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Liu W, Hu B, Wang Y, Zhang X, Zhu M, Shi Y, Guo C, Zhang Y. Multiple targets related to mitochondrial function unveiled by metabolomics and proteomics profiles of hearts from atrial fibrillation patients. Front Physiol 2023; 14:1123391. [PMID: 37082238 PMCID: PMC10110950 DOI: 10.3389/fphys.2023.1123391] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/20/2023] [Indexed: 04/07/2023] Open
Abstract
Background: The prominent mitochondrial metabolic changes of the atrium reportedly have significant impact on electrical signals and structural remodeling which play important roles in the occurrence and development of atrial fibrillation (AF). However, the mechanism is not completely known.Objective: This study was aimed to explore the mitochondrial metabolism reprogrammed in AF patients by integrating metabolomics as well as proteomics of human atrium tissues.Methods and Results: Left atrial tissue samples were harvested from 10 non-valvular AF patients and 10 matched samples from healthy donors for transplantation. In metabolomics analysis, 113 metabolites were upregulated and 10 metabolites were downregulated in AF, where multiple pathways related to mitochondrial energy metabolism were enriched. Correlation analysis between the differentially expressed proteins and metabolites identified several hub proteins related to mitochondrial function including Glycerol-3-phosphate dehydrogenase 2 (GPD2), Synemin (SYNM), Plectin (PLEC), with MCC score of 27, 17, 16, respectively, which have the most interactions with the dysregulated metabolites and ranked at the top in network string interactions scored by MCC method. All 330 differentially expressed proteins including 225 upregulated and 105 downregulated molecules were revealed and analyzed, which identified the downregulation of GPD2 (p = 0.02 and FC = 0.77), PLEC (p < 0.001 and FC = 0.71) and SYNM (p = 0.04 and FC = 0.76) in AF patients. Gene Set Variation Analysis (GSEA) showed mitochondrial metabolism-associated pathways including oxidative phosphorylation (NES: −1.73) and ATP biosynthetic process (NES: −2.29), were dramatically diversified in human AF. In GSVA, the expression levels of GPD2, PLEC, and SYNM were demonstrated to be associated with multiple metabolic pathways related to mitochondrial function (e.g., lipid metabolism and AMP activated protein kinase signaling) and cardiac structural and electrical remodeling (e.g., contractile fiber, ion homeostasis), which were proven vital in the development and maintenance of AF.Conclusion: In all, this study provides new insights into understanding the mechanisms of AF progression, especially the reprogramming mitochondrial metabolism, and identifies several genes related to mitochondrial function as novel targets for AF, which may be involved in the occurrence and development of AF.
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Affiliation(s)
- Weizhuo Liu
- Department of Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bo Hu
- Department of Cardiology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yuliang Wang
- Department of Immunology, Nanjing Medical University, Nanjing, China
| | - Xiaobin Zhang
- Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Miao Zhu
- Department of Cardiovascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yu Shi
- Department of Cardiovascular Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Changfa Guo
- Department of Cardiovascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
- *Correspondence: Yangyang Zhang, ; Changfa Guo,
| | - Yangyang Zhang
- Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yangyang Zhang, ; Changfa Guo,
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102
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Liu Y, Zheng Y, Tse G, Bazoukis G, Letsas K, Goudis C, Korantzopoulos P, Li G, Liu T. Association between sick sinus syndrome and atrial fibrillation: A systematic review and meta-analysis. Int J Cardiol 2023; 381:20-36. [PMID: 37023861 DOI: 10.1016/j.ijcard.2023.03.066] [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: 12/28/2022] [Revised: 03/17/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023]
Abstract
AIMS Sick sinus syndrome (SSS) and atrial fibrillation (AF) frequently coexist and show a bidirectional relationship. This systematic review and meta-analysis aimed to decipher the precise relationship between SSS and AF, further exploring and comparing different therapy strategies on the occurrence or progression of AF in patients with SSS. METHODS AND RESULTS A systematic literature search was conducted until November 2022. A total of 35 articles with 37,550 patients were included. Patients with SSS were associated with new-onset AF compared to those without SSS. Catheter ablation was associated with a lower risk of AF recurrence, AF progression, all-cause mortality, stroke and hospitalization of heart failure compared to pacemaker therapy. Regarding the different pacing strategies for SSS, VVI/VVIR has higher risk of new-onset AF than DDD/DDDR. No significant difference was found between AAI/AAIR and DDD/DDDR, as well as between DDD/DDDR and minimal ventricular pacing (MVP) for AF recurrence. AAI/AAIR was associated with higher risk of all-cause mortality when compared to DDD/DDDR, but lower risk of cardiac death when compared to DDD/DDDR. Right atrial septum pacing was associated with a similar risk of new-onset AF or AF recurrence compared to right atrial appendage pacing. CONCLUSION SSS is associated with a higher risk of AF. For patients with both SSS and AF, catheter ablation should be considered. This meta-analysis re-emphasizes that high percentage of ventricular pacing should be avoided in patients with SSS in order to decrease AF burden and mortality.
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Affiliation(s)
- Ying Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Yi Zheng
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Gary Tse
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China; Kent and Medway Medical School, University of Kent and Canterbury Christ Church University, Canterbury, Kent, UK; School of Nursing and Health Studies, Hong Kong, Metropolitan University, Hong Kong, China
| | - George Bazoukis
- Department of Cardiology, Larnaca General Hospital, Inomenon Polition Amerikis, Larnaca, Cyprus; Department of Basic and Clinical Sciences, University of Nicosia Medical School, 2414 Nicosia, Cyprus
| | - Konstantinos Letsas
- Laboratory of Cardiac Electrophysiology, Onassis Cardiac Surgery Center, Athens, Greece
| | - Christos Goudis
- Department of Cardiology, Serres General Hospital, 45110 Serres, Greece
| | | | - Guangping Li
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China.
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103
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Guo R, Fan C, Sun Z, Zhang H, Sun Y, Song L, Jiang Z, Liu L. Clinical efficacy and safety of Cox-maze IV procedure for atrial fibrillation in patients with aortic valve calcification. Front Cardiovasc Med 2023; 10:1092068. [PMID: 37077739 PMCID: PMC10106572 DOI: 10.3389/fcvm.2023.1092068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 03/20/2023] [Indexed: 04/05/2023] Open
Abstract
ObjectiveAtrial fibrillation is associated with a high incidence of heart valve disease. There are few prospective clinical research comparing aortic valve replacement with and without surgical ablation for safety and effectiveness. The purpose of this study was to compare the results of aortic valve replacement with and without the Cox-maze IV procedure in patients with calcific aortic valvular disease and atrial fibrillation.MethodsWe analyzed one hundred and eight patients with calcific aortic valve disease and atrial fibrillation who underwent aortic valve replacement. Patients were divided into concomitant Cox maze surgery (Cox-maze group) and no concomitant Cox-maze operation (no Cox-maze group). After surgery, freedom from atrial fibrillation recurrence and all-cause mortality were evaluated.ResultsFreedom from all-cause mortality after aortic valve replacement at 1 year was 100% in the Cox-maze group and 89%, respectively, in the no Cox-maze group. No Cox-maze group had a lower rate of freedom from atrial fibrillation recurrence and arrhythmia control than those in the Cox-maze group (P = 0.003 and P = 0.012, respectively). Pre-operatively higher systolic blood pressure (hazard ratio, 1.096; 95% CI, 1.004–1.196; P = 0.04) and post-operatively increased right atrium diameters (hazard ratio, 1.755; 95% CI, 1.182–2.604; P = 0.005) were associated with atrial fibrillation recurrence.ConclusionThe Cox-maze IV surgery combined with aortic valve replacement increased mid-term survival and decreased mid-term atrial fibrillation recurrence in patients with calcific aortic valve disease and atrial fibrillation. Pre-operatively higher systolic blood pressure and post-operatively increased right atrium diameters are associated with the prediction of recurrence of atrial fibrillation.
