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Muston BT, Bilbrough J, Eranki A, Wilson-Smith C, Wilson-Smith AR. Mid-to-long-term recurrence of atrial fibrillation in surgical treatment vs. catheter ablation: a meta-analysis using aggregated survival data. Ann Cardiothorac Surg 2024; 13:18-30. [PMID: 38380137 PMCID: PMC10875208 DOI: 10.21037/acs-2023-afm-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/14/2023] [Indexed: 02/22/2024]
Abstract
Background Atrial fibrillation (AF) is the most common cardiac arrhythmia and leading cardiac cause of stroke. Catheter and surgical ablation are two techniques used currently to resolve prolonged disease by limiting the excitatory potential of specific areas of myocardium in the atria of the heart. The aim of this systematic review and meta-analysis was to provide a graphical amalgamation of mid-to-long-term rhythm outcomes following transcatheter and surgical intervention, whether primary or concomitant ablation. Methods Three electronic databases were selected to complete the initial literature search from inception of records until April 2023. Primary outcomes were freedom from AF at 12 months, as well as long term time-to-event recurrence data. These data were calculated using aggregated Kaplan-Meier curves according to established methods. The secondary outcome was procedural time for each ablation method. Results Following independent screening, 36 studies were included for analysis. A total of 6,700 patients were followed, of whom 4,863 (72.6%) were male. Freedom from AF recurrence at 1, 3 and 5 years for the surgical cohort was 71.7%, 57.6% and 47.6%, respectively. Comparatively, the recurrence rates of the catheter ablation cohort at 1, 3 and 5 years were 71.5%, 56.5% and 50.3%, respectively. Conclusions Despite potentially more complex diseases, surgical ablation patients have non-inferior long-term AF recurrence when compared to those undergoing catheter ablation. Recurrence at 12 months as well as procedural time are also similar between these groups. Ultimately, both ablation methods were able to prevent recurrence of AF in approximately 50% of patients at five years following the procedure.
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Affiliation(s)
- Benjamin T. Muston
- The Collaborative Research Group (CORE), Sydney, Australia
- Faculty of Medicine and Health, The University of New South Wales, Sydney, Australia
| | - James Bilbrough
- Faculty of Medicine and Health, The University of New South Wales, Sydney, Australia
| | - Aditya Eranki
- The Collaborative Research Group (CORE), Sydney, Australia
- Department of Cardiothoracic Surgery, Royal Prince Alfred Hospital, Sydney, Australia
| | - Christian Wilson-Smith
- The Collaborative Research Group (CORE), Sydney, Australia
- Faculty of Medicine and Health, The University of New South Wales, Sydney, Australia
| | - Ashley R. Wilson-Smith
- The Collaborative Research Group (CORE), Sydney, Australia
- Department of Cardiothoracic Surgery, Royal Prince Alfred Hospital, Sydney, Australia
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Bifulco SF, Macheret F, Scott GD, Akoum N, Boyle PM. Explainable Machine Learning to Predict Anchored Reentry Substrate Created by Persistent Atrial Fibrillation Ablation in Computational Models. J Am Heart Assoc 2023; 12:e030500. [PMID: 37581387 PMCID: PMC10492949 DOI: 10.1161/jaha.123.030500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 07/21/2023] [Indexed: 08/16/2023]
Abstract
Background Postablation arrhythmia recurrence occurs in ~40% of patients with persistent atrial fibrillation. Fibrotic remodeling exacerbates arrhythmic activity in persistent atrial fibrillation and can play a key role in reentrant arrhythmia, but emergent interaction between nonconductive ablation-induced scar and native fibrosis (ie, residual fibrosis) is poorly understood. Methods and Results We conducted computational simulations in pre- and postablation left atrial models reconstructed from late gadolinium enhanced magnetic resonance imaging scans to test the hypothesis that ablation in patients with persistent atrial fibrillation creates new substrate conducive to recurrent arrhythmia mediated by anchored reentry. We trained a random forest machine learning classifier to accurately pinpoint specific nonconductive tissue regions (ie, areas of ablation-delivered scar or vein/valve boundaries) with the capacity to serve as substrate for anchored reentry-driven recurrent arrhythmia (area under the curve: 0.91±0.03). Our analysis suggests there is a distinctive nonconductive tissue pattern prone to serving as arrhythmogenic substrate in postablation models, defined by a specific size and proximity to residual fibrosis. Conclusions Overall, this suggests persistent atrial fibrillation ablation transforms substrate that favors functional reentry (ie, rotors meandering in excitable tissue) into an arrhythmogenic milieu more conducive to anchored reentry. Our work also indicates that explainable machine learning and computational simulations can be combined to effectively probe mechanisms of recurrent arrhythmia.
