1
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Bergau L. [Atrial fibrillation and heart failure]. INNERE MEDIZIN (HEIDELBERG, GERMANY) 2024; 65:755-761. [PMID: 39007960 DOI: 10.1007/s00108-024-01743-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/17/2024] [Indexed: 07/16/2024]
Abstract
Atrial fibrillation and heart failure are among the most common cardiovascular diseases and have a significant impact on the mortality and morbidity of affected patients. From a pathophysiological perspective, the two diseases are closely related and often perpetuate each other. Therefore, effective management of atrial fibrillation is now a central component of modern heart failure treatment. Based on current data, sinus rhythm should primarily be permanently maintained in patients with systolic heart failure. Catheter ablation has recently proven to be advantageous over purely pharmacological therapy and is therefore the treatment of choice for many patients with heart failure and atrial fibrillation. In patients with diastolic heart failure (heart failure with preserved ejection fraction [HFpEF]), the effect of catheter ablation is less clear. Data from randomized studies are urgently needed in order to further assess efficacy in this population.
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Affiliation(s)
- Leonard Bergau
- Abteilung für Kardiologie und Pneumologie, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Deutschland.
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2
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Evbayekha E, Antia A, Dixon B, Reiss C, LaRue S. Predictors of mortality and burden of arrhythmias in endstage heart failure. Curr Probl Cardiol 2024; 49:102541. [PMID: 38521289 DOI: 10.1016/j.cpcardiol.2024.102541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Heart failure (HF) is a significant cause of morbidity and mortality in the United States, contributing to approximately 1 in 8 deaths. Individuals with end-stage HF (eHF) experience debilitating symptoms leading to poor quality of life (QoL). METHODS We used the ICD-10 code for eHF (I5084) from the National Inpatient Sample (NIS) (2016-2020) to identify all patients with eHF. We used a multivariable logistic regression model to adjust for confounders and estimate the mortality probability in each arrhythmia cohort. Our primary outcome was in-hospital mortality risk in each group. A p-value of 0.05 was deemed significant. RESULTS There were 22,703 hospitalizations with eHF (mean age 67 years ±16). Men represented 66.5 % (15,091) of the population. In this cohort, 59 % (13,018) were Caucasians, 27.2 % (6,017) were Blacks, 8.7 % (1,924) were Hispanics, and 2.9 % (505) were Asians. Of these individuals, 50.4 % (11,434) had atrial fibrillation (AFIB). The majority of the arrhythmia subgroups had independent associations with mortality, with adjusted odds ratio (aOR) for VFIB 5.8 (4.6-7.1), AFIB 4.3 (3.9-4.5), SVT 1.9 (1.6-2.4), and VT 1.2 (1.1-1.4), p < 0.0001, each. CONCLUSION This analysis revealed that approximately half of the hospitalized population with end-stage heart failure are burdened with atrial fibrillation. Ventricular and atrial fibrillation, supraventricular tachycardia, and ventricular tachycardia each carried an independent mortality risk, with ventricular fibrillation having the highest risk.
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3
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Bulhões E, Antunes VLJ, Mazetto R, Defante MLR, Garcia AC, Guida C. Catheter ablation versus medical therapy for atrial fibrillation in patients with heart failure with preserved ejection fraction: A systematic review and meta-analysis. Heart Rhythm 2024:S1547-5271(24)02385-3. [PMID: 38621498 DOI: 10.1016/j.hrthm.2024.04.058] [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: 03/04/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND The benefit of catheter ablation in patients with atrial fibrillation (AF) for patients with heart failure with preserved ejection fraction (HFpEF) remains uncertain. OBJECTIVE We performed a systematic review and meta-analysis to compare catheter ablation and medical therapy (antiarrhythmics for rhythm or rate control) in patients with AF and HFpEF. METHODS We searched PubMed, Embase, and Cochrane Central Register of Controlled Trials. Outcomes were the composite end points of death or heart failure (HF) hospitalization, all-cause death, cardiovascular death, all-cause rehospitalization, and HF hospitalization. Statistical analysis was performed using the R program (version 4.3.2). Heterogeneity was assessed with I2 statistics. RESULTS We included 20,257 patients from 8 studies. Of those, 3 were derived from RCTs, either through post hoc analysis or subgroup analysis, and 5 were observational studies. The median follow-up ranged from 24.6 to 61.2 months. Compared with medical therapy, catheter ablation was associated with a statistically significant lower risk of death or HF hospitalization (hazard ratio [HR] 0.62; 95% confidence interval [CI] 0.47-0.83; P = .001; I2 = 66%), all-cause death (HR 0.68; 95% CI 0.46-0.99; P = .047; I2 = 61%), cardiovascular death (HR 0.42; 95% CI 0.21-0.84; P = .014; I2 = 22%), and HF hospitalization (HR 0.43; 95% CI 0.23-0.82; P = .011; I2 = 87%). CONCLUSION In this meta-analysis, catheter ablation was associated with a lower risk of all-cause mortality, cardiovascular death, HF hospitalization, and all-cause rehospitalization in comparison to medical therapy in patients with AF and HFpEF.
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Affiliation(s)
- Elísio Bulhões
- Faculty of Higher Superior of the Amazon Reunida, Medicine Department, Redenção, Pará, Brazil.