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104
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Espejel-Guzman A, Cabello-Ganem A, Armendariz-Ferrari JC, Serrano-Roman J, Aparicio-Ortiz AD, Espinola-Zavaleta N. Hidden problems in a case of atrial fibrillation. Echocardiography 2023; 40:364-369. [PMID: 36964930 DOI: 10.1111/echo.15554] [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: 01/07/2023] [Revised: 02/06/2023] [Accepted: 02/23/2023] [Indexed: 03/27/2023] Open
Abstract
Atrial fibrillation (AF) is the most common cardiac arrhythmia. However, the relation between congenital heart defects and the predisposition to AF is not fully understood. A 65-year-old male was admitted into the emergency department due to progressive dyspnea, orthopnea, palpitations, and edema. Transthoracic echocardiogram showed bi-atrial enlargement and dysplasia of the mitral leaflets with severe mitral regurgitation. Also, a membrane was noted in the LA, dividing the chamber into two parts, suggestive of cor triatriatum sinister. Coronary computed tomography angiography demonstrated a soft tissue septum in the left atrium. Multimodal evaluation is of vital importance for a complete approach, since, detected in time, it has an excellent prognosis.
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Affiliation(s)
- Adrian Espejel-Guzman
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
| | - Aldo Cabello-Ganem
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
| | - Jose C Armendariz-Ferrari
- Department of Clinical Cardiology and Echocardiography, Hospital Nacional Hipolito Unanue, Lima, Peru
| | - Javier Serrano-Roman
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
| | - Alexis D Aparicio-Ortiz
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
| | - Nilda Espinola-Zavaleta
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
- Department of Echocardiography, ABC Medical Center I.A.P., Mexico City, Mexico
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105
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Liu C, Zeng J, Wu J, Wang J, Wang X, Yao M, Zhang M, Fan J. Identification and validation of key genes associated with atrial fibrillation in the elderly. Front Cardiovasc Med 2023; 10:1118686. [PMID: 37063972 PMCID: PMC10090400 DOI: 10.3389/fcvm.2023.1118686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/02/2023] [Indexed: 03/31/2023] Open
Abstract
BackgroundAtrial fibrillation (AF) is the most common cardiac arrhythmia and significantly increases the risk of stroke and heart failure (HF), contributing to a higher mortality rate. Increasing age is a major risk factor for AF; however, the mechanisms of how aging contributes to the occurrence and progression of AF remain unclear. This study conducted weighted gene co-expression network analysis (WGCNA) to identify key modules and hub genes and determine their potential associations with aging-related AF.Materials and methodsWGCNA was performed using the AF dataset GSE2240 obtained from the Gene Expression Omnibus, which contained data from atrial myocardium in cardiac patients with permanent AF or sinus rhythm (SR). Hub genes were identified in clinical samples. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were also performed.ResultsGreen and pink were the most critical modules associated with AF, from which nine hub genes, PTGDS, COLQ, ASTN2, VASH1, RCAN1, AMIGO2, RBP1, MFAP4, and ALDH1A1, were hypothesized to play key roles in the AF pathophysiology in elderly and seven of them have high diagnostic value. Functional enrichment analysis demonstrated that the green module was associated with the calcium, cyclic adenosine monophosphate (cAMP), and peroxisome proliferator-activated receptors (PPAR) signaling pathways, and the pink module may be associated with the transforming growth factor beta (TGF-β) signaling pathway in myocardial fibrosis.ConclusionWe identified nine genes that may play crucial roles in the pathophysiological mechanism of aging-related AF, among which six genes were associated with AF for the first time. This study provided novel insights into the impact of aging on the occurrence and progression of AF, and identified biomarkers and potential therapeutic targets for AF.
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Affiliation(s)
- Chuanbin Liu
- Western Medical Branch of PLA General Hospital, Beijing, China
| | - Jing Zeng
- Department of Endocrinology, The Second Medical Centre & National Clinical Research Centre for Geriatric Disease, Chinese PLA General Hospital, Beijing, China
| | - Jin Wu
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Institute of Environmental and Operational Medicine, Tianjin, China
| | - Jing Wang
- Department of General Medicine, The First Medical Center of PLA General Hospital, Beijing, China
| | - Xin Wang
- Department of Ophthalmology, PLA Strategic Support Force Characteristic Medical Center, Beijing, China
| | - Minghui Yao
- Department of Cardiovascular Surgery, the First Medical Center of PLA General Hospital, Beijing, China
| | - Minghua Zhang
- Clinical Pharmacy Laboratory, Chinese PLA General Hospital, Beijing, China
- Correspondence: Minghua Zhang Jiao Fan
| | - Jiao Fan
- Institute of Geriatrics, The Second Medical Centre & National Clinical Research Centre for Geriatric Disease, Chinese PLA General Hospital, Beijing, China
- Correspondence: Minghua Zhang Jiao Fan
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106
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PDE3A and GSK3B as Atrial Fibrillation Susceptibility Genes in the Chinese Population via Bioinformatics and Genome-Wide Association Analysis. Biomedicines 2023; 11:biomedicines11030908. [PMID: 36979891 PMCID: PMC10046458 DOI: 10.3390/biomedicines11030908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/08/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
Background: Atrial fibrillation (AF) is the most common cardiac arrhythmia, with uncovered genetic etiology and pathogenesis. We aimed to screen out AF susceptibility genes with potential pathogenesis significance in the Chinese population. Methods: Differentially expressed genes (DEGs) were screened by the Limma package in three GEO data sets of atrial tissue. AF-related genes were identified by combination of DEGs and public GWAS susceptibility genes. Potential drug target genes were selected using the DrugBank, STITCH and TCMSP databases. Pathway enrichment analyses of AF-related genes were performed using the databases GO and KEGG databases. The pathway gene network was visualized by Cytoscape software to identify gene–gene interactions and hub genes. GWAS analysis of 110 cases of AF and 1201 controls was carried out through a genome-wide efficient mixed model in the Fangshan population to verify the results of bioinformatic analysis. Results: A total of 3173 DEGs were identified, 57 of which were found to be significantly associated with of AF in public GWAS results. A total of 75 AF-related genes were found to be potential therapeutic targets. Pathway enrichment analysis selected 79 significant pathways and classified them into 7 major pathway networks. A total of 35 hub genes were selected from the pathway networks. GWAS analysis identified 126 AF-associated loci. PDE3A and GSK3B were found to be overlapping genes between bioinformatic analysis and GWAS analysis. Conclusions: We screened out several pivotal genes and pathways involved in AF pathogenesis. Among them, PDE3A and GSK3B were significantly associated with the risk of AF in the Chinese population. Our study provided new insights into the mechanisms of action of AF.
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107
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Paroxysmal Atrial Fibrillation with Rapid Ventricular Response Following COVID-19 Nasopharyngeal Swab: A Case Report. REPORTS 2023. [DOI: 10.3390/reports6010015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
Abstract
Nasopharyngeal (NP) swab sampling is a simple procedure that has become extremely popular in the coronavirus disease 2019 (COVID-19) era, with hundreds of million specimens collected every day. However, rare but serious complications have been reported following NP swab acquisition. Here we present a case of paroxysmal atrial fibrillation associated with NP specimen collection in a healthy healthcare provider undergoing COVID-19 testing during departmental screening. This response may have been caused by an exaggerated vagal tone triggered by the trigeminocardiac reflex. Less invasive collection methods, such as saliva testing, may be warranted in predisposed individuals.
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108
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Guo Y, Corica B, Romiti GF, Proietti M, Zhang H, Lip GYH. Efficacy of mobile health-technology integrated care based on the 'Atrial fibrillation Better Care' (ABC) pathway in relation to sex: a report from the mAFA-II randomized clinical trial. Intern Emerg Med 2023; 18:449-456. [PMID: 36630000 PMCID: PMC10017580 DOI: 10.1007/s11739-022-03188-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 12/24/2022] [Indexed: 01/12/2023]
Abstract
The Mobile Health Technology for Improved Screening and Optimized Integrated Care in AF (mAFA-II) cluster-randomized trial showed that a mobile health (mHealth)-implemented 'Atrial fibrillation Better Care' (ABC) pathway approach reduced the risk of adverse events in atrial fibrillation (AF) patients. Whether this benefit can be applied to both males and females is unclear, especially given the suboptimal management and poorer cardiovascular outcomes in females with AF. In this post-hoc analysis, we performed a sex-stratified analysis of the mAFA-II trial. Between June 2018 and August 2019, adult AF patients were enrolled across 40 centers in China. The primary outcome was the composite of stroke, thromboembolism, all-cause death, and re-hospitalization. The effect of mAFA intervention according to sex was evaluated through adjusted Cox-regression models. Among the 3,324 patients enrolled in the trial, 2,062 (62.0%) patients were males (mean age: 67.5 ± 14.3 years; 1,021 allocated to mAFA intervention) and 1,262 (38.0%) were females (mean age: 70.2 ± 13.0; 625 allocated to mAFA intervention). A significant risk reduction of the primary composite outcome in patients allocated to mAFA intervention was observed in both males (adjusted hazard ratio [aHR] and 95% confidence interval [CI] 0.30 [0.17-0.52]) and females (aHR [95%CI] 0.50 [0.27-0.92]), without statistically significant interaction (p = 0.225). Sex-based interactions were observed for other secondary outcomes, including all-cause death (p = 0.026) and bleeding events (p = 0.032). A mHealth-technology implemented ABC pathway was similarly effective in reducing the risk of adverse clinical events both in male and female patients. Secondary outcomes showed greater benefits of mAFA intervention in men.