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Affiliation(s)
| | - Fima Macheret
- Division of CardiologyUniversity of WashingtonSeattleWAUSA
| | - Griffin D. Scott
- Department of BioengineeringUniversity of WashingtonSeattleWAUSA
| | - Nazem Akoum
- Department of BioengineeringUniversity of WashingtonSeattleWAUSA
- Division of CardiologyUniversity of WashingtonSeattleWAUSA
| | - Patrick M. Boyle
- Department of BioengineeringUniversity of WashingtonSeattleWAUSA
- Institute for Stem Cell and Regenerative MedicineUniversity of WashingtonSeattleWAUSA
- Center for Cardiovascular BiologyUniversity of WashingtonSeattleWAUSA
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3
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Tseng AS, Patel HP, Kumar A, Jani C, Patel K, Jaswaney R, Thakkar S, Kowlgi NG, Dani SS, Arora S, Mulpuru SK, Madhavan M, Killu AM, Cha YM, DeSimone CV, Deshmukh A. One-year outcomes of catheter ablation for atrial fibrillation in young patients. BMC Cardiovasc Disord 2023; 23:83. [PMID: 36774486 PMCID: PMC9921413 DOI: 10.1186/s12872-022-03017-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 12/16/2022] [Indexed: 02/13/2023] Open
Abstract
BACKGROUND Atrial fibrillation (AF) is relatively less frequent in younger patients (age < 50). Recently, studies have suggested that early restoration of sinus rhythm may lead to improved outcomes compared with rate control, however the efficacy of catheter ablation for AF in young is scarce. METHODS We included all hospitalized patients between 18 and 50 years with a diagnosis of AF from the Nationwide Readmission Database 2016-2017 from the Healthcare Cost and Utilization Project. Demographic and comorbidity data were collected and analyzed. Outcomes assessed included one-year AF readmission rates, all-cause readmission, ischemic stroke, and all-cause mortality. Subgroup analyses were performed for all demographic and comorbidity variables. RESULTS Overall, 52,598 patients (medium age 44, interquartile range 38-48, female 25.7%) were included in the study, including 2,146 (4.0%) who underwent catheter ablation for AF. Patients who underwent catheter ablation had a significantly lower rate of readmission for AF or any cause at one year (adjusted hazard ratios (HR) of 0.52 [95% confidence interval (CI): 0.43-0.63] and HR of 0.81 [95% CI: 0.72-0.89], respectively). There was no difference in 1-year readmission for stroke or all-cause mortality between the two groups. Subgroup analyses showed a consistent reduction in the risk of AF readmission among major demographic and comorbidity subgroups. CONCLUSION Catheter ablation in young patients with AF was associated with a reduction in 1-year AF related and all-cause readmissions. These data merit further prospective investigation for validation, through dedicated registries and multicenter collaborations to include young AF from diverse population.
