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Xu SD, Hao LL, Liu FF, Xu CZ. Association between obstructive sleep apnea and arrhythmia and heart rate variability among hypertensive patients. BMC Cardiovasc Disord 2024; 24:338. [PMID: 38965474 PMCID: PMC11223273 DOI: 10.1186/s12872-024-04008-5] [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: 04/17/2024] [Accepted: 06/24/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND The relationship between obstructive sleep apnea (OSA) and the occurrence of arrhythmias and heart rate variability (HRV) in hypertensive patients is not elucidated. Our study investigates the association between OSA, arrhythmias, and HRV in hypertensive patients. METHODS We conducted a cross-sectional analysis involving hypertensive patients divided based on their apnea-hypopnea index (AHI) into two groups: the AHI ≤ 15 and the AHI > 15. All participants underwent polysomnography (PSG), 24-hour dynamic electrocardiography (DCG), cardiac Doppler ultrasound, and other relevant evaluations. RESULTS The AHI > 15 group showed a significantly higher prevalence of frequent atrial premature beats and atrial tachycardia (P = 0.030 and P = 0.035, respectively) than the AHI ≤ 15 group. Time-domain analysis indicated that the standard deviation of normal-to-normal R-R intervals (SDNN) and the standard deviation of every 5-minute normal-to-normal R-R intervals (SDANN) were significantly higher in the AHI > 15 group (P = 0.020 and P = 0.033, respectively). Frequency domain analysis revealed that the low-frequency (LF), high-frequency (HF) components, and the LF/HF ratio were also significantly elevated in the AHI > 15 group (P < 0.001, P = 0.031, and P = 0.028, respectively). Furthermore, left atrial diameter (LAD) was significantly larger in the AHI > 15 group (P < 0.001). Both univariate and multivariable linear regression analyses confirmed a significant association between PSG-derived independent variables and the dependent HRV parameters SDNN, LF, and LF/HF ratio (F = 8.929, P < 0.001; F = 14.832, P < 0.001; F = 5.917, P = 0.016, respectively). CONCLUSIONS Hypertensive patients with AHI > 15 are at an increased risk for atrial arrhythmias and left atrial dilation, with HRV significantly correlating with OSA severity.
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MESH Headings
- Humans
- Sleep Apnea, Obstructive/physiopathology
- Sleep Apnea, Obstructive/diagnosis
- Sleep Apnea, Obstructive/epidemiology
- Sleep Apnea, Obstructive/complications
- Heart Rate
- Male
- Female
- Cross-Sectional Studies
- Middle Aged
- Hypertension/physiopathology
- Hypertension/diagnosis
- Hypertension/epidemiology
- Arrhythmias, Cardiac/physiopathology
- Arrhythmias, Cardiac/diagnosis
- Arrhythmias, Cardiac/epidemiology
- Arrhythmias, Cardiac/etiology
- Polysomnography
- Aged
- Risk Factors
- Prevalence
- Electrocardiography, Ambulatory
- Adult
- Time Factors
- Echocardiography, Doppler
- Atrial Premature Complexes/physiopathology
- Atrial Premature Complexes/diagnosis
- Atrial Premature Complexes/epidemiology
- Risk Assessment
- Severity of Illness Index
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Affiliation(s)
- Shao-Dong Xu
- Department of Cardiology, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, 230001, China.
| | - Ling-Li Hao
- Department of Sleep Monitoring Center, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, 230001, China
| | - Fei-Fei Liu
- Department of Sleep Monitoring Center, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, 230001, China
| | - Chuan-Zhi Xu
- Department of Electrocardiogram, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, 230001, China
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Li T, Rong L, Gao Y, Cheng W. The causal relationship between obesity, obstructive sleep apnea and atrial fibrillation: a study based on mediated Mendelian randomization. Front Cardiovasc Med 2024; 11:1406192. [PMID: 38707891 PMCID: PMC11066229 DOI: 10.3389/fcvm.2024.1406192] [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: 03/24/2024] [Accepted: 04/08/2024] [Indexed: 05/07/2024] Open
Abstract
Background Atrial fibrillation (AF) is a common cardiac arrhythmia that is associated with obesity and obstructive sleep apnea syndrome (OSA). Obesity and OSA may increase the risk of AF by affecting cardiovascular health. Methods The study used the Mendelian randomization (MR) approach, combined with two-sample and multivariable analyses, to assess the relationships between obesity, OSA, and AF. The study utilized GWAS data and applied various statistical methods for the analysis. Results The study found that obesity increased the risk of OSA, which in turn significantly increased the risk of AF. Through mediating MR analysis, it was found that OSA played a certain role in the causal relationship between obesity and AF, with about 6.4% of the risk of AF being mediated by OSA. Conclusion This study highlights the relationships among obesity, OSA, and AF, providing useful guidance for future clinical researches.