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Affiliation(s)
- Yutao Guo
- Department of Pulmonary Vessel and Thrombotic Disease, Medical School of Chinese PLA, Chinese PLA General Hospital, Beijing, China
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart and Chest Hospital, Liverpool, UK
| | - Bernadette Corica
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart and Chest Hospital, Liverpool, UK
- Department of Translational and Precision Medicine, Sapienza - University of Rome, Rome, Italy
| | - Giulio Francesco Romiti
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart and Chest Hospital, Liverpool, UK
- Department of Translational and Precision Medicine, Sapienza - University of Rome, Rome, Italy
| | - Marco Proietti
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart and Chest Hospital, Liverpool, UK
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Geriatric Unit, IRCCS Istituti Clinici Scientifici Maugeri, Milan, Italy
| | - Hui Zhang
- Department of Pulmonary Vessel and Thrombotic Disease, Medical School of Chinese PLA, Chinese PLA General Hospital, Beijing, China
| | - Gregory Y H Lip
- Department of Pulmonary Vessel and Thrombotic Disease, Medical School of Chinese PLA, Chinese PLA General Hospital, Beijing, China.
- Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool Heart and Chest Hospital, Liverpool, UK.
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
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109
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Zhao Y, Cao LY, Zhao YX, Wang F, Xie LL, Xing HY, Wang Q. Medical record data-enabled machine learning can enhance prediction of left atrial appendage thrombosis in nonvalvular atrial fibrillation. Thromb Res 2023; 223:174-183. [PMID: 36764084 DOI: 10.1016/j.thromres.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/16/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023]
Abstract
BACKGROUND As a major complication of non-valvular atrial fibrillation (NVAF), left atrial appendage (LAA) thrombosis is associated with cerebral ischemic strokes, as well as high morbidity. Due to insufficient incorporation of risk factors, most current scoring methods are limited to the analysis of relationships between clinical characteristics and LAA thrombosis rather than detecting potential risk. Therefore, this study proposes a clinical data-driven machine learning method to predict LAA thrombosis of NVAF. METHODS Patients with NVAF from January 2014 to June 2022 were enrolled from Southwest Hospital. We selected 40 variables for analysis, including demographic data, medical history records, laboratory results, and the structure of LAA. Three machine learning algorithms were adopted to construct classifiers for the prediction of LAA thrombosis risk. The most important variables related to LAA thrombosis and their influences were recognized by SHapley Addictive exPlanations method. In addition, we compared our model with CHADS2 and CHADS2-VASc scoring methods. RESULTS A total of 713 participants were recruited, including 127 patients with LAA thrombosis and 586 patients with no obvious thrombosis. The consensus models based on Random Forest and eXtreme Gradient Boosting LAA thrombosis prediction (RXTP) achieved the best accuracy of 0.865, significantly outperforming CHADS2 score and CHA2DS2-VASc score (0.757 and 0.754, respectively). The SHAP results showed that B-type natriuretic peptide, left atrial appendage width, C-reactive protein, Fibrinogen and estimated glomerular filtration rate are closely related to the risk of LAA thrombosis in nonvalvular atrial fibrillation. CONCLUSIONS The RXTP-NVAF model is the most effective model with the greatest ROC value and recall rate. The summarized risk factors obtained from SHAP enable the optimization of the treatment strategy, thereby preventing thromboembolism events and the occurrence of cardiogenic ischemic stroke.
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Affiliation(s)
- Yue Zhao
- Department of Pharmacy, the First Affiliated Hospital of Army Medical University (Third Military Medical University),Chongqing, China
| | - Li-Ya Cao
- Department of Pharmacy, the First Affiliated Hospital of Army Medical University (Third Military Medical University),Chongqing, China
| | - Ying-Xin Zhao
- Department of Pharmacy, Army Medical Center, Army Medical University (Third Military Medical University),Chongqing, China
| | - Fei Wang
- Medical Big Data and Artificial Intelligence Center, the First Affiliated Hospital of Army Medical University (Third Military Medical University), Chongqing, China
| | - Lin-Li Xie
- Department of Pharmacy, the First Affiliated Hospital of Army Medical University (Third Military Medical University),Chongqing, China
| | - Hai-Yan Xing
- Department of Pharmacy, Army Medical Center, Army Medical University (Third Military Medical University),Chongqing, China.
| | - Qian Wang
- Department of Pharmacy, the First Affiliated Hospital of Army Medical University (Third Military Medical University),Chongqing, China.
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110
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Bernal Oñate CP, Melgarejo Meseguer FM, Carrera EV, Sánchez Muñoz JJ, García Alberola A, Rojo Álvarez JL. Different Ventricular Fibrillation Types in Low-Dimensional Latent Spaces. SENSORS (BASEL, SWITZERLAND) 2023; 23:2527. [PMID: 36904731 PMCID: PMC10006875 DOI: 10.3390/s23052527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/08/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
The causes of ventricular fibrillation (VF) are not yet elucidated, and it has been proposed that different mechanisms might exist. Moreover, conventional analysis methods do not seem to provide time or frequency domain features that allow for recognition of different VF patterns in electrode-recorded biopotentials. The present work aims to determine whether low-dimensional latent spaces could exhibit discriminative features for different mechanisms or conditions during VF episodes. For this purpose, manifold learning using autoencoder neural networks was analyzed based on surface ECG recordings. The recordings covered the onset of the VF episode as well as the next 6 min, and comprised an experimental database based on an animal model with five situations, including control, drug intervention (amiodarone, diltiazem, and flecainide), and autonomic nervous system blockade. The results show that latent spaces from unsupervised and supervised learning schemes yielded moderate though quite noticeable separability among the different types of VF according to their type or intervention. In particular, unsupervised schemes reached a multi-class classification accuracy of 66%, while supervised schemes improved the separability of the generated latent spaces, providing a classification accuracy of up to 74%. Thus, we conclude that manifold learning schemes can provide a valuable tool for studying different types of VF while working in low-dimensional latent spaces, as the machine-learning generated features exhibit separability among different VF types. This study confirms that latent variables are better VF descriptors than conventional time or domain features, making this technique useful in current VF research on elucidation of the underlying VF mechanisms.