| | - Vanio L J Antunes
- Federal University of Health Sciences of Porto Alegre, Medicine Department, Porto Alegre, Brazil
| | - Roberto Mazetto
- Amazonas State University, Medicine Department, Manaus, Brazil
| | | | - Anselmo C Garcia
- Goiás Military Police Hospital, Division of Cardiology, Goiás, Brazil
| | - Camila Guida
- Dante Pazzanese Institute of Cardiology, Division of Cardiology, São Paulo, Brazil
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Li XM, Yan WF, Shi K, Shi R, Jiang L, Gao Y, Min CY, Liu XJ, Guo YK, Yang ZG. The worsening effect of paroxysmal atrial fibrillation on left ventricular function and deformation in type 2 diabetes mellitus patients: a 3.0 T cardiovascular magnetic resonance feature tracking study. Cardiovasc Diabetol 2024; 23:90. [PMID: 38448890 PMCID: PMC10916223 DOI: 10.1186/s12933-024-02176-4] [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: 01/18/2024] [Accepted: 02/21/2024] [Indexed: 03/08/2024] Open
Abstract
BACKGROUND Atrial fibrillation (AF) has been linked to an increased risk of cardiovascular death, overall mortality and heart failure in patients with type 2 diabetes mellitus (T2DM). The present study investigated the additive effects of paroxysmal AF on left ventricular (LV) function and deformation in T2DM patients with or without AF using the cardiovascular magnetic resonance feature tracking (CMR-FT) technique. METHODS The present study encompassed 225 T2DM patients differentiated by the presence or absence of paroxysmal AF [T2DM(AF+) and T2DM(AF-), respectively], along with 75 age and sex matched controls, all of whom underwent CMR examination. LV function and global strains, including radial, circumferential and longitudinal peak strain (PS), as well as peak systolic and diastolic strain rates (PSSR and PDSR, respectively), were measured and compared among the groups. Multivariable linear regression analysis was used to examine the factors associated with LV global strains in patients with T2DM. RESULTS The T2DM(AF+) group was the oldest, had the highest LV end‑systolic volume index, lowest LV ejection fraction and estimated glomerular filtration rate compared to the control and T2DM(AF-) groups, and presented a shorter diabetes duration and lower HbA1c than the T2DM(AF-) group. LV PS-radial, PS-longitudinal and PDSR-radial declined successively from controls through the T2DM(AF-) group to the T2DM(AF+) group (all p < 0.001). Compared to the control group, LV PS-circumferential, PSSR-radial and PDSR-circumferential were decreased in the T2DM(AF+) group (all p < 0.001) but preserved in the T2DM(AF-) group. Among all clinical indices, AF was independently associated with worsening LV PS-longitudinal (β = 2.218, p < 0.001), PS-circumferential (β = 3.948, p < 0.001), PS-radial (β = - 8.40, p < 0.001), PSSR-radial and -circumferential (β = - 0.345 and 0.101, p = 0.002 and 0.014, respectively), PDSR-radial and -circumferential (β = 0.359 and - 0.14, p = 0.022 and 0.003, respectively). CONCLUSIONS In patients with T2DM, the presence of paroxysmal AF further exacerbates LV function and deformation. Proactive prevention, regular detection and early intervention of AF could potentially benefit T2DM patients.
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Affiliation(s)
- Xue-Ming Li
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, Sichuan, China
- Laboratory of Cardiovascular Diseases, Regenerative Medicine Research Center, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, Sichuan, China
| | - Wei-Feng Yan
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, Sichuan, China
| | - Ke Shi
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, Sichuan, China
| | - Rui Shi
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, Sichuan, China
| | - Li Jiang
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, Sichuan, China
| | - Yue Gao
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, Sichuan, China
| | - Chen-Yan Min
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, Sichuan, China
| | - Xiao-Jing Liu
- Laboratory of Cardiovascular Diseases, Regenerative Medicine Research Center, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, Sichuan, China
| | - Ying-Kun Guo
- Department of Radiology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, 20# South Renmin Road, Chengdu, Sichuan, China
| | - Zhi-Gang Yang
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, Sichuan, China.
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5
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Bergau L, Sommer P. [Catheter ablation of atrial fibrillation : Evidence and current techniques]. INNERE MEDIZIN (HEIDELBERG, GERMANY) 2024; 65:29-37. [PMID: 38172337 DOI: 10.1007/s00108-023-01636-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/22/2023] [Indexed: 01/05/2024]
Abstract
Atrial fibrillation (AF) is the most frequent cardiac arrhythmia with increasing clinical and healthcare economic relevance. A timely treatment prevents or slows the remodelling process of the atrial and ventricular myocardium initiated by AF, emphasizing its relevance especially in heart failure patients. Catheter ablation for the treatment of AF is safe and effective. The three ablation techniques currently used are comparable in terms of success rates but differ in terms of risk profile and the type of lesion formation.
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Affiliation(s)
- Leonard Bergau
- Abteilung für Kardiologie und Pneumologie, Universitätsmedizin Göttingen, Göttingen, Deutschland
| | - Philipp Sommer
- Klinik für Elektrophysiologie und Rhythmologie, Herz- und Diabeteszentrum Nordrhein-Westfalen, Georgstr. 11, 32545, Bad Oeynhausen, Deutschland.
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Xie Z, Qi B, Wang Z, Li F, Chen C, Li C, Yuan S, Yao S, Zhou J, Ge J. Ablation for atrial fibrillation improves the outcomes in patients with heart failure with preserved ejection fraction. Europace 2023; 26:euad363. [PMID: 38099508 PMCID: PMC10754157 DOI: 10.1093/europace/euad363] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/08/2023] [Indexed: 12/29/2023] Open
Abstract
AIMS Patients with heart failure with preserved ejection fraction (HFpEF) and atrial fibrillation (AF) have worse clinical outcomes than those with sinus rhythm (SR). We aim to investigate whether maintaining SR in patients with HFpEF through a strategy such as AF ablation would improve outcomes. METHODS AND RESULTS This is a cohort study that analysed 1034 patients (median age 69 [63-76] years, 46.2% [478/1034] female) with HFpEF and AF. Of these, 392 patients who underwent first-time AF ablation were assigned to the ablation group, and the remaining 642 patients, who received only medical therapy, were assigned to the no ablation group. The primary endpoint was a composite of all-cause death or rehospitalization for worsening heart failure. After a median follow-up of 39 months, the cumulative incidence of the primary endpoint was significantly lower in the ablation group compared to the no ablation group (adjusted hazard ratio [HR], 0.55 [95% CI, 0.37-0.82], P = 0.003) in the propensity score-matched model. Secondary endpoint analysis showed that the benefit of AF ablation was mainly driven by a reduction in rehospitalization for worsening heart failure (adjusted HR, 0.52 [95% CI, 0.34-0.80], P = 0.003). Patients in the ablation group showed a 33% relative decrease in atrial tachycardia/AF recurrence compared to the no ablation group (adjusted HR, 0.67 [95% CI, 0.54-0.84], P < 0.001). CONCLUSION Among patients with HFpEF and AF, the strategy of AF ablation to maintain SR was associated with a lower risk of the composite outcome of all-cause death or rehospitalization for worsening heart failure.
