biase LD. A Patient With Asymptomatic Cerebral Lesions During AF Ablation: How Much Should We Worry? J Atr Fibrillation 2016; 8:1323. [PMID: 27909472 PMCID: PMC5089485 DOI: 10.4022/jafib.1323] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 01/09/2023]
Abstract
Silent brain lesions due to thrombogenicity of the procedure represent recognized side effects of atrial fibrillation (AF) catheter ablation. Embolic risk is higher if anticoagulation is inadequate and recent studies suggest that uninterrupted anticoagulation, ACT levels above 300 seconds and administration of a pre-transeptal bolus of heparin might significantly reduce the incidence of silent cerebral ischemia (SCI) to 2%. Asymptomatic new lesions during AF ablation should suggest worse neuropsychological outcome as a result of the association between silent cerebral infarcts and increased long-term risk of dementia in non-ablated AF patients. However, the available data are discordant. To date, no study has definitely linked post-operative asymptomatic cerebral events to a decline in neuropsychological performance. Larger volumes of cerebral lesions have been associated with cognitive decline but are uncommon findings acutely in post-ablation AF patients. Of note, the majority of acute lesions have a small or medium size and often regress at a medium-term follow-up. Successful AF ablation has the potential to reduce the risk of larger SCI that may be considered as part of the natural course of AF. Although the long-term implications of SCI remain unclear, it is conceivable that strategies to reduce the risk of SCI may be beneficial.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Andrea Natale
- Policlinico Tor Vergata, Rome, Italy; Policlinico Tor Vergata, Rome, Italy
| | - Luigi Di Biase
- Policlinico Tor Vergata, Rome, Italy; Policlinico Tor Vergata, Rome, Italy
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De Greef Y, Dekker L, Boersma L, Murray S, Wieczorek M, Spitzer SG, Davidson N, Furniss S, Hocini M, Geller JC, Csanádi Z. Low rate of asymptomatic cerebral embolism and improved procedural efficiency with the novel pulmonary vein ablation catheter GOLD: results of the PRECISION GOLD trial. Europace 2016; 18:687-95. [PMID: 26826134 PMCID: PMC4880114 DOI: 10.1093/europace/euv385] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 10/25/2015] [Indexed: 01/05/2023] Open
Abstract
Aims This prospective, multicentre study (PRECISION GOLD) evaluated the incidence of asymptomatic cerebral embolism (ACE) after pulmonary vein isolation (PVI) using a new gold multi-electrode radiofrequency (RF) ablation catheter, pulmonary vein ablation catheter (PVAC) GOLD. Also, procedural efficiency of PVAC GOLD was compared with ERACE. The ERACE study demonstrated that a low incidence of ACE can be achieved with a platinum multi-electrode RF catheter (PVAC) combined with procedural manoeuvres to reduce emboli. Methods and results A total of 51 patients with paroxysmal atrial fibrillation (AF) (age 57 ± 9 years, CHA2DS2-VASc score 1.4 ± 1.4) underwent AF ablation with PVAC GOLD. Continuous oral anticoagulation using vitamin K antagonists, submerged catheter introduction, and heparinization (ACT ≥ 350 s prior to ablation) were applied. Cerebral magnetic resonance imaging (MRI) scans were performed within 48 h before and 16–72 h post-ablation. Cognitive function assessed by the Mini-Mental State Exam at baseline and 30 days post-ablation. New post-procedural ACE occurred in only 1 of 48 patients (2.1%) and was not detectable on MRI after 30 days. The average number of RF applications per patient to achieve PVI was lower in PRECISION GOLD (20.3 ± 10.0) than in ERACE (28.8 ± 16.1; P = 0.001). Further, PVAC GOLD ablations resulted in significantly fewer low-power (<3 W) ablations (15 vs. 23%, 5 vs. 10% and 2 vs. 7% in 4:1, 2:1, and 1:1 bipolar:unipolar energy modes, respectively). Mini-Mental State Exam was unchanged in all patients. Conclusion Atrial fibrillation ablation with PVAC GOLD in combination with established embolic lowering manoeuvres results in a low incidence of ACE. Pulmonary vein ablation catheter GOLD demonstrates improved biophysical efficiency compared with platinum PVAC. Trial registration ClinicalTrials.gov NCT01767558.