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Affiliation(s)
- Carlos Paúl Bernal Oñate
- Departamento de Eléctrica, Electrónica y Telecomunicaciones, Universidad de las Fuerzas Armadas—ESPE, Sangolqui 171103, Ecuador
| | | | - Enrique V. Carrera
- Departamento de Eléctrica, Electrónica y Telecomunicaciones, Universidad de las Fuerzas Armadas—ESPE, Sangolqui 171103, Ecuador
| | | | | | - José Luis Rojo Álvarez
- Department of Signal Theory and Communications, Telematics and Computing Systems, Universidad Rey Juan Carlos, 28943 Madrid, Spain
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111
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Donniacuo M, De Angelis A, Telesca M, Bellocchio G, Riemma MA, Paolisso P, Scisciola L, Cianflone E, Torella D, Castaldo G, Capuano A, Urbanek K, Berrino L, Rossi F, Cappetta D. Atrial fibrillation: Epigenetic aspects and role of sodium-glucose cotransporter 2 inhibitors. Pharmacol Res 2023; 188:106591. [PMID: 36502999 DOI: 10.1016/j.phrs.2022.106591] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 12/13/2022]
Abstract
Atrial fibrillation (AF) is the most frequent arrhythmia and is associated with substantial morbidity and mortality. Pathophysiological aspects consist in the activation of pro-fibrotic signaling and Ca2+ handling abnormalities at atrial level. Structural and electrical remodeling creates a substrate for AF by triggering conduction abnormalities and cardiac arrhythmias. The care of AF patients focuses predominantly on anticoagulation, symptoms control and the management of risk factors and comorbidities. The goal of AF therapy points to restore sinus rhythm, re-establish atrioventricular synchrony and improve atrial contribution to the stroke volume. New layer of information to better comprehend AF pathophysiology, and identify targets for novel pharmacological interventions consists of the epigenetic phenomena including, among others, DNA methylation, histone modifications and noncoding RNAs. Moreover, the benefits of sodium-glucose cotransporter 2 inhibitors (SGLT2i) in diabetic and non-diabetic patients at cardiovascular risk as well as emerging evidence on the ability of SGLT2i to modify epigenetic signature in cardiovascular diseases provide a solid background to investigate a possible role of this drug class in the onset and progression of AF. In this review, following a summary of pathophysiology and management, epigenetic mechanisms in AF and the potential of sodium-glucose SGLT2i in AF patients are discussed.
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Affiliation(s)
- M Donniacuo
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Via Costantinopoli 16, 80138 Naples, Italy
| | - A De Angelis
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Via Costantinopoli 16, 80138 Naples, Italy
| | - M Telesca
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Via Costantinopoli 16, 80138 Naples, Italy
| | - G Bellocchio
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Via Costantinopoli 16, 80138 Naples, Italy
| | - M A Riemma
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Via Costantinopoli 16, 80138 Naples, Italy
| | - P Paolisso
- Cardiovascular Center Aalst, OLV Hospital, Aalst, Belgium; Department of Advanced Biomedical Sciences, University of Naples "Federico II", Via A. Pansini 5, 80131 Naples, Italy
| | - L Scisciola
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Via Costantinopoli 16, 80138 Naples, Italy
| | - E Cianflone
- Department of Medical and Surgical Sciences, Magna Graecia University, Viale Europa, 88100 Catanzaro, Italy
| | - D Torella
- Department of Experimental and Clinical Medicine, Magna Graecia University, Viale Europa, 88100 Catanzaro, Italy
| | - G Castaldo
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Via A. Pansini 5, 80131 Naples, Italy; CEINGE-Advanced, Via G. Salvatore 486, 80131 Naples, Italy
| | - A Capuano
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Via Costantinopoli 16, 80138 Naples, Italy
| | - K Urbanek
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Via A. Pansini 5, 80131 Naples, Italy; CEINGE-Advanced, Via G. Salvatore 486, 80131 Naples, Italy.
| | - L Berrino
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Via Costantinopoli 16, 80138 Naples, Italy
| | - F Rossi
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Via Costantinopoli 16, 80138 Naples, Italy
| | - D Cappetta
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Via Costantinopoli 16, 80138 Naples, Italy
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112
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Houser SR. Proarrhythmic Remodeling of Atrial Myocyte Ca 2+ Handling in Atrial Fibrillation. JACC. BASIC TO TRANSLATIONAL SCIENCE 2023; 8:16-18. [PMID: 36777174 PMCID: PMC9911327 DOI: 10.1016/j.jacbts.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Steven R. Houser
- Address for correspondence: Dr Steven R. Houser, Department of Cardiovascular Sciences, Temple University, Medical Education Research Building, 3500 North Broad Street, Philadelphia, Pennsylvania 19140, USA.
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Effects of apocynin on ISO-induced delayed afterdepolarizations in rat atrial myocytes and the underlying mechanisms. Biochem Biophys Res Commun 2023; 638:36-42. [PMID: 36436340 DOI: 10.1016/j.bbrc.2022.11.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 10/12/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022]
Abstract
We aimed to investigate the effect of apocynin (APO) on delayed afterdepolarizations (DADs) in rat atrial myocytes and the underlying mechanisms. Rat atrial myocytes were isolated by a Langendorff perfusion apparatus. DADs were induced by isoproterenol (ISO). Action potentials (APs) and ion currents were recorded by the whole-cell clamp technique. The fluorescent indicator fluo-4 was used to visualize intracellular Ca2+ transients, and western blotting was used to measure the expression of related proteins. The incidence of DADs in rat atrial myocytes increased significantly after ISO treatment, leading to an increased incidence of triggered activity (TA). The incidence of ISO-induced DADs and TA were reduced by 100.0 μM APO from 48.89% to 25.56% and 17.78% to 5.56%, respectively. In the range of 3.0 μM-300.0 μM, the effect of APO was concentration dependent, with a half maximal inhibitory concentration (IC50) of 120.1 μM and a Hill coefficient of 1.063. APO reversed the increase in transient inward current (Iti) and Na+/Ca2+-exchange current (INCX) densities induced by ISO in atrial myocytes. The frequency of spontaneous Ca2+ transients in atrial myocytes was reduced by 100.0 μM APO. Compared with ISO, APO downregulated the expression of NOX2 and increased the phosphorylation of PLNSer16 and the sarcoplasmic reticulum Ca2+-ATPase-2a (SERCA2a) level; however, it had little effect on ryanodine-receptor channel type-2 (RyR2). These findings showed that APO may block Iti and INCX and reduce intracellular Ca2+ levels in rat atrial myocytes, thus reducing the incidence of ISO-induced DADs and TA.
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114
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Zhong X, Jiao H, Zhao D, Yang M, Teng J. Association between serum uric acid levels and atrial fibrillation in different fasting glucose patterns: A case-control study. Front Endocrinol (Lausanne) 2023; 14:1021267. [PMID: 36755929 PMCID: PMC9899926 DOI: 10.3389/fendo.2023.1021267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 01/04/2023] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Previous studies have shown both dysglycaemia and hyperuricemia are associated with an increased risk of atrial fibrillation (AF), while the relationship between serum uric acid (SUA) levels and AF in different fasting glucose patterns (FBG) is unclear. Therefore, this study aimed to determine the association between SUA and AF in different FBG patterns. METHODS A total of 1840 patients in this case-control study were enrolled, including 920 AF patients and 920 controls. Patients were divided into three groups according to the different FBG patterns: normoglycemic, impaired fasting glucose (IFG), and diabetes mellitus (DM). Multivariate logistic regression models were performed to evaluate the relationship between SUA and AF in different FBG patterns. Pearson correlation analysis was used to explore the correlation between SUA and metabolic factors. Receiver operating characteristic (ROC) curve models indicated the diagnostic efficiency of SUA for diagnosing AF. RESULTS SUA was independently associated with AF after adjusting for all confounding factors in different FBG patterns(normoglycemic: OR=1.313, 95% CI:1.120-1.539; IFG: OR=1.386, 95% CI:1.011-1.898; DM: OR=1.505, 95% CI:1.150-1.970). Pearson's correlation analysis suggested that SUA in AF patients was correlated with several different metabolic factors in different FBG patterns (p<0.05). ROC curve analysis showed that SUA in the normoglycemic group combined with CHD and APOB [AUC: 0.906 (95% CI: 0.888-0.923)], in the IFG group combined with CHD and Scr [AUC: 0.863 (95% CI: 0.820-0.907)], in the DM group combined with CHD and SBP [AUC: 0.858 (95% CI: 0.818-0.898)] had the highest AUC for predicting AF. CONCLUSION Findings implied a significant association between SUA and AF in different FBG patterns and provide specific models combined with other factors (CHD, APOB, SCr, SBP), which might contribute to the diagnosis of AF.