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Affiliation(s)
- Zhonglei Xie
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Fenglin Road 180, Xuhui District, 200032 Shanghai, China
| | - Baozhen Qi
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Fenglin Road 180, Xuhui District, 200032 Shanghai, China
| | - Zimu Wang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Fenglin Road 180, Xuhui District, 200032 Shanghai, China
| | - Fuhai Li
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chaofeng Chen
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Fenglin Road 180, Xuhui District, 200032 Shanghai, China
| | - Chaofu Li
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Fenglin Road 180, Xuhui District, 200032 Shanghai, China
| | - Shuai Yuan
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Fenglin Road 180, Xuhui District, 200032 Shanghai, China
| | - Shun Yao
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Fenglin Road 180, Xuhui District, 200032 Shanghai, China
| | - Jingmin Zhou
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Fenglin Road 180, Xuhui District, 200032 Shanghai, China
| | - Junbo Ge
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Fenglin Road 180, Xuhui District, 200032 Shanghai, China
- Institutes of Biomedical Sciences, Fudan University, Yixueyuan Road 138, Xuhui District, 200032 Shanghai, China
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7
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Guckel D, Sohns C, Sommer P. [Rhythm and metabolic control]. Herz 2022; 47:410-418. [PMID: 35849125 DOI: 10.1007/s00059-022-05128-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2022] [Indexed: 11/25/2022]
Abstract
Diabetes mellitus and atrial fibrillation show a steady increase in their prevalence. Diabetes mellitus is a relevant risk factor for the development and maintenance of atrial fibrillation, which should not be underestimated. Fluctuations in blood glucose levels occurring in diabetes, inflammatory processes and oxidative stress lead to structural, electromechanical, electrical and autonomic remodelling processes in the myocardium that promote atrial fibrillation. When atrial fibrillation and diabetes mellitus coincide, this is often associated with more pronounced symptoms, lower quality of life, more frequent hospitalization and a higher mortality rate. Can early and consistent euglycemic blood glucose monitoring effectively influence atrial remodelling processes, cardiovascular end points and the occurrence of atrial fibrillation? Are there new and combined drug treatment approaches for diabetes mellitus and atrial fibrillation? What ablation strategy should be adopted for the interventional treatment of atrial fibrillation in patients with diabetes mellitus? This review article attempts to find answers to these questions.
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Affiliation(s)
- Denise Guckel
- Klinik für Elektrophysiologie/Rhythmologie, Herz- und Diabeteszentrum NRW, Universitätsklinik der Ruhr-Universität Bochum, Georgstr. 11, 32545, Bad Oeynhausen, Deutschland.
| | - Christian Sohns
- Klinik für Elektrophysiologie/Rhythmologie, Herz- und Diabeteszentrum NRW, Universitätsklinik der Ruhr-Universität Bochum, Georgstr. 11, 32545, Bad Oeynhausen, Deutschland
| | - Philipp Sommer
- Klinik für Elektrophysiologie/Rhythmologie, Herz- und Diabeteszentrum NRW, Universitätsklinik der Ruhr-Universität Bochum, Georgstr. 11, 32545, Bad Oeynhausen, Deutschland
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8
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Bergau L, Bengel P, Sciacca V, Fink T, Sohns C, Sommer P. Atrial Fibrillation and Heart Failure. J Clin Med 2022; 11:jcm11092510. [PMID: 35566639 PMCID: PMC9103974 DOI: 10.3390/jcm11092510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 02/04/2023] Open
Abstract
Atrial fibrillation (AF) is the most common sustained arrhythmia worldwide and has a strong association with heart failure (HF). It often remains unclear if HF is the cause or consequence of AF due to the complexity of the processes that are involved in both the perpetuation of AF and the development of HF. To date, two therapeutic strategies are accepted as the standard of care in AF patients with heart failure. Rhythm control aims to permanently restore sinus rhythm, whereas a rate-control strategy aims to slow ventricular rate without the termination of AF. In the last 5 years a tremendous number of important studies have been published investigating the optimal therapeutic strategy in HF patients. This review highlights the important studies with respect to the involvement of AF in promoting left-ventricular dysfunction and discusses the optimal strategy in HF patients suffering from AF.
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Affiliation(s)
- Leonard Bergau
- Clinic for Electrophysiology, Herz- und Diabeteszentrum Nordrhein-Westfalen, Ruhr Universität Bochum, 32545 Bad Oeynhausen, Germany; (L.B.); (V.S.); (T.F.); (C.S.)
- Department of Cardiology and Pneumology, Heart Center, University Medical Center, 37075 Goettingen, Germany;
| | - Philipp Bengel
- Department of Cardiology and Pneumology, Heart Center, University Medical Center, 37075 Goettingen, Germany;
| | - Vanessa Sciacca
- Clinic for Electrophysiology, Herz- und Diabeteszentrum Nordrhein-Westfalen, Ruhr Universität Bochum, 32545 Bad Oeynhausen, Germany; (L.B.); (V.S.); (T.F.); (C.S.)
| | - Thomas Fink
- Clinic for Electrophysiology, Herz- und Diabeteszentrum Nordrhein-Westfalen, Ruhr Universität Bochum, 32545 Bad Oeynhausen, Germany; (L.B.); (V.S.); (T.F.); (C.S.)
| | - Christian Sohns
- Clinic for Electrophysiology, Herz- und Diabeteszentrum Nordrhein-Westfalen, Ruhr Universität Bochum, 32545 Bad Oeynhausen, Germany; (L.B.); (V.S.); (T.F.); (C.S.)
| | - Philipp Sommer
- Clinic for Electrophysiology, Herz- und Diabeteszentrum Nordrhein-Westfalen, Ruhr Universität Bochum, 32545 Bad Oeynhausen, Germany; (L.B.); (V.S.); (T.F.); (C.S.)
- Correspondence:
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9
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Zhang S, Lu W, Wei Z, Zhang H. Air Pollution and Cardiac Arrhythmias: From Epidemiological and Clinical Evidences to Cellular Electrophysiological Mechanisms. Front Cardiovasc Med 2021; 8:736151. [PMID: 34778399 PMCID: PMC8581215 DOI: 10.3389/fcvm.2021.736151] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 10/04/2021] [Indexed: 01/08/2023] Open
Abstract
Cardiovascular disease is the leading cause of death worldwide and kills over 17 million people per year. In the recent decade, growing epidemiological evidence links air pollution and cardiac arrhythmias, suggesting a detrimental influence of air pollution on cardiac electrophysiological functionality. However, the proarrhythmic mechanisms underlying the air pollution-induced cardiac arrhythmias are not fully understood. The purpose of this work is to provide recent advances in air pollution-induced arrhythmias with a comprehensive review of the literature on the common air pollutants and arrhythmias. Six common air pollutants of widespread concern are discussed, namely particulate matter, carbon monoxide, hydrogen sulfide, sulfur dioxide, nitrogen dioxide, and ozone. The epidemiological and clinical reports in recent years are reviewed by pollutant type, and the recently identified mechanisms including both the general pathways and the direct influences of air pollutants on the cellular electrophysiology are summarized. Particularly, this review focuses on the impaired ion channel functionality underlying the air pollution-induced arrhythmias. Alterations of ionic currents directly by the air pollutants, as well as the alterations mediated by intracellular signaling or other more general pathways are reviewed in this work. Finally, areas for future research are suggested to address several remaining scientific questions.