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Affiliation(s)
- Yves De Greef
- ZNA Middelheim, Lindendreef 1, 2020 Antwerp, Belgium
| | - Lukas Dekker
- Catharina Ziekenhuis, Eindhoven, The Netherlands
| | | | | | - Marcus Wieczorek
- St Agnes Hospital, Witten/Herdecke University, School of Medicine, Bocholt, Germany
| | | | - Neil Davidson
- University Hospital of South Manchester, Manchester, UK
| | | | - Mélèze Hocini
- Hôpital Cardiologique du Haut-Lévêque, Bordeaux, France
| | | | - Zoltan Csanádi
- Institute of Cardiology, University of Debrecen, Debrecen, Hungary
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Mercader MA. Mitigating the Risk of Microemboli Formation During Irrigated Radiofrequency Catheter Ablation. Circ Arrhythm Electrophysiol 2016; 9:e003805. [PMID: 26763229 DOI: 10.1161/circep.115.003805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Marco A Mercader
- From the Division of Cardiology, Department of Medicine, George Washington University, Washington, DC.
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Sonesson B, Dias N, Resch T, Kristmundsson T, Holst J. Laser Generated In situ Fenestrations in Dacron Stent Grafts. Eur J Vasc Endovasc Surg 2016; 51:499-503. [PMID: 26739804 DOI: 10.1016/j.ejvs.2015.11.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 11/26/2015] [Indexed: 11/27/2022]
Abstract
OBJECTIVE/BACKGROUND To evaluate if the creation of laser generated in situ fenestrations in polyester/Dacron stent grafts causes embolization. METHODS In seven pigs, Dacron stent grafts were implanted from the infrarenal aorta to the right iliac artery. Prior to placing the stent graft, a carotid artery protection filter, with a pore size of 70-200 μm, was placed in the proximal left common iliac artery. An excimer laser catheter was then advanced antegradely through the stent graft and positioned at the level of origin of the left iliac artery. A fenestration was then created with the laser probe. The carotid filter was retrieved and inspected macroscopically with magnifying glasses, for emboli and clot. RESULTS Seven pigs with a median weight of 90 kg (range 78-98 kg) were tested. The median operating time was 170 minutes. All laser fenestrations were successfully completed. No emboli or clot could be detected in the protection filters. CONCLUSION Creation of laser generated, in situ fenestrations do not produce macroscopically visible emboli/clot. This might indicate safe usage of laser created fenestrations for endovascular arch repair and left subclavian artery revascularization.
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Affiliation(s)
- B Sonesson
- Vascular Center Malmö-Lund, Skåne University Hospital, 205 03 Malmö, Sweden.
| | - N Dias
- Vascular Center Malmö-Lund, Skåne University Hospital, 205 03 Malmö, Sweden
| | - T Resch
- Vascular Center Malmö-Lund, Skåne University Hospital, 205 03 Malmö, Sweden
| | - T Kristmundsson
- Vascular Center Malmö-Lund, Skåne University Hospital, 205 03 Malmö, Sweden
| | - J Holst
- Vascular Center Malmö-Lund, Skåne University Hospital, 205 03 Malmö, Sweden
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Takami M, Lehmann HI, Parker KD, Welker KM, Johnson SB, Packer DL. Effect of Left Atrial Ablation Process and Strategy on Microemboli Formation During Irrigated Radiofrequency Catheter Ablation in an In Vivo Model. Circ Arrhythm Electrophysiol 2016; 9:e003226. [DOI: 10.1161/circep.115.003226] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Mitsuru Takami
- From the Translational Interventional Electrophysiology Laboratory (M.T., H.I.L., K.D.P., S.B.J., D.L.P.) and Department of Radiology (K.M.W.), Mayo Clinic/St. Marys Campus, Rochester, MN
| | - H. Immo Lehmann
- From the Translational Interventional Electrophysiology Laboratory (M.T., H.I.L., K.D.P., S.B.J., D.L.P.) and Department of Radiology (K.M.W.), Mayo Clinic/St. Marys Campus, Rochester, MN
| | - Kay D. Parker