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Affiliation(s)
- Andrew S. Tseng
- grid.66875.3a0000 0004 0459 167XDepartment of Cardiovascular Diseases, Mayo Clinic, Rochester, MN USA
| | - Harsh P. Patel
- grid.280418.70000 0001 0705 8684Department of Cardiovascular Disease, Southern Illinois University School of Medicine, Springfield, IL USA
| | - Ashish Kumar
- grid.239578.20000 0001 0675 4725Department of Internal Medicine, Cleveland Clinic Akron General, Akron, OH USA
| | - Chinmay Jani
- grid.38142.3c000000041936754XDepartment of Internal Medicine, Mount Auburn Hospital, Harvard Medical School, Cambridge, MA USA
| | - Kirtenkumar Patel
- grid.240382.f0000 0001 0490 6107Department of Cardiology, North Shore University Hospital, Manhasset, NY USA
| | - Rahul Jaswaney
- grid.67105.350000 0001 2164 3847Department of Medicine, Case Western Reserve University, Cleveland, OH USA
| | - Samarthkumar Thakkar
- grid.416016.40000 0004 0456 3003Department of Internal Medicine, Rochester General Hospital, Rochester, NY USA
| | - Narayan G. Kowlgi
- grid.66875.3a0000 0004 0459 167XDepartment of Cardiovascular Diseases, Mayo Clinic, Rochester, MN USA
| | - Sourbha S. Dani
- grid.415731.50000 0001 0725 1353Division of Cardiology, Lahey Hospital and Medical Center, Beth Israel Lahey Health, Burlington, MA USA
| | - Shilpkumar Arora
- grid.443867.a0000 0000 9149 4843Department of Cardiology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH USA
| | - Siva K. Mulpuru
- grid.66875.3a0000 0004 0459 167XDepartment of Cardiovascular Diseases, Mayo Clinic, Rochester, MN USA
| | - Malini Madhavan
- grid.66875.3a0000 0004 0459 167XDepartment of Cardiovascular Diseases, Mayo Clinic, Rochester, MN USA
| | - Ammar M. Killu
- grid.66875.3a0000 0004 0459 167XDepartment of Cardiovascular Diseases, Mayo Clinic, Rochester, MN USA
| | - Yong-mei Cha
- grid.66875.3a0000 0004 0459 167XDepartment of Cardiovascular Diseases, Mayo Clinic, Rochester, MN USA
| | - Christopher V. DeSimone
- grid.66875.3a0000 0004 0459 167XDepartment of Cardiovascular Diseases, Mayo Clinic, Rochester, MN USA
| | - Abhishek Deshmukh
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA. .,Mayo Clinic College of Medicine, 200 1St St SW, Rochester, MN, 55905, USA.
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4
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Reynbakh O, Garcia M, Romero J, Patel H, Braunstein ED, Fazzari M, Di Biase L. Ablation of atrial fibrillation beyond pulmonary vein isolation: Do additional ablation lesions impact left atrial function? J Cardiovasc Electrophysiol 2023; 34:327-334. [PMID: 36511480 DOI: 10.1111/jce.15780] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/28/2022] [Accepted: 11/14/2022] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Electrical isolation of pulmonary veins (PVI) is a cornerstone for atrial fibrillation (AF) ablation. The overall effect of AF ablation, and especially lesions beyond PVI, on left atrial (LA) function is currently poorly understood. Our aim was to determine if LA function is different in patients after extensive LA ablation compared to PVI only. We performed non-inferiority analysis of LA function after PVI with additional nonpulmonary vein ablation lesions in LA (PVI+) and PVI alone. METHODS We studied 68 patients consecutive patients who underwent AF ablation and who had complete transthoracic echocardiogram (TTE) within 12 months before AF ablation and 1-12 months after the procedure. Patients were stratified into two groups: PVI only and PVI+. Primary outcome was change in LA reservoir strain (LASr). Noninferiority margin was defined at 6%. RESULTS The PVI only group had a higher proportion of patients with paroxysmal AF (70% vs. 30%). The PVI+ group was observed to have a slightly higher increase in LASr compared to PVI alone (5.0% vs. 4.3%, p < .01 for noninferiority). LASr noninferiority was confirmed when adjusted for age, sex, coronary artery disease, hyperlipidemia, and AF type, rhythm at preprocedure TTE in a multivariable linear regression model, 90% CI (-5.46 to 2.04), p < .01. CONCLUSION LA functional improvement evaluated by LASr was noninferior after PVI with additional LA ablation lesions compared to PVI alone. These findings were confirmed when adjusted for confounding clinical variables, suggesting that more extensive ablation does not negatively affect LA function.