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Affiliation(s)
- Shugang Zhang
- Computational Cardiology Group, College of Computer Science and Technology, Ocean University of China, Qingdao, China.,Biological Physics Group, School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - Weigang Lu
- Computational Cardiology Group, College of Computer Science and Technology, Ocean University of China, Qingdao, China.,Biological Physics Group, School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - Zhiqiang Wei
- Computational Cardiology Group, College of Computer Science and Technology, Ocean University of China, Qingdao, China
| | - Henggui Zhang
- Biological Physics Group, School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
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10
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Guckel D, Isgandarova K, Bergau L, Piran M, El Hamriti M, Imnadze G, Braun M, Khalaph M, Fink T, Sciacca V, Nölker G, Lee-Barkey YH, Tschöpe D, Sommer P, Sohns C. The Effect of Diabetes Mellitus on the Recurrence of Atrial Fibrillation after Ablation. J Clin Med 2021; 10:jcm10214863. [PMID: 34768382 PMCID: PMC8584917 DOI: 10.3390/jcm10214863] [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: 09/16/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 11/16/2022] Open
Abstract
Diabetes mellitus (DM) plays a crucial role in the regulation of atrial fibrillation (AF). This study aimed to evaluate the outcome of pulmonary vein isolation (PVI) using a single-shot device in patients with AF and DM. A total of 531 consecutive patients undergoing initial cryoballoon (CB)-guided PVI were evaluated. Two hundred eighty-one patients (53%) suffered from paroxysmal AF (PAF; mean age 51 ± 23.2 years, 26% female), 250 patients (48%) from persistent AF (PERS; 64 ± 10.0 years old, 30% female) and 80 patients (15%) were diagnosed with coincidental DM (68 ± 19.6 years old, 30% female). Follow-up visits were performed at 3, 6 and 12 months including 7-day Holter ECGs. Primary endpoint was the first documented recurrence of atrial tachyarrhythmia. AF recurrence occurred in 26% (140 patients). PAF patients with DM presented with a significantly higher risk for arrhythmia recurrence (Kaplan Meier analysis; Log rank p < 0.001 *). Multivariate analyses found DM to be an independent predictor (IP) for AF recurrence (p = 0.009 *, hazard ratio (HR) 4.363, confidence interval (CI) 1.456–13.074). In PERS, DM was associated with a 43% increase in AF recurrence (p = 0.320, HR 1.427, CI 0.707–2.879). DM has relevant effects on AF recurrence after PVI-only ablation approaches for AF. Major differences were observed in PAF as DM seems to favor the development of individual arrhythmia substrate, which is usually not yet present in PAF. In PERS, DM effects are less pronounced as individual fibrosis has already developed. Thus, personalized paths addressing individual arrhythmia substrates are needed in this specific cohort of patients.
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Affiliation(s)
- Denise Guckel
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
| | - Khuraman Isgandarova
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
| | - Leonard Bergau
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
| | - Misagh Piran
- Institute for Radiology, Nuclear Medicine and Molecular Imaging, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany;
| | - Mustapha El Hamriti
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
| | - Guram Imnadze
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
| | - Martin Braun
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
| | - Moneeb Khalaph
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
| | - Thomas Fink
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
| | - Vanessa Sciacca
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
| | - Georg Nölker
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
- Clinic for Internal Medicine II/Cardiology, Christliches Klinikum Unna Mitte, 59423 Unna, Germany
| | - Young-Hee Lee-Barkey
- Diabetes Center, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (Y.-H.L.-B.); (D.T.)
| | - Diethelm Tschöpe
- Diabetes Center, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (Y.-H.L.-B.); (D.T.)
| | - Philipp Sommer
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
| | - Christian Sohns
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, 32545 Bad Oeynhausen, Germany; (D.G.); (K.I.); (L.B.); (M.E.H.); (G.I.); (M.B.); (M.K.); (T.F.); (V.S.); (G.N.); (P.S.)
- Correspondence:
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11
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El Hajjar AH, Marrouche N. The need to refine selection criteria for catheter ablation in heart failure patients with atrial fibrillation. Europace 2021; 24:527-529. [PMID: 34524414 DOI: 10.1093/europace/euab239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Abdel Hadi El Hajjar
- Tulane University Heart and Vascular Institute, School of Medicine, New Orleans, LA, USA
| | - Nassir Marrouche
- Tulane University Heart and Vascular Institute, School of Medicine, New Orleans, LA, USA
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12
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Sohns C, Marrouche NF. Atrial fibrillation and cardiac fibrosis. Eur Heart J 2021; 41:1123-1131. [PMID: 31713590 DOI: 10.1093/eurheartj/ehz786] [Citation(s) in RCA: 126] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/30/2019] [Accepted: 10/23/2019] [Indexed: 12/25/2022] Open
Abstract
The understanding of atrial fibrillation (AF) evolved from a sole rhythm disturbance towards the complex concept of a cardiomyopathy based on arrhythmia substrates. There is evidence that atrial fibrosis can be visualized using late gadolinium enhancement cardiac magnetic resonance imaging and that it is a powerful predictor for the outcome of AF interventions. However, a strategy of an individual and fibrosis guided management of AF looks promising but results from prospective multicentre trials are pending. This review gives an overview about the relationship between cardiac fibrosis and AF focusing on translational aspects, clinical observations, and fibrosis imaging to emphasize the concept of personalized paths in AF management taking into account the individual amount and distribution of fibrosis.
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Affiliation(s)
- Christian Sohns
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Nassir F Marrouche
- Cardiac Electrophysiology, Tulane University School of Medicine, 1430 Tulane Avenue, Box 8548, New Orleans, LA 70112, USA
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13
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Sohns C, Marrouche NF, Costard‐Jäckle A, Sossalla S, Bergau L, Schramm R, Fuchs U, Omran H, Rubarth K, Dumitrescu D, Konietschke F, Rudolph V, Gummert J, Sommer P, Fox H. Catheter ablation for atrial fibrillation in patients with end-stage heart failure and eligibility for heart transplantation. ESC Heart Fail 2021; 8:1666-1674. [PMID: 33314690 PMCID: PMC8006697 DOI: 10.1002/ehf2.13150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/13/2020] [Accepted: 11/15/2020] [Indexed: 12/19/2022] Open
Abstract
AIMS Timely referrals for transplantation and left ventricular assist device (LVAD) play a key role in favourable outcomes in patients with advanced heart failure (HF). The purpose of the Catheter Ablation for atrial fibrillation in patientS with end-sTage heart faiLure and Eligibility for Heart Transplantation (CASTLE-HTx) trial is to test the hypothesis that atrial fibrillation (AF) ablation has beneficial effects on mortality and morbidity during 'waiting time' for heart transplantation (HTx) or to prolong the time span until LVAD implantation. METHODS AND RESULTS CASTLE-HTx is a randomized evaluation of ablative treatment of AF in patients with severe left ventricular dysfunction who are candidates and eligible for HTx. The primary endpoint is the composite of all-cause mortality, worsening of HF requiring a high urgent transplantation, or LVAD implantation. The secondary study endpoints are all-cause mortality, cardiovascular mortality, cerebrovascular accidents, worsening of HF requiring unplanned hospitalization, AF burden reduction, unplanned hospitalization due to cardiovascular reason, all-cause hospitalization, quality of life, number of delivered implantable cardioverter defibrillator therapies, time to first implantable cardioverter defibrillator therapy, number of device-detected ventricular tachycardia/ventricular fibrillation episodes, left ventricular function, exercise tolerance, and percentage of right ventricular pacing. Ventricular myocardial tissue will be obtained from patients who will undergo LVAD implantation or HTx to assess the effect of catheter ablation on human HF myocardium. CASTLE-HTx will randomize 194 patients over a minimum time period of 2 years. CONCLUSIONS CASTLE-HTx will determine if AF ablation has beneficial effects on mortality in patients with end-stage HF who are eligible for HTx.