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Affiliation(s)
- Xia Zhong
- Department of First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Huachen Jiao
- Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
- *Correspondence: Huachen Jiao,
| | - Dongsheng Zhao
- Department of First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Mengqi Yang
- Department of First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Jing Teng
- Department of First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
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115
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Li R, Yuan P, Ma J, Zhu W. Editorial: Effects of oral anticoagulant therapy in atrial fibrillation patients with comorbidities. Front Cardiovasc Med 2023; 10:1205870. [PMID: 37200973 PMCID: PMC10187063 DOI: 10.3389/fcvm.2023.1205870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 05/20/2023] Open
Affiliation(s)
- Runkai Li
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ping Yuan
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Correspondence: Ping Yuan Jianyong Ma Wengen Zhu
| | - Jianyong Ma
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- Correspondence: Ping Yuan Jianyong Ma Wengen Zhu
| | - Wengen Zhu
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Correspondence: Ping Yuan Jianyong Ma Wengen Zhu
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Willar B, Tran KV, Fitzgibbons TP. Epicardial adipocytes in the pathogenesis of atrial fibrillation: An update on basic and translational studies. Front Endocrinol (Lausanne) 2023; 14:1154824. [PMID: 37020587 PMCID: PMC10067711 DOI: 10.3389/fendo.2023.1154824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/06/2023] [Indexed: 04/07/2023] Open
Abstract
Epicardial adipose tissue (EAT) is an endocrine organ containing a host of cell types and undoubtedly serving a multitude of important physiologic functions. Aging and obesity cause hypertrophy of EAT. There is great interest in the possible connection between EAT and cardiovascular disease, in particular, atrial fibrillation (AF). Increased EAT is independently associated with AF and adverse events after AF ablation (e.g., recurrence of AF, and stroke). In general, the amount of EAT correlates with BMI or visceral adiposity. Yet on a molecular level, there are similarities and differences between epicardial and abdominal visceral adipocytes. In comparison to subcutaneous adipose tissue, both depots are enriched in inflammatory cells and chemokines, even in normal conditions. On the other hand, in comparison to visceral fat, epicardial adipocytes have an increased rate of fatty acid release, decreased size, and increased vascularity. Several studies have described an association between fibrosis of EAT and fibrosis of the underlying atrial myocardium. Others have discovered paracrine factors released from EAT that could possibly mediate this association. In addition to the adjacent atrial cardiomyocytes, EAT contains a robust stromal-vascular fraction and surrounds the ganglionic plexi of the cardiac autonomic nervous system (cANS). The importance of the cANS in the pathogenesis of atrial fibrillation is well known, and it is quite likely that there is feedback between EAT and the cANS. This complex interplay may be crucial to the maintenance of normal sinus rhythm or the development of atrial fibrillation. The extent the adipocyte is a microcosm of metabolic health in the individual patient may determine which is the predominant rhythm.
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Sha Z, Hou T, Zhou T, Dai Y, Bao Y, Jin Q, Ye J, Lu Y, Wu L. Causal relationship between atrial fibrillation and leukocyte telomere length: A two sample, bidirectional Mendelian randomization study. Front Cardiovasc Med 2023; 10:1093255. [PMID: 36873417 PMCID: PMC9975167 DOI: 10.3389/fcvm.2023.1093255] [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: 11/08/2022] [Accepted: 01/12/2023] [Indexed: 02/17/2023] Open
Abstract
Background Atrial fibrillation (AF) is an age-related disease, while telomeres play a central role in aging. But the relationship between AF and telomere length (LTL) is still controversial. This study aims to examine the potential causal association between AF and LTL by using Mendelian randomization (MR). Methods Bidirectional two-sample MR, expression and protein quantitative trait loci (eQTL and pQTL)-based MR were performed using genetic variants from United Kingdom Biobank, FinnGen, and a meta-analysis study, which comprised nearly 1 million participants in the Atrial Fibrillation Study and 470,000 participants in the Telomere Length Study. Apart from the inverse variance weighted (IVW) approach as the main MR analysis, complementary analysis approaches and sensitivity analysis were applied. Results The forward MR revealed a significant causal estimate for the genetically predicted AF with LTL shortening [IVW: odds ratio (OR) = 0.989, p = 0.007; eQTL-IVW: OR = 0.988, p = 0.005; pQTL-IVW: OR = 0.975, p < 0.005]. But in the reverse MR analysis, genetically predicted LTL has no significant correlation with AF (IVW: OR = 0.995, p = 0.916; eQTL-IVW: OR = 0.999, p = 0.995; pQTL-IVW: OR = 1.055, p = 0.570). The FinnGen replication data yielded similar findings. Sensitivity analysis ensured the stability of the results. Conclusion The presence of AF leads to LTL shortening rather than the other way around. Aggressive intervention for AF may delay the telomere attrition.
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Affiliation(s)
- Zimo Sha
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tianzhichao Hou
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Taojie Zhou
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Dai
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Institute of Cardiovascular Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yangyang Bao
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qi Jin
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Ye
- Department of Geriatrics, Medical Center on Aging of Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,International Laboratory in Hematology and Cancer, Shanghai Jiao Tong University School of Medicine/Ruijin Hospital/CNRS/Inserm/Côte d'Azur University, Shanghai, China
| | - Yiming Lu
- Department of Geriatrics, Medical Center on Aging of Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,International Laboratory in Hematology and Cancer, Shanghai Jiao Tong University School of Medicine/Ruijin Hospital/CNRS/Inserm/Côte d'Azur University, Shanghai, China
| | - Liqun Wu
- Department of Cardiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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118
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Liu D, Han X, Zhang Z, Tse G, Shao Q, Liu T. Role of Heat Shock Proteins in Atrial Fibrillation: From Molecular Mechanisms to Diagnostic and Therapeutic Opportunities. Cells 2022; 12:cells12010151. [PMID: 36611952 PMCID: PMC9818491 DOI: 10.3390/cells12010151] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/22/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023] Open
Abstract
Heat shock proteins (HSPs) are endogenous protective proteins and biomarkers of cell stress response, of which examples are HSP70, HSP60, HSP90, and small HSPs (HSPB). HSPs protect cells and organs, especially the cardiovascular system, against harmful and cytotoxic conditions. More recent attention has focused on the roles of HSPs in the irreversible remodeling of atrial fibrillation (AF), which is the most common arrhythmia in clinical practice and a significant contributor to mortality. In this review, we investigated the relationship between HSPs and atrial remodeling mechanisms in AF. PubMed was searched for studies using the terms "Heat Shock Proteins" and "Atrial Fibrillation" and their relevant abbreviations up to 10 July 2022. The results showed that HSPs have cytoprotective roles in atrial cardiomyocytes during AF by promoting reverse electrical and structural remodeling. Heat shock response (HSR) exhaustion, followed by low levels of HSPs, causes proteostasis derailment in cardiomyocytes, which is the basis of AF. Furthermore, potential implications of HSPs in the management of AF are discussed in detail. HSPs represent reliable biomarkers for predicting and staging AF. HSP inducers may serve as novel therapeutic modalities in postoperative AF. HSP induction, either by geranylgeranylacetone (GGA) or by other compounds presently in development, may therefore be an interesting new approach for upstream therapy for AF, a strategy that aims to prevent AF whilst minimizing the ventricular proarrhythmic risks of traditional anti-arrhythmic agents.
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Affiliation(s)
- Daiqi Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Xuyao Han
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Zhiwei Zhang
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Gary Tse
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
- Cardiac Electrophysiology Unit, Cardiovascular Analytics Group, Hong Kong, China
- Kent and Medway Medical School, Canterbury CT2 7NZ, UK
| | - Qingmiao Shao
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
- Correspondence: (Q.S.); or (T.L.)
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
- Correspondence: (Q.S.); or (T.L.)
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119
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Zhao Z, Chen Y, Wu B, Qiu G, Hong L, Chen X, Zhang X. Pulsed-Field Ablation Using a Novel Ablation-Mapping Integrated System for Pulmonary Vein Isolation-A Preliminary Animal Study. J Cardiovasc Dev Dis 2022; 9:jcdd9120425. [PMID: 36547422 PMCID: PMC9781645 DOI: 10.3390/jcdd9120425] [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: 10/14/2022] [Revised: 11/11/2022] [Accepted: 11/22/2022] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE The purpose of this study is to evaluate the preliminary safety and effect of a pulsed electric field (PEF) ablation system. METHODS The pulmonary veins (PVs) and superior vena cava (SVC) were isolated with the pulsed field ablation (PFA) system, which included a PEF generator and an electrode. The effects of PFA were investigated in six porcines using a novel circular catheter with combined functions (mapping/ablation) designed to work with a cardiac mapping system. The PEF generator delivered a train of biphasic pulsed electric pulses with a high amplitude (800-2000 V) and short pulse duration. The voltage mapping, PVs and SVC potentials, ostial diameters, and phrenic nerve and esophagus viability data were collected 4 weeks later, after which the animals were subsequently euthanized for gross histopathology analysis. RESULTS PFA 100% isolated the PVs and SVC with four applications with a mean pulse number of 100-150 pulses, causing no muscle convulsion. PFA does not cause PV stenosis or phrenic nerve dysfunction. Histological analysis confirmed 100% transmurally without any venous stenoses or phrenic injuries. Pathology follow-up showed that PFA had selectively ablated cardiomyocytes but spared blood vessels, the esophagus, and phrenic nerves; after ablation, the myocardial tissue showed homogeneous fibrosis. CONCLUSION The PFA system is safe and feasible in the preliminary porcine model, which can effectively isolate PVs and SVCs. Transmural tissue damage can be achieved without phrenic palsy or stenosis.