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Affiliation(s)
| | | | | | - Wei Cheng
- Department of Cardiology, Anhui No.2 Provincial People's Hospital, Hefei, Anhui, China
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3
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Holtstrand Hjälm H, Thunström E, Glantz H, Karlsson M, Celik Y, Peker Y. Obstructive sleep apnea severity and prevalent atrial fibrillation in a sleep clinic cohort with versus without excessive daytime sleepiness. Sleep Med 2023; 112:63-69. [PMID: 37806037 DOI: 10.1016/j.sleep.2023.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 10/10/2023]
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is associated with atrial fibrillation (AF) in cardiac cohorts. Less is known regarding the magnitude of this association in a sleep clinic cohort with vs. without excessive daytime sleepiness (EDS). OBJECTIVES To explore the association of OSA severity with AF in a sleep clinic cohort stratified by EDS. PATIENTS AND METHODS All consecutive adults (n = 3814) admitted to the Skaraborg Hospital, Sweden between Jan 2005 and December 2011 were registered in a local database, and the follow-up ended in December 2018. OSA was defined as an apnea-hypopnea index (AHI) ≥5 events/h. Mild OSA was defined as AHI ≥5 & AHI<15 events/h; moderate OSA as AHI ≥15 & AHI<30 events/h; and severe OSA as AHI ≥30 events/h. EDS was defined as an Epworth Sleepiness Scale score ≥11. We conducted cross-sectional analyzes of the prevalent AF across the OSA severity categories and logistic regression analyzes stratified by EDS. RESULTS In all, 202 patients (5.3%) had AF at baseline, 1.6% in no-OSA, 3.9% in mild OSA, 5.2% in moderate OSA, and 7.6% in severe OSA, respectively (p < 0.001). The stratified analyzes revealed that patients with severe OSA without EDS had an increased risk for prevalent AF (OR 2.54, 95% CI 1.05-6.16; p = 0.039) independent of the confounding factors. CONCLUSIONS There was an independent dose-response relationship between OSA and prevalent AF among the non-sleepy phenotype in this sleep clinic cohort. Since adherence to OSA treatment is challenging in the absence of EDS, these patients may have increased risk for adverse cardiovascular outcomes.
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Affiliation(s)
- Henrik Holtstrand Hjälm
- Department of Molecular and Clinical Medicine/Cardiology, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Erik Thunström
- Department of Molecular and Clinical Medicine/Cardiology, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Helena Glantz
- Department of Internal Medicine, Skaraborg Hospital, Lidköping, Sweden
| | - Martin Karlsson
- Department of Internal Medicine, Skaraborg Hospital, Lidköping, Sweden
| | - Yeliz Celik
- Department of Pulmonary Medicine, Koc University School of Medicine & Koc University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey
| | - Yüksel Peker
- Department of Molecular and Clinical Medicine/Cardiology, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Pulmonary Medicine, Koc University School of Medicine & Koc University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey; Division of Sleep and Circadian Disorders, Brigham and Women's Hospital & Harvard Medical School, Boston, MA, USA; Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Clinical Sciences, Respiratory Medicine and Allergology, Faculty of Medicine, Lund University, Lund, Sweden
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Shen J, Liang J, Rejiepu M, Yuan P, Xiang J, Guo Y, Xiaokereti J, Zhang L, Tang B. Identification of a Novel Target Implicated in Chronic Obstructive Sleep Apnea-Related Atrial Fibrillation by Integrative Analysis of Transcriptome and Proteome. J Inflamm Res 2023; 16:5677-5695. [PMID: 38050561 PMCID: PMC10693830 DOI: 10.2147/jir.s438701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/21/2023] [Indexed: 12/06/2023] Open
Abstract
Objective This study aimed to identify a newly identified target involved in atrial fibrillation (AF) linked to chronic obstructive sleep apnea (COSA) through an integrative analysis of transcriptome and proteome. Methods Fifteen beagle canines were randomly assigned to three groups: control (CON), obstructive sleep apnea (OSA), and OSA with superior left ganglionated plexi ablation (OSA+GP). A COSA model was established by intermittently obstructing the endotracheal cannula during exhalation for 12 weeks. Left parasternal thoracotomy through the fourth intercostal space allowed for superior left ganglionated plexi (SLGP) ablation. In vivo open-chest electrophysiological programmed stimulation was performed to assess AF inducibility. Histological, transcriptomic, and proteomic analyses were conducted on atrial samples. Results After 12 weeks, the OSA group exhibited increased AF inducibility and longer AF durations compared to the CON group. Integrated transcriptomic and proteomic analyses identified 2422 differentially expressed genes (DEGs) and 1194 differentially expressed proteins (DEPs) between OSA and CON groups, as well as between OSA+GP and OSA groups (1850 DEGs and 1418 DEPs). The analysis revealed that differentially regulated DEGs were primarily enriched in mitochondrial biological processes in the CON-vs.-OSA and OSA-vs.-GP comparisons. Notably, the key regulatory molecule GSTZ1 was activated in OSA and inhibited by GP ablation. Conclusion These findings suggest that GSTZ1 may play a pivotal role in mitochondrial damage, triggering AF substrate formation, and increasing susceptibility to AF in the context of COSA.