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Affiliation(s)
- Olga Reynbakh
- Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - Mario Garcia
- Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - Jorge Romero
- Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - Hardikkumar Patel
- Department of Medicine, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - Eric D Braunstein
- Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - Melissa Fazzari
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Luigi Di Biase
- Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
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5
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Johner N, Namdar M, C Shah D. Safety, Efficacy and Prognostic Benefit of Atrial Fibrillation Ablation in Heart Failure with Preserved Ejection Fraction. Arrhythm Electrophysiol Rev 2022; 11:e18. [PMID: 36304203 PMCID: PMC9585645 DOI: 10.15420/aer.2022.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 05/23/2022] [Indexed: 11/25/2022] Open
Abstract
Up to 65% of patients with heart failure with preserved ejection fraction (HFpEF) develop AF during the course of the disease. This occurrence is associated with adverse outcomes, including pump failure death. Because AF and HFpEF are mutually reinforcing risk factors, sinus rhythm restoration may represent a disease-modifying intervention. While catheter ablation exhibits acceptable safety and efficacy profiles, no randomised trials have compared AF ablation with medical management in HFpEF. However, catheter ablation has been reported to result in lower natriuretic peptides, lower filling pressures, greater peak cardiac output and improved functional capacity in HFpEF. There is growing evidence that catheter ablation may reduce HFpEF severity, hospitalisation and mortality compared to medical management. Based on indirect evidence, early catheter ablation and minimally extensive atrial injury should be favoured. Hence, individualised ablation strategies stratified by stepwise substrate inducibility provide a logical basis for catheter-based rhythm control in this heterogenous population. Randomised trials are needed for definitive evidence-based guidelines.
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Affiliation(s)
- Nicolas Johner
- Cardiology Division, Geneva University Hospital, Geneva, Switzerland
| | - Mehdi Namdar
- Cardiology Division, Geneva University Hospital, Geneva, Switzerland
| | - Dipen C Shah
- Cardiology Division, Geneva University Hospital, Geneva, Switzerland
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Shchetynska-Marinova T, Kranert M, Baumann S, Liebe V, Grafen A, Gerhards S, Rosenkaimer S, Akin I, Borggrefe M, Hohneck AL. Recurrence of atrial fibrillation after pulmonary vein isolation in dependence of arterial stiffness. Neth Heart J 2021; 30:198-206. [PMID: 34817833 PMCID: PMC8941046 DOI: 10.1007/s12471-021-01644-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/06/2021] [Indexed: 01/19/2023] Open
Abstract
Background Arterial stiffness (AS) has emerged as a strong predictor of cardiovascular (CV) diseases. Although increased AS has been described as a predictor of atrial fibrillation (AF), its role as a risk marker for AF recurrence has not yet been elucidated. Methods Patients with AF who underwent pulmonary vein isolation (PVI) were included in this study. Presence of AS was evaluated by measuring aortic distensibility (AD) of the descending aorta by transoesophageal echocardiography. Results In total, 151 patients (mean ± standard deviation (SD) age 71.9 ± 9.8 years) were enrolled and followed for a median duration of 21 months (interquartile range 15.0–31.0). During follow-up, AF recurred in 94 (62.3%) patients. AF recurrence was seen more frequently in patients with permanent AF (27% vs 46%, p = 0.03) and in those who had undergone prior PVI (9% vs 23%, p = 0.02). AD was significantly reduced in patients with AF recurrence (mean ± SD 2.6 ± 2.3 vs 1.5 ± 0.7 × 10−3 mm Hg−1, p < 0.0001), as well as left atrial volume index (LAVI) (mean ± SD 29 ± 12 vs 44 ± 15 ml/m2, p < 0.0001). Multivariable analysis revealed LAVI (odds ratio (OR) 2.9, 95% confidence interval (CI) 1.2–3.4) and AS (OR 3.6, 95% CI 2.8–4.1) as independent risk factors of AF recurrence. Conclusion Increased AS and left atrial size were independent predictors of AF recurrence after PVI. AD as surrogate marker of AS seemed to reflect the overall CV risk. In addition, AD was significantly correlated with left atrial size, which suggests that increased AS leads to atrial remodelling and thus to AF recurrence. Trial registration German registry for clinical studies (DRKS), DRKS00019007. Supplementary Information The online version of this article (10.1007/s12471-021-01644-w) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- T Shchetynska-Marinova
- First Department of Medicine-Cardiology, University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - M Kranert
- First Department of Medicine-Cardiology, University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.,partner site Mannheim, German Centre for Cardiovascular Research (DZHK), Mannheim, Germany
| | - S Baumann
- First Department of Medicine-Cardiology, University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - V Liebe
- First Department of Medicine-Cardiology, University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - A Grafen
- First Department of Medicine-Cardiology, University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - S Gerhards
- First Department of Medicine-Cardiology, University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - S Rosenkaimer
- First Department of Medicine-Cardiology, University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - I Akin
- First Department of Medicine-Cardiology, University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.,partner site Mannheim, German Centre for Cardiovascular Research (DZHK), Mannheim, Germany
| | - M Borggrefe
- First Department of Medicine-Cardiology, University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.,partner site Mannheim, German Centre for Cardiovascular Research (DZHK), Mannheim, Germany
| | - A L Hohneck
- First Department of Medicine-Cardiology, University Medical Centre Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany. .,partner site Mannheim, German Centre for Cardiovascular Research (DZHK), Mannheim, Germany.