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Affiliation(s)
- Christian Sohns
- Clinic for ElectrophysiologyHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
| | - Nassir F. Marrouche
- Tulane Research Innovation for Arrhythmia Discoveries (TRIAD), Heart and Vascular InstituteTulane University School of MedicineNew OrleansLAUSA
| | - Angelika Costard‐Jäckle
- Clinic for Thoracic and Cardiovascular SurgeryHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
- Heart Failure DepartmentHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
| | - Samuel Sossalla
- Department of Internal Medicine II, Cardiology, Pneumology, Intensive CareUniversity Hospital RegensburgRegensburgGermany
| | - Leonard Bergau
- Clinic for ElectrophysiologyHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
| | - Rene Schramm
- Clinic for Thoracic and Cardiovascular SurgeryHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
| | - Uwe Fuchs
- Clinic for Thoracic and Cardiovascular SurgeryHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
| | - Hazem Omran
- Clinic for Thoracic and Cardiovascular SurgeryHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
| | - Kerstin Rubarth
- Department of Biometry and Clinical EpidemiologyUniversity Medical Center Berlin CharitéBerlinGermany
| | - Daniel Dumitrescu
- Clinic for General and Interventional Cardiology/AngiologyHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
- Heart Failure DepartmentHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
| | - Frank Konietschke
- Department of Biometry and Clinical EpidemiologyUniversity Medical Center Berlin CharitéBerlinGermany
| | - Volker Rudolph
- Clinic for General and Interventional Cardiology/AngiologyHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
- Heart Failure DepartmentHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
| | - Jan Gummert
- Clinic for Thoracic and Cardiovascular SurgeryHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
- Heart Failure DepartmentHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
| | - Philipp Sommer
- Clinic for ElectrophysiologyHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
- Heart Failure DepartmentHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
| | - Henrik Fox
- Clinic for Thoracic and Cardiovascular SurgeryHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
- Heart Failure DepartmentHerz‐ und Diabeteszentrum NRW, Ruhr‐Universität BochumBad OeynhausenGermany
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14
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Zhao L, Li S, Zhang C, Tian J, Lu A, Bai R, An J, Greiser A, Huang J, Ma X. Cardiovascular magnetic resonance-determined left ventricular myocardium impairment is associated with C-reactive protein and ST2 in patients with paroxysmal atrial fibrillation. J Cardiovasc Magn Reson 2021; 23:30. [PMID: 33745456 PMCID: PMC7983280 DOI: 10.1186/s12968-021-00732-5] [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: 03/10/2020] [Accepted: 02/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Myocardial strain assessed with cardiovascular magnetic resonance (CMR) feature tracking can detect early left ventricular (LV) myocardial deformation quantitatively in patients with a variety of cardiovascular diseases, but this method has not yet been applied to quantify myocardial strain in patients with atrial fibrillation (AF) and no coexistent cardiovascular disease, i.e., the early stage of AF. This study sought to compare LV myocardial strain and T1 mapping indices in AF patients and healthy subjects, and to investigate the associations of a portfolio of inflammation, cardiac remodeling and fibrosis biomarkers with LV myocardial strain and T1 mapping indices in AF patients with no coexistent cardiovascular disease. METHODS The study consisted of 80 patients with paroxysmal AF patients and no coexistent cardiovascular disease and 20 age- and sex-matched healthy controls. Left atrial volume (LAV), LV myocardial strain and native T1 were assessed with CMR, and compared between the AF patients and healthy subjects. Biomarkers of C-reactive protein (CRP), transforming growth factor beta-1 (TGF-β1), collagen III N-terminal propeptide (PIIINP), and soluble suppression of tumorigenicity 2 (sST2) were obtained with blood tests, and compared between the AF patients and healthy controls. Associations of these biomarkers with those CMR-measured parameters were analyzed for the AF patients. RESULTS For the CMR-measured parameters, the AF patients showed significantly larger LAV and LV end-systolic volume, and higher native T1 than the healthy controls (max P = 0.027). The absolute values of the LV peak systolic circumferential strain and its rate as well as the LV diastolic circumferential strain rate were all significantly reduced in the AF patients (all P < 0.001). For the biomarkers, the AF patients showed significantly larger CRP (an inflammation biomarker) and sST2 (a myocardium stiffness biomarker) than the controls (max P = 0.007). In the AF patients, the five CMR-measured parameters of LAV, three LV strain indices and native T1 were all significantly associated with these two biomarkers of CRP and sST2 (max P = 0.020). CONCLUSIONS In patients with paroxysmal AF and no coexistent cardiovascular disease, LAV enlargement and LV myocardium abnormalities were detected by CMR, and these abnormalities were associated with biomarkers that reflect inflammation and myocardial stiffness.