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Affiliation(s)
- Jun Shen
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
| | - Junqing Liang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
| | - Manzeremu Rejiepu
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
| | - Ping Yuan
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, People’s Republic of China
| | - Jie Xiang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
| | - Yankai Guo
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
| | - Jiasuoer Xiaokereti
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
| | - Ling Zhang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
| | - Baopeng Tang
- Xinjiang Key Laboratory of Cardiac Electrophysiology and Cardiac Remodeling, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
- Cardiac Pacing and Electrophysiology Department, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China
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Ramos-Mondragón R, Lozhkin A, Vendrov AE, Runge MS, Isom LL, Madamanchi NR. NADPH Oxidases and Oxidative Stress in the Pathogenesis of Atrial Fibrillation. Antioxidants (Basel) 2023; 12:1833. [PMID: 37891912 PMCID: PMC10604902 DOI: 10.3390/antiox12101833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/26/2023] [Accepted: 09/29/2023] [Indexed: 10/29/2023] Open
Abstract
Atrial fibrillation (AF) is the most common type of cardiac arrhythmia and its prevalence increases with age. The irregular and rapid contraction of the atria can lead to ineffective blood pumping, local blood stasis, blood clots, ischemic stroke, and heart failure. NADPH oxidases (NOX) and mitochondria are the main sources of reactive oxygen species in the heart, and dysregulated activation of NOX and mitochondrial dysfunction are associated with AF pathogenesis. NOX- and mitochondria-derived oxidative stress contribute to the onset of paroxysmal AF by inducing electrophysiological changes in atrial myocytes and structural remodeling in the atria. Because high atrial activity causes cardiac myocytes to expend extremely high energy to maintain excitation-contraction coupling during persistent AF, mitochondria, the primary energy source, undergo metabolic stress, affecting their morphology, Ca2+ handling, and ATP generation. In this review, we discuss the role of oxidative stress in activating AF-triggered activities, regulating intracellular Ca2+ handling, and functional and anatomical reentry mechanisms, all of which are associated with AF initiation, perpetuation, and progression. Changes in the extracellular matrix, inflammation, ion channel expression and function, myofibril structure, and mitochondrial function occur during the early transitional stages of AF, opening a window of opportunity to target NOX and mitochondria-derived oxidative stress using isoform-specific NOX inhibitors and mitochondrial ROS scavengers, as well as drugs that improve mitochondrial dynamics and metabolism to treat persistent AF and its transition to permanent AF.
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Affiliation(s)
- Roberto Ramos-Mondragón
- Department of Pharmacology, University of Michigan, 1150 West Medical Center Drive, 2301 Medical Science Research Building III, Ann Arbor, MI 48109, USA; (R.R.-M.); (L.L.I.)
| | - Andrey Lozhkin
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI 48019, USA; (A.L.); (A.E.V.); (M.S.R.)
| | - Aleksandr E. Vendrov
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI 48019, USA; (A.L.); (A.E.V.); (M.S.R.)
| | - Marschall S. Runge
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI 48019, USA; (A.L.); (A.E.V.); (M.S.R.)
| | - Lori L. Isom
- Department of Pharmacology, University of Michigan, 1150 West Medical Center Drive, 2301 Medical Science Research Building III, Ann Arbor, MI 48109, USA; (R.R.-M.); (L.L.I.)
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Nageswara R. Madamanchi
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI 48019, USA; (A.L.); (A.E.V.); (M.S.R.)
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Rebecchi M, Fanisio F, Rizzi F, Politano A, De Ruvo E, Crescenzi C, Panattoni G, Squeglia M, Martino A, Sasso S, Golia P, Pugliese G, Del Gigante S, Giamundo D, Desimone P, Grieco D, De Luca L, Giordano I, Barillà F, Perrone MA, Calò L, Iellamo F. The Autonomic Coumel Triangle: A New Way to Define the Fascinating Relationship between Atrial Fibrillation and the Autonomic Nervous System. Life (Basel) 2023; 13:life13051139. [PMID: 37240784 DOI: 10.3390/life13051139] [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: 04/10/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Arrhythmogenic substrate, modulating factors, and triggering factors (the so-called Coumel's triangle concept) play a primary role in atrial fibrillation (AF) pathophysiology. Several years have elapsed since Coumel and co-workers advanced the concept of the relevance of autonomic nervous system (ANS) influences on atrial cells' electrophysiological characteristics. The ANS is not only associated with cardiac rhythm regulation but also exerts an important role in the triggering and maintenance of atrial fibrillation. This review aims to describe in detail the autonomic mechanisms involved in the pathophysiology of atrial fibrillation (AF), starting from the hypothesis of an "Autonomic Coumel Triangle" that stems from the condition of the fundamental role played by the ANS in all phases of the pathophysiology of AF. In this article, we provide updated information on the biomolecular mechanisms of the ANS role in Coumel's triangle, with the molecular pathways of cardiac autonomic neurotransmission, both adrenergic and cholinergic, and the interplay between the ANS and cardiomyocytes' action potential. The heterogeneity of the clinical spectrum of the ANS and AF, with the ANS playing a relevant role in situations that may promote the initiation and maintenance of AF, is highlighted. We also report on drug, biological, and gene therapy as well as interventional therapy. On the basis of the evidence reviewed, we propose that one should speak of an "Autonomic Coumel's Triangle" instead of simply "Coumel's Triangle".