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Affiliation(s)
- Zhihong Zhao
- Department of Cardiology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China
- Key Laboratory of Pulsed Power Translational Medicine of Zhejiang Province, Hangzhou 311121, China
| | - Yonggang Chen
- Key Laboratory of Pulsed Power Translational Medicine of Zhejiang Province, Hangzhou 311121, China
| | - Bin Wu
- Key Laboratory of Pulsed Power Translational Medicine of Zhejiang Province, Hangzhou 311121, China
| | - Gaodong Qiu
- Key Laboratory of Pulsed Power Translational Medicine of Zhejiang Province, Hangzhou 311121, China
| | - Liangjie Hong
- Key Laboratory of Pulsed Power Translational Medicine of Zhejiang Province, Hangzhou 311121, China
| | - Xinhua Chen
- Key Laboratory of Pulsed Power Translational Medicine of Zhejiang Province, Hangzhou 311121, China
- Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhejiang University, Hangzhou 310009, China
- Correspondence: (X.C.); (X.Z.)
| | - Xingwei Zhang
- Department of Cardiology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China
- Correspondence: (X.C.); (X.Z.)
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120
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Matsumori A. Management of Atrial Fibrillation Using Immunoglobulin Free Light Chains, Novel Biomarkers of Inflammation. Eur Cardiol 2022; 17:e22. [PMID: 36643069 PMCID: PMC9820057 DOI: 10.15420/ecr.2022.30] [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: 07/11/2022] [Accepted: 08/04/2022] [Indexed: 11/11/2022] Open
Abstract
AF is the most common cardiac arrhythmia. There is growing evidence that inflammatory mechanisms play an important role in its pathogenesis; inflammasome activation contributes to the onset and progression of AF. An increase in NOD-like-receptor-pyrin domain-containing-3 (NLRP3) inflammasome activation releases proinflammatory cytokines that activate nuclear factor (NF)-κB, which regulates the production of immunoglobulin free light chains (FLCs). Serum FLC levels are increased in patients with AF, and FLCs are biomarkers of inflammation. Inflammasomes and NF-κB may be targets for anti-inflammatory strategies to prevent and treat AF when FLC levels are elevated. This review discusses the role of inflammation in the pathogenesis of AF, as well as FLCs as novel inflammatory biomarkers for the management of AF.
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Affiliation(s)
- Akira Matsumori
- Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto, Japan
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121
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Xu D, Xu C, Xue X, Xu Y, Zhao J, Huang T, Wang Z, Zhao Q, Zhou Z, Huang Y, Yu L, Wang H. Activation of cannabinoid receptor 2 attenuates Angiotensin II-induced atrial fibrillation via a potential NOX/CaMKII mechanism. Front Cardiovasc Med 2022; 9:968014. [PMID: 36312282 PMCID: PMC9616165 DOI: 10.3389/fcvm.2022.968014] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 09/29/2022] [Indexed: 11/13/2022] Open
Abstract
Background Atrial fibrillation (AF) is the most frequent arrythmia managed in clinical practice. Several mechanisms have been proposed to contribute to the occurrence and persistence of AF, in which oxidative stress plays a non-negligible role. The endocannabinoid system (ECS) is involved in a variety physiological and pathological processes. Cannabinoid receptor 1 (CB1R) and cannabinoid receptor 2 (CB2R) are expressed in the heart, and studies have shown that activating CB2R has a protective effect on the myocardium. However, the role of CB2R in AF is unknown. Materials and methods Angiotensin II (Ang II)-infused mice were treated with the CB2R agonist AM1241 intraperitoneally for 21 days. Atrial structural remodeling, AF inducibility, electrical transmission, oxidative stress and fibrosis were measured in mice. Results The susceptibility to AF and the level of oxidative stress were increased significantly in Ang II-infused mice. In addition, nicotinamide adenine dinucleotide phosphate oxidase 2 (NOX2), NOX4, and oxidized Ca2+/calmodulin-dependent protein kinase II (ox-CaMKII) were highly expressed. More importantly, treatment with AM1241 activated CB2R, resulting in a protective effect. Conclusion The present study demonstrates that pharmacological activation of CB2R exerts a protective effect against AF via a potential NOX/CaMKII mechanism. CB2R is a potential therapeutic target for AF.
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Affiliation(s)
- Dengyue Xu
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China,Postgraduate College, China Medical University, Shenyang, Liaoning, China
| | - Chennian Xu
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
| | - Xiaodong Xue
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
| | - Yinli Xu
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
| | - Jikai Zhao
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
| | - Tao Huang
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
| | - Zhishang Wang
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
| | - Qiusheng Zhao
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
| | - Zijun Zhou
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
| | - Yuting Huang
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China
| | - Liming Yu
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China,Liming Yu,
| | - Huishan Wang
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, Shenyang, Liaoning, China,*Correspondence: Huishan Wang,
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122
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Zhou Y, Lin D, Wu S, Xiao J, Yu M, Xiao Z, Wu M, Chen Z, Tian C, Chen R, Chen Y, Tan X. Dysnatremia is associated with increased risk of all-cause mortality within 365 days post-discharge in patients with atrial fibrillation without heart failure: A prospective cohort study. Front Cardiovasc Med 2022; 9:963103. [PMID: 36312256 PMCID: PMC9597697 DOI: 10.3389/fcvm.2022.963103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/14/2022] [Indexed: 02/05/2023] Open
Abstract
AIM The aim of this study is to evaluate the association between serum sodium concentrations at hospital admission and all-cause mortality within 365 days post-discharge in patients with atrial fibrillation (AF) without heart failure (HF). METHODS The prospective cohort study enrolled 1,446 patients with AF without HF between November 2018 and October 2020. A follow-up was performed 30, 90, 180, and 365 days after enrollment through outpatient visits or telephone interviews. All-cause mortality was estimated in three groups according to serum sodium concentrations: hyponatremia (< 135 mmol/L), normonatremia (135-145 mmol/L), and hypernatremia (> 145 mmol/L). We estimated the risk of all-cause mortalities using univariable and multivariable Cox proportional hazards models with normonatremia as the reference. RESULTS The all-cause mortalities of hyponatremia, normonatremia, and hypernatremia were 20.6, 9.4, and 33.3% within 365 days post-discharge, respectively. In the univariable analysis, hyponatremia (HR: 2.19, CI 1.5-3.2) and hypernatremia (HR: 4.03, CI 2.32-7.02) increased the risk of all-cause mortality. The HRs for hyponatremia and hypernatremia were 1.55 (CI 1.05-2.28) and 2.55 (CI 1.45-4.46) after adjustment for age, diabetes mellitus, loop diuretics, antisterone, antiplatelet drugs, and anticoagulants in the patients with AF without HF. The association between serum sodium concentrations and the HRs of all-cause mortality was U-shaped. CONCLUSION Dysnatremia at hospital admission was an independent factor for all-cause mortality in patients with AF without HF within 365 days post-discharge.