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Affiliation(s)
- Lei Zhao
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Songnan Li
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Chen Zhang
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jie Tian
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Aijia Lu
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Rong Bai
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jing An
- Siemens Shenzhen Magnetic Resonance Ltd, Shenzhen, China
| | | | - Jie Huang
- Department of Radiology, Michigan State University, East Lansing, USA
| | - Xiaohai Ma
- Department of Intervention, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
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15
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Sugumar H, Nanayakkara S, Vizi D, Wright L, Chieng D, Leet A, Mariani JA, Voskoboinik A, Prabhu S, Taylor AJ, Kalman JM, Kistler PM, Kaye DM, Ling LH. A prospective STudy using invAsive haemodynamic measurements foLLowing catheter ablation for AF and early HFpEF: STALL AF-HFpEF. Eur J Heart Fail 2021; 23:785-796. [PMID: 33565197 DOI: 10.1002/ejhf.2122] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 02/03/2021] [Accepted: 02/03/2021] [Indexed: 12/28/2022] Open
Abstract
AIMS The impact of atrial fibrillation (AF) ablation in early heart failure with preserved ejection fraction (HFpEF) is unknown. Our aim was to determine the impact of AF ablation on symptoms and exercise haemodynamic parameters of early HFpEF. METHODS AND RESULTS Symptomatic AF patients referred for index AF ablation with ejection fraction ≥50% underwent baseline quality of life questionnaires, echocardiography, cardiac magnetic resonance imaging, exercise right heart catheterisation (exRHC), and brain natriuretic peptide (BNP) testing. HFpEF was defined by resting pulmonary capillary wedge pressure (PCWP) ≥15 mmHg or peak exercise PCWP ≥25 mmHg. Patients with HFpEF were offered AF ablation and follow-up exRHC ≥6 months post-ablation. Of 54 patients undergoing baseline evaluation, 35 (65%) had HFpEF identified by exRHC. HFpEF patients were older (64 ± 10 vs. 54 ± 13 years, P < 0.01), and more frequently female (54% vs. 16%, P < 0.01), hypertensive (63% vs. 16%, P < 0.001), and suffering persistent AF (66% vs. 11%, P < 0.001), compared to those without HFpEF. Twenty HFpEF patients underwent AF ablation and follow-up exRHC 12 ± 6 months post-ablation. Nine (45%) patients no longer fulfilled exRHC criteria for HFpEF at follow-up. Patients remaining arrhythmia free (n = 9, 45%) showed significant improvements in peak exercise PCWP (29 ± 4 to 23 ± 2 mmHg, P < 0.01) and Minnesota Living with Heart Failure (MLHF) score (55 ± 30 to 22 ± 30, P < 0.01) while the remainder did not (PCWP 31 ± 5 to 30.0 ± 4 mmHg, P = NS; MLHF score 55 ± 23 to 25 ± 20, P = NS). CONCLUSION Heart failure with preserved ejection fraction frequently coexists in patients with symptomatic AF and preserved ejection fraction. Restoration and maintenance of sinus rhythm in patients with comorbid AF and HFpEF improves haemodynamic parameters, BNP and symptoms associated with HFpEF.
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Affiliation(s)
- Hariharan Sugumar
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia.,Royal Melbourne Hospital, Melbourne, Australia.,University of Melbourne, Melbourne, Australia
| | - Shane Nanayakkara
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia.,Monash University, Melbourne, Australia
| | - Donna Vizi
- The Alfred Hospital, Melbourne, Australia
| | - Leah Wright
- Baker Heart & Diabetes Institute, Melbourne, Australia
| | - David Chieng
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia.,Royal Melbourne Hospital, Melbourne, Australia.,University of Melbourne, Melbourne, Australia
| | - Angeline Leet
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia.,Monash University, Melbourne, Australia
| | - Justin A Mariani
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia.,Monash University, Melbourne, Australia
| | - Aleksandr Voskoboinik
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia
| | - Sandeep Prabhu
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia
| | - Andrew J Taylor
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia.,Monash University, Melbourne, Australia
| | - Jonathan M Kalman
- Royal Melbourne Hospital, Melbourne, Australia.,University of Melbourne, Melbourne, Australia
| | - Peter M Kistler
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia.,University of Melbourne, Melbourne, Australia
| | - David M Kaye
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia.,Monash University, Melbourne, Australia
| | - Liang-Han Ling
- Baker Heart & Diabetes Institute, Melbourne, Australia.,The Alfred Hospital, Melbourne, Australia.,University of Melbourne, Melbourne, Australia
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16
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Ledwoch J, Fröhlich C, Olbrich I, Poch F, Thalmann R, Fellner C, Bradaric C, Laugwitz KL, Kupatt C, Hoppmann P. Impact of sinus rhythm versus atrial fibrillation on left ventricular remodeling after transcatheter aortic valve replacement. Clin Res Cardiol 2021; 110:689-698. [PMID: 33566184 PMCID: PMC8099831 DOI: 10.1007/s00392-021-01810-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/16/2021] [Indexed: 11/25/2022]
Abstract
AIMS Atrial fibrillation (AF) is associated with increased mortality after transcatheter aortic valve replacement (TAVR). Cerebrovascular complications and bleeding events associated with anticoagulation therapy are discussed to be possible causes for this increased mortality. The present study sought to assess whether AF is associated with impaired left ventricular (LV) reverse remodeling representing another possible mechanism for poor outcome. METHODS All patients who underwent TAVR in our institution and had 1-year echocardiography follow-up were included. LV mass index (LVMI) at baseline and follow-up as well as LVMI change at 1 year were assessed with respect to the presence of AF (either at baseline or during hospitalization after TAVR) and sinus rhythm (SR). RESULTS A total of 213 patients (n = 95 in AF; n = 118 in SR) were enrolled in the present study. Patients with AF had higher LVMI at 1 year compared to those with SR (173 ± 61 g/m2 vs. 154 ± 55 g/m2; p = 0.02) and they showed lower relative LVMI change at 1 year (- 2 ± 28% vs. - 9 ± 29%; p = 0.04). In linear regression analysis, AF was independently associated with relative LVMI change (regression coefficient ß 0.076 [95% CI 0.001-0.150]; p = 0.04). With respect to clinical outcome depending on AF and LVMI regression, the Kaplan-Meier estimated event-free of death or cardiac rehospitalization at 3 years was lowest among patients with AF and no LVMI regression. CONCLUSIONS The present study identified a significant association of AF with changes in LVMI after TAVR, which was also shown to be associated with clinical outcome.
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Affiliation(s)
- Jakob Ledwoch
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der isar, Technical University of Munich, Munich, Germany.
- Klinik für Kardiologie, Pneumologie und Internistische Intensivmedizin, München Klinik Neuperlach, Munich, Germany.