- From the Translational Interventional Electrophysiology Laboratory (M.T., H.I.L., K.D.P., S.B.J., D.L.P.) and Department of Radiology (K.M.W.), Mayo Clinic/St. Marys Campus, Rochester, MN
| | - Kirk M. Welker
- From the Translational Interventional Electrophysiology Laboratory (M.T., H.I.L., K.D.P., S.B.J., D.L.P.) and Department of Radiology (K.M.W.), Mayo Clinic/St. Marys Campus, Rochester, MN
| | - Susan B. Johnson
- From the Translational Interventional Electrophysiology Laboratory (M.T., H.I.L., K.D.P., S.B.J., D.L.P.) and Department of Radiology (K.M.W.), Mayo Clinic/St. Marys Campus, Rochester, MN
| | - Douglas L. Packer
- From the Translational Interventional Electrophysiology Laboratory (M.T., H.I.L., K.D.P., S.B.J., D.L.P.) and Department of Radiology (K.M.W.), Mayo Clinic/St. Marys Campus, Rochester, MN
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Alipour A, Swaans MJ, van Dijk VF, Balt JC, Post MC, Bosschaert MA, Rensing BJ, Reddy VY, Boersma LV. Ablation for Atrial Fibrillation Combined With Left Atrial Appendage Closure. JACC Clin Electrophysiol 2015; 1:486-495. [DOI: 10.1016/j.jacep.2015.07.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 07/08/2015] [Accepted: 07/16/2015] [Indexed: 10/22/2022]
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HAINES DAVIDE, STRUNK AARONR, NOVICHENOK ALEX, KIRCHHOF NICOLE, STEWART MARK. The Biophysics of Passive Convective Cooling During Catheter Ablation with Gold versus Platinum Electrodes and Multielectrode Phased Radiofrequency Energy Delivery. J Cardiovasc Electrophysiol 2015; 26:1257-1261. [DOI: 10.1111/jce.12752] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 06/08/2015] [Accepted: 06/23/2015] [Indexed: 11/28/2022]
Affiliation(s)
- DAVID E. HAINES
- Department of Cardiovascular Medicine; Beaumont Health System and Oakland University William Beaumont School of Medicine; Royal Oak Michigan USA
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Mönnig G, Eckardt L. Multielectrode Pulmonary Vein Ablation Catheter (PVAC(®)): current data on results and risks. Herzschrittmacherther Elektrophysiol 2015; 25:236-40. [PMID: 25070931 DOI: 10.1007/s00399-014-0330-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Electrical isolation of pulmonary veins is the cornerstone of catheter ablation for patients with symptomatic atrial fibrillation. However, uncertainty surrounds the choice of energy source in pulmonary vein isolation (PVI). Various alternative techniques such as the Pulmonary Vein Ablation Catheter (PVAC(®), Medtronic Inc., Minneapolis, MN, USA) have been developed to facilitate PVI. This over-the-wire multielectrode catheter is delivering duty-cycled bipolar and unipolar radiofrequency (RF) energy at relatively low power.PVI with this "one-shot" PVACatheter can shorten the procedure duration and lower fluoroscopy time compared to irrigated RF. It enables mapping and ablation with the same array, but fails to show signals during RF energy delivery. The effectiveness of PVAC is comparable to other technologies in randomized studies. The overall complication rate of PVAC PVI is comparable to irrigated RF and possibly slightly higher for cryoballoon PVI. Special attention has to be paid to an effective anticoagulation throughout the ablation procedure, avoidance of embolic events and pulmonary venous stenosis.The novel catheter design of the PVAC Gold(®) array may improve safety by reducing embolic events through avoidance of electrode 1-to-10 interaction and by better tissue contact due to the 20° forward tilt. Although clinical data with this new array are lacking so far, the PVAC system has been shown to be a promising tool for PVI. However, prospective studies especially with the novel array are required to determine its true role for catheter ablation of atrial fibrillation in the future.
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Affiliation(s)
- Gerold Mönnig
- Division of Electrophysiology, Department of Cardiovascular Medicine, University of Muenster, Muenster, Germany,
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