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Affiliation(s)
- Yan Zhou
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Dong Lin
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
- School of Medical and Health Sciences, Edith Cowan University, Perth, WA, Australia
| | - Shiwan Wu
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Jiaxin Xiao
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Min Yu
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Zhongbo Xiao
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Muli Wu
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Zhisheng Chen
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
- School of Medical and Health Sciences, Edith Cowan University, Perth, WA, Australia
| | - Cuihong Tian
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
- School of Medical and Health Sciences, Edith Cowan University, Perth, WA, Australia
| | - Rongbing Chen
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Yequn Chen
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
- Clinical Research Center, First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Xuerui Tan
- Department of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, China
- Clinical Research Center, First Affiliated Hospital of Shantou University Medical College, Shantou, China
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Dong Y, Huang T, Zhai Z, Dong Q, Xia Z, Xia Z, Yu J, Jiang X, Hong K, Wu Y, Cheng X, Li J. Lowering serum homocysteine in H-type hypertensive patients with atrial fibrillation after radiofrequency catheter ablation to prevent atrial fibrillation recurrence. Front Nutr 2022; 9:995838. [PMID: 36176636 PMCID: PMC9514121 DOI: 10.3389/fnut.2022.995838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 08/25/2022] [Indexed: 11/21/2022] Open
Abstract
Background Prior investigation revealed that elevated serum total homocysteine (tHcy) are strongly correlated with atrial fibrillation (AF) recurrence. Herein, the goal of this study was to elucidate whether folic acid (FA) treatment reduced AF recurrence following radiofrequency catheter ablation (RFCA). Methods To conduct this retrospective research, we included consecutive H-type hypertensive AF patients, who were treated with first RFCA, between January 2010 and January 2022. We assessed the AF recurrence risk between patients who were taking 10 mg enalapril and 0.8 mg FA in a single-pill combination (enalapril–FA) daily and those who were taking a pill of 10 mg enalapril only. Outcomes were compared using the propensity-score matched analysis. Cox regression model was employed for the evaluation of AF recurrence events. Results Out of 2,714 patients, 645 patients receiving enalapril and 282 patients receiving enalapril-FA were included for analysis. Following propensity score matching, 239 patients remained in each group. These patients were followed-up for a median of 379 (137–596) days, and revealed that the enalapril-FA patients had drastically reduced AF recurrence, compared to the enalapril patients [adjusted hazard ratio (HR), 0.68; 95% confidence interval (CI), 0.48–0.97; P = 0.029]. Apart from this, no interactions were detected in the subgroup analysis. Conclusion In H-type hypertensive AF patients who were treated with first RFCA, FA supplementation was correlated with a reduced AF recurrence risk.
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Affiliation(s)
- Youzheng Dong
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ting Huang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhenyu Zhai
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Quanbin Dong
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhen Xia
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zirong Xia
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jianhua Yu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xinghua Jiang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Kui Hong
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Key Laboratory of Molecular Medicine, Nanchang, China
| | - Yanqing Wu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaoshu Cheng
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, China
| | - Juxiang Li
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- *Correspondence: Juxiang Li
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Yildiz M, Lavie CJ, Morin DP, Oktay AA. The complex interplay between diabetes mellitus and atrial fibrillation. Expert Rev Cardiovasc Ther 2022; 20:707-717. [PMID: 35984314 DOI: 10.1080/14779072.2022.2115357] [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] [Indexed: 10/15/2022]
Abstract
INTRODUCTION : A growing body of evidence suggests that diabetes mellitus (DM) is associated with an increased risk of new-onset atrial fibrillation (AF) and contributes to suboptimal arrhythmia control and poor prognosis in patients with AF. The high prevalence of AF among patients with DM is primarily attributed to common risk factors, shared pathophysiological mechanisms, and associated atrial remodeling and autonomic dysfunction. AREAS COVERED : This comprehensive review covers the current data on the role of DM in the development and prognosis of AF. In addition, we review the impact of anti-DM medications on AF prevention and the role of anticoagulation in patients with coexisting DM and AF. EXPERT OPINION : DM is independently associated with new-onset AF, and the coexistence of these two conditions contributes to poor outcomes, from reduced quality of life to increased risks of thromboembolic events, heart failure, and mortality. Despite this strong link, the current evidence is insufficient to recommend routine screening for AF in patients with DM. Although some observations exist on preventing AF with anti-DM medications, randomized controlled trials are warranted to explore the proposed benefits of novel anti-DM medicines in reducing the risk of incident AF.
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Affiliation(s)
- Mehmet Yildiz
- The Carl and Edyth Lindner Center for Research and Education at The Christ Hospital, Cincinnati, OH
| | - Carl J Lavie
- John Ochsner Heart and Vascular Institute, Ochsner Clinical School-The University of Queensland School of Medicine, New Orleans, LA
| | - Daniel P Morin
- John Ochsner Heart and Vascular Institute, Ochsner Clinical School-The University of Queensland School of Medicine, New Orleans, LA
| | - Ahmet Afsin Oktay
- The Heart and Vascular Institute, Rush University Medical Center, Chicago, IL
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Zhao M, Song L, Zhao Q, Chen Y, Li B, Xie Z, Fu Z, Zhang N, Cheng X, Li X, Wang M, Wu S, Xue H, Li Y. Elevated levels of body mass index and waist circumference, but not high variability, are associated with an increased risk of atrial fibrillation. BMC Med 2022; 20:215. [PMID: 35765047 PMCID: PMC9241273 DOI: 10.1186/s12916-022-02413-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 05/23/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Although obesity has been associated with risk of atrial fibrillation (AF), the associations of variability of obesity measures with AF risk are uncertain, and longitudinal studies among Chinese population are still lacking. We aimed to evaluate the impacts of obesity and variability of body mass index (BMI) and waist circumference (WC) on the risk of atrial fibrillation (AF) in a large Chinese cohort study. METHODS A total of 44,135 participants of the Kailuan Study who were free of cancer and cardiovascular disease and underwent three consecutive surveys from 2006 to 2010 were followed for incident AF until 2020. Average BMI and WC over time and variability were calculated. Cox proportional hazards regression models were used to assess hazard ratios (HRs) and 95% confidence intervals (CIs) for the associations of obesity and variability in BMI and WC with AF risk. RESULTS During a mean follow-up of 9.68 years, there were 410 cases of incident AF. In multivariable-adjusted models, compared with normal BMI/WC, individuals with general obesity and abdominal obesity had increased risk of AF, with corresponding HRs of 1.73 (95% CI: 1.31-2.30) and 1.38 (95% CI: 1.11-1.60), respectively. The short-term elevation in AF risk persisted for the obese even after adjustment for updated biologic intermediaries and weight. Variability in BMI and WC were not associated with the risk of AF. The restricted cubic spline models indicated significant linear relationships between levels of WC and BMI and risk of AF. CONCLUSIONS Elevated levels of BMI and WC were associated with an increased risk of AF, whereas variability in BMI and WC were not. Therefore, achieving optimal levels of BMI and WC could be valuable in AF prevention.
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Affiliation(s)
- Maoxiang Zhao
- Department of Cardiology, The First Medical Center, Chinese People's Liberation Army Hospital, Medical School of Chinese People's Liberation Army, Beijing, China
| | - Lulu Song
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qianqian Zhao
- Department of Cardiology, The First Medical Center, Chinese People's Liberation Army Hospital, Medical School of Chinese People's Liberation Army, Beijing, China
| | - Yating Chen
- Department of Cardiology, The First Medical Center, Chinese People's Liberation Army Hospital, Medical School of Chinese People's Liberation Army, Beijing, China
| | - Bin Li
- Department of Cardiology, The First Medical Center, Chinese People's Liberation Army Hospital, Medical School of Chinese People's Liberation Army, Beijing, China
| | - Zhonghui Xie
- Department of Cardiology, The First Medical Center, Chinese People's Liberation Army Hospital, Medical School of Chinese People's Liberation Army, Beijing, China
| | - Zihao Fu
- Department of Cardiology, The First Medical Center, Chinese People's Liberation Army Hospital, Medical School of Chinese People's Liberation Army, Beijing, China
| | - Nan Zhang
- Department of Cardiology, The First Medical Center, Chinese People's Liberation Army Hospital, Medical School of Chinese People's Liberation Army, Beijing, China
| | - Xiaowei Cheng
- Department of Cardiology, The First Medical Center, Chinese People's Liberation Army Hospital, Medical School of Chinese People's Liberation Army, Beijing, China
| | - Xiaoqian Li
- Department of Cardiology, Fujian Medical University, Fuzhou, China
| | - Miao Wang
- School of Medicine, Nankai University, Tianjin, China
| | - Shouling Wu
- Department of Cardiology, Kailuan Hospital, Tangshan, China.
| | - Hao Xue
- Department of Cardiology, the Sixth Medical Center, Chinese People's Liberation Army Hospital, Medical School of Chinese People's Liberation Army, Beijing, China.
| | - Yang Li
- Department of Cardiology, The First Medical Center, Chinese People's Liberation Army Hospital, Medical School of Chinese People's Liberation Army, Beijing, China.