| | - Carolin Fröhlich
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Ida Olbrich
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Felix Poch
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Ruth Thalmann
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Carmen Fellner
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Christian Bradaric
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Karl-Ludwig Laugwitz
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Christian Kupatt
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Petra Hoppmann
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der isar, Technical University of Munich, Munich, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
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17
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Ramírez J, Tinker A. Ventricular Restitution Predicts Paroxysmal Atrial Fibrillation in Horses. FUNCTION 2020; 2:zqaa038. [PMID: 35330978 PMCID: PMC8788794 DOI: 10.1093/function/zqaa038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 12/07/2020] [Indexed: 01/06/2023] Open
Affiliation(s)
- Julia Ramírez
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Andrew Tinker
- Clinical Pharmacology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK
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18
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Sohns C, Zintl K, Zhao Y, Dagher L, Andresen D, Siebels J, Wegscheider K, Sehner S, Boersma L, Merkely B, Pokushalov E, Sanders P, Schunkert H, Bänsch D, Mahnkopf C, Brachmann J, Marrouche NF. Impact of Left Ventricular Function and Heart Failure Symptoms on Outcomes Post Ablation of Atrial Fibrillation in Heart Failure: CASTLE-AF Trial. Circ Arrhythm Electrophysiol 2020; 13:e008461. [PMID: 32903044 DOI: 10.1161/circep.120.008461] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Recent data demonstrate promising effects on left ventricular dysfunction and left ventricular ejection fraction (LVEF) improvement following ablation for atrial fibrillation (AF) in patients with heart failure. We sought to study the relationship between LVEF, New York Heart Association class on presentation, and the end points of mortality and heart failure admissions in the CASTLE-AF study (Catheter Ablation for Atrial Fibrillation With Heart Failure) population. Furthermore, predictors for LVEF improvement were examined. METHODS The CASTLE-AF patients with coexisting heart failure and AF (n=363) were randomized in a multicenter prospective controlled fashion to ablation (n=179) versus pharmacological therapy (n=184). Left ventricular function and New York Heart Association class were assessed at baseline (after randomization) and at each follow-up visit. RESULTS In the ablation arm, a significantly higher number of patients experienced an improvement in their LVEF to >35% at the end of the study (odds ratio, 2.17; P<0.001). Compared with the pharmacological therapy arm, both ablation patient groups with severe (<20%) or moderate/severe (≥20% and <35%) baseline LVEF had a significantly lower number of composite end points (hazard ratio [HR], 0.60; P=0.006), all-cause mortality (HR, 0.54; P=0.019), and cardiovascular hospitalizations (HR, 0.66; P=0.017). In the ablation group, New York Heart Association I/II patients at the time of treatment had the strongest improvement in clinical outcomes (primary end point: HR, 0.43; P<0.001; mortality: HR, 0.30; P=0.001). CONCLUSIONS Compared with pharmacological treatment, AF ablation was associated with a significant improvement in LVEF, independent from the severity of left ventricular dysfunction. AF ablation should be performed at early stages of the patient's heart failure symptoms.
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Affiliation(s)
- Christian Sohns
- Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany (C.S.)
| | - Konstantin Zintl
- Department of Cardiology, Klinikum Coburg, Germany (K.Z., C.M., J.B.)
| | - Yan Zhao
- Department of Cardiology, Tulane University School of Medicine, New Orleans, LA (Y.Z., L.D., N.F.M.)
| | - Lilas Dagher
- Department of Cardiology, Tulane University School of Medicine, New Orleans, LA (Y.Z., L.D., N.F.M.)
| | | | | | - Karl Wegscheider
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Germany (K.W., S.S.)
| | - Susanne Sehner
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Germany (K.W., S.S.)
| | - Lucas Boersma
- Department of Cardiology, Antonius Ziekenhuis Nieuwegein, the Netherlands (L.B.)
| | - Béla Merkely
- Department of Cardiology, Semmelweis Medical University, Budapest, Hungary (B.M.)
| | - Evgeny Pokushalov
- State Research Institute of Circulation Pathology, Novosibirsk, Russia (E.P.)
| | - Prashanthan Sanders
- Center for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, Australia (P.S.)
| | - Heribert Schunkert
- Department of Cardiology, Deutsches Herzzentrum München, Munich, Germany (H.S.)
| | - Dietmar Bänsch
- Clinic for Electrophysiology, KMG Klinikum, Güstrow, Germany (D.B.)
| | | | | | - Nassir F Marrouche
- Department of Cardiology, Tulane University School of Medicine, New Orleans, LA (Y.Z., L.D., N.F.M.)
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19
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Bergau L, Sohns C, Sommer P. [Atrial fibrillation : Recent studies and new treatment options]. Herzschrittmacherther Elektrophysiol 2019; 30:356-362. [PMID: 31720788 DOI: 10.1007/s00399-019-00657-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 06/10/2023]
Abstract
Catheter ablation by pulmonary vein isolation (PVI) is established in patients suffering from drug-refractory symptomatic atrial fibrillation (AF). According to recent guidelines, it can also be offered to AF patients as a first-line treatment. The CASTLE-AF study randomized AF patients with severely impaired left ventricular (LV) function to catheter ablation or drug therapy. The patients in the ablation group experienced a significantly lower all-cause mortality and hospitalization rate compared to the conservatively managed group. This result is supported by the CAMERA-MRI trial. The benefit of AF ablation in heart failure was not reproducible in the large randomized CABANA trial. Due to a high cross-over rate, the results are vigorously being discussed and the consequences for clinical practice remain unclear. The DECAAF study described a positive correlation with left atrial fibrosis and the risk for recurrence following PVI. Whether those fibrotic areas should be targeted during the first ablation attempt is now part of the ongoing DECAAF-II trial. Its results might affect the preprocedural planning phase and future ablation strategies. Finally, new ablation techniques are being investigated. In this context, high-power short-duration ablation (HPSD) is of growing interest. In the QDOT-FAST trial, the procedure and fluoroscopy times could be significantly reduce using HPSD catheter technology. However, future studies are still required to evaluate the long-term performance of this novel ablation approach.
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Affiliation(s)
- Leonard Bergau
- Klinik für Elektrophysiologie und Rhythmologie, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Deutschland
| | - Christian Sohns
- Klinik für Elektrophysiologie und Rhythmologie, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Deutschland
| | - Philipp Sommer
- Klinik für Elektrophysiologie und Rhythmologie, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Deutschland.
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Dabir D, Vollbrecht TM, Luetkens JA, Kuetting DLR, Isaak A, Feisst A, Fimmers R, Sprinkart AM, Schild HH, Thomas D. Multiparametric cardiovascular magnetic resonance imaging in acute myocarditis: a comparison of different measurement approaches. J Cardiovasc Magn Reson 2019; 21:54. [PMID: 31462282 PMCID: PMC6714458 DOI: 10.1186/s12968-019-0568-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 07/23/2019] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Myocardial T1 and T2 mapping are reliable diagnostic markers for the detection and follow up of acute myocarditis. The aim of this study was to compare the diagnostic performance of current mapping measurement approaches to differentiate between myocarditis patients and healthy individuals. METHODS Fifty patients with clinically defined acute myocarditis and 30 healthy controls underwent cardiovascular magnetic resonance (CMR). Myocardial T1 relaxation times, T2 relaxation times, left ventricular (LV) function, T2 ratio, early gadolinium enhancement ratio, and presence of late gadolinium enhancement (LGE) were analysed. Native T1 and T2 relaxation times, as well as extracellular volume fraction (ECV) were measured for the entire LV myocardium (global), within the midventricular short axis slice (mSAX), within the midventricular septal wall (ConSept), and within the remote myocardium (remote). Receiver operating characteristics analysis was performed to compare diagnostic performance. RESULTS All measurement approaches revealed significantly higher native T1 and T2 relaxation times as well as ECV values in patients compared to healthy controls (p < 0.05 for all parameters). The global measurement approach showed highest diagnostic performance regarding all mapping parameters (AUCs, native T1: 0.903, T2: 0.847, ECV: 0.731). Direct comparison of the different measurement approaches revealed significant differences in diagnostic performance between the global and the remote approach regarding T1 relaxation times and ECV (p = 0.001 and p = 0.002 respectively). Further, the global measurement approach revealed significantly higher T1 relaxation times compared to the ConSept approach (AUCs: 0.903 vs. 0.783; p = 0.003) and nearly significant differences compared to the mSAX approach (AUC: 0.850; p = 0.051). T2 relaxation times showed no significant differences between all measurement approaches (p > 0.050 for all parameters). CONCLUSIONS Native T1 and T2 mapping allow for accurate detection of acute myocarditis irrespective of the measurement approach used. Even measurements performed exclusively within remote myocardium allow for reliable detection of acute myocarditis, demonstrating diffuse involvement of disease despite a mostly regional or patchy distribution pattern of visible pathologies. The global measurement approach provides the overall best diagnostic performance in acute myocarditis for both T1 and T2 mapping.