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Affiliation(s)
- Marco Rebecchi
- Division of Cardiology, PoliclinicoCasilino, 00169 Rome, Italy
| | | | - Fabio Rizzi
- Division of Cardiology, PoliclinicoCasilino, 00169 Rome, Italy
| | | | | | | | | | | | | | - Stefano Sasso
- Department of Systems Medicine, University Tor Vergata, 00133 Rome, Italy
| | - Paolo Golia
- Division of Cardiology, PoliclinicoCasilino, 00169 Rome, Italy
| | - Giulia Pugliese
- Department of Systems Medicine, University Tor Vergata, 00133 Rome, Italy
| | - Sofia Del Gigante
- Department of Systems Medicine, University Tor Vergata, 00133 Rome, Italy
| | - Domenico Giamundo
- Department of Systems Medicine, University Tor Vergata, 00133 Rome, Italy
| | - Pietro Desimone
- Department of Systems Medicine, University Tor Vergata, 00133 Rome, Italy
| | - Domenico Grieco
- Division of Cardiology, PoliclinicoCasilino, 00169 Rome, Italy
| | - Lucia De Luca
- Division of Cardiology, PoliclinicoCasilino, 00169 Rome, Italy
| | - Ignazio Giordano
- Department of Systems Medicine, University Tor Vergata, 00133 Rome, Italy
| | - Francesco Barillà
- Department of Systems Medicine, University Tor Vergata, 00133 Rome, Italy
| | - Marco Alfonso Perrone
- Department of Clinical Science and Translational Medicine, University Tor Vergata, 00133 Rome, Italy
| | - Leonardo Calò
- Division of Cardiology, PoliclinicoCasilino, 00169 Rome, Italy
| | - Ferdinando Iellamo
- Department of Clinical Science and Translational Medicine, University Tor Vergata, 00133 Rome, Italy
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Gottlieb LA, Coronel R, Dekker LRC. Reduction in atrial and pulmonary vein stretch as a therapeutic target for prevention of atrial fibrillation. Heart Rhythm 2023; 20:291-298. [PMID: 36265692 DOI: 10.1016/j.hrthm.2022.10.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 09/21/2022] [Accepted: 10/05/2022] [Indexed: 11/04/2022]
Abstract
Atrial fibrillation (AF) is a common cardiac arrhythmia that is associated with increased mortality. Heart failure, hypertension, valvular disease, and obstructive sleep apnea are risk factors for incident AF. A common characteristic of these diseases is that they increase atrial wall stretch. Multiple experimental studies confirm a proarrhythmic effect of atrial stretch. Conversely, a reduction in stretch is antiarrhythmic. A therapeutic target for AF, therefore, lies in local reduction of atrial stretch. This review focuses on atrial stretch and its clinical associations in patients with AF and its downstream effects on electrophysiology. We discuss the possible application of targeted atrial stretch reduction in AF prevention. We conclude that a reduction in local atrial stretch should be considered an essential element in rhythm control.
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Affiliation(s)
- Lisa A Gottlieb
- Department of Cardiology, University Hospital Copenhagen - Bispebjerg, Copenhagen, Denmark; AUMC, location Academic Medical Centre, Department of Experimental Cardiology, Amsterdam, The Netherlands; IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France
| | - Ruben Coronel
- AUMC, location Academic Medical Centre, Department of Experimental Cardiology, Amsterdam, The Netherlands; IHU Liryc, Electrophysiology and Heart Modeling Institute, University of Bordeaux, Bordeaux, France.
| | - Lukas R C Dekker
- Department of Biomedical Engineering, Eindhoven University of Technology, The Netherlands
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8
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Brilliant J, Yadav R, Akhtar T, Calkins H, Trayanova N, Spragg D. Clinical and Structural Factors Affecting Ablation Outcomes in Atrial Fibrillation Patients - A Review. Curr Cardiol Rev 2023; 19:83-96. [PMID: 36999694 PMCID: PMC10518883 DOI: 10.2174/1573403x19666230331103153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 01/16/2023] [Accepted: 02/02/2023] [Indexed: 04/01/2023] Open
Abstract
Catheter ablation is an effective and durable treatment option for patients with atrial fibrillation (AF). Ablation outcomes vary widely, with optimal results in patients with paroxysmal AF and diminishing results in patients with persistent or long-standing persistent AF. A number of clinical factors including obesity, hypertension, diabetes, obstructive sleep apnea, and alcohol use contribute to AF recurrence following ablation, likely through modulation of the atrial electroanatomic substrate. In this article, we review the clinical risk factors and the electro-anatomic features that contribute to AF recurrence in patients undergoing ablation for AF.