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7
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Roney CH, Child N, Porter B, Sim I, Whitaker J, Clayton RH, Laughner JI, Shuros A, Neuzil P, Williams SE, Razavi RS, O'Neill M, Rinaldi CA, Taggart P, Wright M, Gill JS, Niederer SA. Time-Averaged Wavefront Analysis Demonstrates Preferential Pathways of Atrial Fibrillation, Predicting Pulmonary Vein Isolation Acute Response. Front Physiol 2021; 12:707189. [PMID: 34646149 PMCID: PMC8503618 DOI: 10.3389/fphys.2021.707189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 08/24/2021] [Indexed: 11/13/2022] Open
Abstract
Electrical activation during atrial fibrillation (AF) appears chaotic and disorganised, which impedes characterisation of the underlying substrate and treatment planning. While globally chaotic, there may be local preferential activation pathways that represent potential ablation targets. This study aimed to identify preferential activation pathways during AF and predict the acute ablation response when these are targeted by pulmonary vein isolation (PVI). In patients with persistent AF (n = 14), simultaneous biatrial contact mapping with basket catheters was performed pre-ablation and following each ablation strategy (PVI, roof, and mitral lines). Unipolar wavefront activation directions were averaged over 10 s to identify preferential activation pathways. Clinical cases were classified as responders or non-responders to PVI during the procedure. Clinical data were augmented with a virtual cohort of 100 models. In AF pre-ablation, pathways originated from the pulmonary vein (PV) antra in PVI responders (7/7) but not in PVI non-responders (6/6). We proposed a novel index that measured activation waves from the PV antra into the atrial body. This index was significantly higher in PVI responders than non-responders (clinical: 16.3 vs. 3.7%, p = 0.04; simulated: 21.1 vs. 14.1%, p = 0.02). Overall, this novel technique and proof of concept study demonstrated that preferential activation pathways exist during AF. Targeting patient-specific activation pathways that flowed from the PV antra to the left atrial body using PVI resulted in AF termination during the procedure. These PV activation flow pathways may correspond to the presence of drivers in the PV regions.
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Affiliation(s)
- Caroline H. Roney
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | - Nicholas Child
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | - Bradley Porter
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | - Iain Sim
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | - John Whitaker
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | - Richard H. Clayton
- INSIGNEO Institute for In Silico Medicine and Department of Computer Science, University of Sheffield, Sheffield, United Kingdom
| | | | - Allan Shuros
- Boston Scientific Corp, St. Paul, MN, United States
| | - Petr Neuzil
- Department of Cardiology, Na Holmolce Hospital, Prague, Czechia
| | - Steven E. Williams
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | - Reza S. Razavi
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | - Mark O'Neill
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | | | - Peter Taggart
- Institute of Cardiovascular Science, University College London, London, United Kingdom
| | - Matt Wright
- Department of Cardiology, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Jaswinder S. Gill
- Department of Cardiology, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Steven A. Niederer
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
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Zeljković I, Bulj N, Kordić K, Pavlović N, Radeljić V, Benko I, Zadro Kordić I, Đula K, Kos N, Delić Brkljačić D, Manola Š. Atrial appendages’ mechanics assessed by 3D transoesophageal echocardiography as predictors of atrial fibrillation recurrence after pulmonary vein isolation. IJC HEART & VASCULATURE 2020; 31:100642. [PMID: 33015318 PMCID: PMC7522341 DOI: 10.1016/j.ijcha.2020.100642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 08/05/2020] [Accepted: 09/10/2020] [Indexed: 11/30/2022]
Abstract
Data on atrial appendages' mechanics as predictors of AF recurrence after PVI is scarce. 3D and 2D-TEE have potential to provide additional data on LAA function. Patients with AFR had significantly lower LAA tissue velocity and ostium surface area. RAA tissue velocity and SVC ostium surface area were not correlated to AF recurrence.