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Masiliūnas R, Dapkutė A, Grigaitė J, Lapė J, Valančius D, Bacevičius J, Katkus R, Vilionskis A, Klimašauskienė A, Ekkert A, Jatužis D. High Prevalence of Atrial Fibrillation in a Lithuanian Stroke Patient Cohort. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:800. [PMID: 35744063 PMCID: PMC9230037 DOI: 10.3390/medicina58060800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 06/10/2022] [Accepted: 06/10/2022] [Indexed: 11/16/2022]
Abstract
Background and Objectives: Atrial fibrillation (AF) is the most common cardiac arrhythmia and is associated with a five-fold increased risk for acute ischemic stroke (AIS). We aimed to estimate the prevalence of AF in a Lithuanian cohort of stroke patients, and its impact on patients regarding case fatality, functional outcome, and health-related quality of life (HRQoL) at 90 days. Materials and Methods: A single-center prospective study was carried out for four non-consecutive months between December 2018 and July 2019 in one of the two comprehensive stroke centers in Eastern Lithuania. A telephone-based follow-up was conveyed at 90 days using the modified Rankin Scale (mRS) and EuroQoL five-dimensional three-level descriptive system (EQ-5D-3L) with a self-rated visual analog scale (EQ-VAS). One-year case fatality was investigated. Results: We included 238 AIS patients with a mean age of 71.4 ± 11.9 years of whom 45.0% were female. A striking 97 (40.8%) AIS patients had a concomitant AF, in 68 (70.1%) of whom the AF was pre-existing. The AIS patients with AF were at a significantly higher risk for a large vessel occlusion (LVO; odds ratio 2.72 [95% CI 1.38−5.49], p = 0.004), and had a more severe neurological impairment at presentation (median NIHSS score (interquartile range): 9 (6−16) vs. 6 (3−9), p < 0.001). The LVO status was only detected in those who had received computed tomography angiography. Fifty-five (80.9%) patients with pre-existing AF received insufficient anticoagulation at stroke onset. All patients received a 12-lead ECG, however, in-hospital 24-h Holter monitoring was only performed in 3.4% of AIS patients without pre-existing AF. Although multivariate analyses found no statistically significant difference in one-year stroke patient survival and favorable functional status (mRS 0−2) at 90 days, when adjusted for age, gender, reperfusion treatment, baseline functional status, and baseline NIHSS, stroke patients with AF had a significantly poorer self-perceived HRQoL, indicated by a lower EQ-VAS score (regression coefficient ± standard error: β = −11.776 ± 4.850, p = 0.017). Conclusions: In our single-center prospective observational study in Lithuania, we found that 40.8% of AIS patients had a concomitant AF, were at a higher risk for an LVO, and had a significantly poorer self-perceived HRQoL at 90 days. Despite the high AF prevalence, diagnostic tools for subclinical AF were greatly underutilized.
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Affiliation(s)
- Rytis Masiliūnas
- Center of Neurology, Vilnius University, 08661 Vilnius, Lithuania; (A.D.); (J.G.); (D.V.); (A.K.); (A.E.); (D.J.)
| | - Austėja Dapkutė
- Center of Neurology, Vilnius University, 08661 Vilnius, Lithuania; (A.D.); (J.G.); (D.V.); (A.K.); (A.E.); (D.J.)
| | - Julija Grigaitė
- Center of Neurology, Vilnius University, 08661 Vilnius, Lithuania; (A.D.); (J.G.); (D.V.); (A.K.); (A.E.); (D.J.)
| | - Jokūbas Lapė
- Faculty of Medicine, Vilnius University, 03101 Vilnius, Lithuania;
| | - Domantas Valančius
- Center of Neurology, Vilnius University, 08661 Vilnius, Lithuania; (A.D.); (J.G.); (D.V.); (A.K.); (A.E.); (D.J.)
| | - Justinas Bacevičius
- Center of Cardiology and Angiology, Vilnius University, 08661 Vilnius, Lithuania; (J.B.); (R.K.)
| | - Rimgaudas Katkus
- Center of Cardiology and Angiology, Vilnius University, 08661 Vilnius, Lithuania; (J.B.); (R.K.)
| | | | - Aušra Klimašauskienė
- Center of Neurology, Vilnius University, 08661 Vilnius, Lithuania; (A.D.); (J.G.); (D.V.); (A.K.); (A.E.); (D.J.)
| | - Aleksandra Ekkert
- Center of Neurology, Vilnius University, 08661 Vilnius, Lithuania; (A.D.); (J.G.); (D.V.); (A.K.); (A.E.); (D.J.)
| | - Dalius Jatužis
- Center of Neurology, Vilnius University, 08661 Vilnius, Lithuania; (A.D.); (J.G.); (D.V.); (A.K.); (A.E.); (D.J.)
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Proietti M, Romiti GF, Raparelli V, Diemberger I, Boriani G, Dalla Vecchia LA, Bellelli G, Marzetti E, Lip GY, Cesari M. Frailty prevalence and impact on outcomes in patients with atrial fibrillation: A systematic review and meta-analysis of 1,187,000 patients. Ageing Res Rev 2022; 79:101652. [PMID: 35659945 DOI: 10.1016/j.arr.2022.101652] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/20/2022] [Accepted: 05/23/2022] [Indexed: 12/14/2022]
Abstract
Frailty is a clinical syndrome characterized by a reduced physiologic reserve, increased vulnerability to stressors and an increased risk of adverse outcomes. People with atrial fibrillation (AF) are often burdened by frailty due to biological, clinical, and social factors. The prevalence of frailty, its management and association with major outcomes in AF patients are still not well quantified. We systematically searched PubMed and EMBASE, from inception to September 13th, 2021, for studies reporting the prevalence of frailty in AF patients. The study was registered in PROSPERO (CRD42021235854). 33 studies were included in the systematic review (n = 1,187,651 patients). The frailty pooled prevalence was 39.7 % (95 %CI=29.9 %-50.5 %, I2 =100 %), while meta-regression analyses showed it is influenced by age, history of stroke, and geographical location. Meta-regression analyses showed that OAC prescription was influenced by study-level mean age, baseline thromboembolic risk, and study setting. Frail AF patients were associated with a higher risk of all-cause death (OR=5.56, 95 %CI=3.46-8.94), ischemic stroke (OR=1.59, 95 %CI=1.00-2.52), and bleeding (OR=1.64, 95 %CI=1.11-2.41), when compared to robust individuals. In this systematic review and meta-analysis, the prevalence of frailty was high in patients with AF. Frailty may influence the prognosis and management of AF patients, thus requiring person-tailored interventions in a holistic or integrated approach to AF care.
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Affiliation(s)
- Marco Proietti
- Geriatric Unit, IRCCS Istituti Clinici Scientifici Maugeri, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Italy; Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, United Kingdom.
| | | | - Valeria Raparelli
- Department of Translational Medicine, University of Ferrara, Italy; University Center for Studies on Gender Medicine, University of Ferrara, Italy; University of Alberta, Faculty of Nursing, Edmonton, Alberta, Canada
| | - Igor Diemberger
- Department of Experimental, Diagnostic and Specialty Medicine, Institute of Cardiology, University of Bologna, Policlinico S. Orsola-Malpighi, Bologna, Italy
| | - Giuseppe Boriani
- Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Policlinico di Modena, Italy
| | | | - Giuseppe Bellelli
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy; Acute Geriatrics Unit, San Gerardo Hospital ASST Monza, Monza, Italy
| | - Emanuele Marzetti
- Università Cattolica del Sacro Cuore, Department of Geriatrics and Orthopedics, Rome, Italy; Center for Geriatric Medicine (Ce.M.I.), Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome,Italy
| | - Gregory Yh Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, United Kingdom; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Matteo Cesari
- Geriatric Unit, IRCCS Istituti Clinici Scientifici Maugeri, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Italy
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OUP accepted manuscript. Cardiovasc Res 2022; 118:1613-1614. [DOI: 10.1093/cvr/cvac044] [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: 03/09/2022] [Accepted: 03/14/2022] [Indexed: 11/14/2022] Open
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