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Affiliation(s)
- Justin Brilliant
- Division of Cardiology, Johns Hopkins Hospital, Baltimore, MD 21287, United States
| | - Ritu Yadav
- Division of Cardiology, Johns Hopkins Hospital, Baltimore, MD 21287, United States
| | - Tauseef Akhtar
- Division of Cardiology, Johns Hopkins Hospital, Baltimore, MD 21287, United States
| | - Hugh Calkins
- Division of Cardiology, Johns Hopkins Hospital, Baltimore, MD 21287, United States
| | - Natalia Trayanova
- Division of Cardiology, Johns Hopkins Hospital, Baltimore, MD 21287, United States
| | - David Spragg
- Division of Cardiology, Johns Hopkins Hospital, Baltimore, MD 21287, United States
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9
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Chen Z, Zhang R, Hu X, Wan C, Shen Y, Qin J, Gao L, Zhu J. Impact of sleep disordered breathing on postoperative atrial fibrillation in patients who underwent cardiac surgery: a meta-analysis. Ann Med 2022; 54:3177-3188. [PMID: 36351877 PMCID: PMC9661984 DOI: 10.1080/07853890.2022.2143555] [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: 11/11/2022] Open
Abstract
Objective: An increasing number of studies suggest that sleep disordered breathing (SDB) may be associated with postoperative atrial fibrillation (POAF), but these studies present discrepant results. Thus, this meta-analysis aimed to synthesize the data associating SDB with POAF in patients who underwent cardiac surgery.Methods: A literature search was performed in the Scopus, PubMed, Web of Science, EMBASE, CENTRAL, Weipu, Wanfang Data, and China National Knowledge Infrastructure databases before August 2022. Data were extracted, and the strength of the relationship between SDB and the risk of POAF was evaluated using odds ratio (OR) and 95% confidence intervals (CIs). All statistical analysis was carried out using the Stata 12.0 software.Results: A total of 24 studies with 660,685 subjects were included in current meta-analysis. SDB was significantly associated with the risk of POAF in the patients who underwent cardiac surgery (OR = 1.49; 95% CI, 1.30-1.70; p < .001). Next subgroup analysis revealed that such association may be increased in the group with medical equipment-measured SDB (OR = 2.27; 95% CI, 1.59-3.23; p < .001), prospective studies (OR = 2.17; 95% CI, 1.55-3.03; p < .001), patients without a previous history of atrial fibrillation (OR = 2.04; 95% CI, 1.47-2.82; p < .001), and patients who received a coronary artery bypass graft (OR = 2.10; 95% CI, 1.45-3.05; p < .001). No publication bias was identified.Conclusion: The results of meta-analysis support that SDB may be associated with an increased risk of POAF in patients who had undergone cardiac surgery, and these results should be confirmed in more rigorously designed studies.KEY MESSAGESPatients with SDB who underwent cardiac surgery showed increased risk of POAF.The relationship between SDB and POAF should be explained with caution with the consideration of various covariate.The effect of pre-treatment of SDB on POAF should be examined in future.
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Affiliation(s)
- Zhenni Chen
- West China School of Medicine/West China Hospital of Sichuan University and West China Tianfu Hospital of Sichuan University, Chengdu, China
| | - Rui Zhang
- Information Center, West China Hospital of Sichuan University, Chengdu, China
| | - Xueru Hu
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Chun Wan
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Yongchun Shen
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Jiangyue Qin
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Lijuan Gao
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Jing Zhu
- Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, China
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10
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Ifedili I, Ingram E, Blount C, Kayali S, Heckle M, Levine YC. Vagal milieu or electrophysiologic substrate? The link between atrial fibrillation and obstructive sleep apnea. Exp Biol Med (Maywood) 2022; 247:1827-1832. [PMID: 36112833 PMCID: PMC9679354 DOI: 10.1177/15353702221120289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Atrial fibrillation is the most common cardiac arrhythmia with its prevalence expected to increase to 12.1 million people in the United States by 2030. Chronic underlying conditions that affect the heart and lungs predispose patients to develop atrial fibrillation. Obstructive sleep apnea is strongly associated with atrial fibrillation. Several pathophysiological mechanisms have been proposed to elucidate this relationship which includes electrophysiological substrate modification and the contribution of the autonomic nervous system. In this comprehensive review, we highlight important relationships and plausible causality between obstructive sleep apnea and atrial fibrillation which will improve our understanding in the evaluation, management, and prevention of atrial fibrillation. This is the most updated comprehensive review of the relationship between obstructive sleep apnea and atrial fibrillation.