Background Although there are numerous studies reflecting predictors of atrial fibrillation (AF) recurrence (AFR) after pulmonary vein isolation (PVI), data on atrial appendages' mechanics is scarce. This study aimed to assess atrial appendages' mechanics by 2-dimensional (2D) and 3-dimenssional (3D) transoesphageal echocardiography (TEE) and to explore its value to predict AFR after PVI. Methods Consecutive patients with paroxysmal AF undergoing first PVIwere analysed. 3D and 2D-TEE with tissue Doppler imaging (TDI) and strain analysis was obtained prior to the PVI, including: left atrial appendage (LAA) TDI and strain analysis, LAA ostium surface area, right atrial appendage’s TDI velocity and superior vena cava (SVC) ostium surface area. The primary end-point was freedom from any documented recurrence of atrial arrhythmia lasting > 30 s. Results This single-centre, prospective study included 74 patients with paroxysmal AF (median age 59 years; 36% female; BMI 27.4 ± 4.1 kg/m2, LA volume index 32 ± 11 mL/m2). After a median follow-up of 14 (IQR 10–22) months, 21 (28%) patients had AFR. In a univariate and multivariate Cox-regression analysis LAA TDI velocity (HR 1.48, 95%CI 1.28–1.62, p < 0.001) and LAA ostium surface area(HR 1.58, 95%CI 1.06–1.81, p = 0.033) both independently predicted AFR after single PVI. RAA TDI velocity and SVC ostium surface area were not correlated to AFR. Conclusion Paroxysmal AF patients with lower LAA TDI tissue velocity and LAA ostium surface area have higher risk of developing AFR after PVI. To our knowledge, this is the first study assessing atrial appendages’ mechanics in predicting AFR after PVI. Clinical trial registration: www.drks.de(Identifier: DRKS00010495)
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Affiliation(s)
- Ivan Zeljković
- Department of Cardiology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
- Corresponding author at: Department of Cardiology, Sestre milosrdnice University Hospital Centre, Vinogradska cesta 29, 10 000 Zagreb, Croatia.
| | - Nikola Bulj
- Department of Cardiology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Krešimir Kordić
- Department of Cardiology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| | - Nikola Pavlović
- Department of Cardiology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| | - Vjekoslav Radeljić
- Department of Cardiology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Ivica Benko
- Department of Cardiology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| | - Ines Zadro Kordić
- Department of Internal Medicine, County Hospital “dr. Ivo Pedišić”, Sisak, Croatia
| | - Kristijan Đula
- Department of Cardiology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| | - Nikola Kos
- Department of Cardiology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| | - Diana Delić Brkljačić
- Department of Cardiology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Šime Manola
- Department of Cardiology, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
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9
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Kotadia ID, Williams SE, O'Neill M. High-power, Short-duration Radiofrequency Ablation for the Treatment of AF. Arrhythm Electrophysiol Rev 2020; 8:265-272. [PMID: 32685157 PMCID: PMC7358956 DOI: 10.15420/aer.2019.09] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
High-power, short-duration (HPSD) ablation for the treatment of AF is emerging as an alternative to ablation using conventional ablation generator settings characterised by lower power and longer duration. Although the reported potential advantages of HPSD ablation include less tissue oedema and collateral tissue damage, a reduction in procedural time and superior ablation lesion formation, clinical studies of HPSD ablation validating these observations are limited. One of the main challenges for HPSD ablation has been the inability to adequately assess temperature and lesion formation in real time. Novel catheter designs may improve the accuracy of intra-ablation temperature recording and correspondingly may improve the safety profile of HPSD ablation. Clinical studies of HPSD ablation are on-going and interpretation of the data from these and other studies will be required to ascertain the clinical value of HPSD ablation.
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Affiliation(s)
| | | | - Mark O'Neill
- Guy's and St Thomas' NHS Foundation Trust, London, UK
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