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Affiliation(s)
- Darius Dabir
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127 Bonn, Germany
| | - Thomas M. Vollbrecht
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127 Bonn, Germany
| | - Julian A. Luetkens
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127 Bonn, Germany
| | - Daniel L. R. Kuetting
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127 Bonn, Germany
| | - Alexander Isaak
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127 Bonn, Germany
| | - Andreas Feisst
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127 Bonn, Germany
| | - Rolf Fimmers
- Department of Medical Biometry, Computer Science, and Epidemiology (IMBIE), University of Bonn, Bonn, Germany
| | - Alois M. Sprinkart
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127 Bonn, Germany
| | - Hans H. Schild
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127 Bonn, Germany
| | - Daniel Thomas
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127 Bonn, Germany
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Li YG, Gong CQ, Zhao MZ, Sun J, Wang QS, Zhang PP, Feng XF, Yu Y, Yu YC, Liang BE. Determinants of postoperative left atrial structural reverse remodeling in patients undergoing combined catheter ablation of atrial fibrillation and left atrial appendage closure procedure. J Cardiovasc Electrophysiol 2019; 30:1868-1876. [PMID: 31353748 DOI: 10.1111/jce.14094] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/11/2019] [Accepted: 07/22/2019] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Catheter ablation of atrial fibrillation (AFCA) and left atrial appendage closure (LAAC) exert opposite effects on left atrial (LA) size. We aim to observe the net impact of combined AFCA and LAAC strategy on LA size and explore those factors which might affect the postprocedure LA structural remodeling. METHODS A total of 53 patients, who underwent combined AFCA and Watchman LAAC in our center from March to December 2017, were enrolled. Atrial fibrillation (AF) recurrence was monitored after the procedure. Left atrial volume (LAV) and left atrial appendage volume (LAAV) were measured by Mimics based on dual-source computed tomography images. RESULTS At 6 months, sinus rhythm (SR) was maintained in 79.2% patients. LAV was significantly reduced (130.2 ± 36.3 mL to 107.1 ± 30.0 ml; P < .001) in SR maintenance group, but not in AF recurrence group (138.8 ± 39.3 mL to 137.9 ± 36.9 mL; P = .671). In SR group, preoperative LAAV/LAV ratio (B = -0.894; P = .015), NT-proBNP (B = 0.005; P = .019) and left ventricular ejection fraction (LVEF) (B = -0.778; P < .001) could interactively affect the extent of postoperative LA structural reverse remodeling, among which LAAV/LAV ratio could independently predict the significance of reverse remodeling (≥15% reduction in LAV) (OR, 0.56; 95% CI, 0.34-0.90; P = .018). A preoperative LAAV/LAV ratio less than 7.1% is indicative of significant LA structural reverse remodeling in this patient cohort. CONCLUSIONS LA structural reverse remodeling could be evidenced in patients with maintained SR following combined AFCA and LAAC. Smaller LAAV/LAV ratio, higher NT-proBNP or lower LVEF at baseline are associated with more significant LA structural reverse remodeling, while LAAV/LAV ratio can predict the significance of the process after one-stop treatment.
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Affiliation(s)
- Yi-Gang Li
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chang-Qi Gong
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ming-Zhe Zhao
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Sun
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qun-Shan Wang
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Peng-Pai Zhang
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiang-Fei Feng
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Yu
- Department of Ultrasound, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi-Chi Yu
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bing-Er Liang
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Reverse Remodeling After Catheter Ablation for Atrial Fibrillation: Personalizing Ablation in Heart Failure Patients. JACC Clin Electrophysiol 2019; 5:689-691. [PMID: 31221355 DOI: 10.1016/j.jacep.2019.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 05/01/2019] [Indexed: 11/23/2022]
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Echocardiographic assessment in patients with atrial fibrillation (AF) and normal systolic left ventricular function before and after catheter ablation: If AF begets AF, does pulmonary vein isolation terminate the vicious circle? Cardiol J 2019; 27:126-135. [PMID: 30701515 DOI: 10.5603/cj.a2019.0004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/13/2019] [Accepted: 01/21/2019] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Radiofrequency catheter ablation (RFCA) of atrial fibrillation (AF) can be curative. There are conflicting data on whether AF associated atrial and ventricular structural remodeling reverses after ablation. The aim of this study was to evaluate the hemodynamic effect of AF ablation in patients with preserved left ventricular ejection fraction (LVEF). METHODS Forty three AF patients were studied (aged 56 ± 11 years; 29 male, 23% persistent AF, LVEF ≥ 50%) in whom RFCA was performed. Echocardiographic evaluation of atrial and ventricular diameters, volumes and strain imaging by two-dimensional speckle tracking were performed before and at least 6 months after RFCA. Nine patients had AF during baseline examination. RESULTS A significant decrease in the left (LA) and right (RA) atrial volume and an increase in the LA strain were observed 15 ± 7 months after RFCA. In the subgroup with baseline sinus rhythm, the increment in LA strain was only borderline significant. An increase in RA, right ventricular (RV) and Biatrial strain was noticed (p < 0.05). LVEF and global longitudinal strain of the left ventricle (LV), however, did not improve substantially. CONCLUSIONS Radiofrequency catheter ablation of AF in patients with preserved LV systolic function results in significant improvement in RA and RV function with a substantial reduction in LA and RA size. No deleterious impact of AF ablation on LA function was revealed.
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Rujic D, Nazarian S. Native T1 mapping as a biomarker of underlying ventricular myopathy and its reversal in patients with atrial fibrillation and preserved ejection fraction undergoing catheter ablation. Heart Rhythm 2018; 16:433-434. [PMID: 30291916 DOI: 10.1016/j.hrthm.2018.09.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Dragana Rujic
- Department of Cardiology, Cardiovascular Research Unit, Odense University Hospital, Svendborg, Denmark; OPEN, Odense Patient Explorative Network, Odense University Hospital, Odense, Denmark; Section of Cardiac Electrophysiology, Department of Cardiovascular Medicine, The Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Saman Nazarian
- Section of Cardiac Electrophysiology, Department of Cardiovascular Medicine, The Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
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