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Affiliation(s)
- Ikechukwu Ifedili
- Division of Cardiovascular Diseases, Department of Internal Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Eva Ingram
- Department of Internal Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Courtland Blount
- Department of Internal Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Sharif Kayali
- Department of Internal Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Mark Heckle
- Division of Cardiovascular Diseases, Department of Internal Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA,Methodist Le Bonheur Healthcare, Memphis, TN 38104, USA
| | - Yehoshua C Levine
- Division of Cardiovascular Diseases, Department of Internal Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA,Methodist Le Bonheur Healthcare, Memphis, TN 38104, USA,Yehoshua C Levine.
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11
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Linz B, Hertel JN, Jespersen T, Linz D. Mechanisms and therapeutic opportunities in atrial fibrillation in relationship to alcohol use and abuse. Can J Cardiol 2022; 38:1352-1363. [DOI: 10.1016/j.cjca.2022.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/21/2022] [Accepted: 04/01/2022] [Indexed: 12/24/2022] Open
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12
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Linz D, Norup Hertel J, Hendriks J, Saljic A, Dobrev D, Baumert M, Jespersen T, Linz D. Sleep apnea and atrial fibrillation: challenges in clinical and translational research. Expert Rev Cardiovasc Ther 2022; 20:101-109. [PMID: 35094618 DOI: 10.1080/14779072.2022.2036606] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Sleep-disordered breathing (SDB) is present in 21-74% of all patients with atrial fibrillation (AF). Treatment of SDB by positive airway pressure may help to prevent recurrence of AF after electrical cardioversion and help to improve AF ablation success rates in non-randomized studies. AREAS COVERED In this review, the current understanding of the atrial arrhythmogenic pathophysiology of SDB is summarized, and diagnostic and therapeutic challenges in AF patients are discussed. Current international recommendations are presented, and a comprehensive literature search is undertaken. EXPERT OPINION AF patients with SDB rarely report SDB-related symptoms such as daytime sleepiness. Therefore, systematic home sleep testing evaluation should be considered for all patients eligible for rhythm control strategy. A close interdisciplinary collaboration between the electrophysiologist/cardiologist, nurses and sleep-specialists are required for the management of SDB in AF patients. An arrhythmia-orientated assessment of SDB may better quantify SDB-related AF risk in an individual patient and may help to better guide targeted and personalized SDB treatment in AF patients as a component of rhythm and symptom control strategies. Finally, randomized controlled trials are needed to confirm the relationship between SDB and AF, and the benefits of routine testing and treatment of SDB in AF patients.
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Affiliation(s)
- Dominik Linz
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Julie Norup Hertel
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jeroen Hendriks
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia.,Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, The Netherlands
| | - Arnela Saljic
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Institute of Pharmacology, West German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany
| | - Dobromir Dobrev
- Institute of Pharmacology, West German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany.,Department of Medicine, Montreal Heart Institute and Université de Montréal, Montréal, Québec, Canada.,Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX, USA
| | - Mathias Baumert
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia
| | - Thomas Jespersen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Dominik Linz
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia.,Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, The Netherlands.,Department of Cardiology, Radboud University Medical Centre, Nijmegen, The Netherlands
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13
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Obstructive Sleep Apnea and Arrhythmias in the Elderly. CURRENT SLEEP MEDICINE REPORTS 2021. [DOI: 10.1007/s40675-021-00212-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Desteghe L, Hendriks JML, Heidbuchel H, Potpara TS, Lee GA, Linz D. Obstructive sleep apnoea testing and management in atrial fibrillation patients: a joint survey by the European Heart Rhythm Association (EHRA) and the Association of Cardiovascular Nurses and Allied Professions (ACNAP). Europace 2021; 23:1677-1684. [PMID: 34000040 DOI: 10.1093/europace/euab109] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 04/02/2021] [Indexed: 11/13/2022] Open
Abstract
Obstructive sleep apnoea (OSA) is highly prevalent in atrial fibrillation (AF) patients and associated with reduced response to rhythm control strategies. However, there is no practical guidance on testing for OSA in AF patients and for OSA treatment implementation. We sought to evaluate current practices and identify challenges of OSA management in AF. A descriptive cross-sectional study was performed with a content-validated survey to evaluate OSA management in AF by healthcare practitioners. Survey review, editing, and dissemination occurred via the European Heart Rhythm Association and the Association of Cardiovascular Nursing and Allied Professions and direct contact with arrhythmia centres. In total, 186 responses were collected. OSA-related symptoms were ranked as the most important reason to test for OSA in AF patients. The majority (67.7%) indicated that cardiologists perform 'ad-hoc' referrals. Only 11.3% initiated systematic testing by home sleep test or respiratory polygraphy and in addition, 10.8% had a structured OSA assessment pathway in place at the cardiology department. Only 6.7% of the respondents indicated that they test >70% of their AF patients for OSA as a component of rhythm control therapy. Various barriers were reported: no established collaboration between cardiology and sleep clinic (35.6%); lack in skills and knowledge (23.6%); lack of financial (23.6%) and personnel-related resources (21.3%). Structured testing for OSA occurs in the minority of AF patients. Centres apply varying methods. There is an urgent need for increased awareness and standardized pathways to allow OSA testing and treatment integration in the management of AF.
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Affiliation(s)
- Lien Desteghe
- Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.,Heart Centre Hasselt, Jessa Hospital, Hasselt, Belgium.,Research Group Cardiovascular Diseases, University of Antwerp, Antwerp, Belgium.,Department of Cardiology, Antwerp University Hospital, Drie Eikenstraat 655, 2650 Edegem, Belgium
| | - Jeroen M L Hendriks
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, Australia.,Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia
| | - Hein Heidbuchel
- Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.,Research Group Cardiovascular Diseases, University of Antwerp, Antwerp, Belgium.,Department of Cardiology, Antwerp University Hospital, Drie Eikenstraat 655, 2650 Edegem, Belgium
| | - Tatjana S Potpara
- Cardiology Clinic, Clinical Centre of Serbia, Belgrade, Serbia.,School of Medicine, Belgrade University, Belgrade, Serbia
| | - Geraldine A Lee
- Florence Nightingale Faculty of Nursing, Midwifery & Palliative Care, Kings College London, London, UK
| | - Dominik Linz
- Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia.,Department of Cardiology, Maastricht University Medical Centre, Maastricht, The Netherlands.,Department of Cardiology, Radboud University Medical Centre, Nijmegen, The Netherlands.,Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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15
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Li X, Zhou X, Xu X, Dai J, Chen C, Ma L, Li J, Mao W, Zhu M. Effects of continuous positive airway pressure treatment in obstructive sleep apnea patients with atrial fibrillation: A meta-analysis. Medicine (Baltimore) 2021; 100:e25438. [PMID: 33847645 PMCID: PMC8051983 DOI: 10.1097/md.0000000000025438] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 02/25/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is correlated with atrial fibrillation (AF). Over the past decade, there has been an increasing interest in the relationship between OSA with continuous positive airway pressure (CPAP) and progression or recurrence of AF. METHODS This investigation was an analysis of studies searched in the Cochrane Library, PubMed, EMBASE, EBSCO, OVID, and Web of Science databases from inception to July 2020 to evaluate the recurrence or progression of AF in CPAP users, CPAP nonusers, and patients without OSA. RESULTS Nine studies with 14,812 patients were recruited. CPAP therapy reduced the risk of AF recurrence or progression by 63% in a random-effects model (24.8% vs 40.5%, risk ratio [RR] = 0.70, 95% confidence interval [CI] = 0.57-0.85, P = .035). Compared with non-OSA patients, AF recurrence or progression was much higher in CPAP nonusers (40.6% vs 21.1%, RR = 1.70, 95% CI = 1.19-2.43, P = .000). However, AF recurrence or progression in the CPAP group was similar to that in the non-OSA group (24.0% vs 21.1%, RR = 1.13, 95% CI = 0.87-1.47, P = .001). Begg correlation test and Egger regression test revealed no publication bias in this analysis. CONCLUSIONS OSA is a salient factor in the progression or recurrence of AF. CPAP therapy for OSA may contribute to reduction of AF in patients for whom radiofrequency ablation or direct current cardioversion is not performed. TRIAL REGISTRATION The protocol for this meta-analysis was registered on PROSPERO with a registration No. CRD42019135229.
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Affiliation(s)
- Xinyao Li
- Department of Cardiology, First Affiliated Hospital of Zhejiang Chinese Medical University
- Department of Cardiology, Zhejiang Hospital, Hangzhou, China
| | - Xinbin Zhou
- Department of Cardiology, First Affiliated Hospital of Zhejiang Chinese Medical University
| | - Xiaoming Xu
- Department of Cardiology, First Affiliated Hospital of Zhejiang Chinese Medical University
| | - Jin Dai
- Department of Cardiology, First Affiliated Hospital of Zhejiang Chinese Medical University
| | - Chen Chen
- Department of Cardiology, First Affiliated Hospital of Zhejiang Chinese Medical University
| | - Lan Ma
- Department of Cardiology, First Affiliated Hospital of Zhejiang Chinese Medical University
| | - Jiaying Li
- Department of Cardiology, First Affiliated Hospital of Zhejiang Chinese Medical University
| | - Wei Mao
- Department of Cardiology, First Affiliated Hospital of Zhejiang Chinese Medical University
| | - Min Zhu
- Department of Cardiology, First Affiliated Hospital of Zhejiang Chinese Medical University
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16
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Continuous Positive Airway Pressure Tames the Heart. Ann Am Thorac Soc 2021; 17:642-645. [PMID: 32356693 DOI: 10.1513/annalsats.201911-850cc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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17
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Schütz SG, Dunn A, Braley TJ, Pitt B, Shelgikar AV. New frontiers in pharmacologic obstructive sleep apnea treatment: A narrative review. Sleep Med Rev 2021; 57:101473. [PMID: 33853035 DOI: 10.1016/j.smrv.2021.101473] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 12/22/2022]
Abstract
Obstructive sleep apnea (OSA) is the most common form of sleep-disordered breathing characterized by intermittent partial or complete closure of the upper airway during sleep. If left untreated, OSA is associated with adverse cardiovascular outcomes such as hypertension, coronary heart disease, heart failure, cardiac arrhythmia, stroke, and death. Positive airway pressure (PAP) is often considered the first-line treatment for OSA. While PAP can be very effective in reducing the number of obstructive apneas and hypopneas, its impact on prevention of adverse cardiovascular consequences remains controversial, and treatment adherence is often poor. Hence, the necessity for novel treatment options to help those who cannot adhere to positive airway pressure treatment. Different classes of medications have been tested with regards to their effect on OSA severity. This review 1) provides an update on the epidemiology and pathophysiology of OSA, 2) outlines the mechanistic rationale for medication classes tested as OSA treatment and 3) discusses the effects of these medications on OSA. Several wake-promoting medications are approved for management of persistent sleepiness despite OSA treatment; discussion of these symptomatic treatments is outside the scope of this review. Herein, the authors review the current evidence for pharmacological management of OSA and provide future directions.
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Affiliation(s)
- Sonja G Schütz
- Department of Neurology Sleep Disorders Center, University of Michigan Ann Arbor, MI, USA.
| | - Abbey Dunn
- Department of Neurology Sleep Disorders Center, University of Michigan Ann Arbor, MI, USA
| | - Tiffany J Braley
- Department of Neurology Multiple Sclerosis and Sleep Disorders Center, University of Michigan, Ann Arbor, MI, USA
| | - Bertram Pitt
- Department of Internal Medicine Cardiovascular Center, University of Michigan, Ann Arbor, MI, USA
| | - Anita V Shelgikar
- Department of Neurology Sleep Disorders Center, University of Michigan Ann Arbor, MI, USA
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18
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Abstract
Obstructive sleep apnea (OSA) creates a complex and dynamic substrate for atrial fibrillation (AF), which is characterized by structural remodeling as a result of long-term OSA as well as transient and acute apnea-associated transient atrial electrophysiological changes. OSA is present in 21% to 74% of patients with AF, and nonrandomized studies suggest that treatment of OSA by continuous positive airway pressure may help to maintain sinus rhythm after electrical cardioversion and improve catheter ablation success rates. Management of OSA in patients with AF requires a close interdisciplinary collaboration between the electrophysiologist/cardiologist and sleep specialists.
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Affiliation(s)
- Dominik Linz
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia; Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute, Maastricht, the Netherlands; Department of Cardiology, Radboud University Medical Centre, Nijmegen, the Netherlands; Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Stanley Nattel
- Department of Medicine, Montreal Heart Institute and Université de Montréal, Montréal, Quebec, Canada; Department of Pharmacology and Therapeutics, McGill University, 3655 Prom. Sir Willian Osler, Montreal, Quebec H3G 1Y6, Canada; Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen, Essen, Germany
| | - Jonathan M Kalman
- Department of Cardiology, Royal Melbourne Hospital and Department of Medicine, University of Melbourne, 300 Grattan Street, Melbourne, Victoria, Australia
| | - Prashanthan Sanders
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia
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19
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Abstract
Zusammenfassung
Hintergrund
Vorhofflimmern (VHF) ist die häufigste Herzrhythmusstörung. Sowohl die zentrale als auch die obstruktive Schlafapnoe interagieren mit dieser Erkrankung. Intermittierende Hypoxie, oxidativer Stress, wiederkehrende Aufwachreaktionen, intrathorakale Druckveränderungen und atriales Remodeling können im Rahmen einer schlafbezogenen Atmungsstörung (SBAS) zu VHF führen.
Ziel
Dieser Artikel stellt die komplexen Zusammenhänge und Erkenntnisse jüngster Forschungen bezüglich SBAS und VHF sowie die Therapiemöglichkeiten dar.
Material und Methoden
Es erfolgten eine Literaturrecherche von Original- und Übersichtsartikeln sowie Metaanalysen, die zwischen 1963 und 2020 in der PubMed-Datenbank veröffentlicht wurden.
Ergebnisse
Die Erkenntnisse der Studien weisen auf einen bidirektionalen kausalen Zusammenhang zwischen SBAS und VHF hin. Die pathophysiologischen Auswirkungen der obstruktiven und zentralen Schlafapnoe auf VHF sind unterschiedlich. Die Studien, die die Effekte einer Therapie der SBAS auf das Rezidivrisiko von VHF nach Intervention (Kardioversion oder Pulmonalvenenisolation) untersuchen, ergeben bisher kein eindeutiges Bild.
Diskussion
Bisherige Studien bestätigen multiple Interaktionen zwischen SBAS und VHF. Aufgrund widersprüchlicher Ergebnisse hinsichtlich der Effekte einer positiven Atemwegsdrucktherapie auf das Rezidivrisiko von VHF nach Interventionen sind weitere Studien nötig.
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20
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Linz D, Hendriks J. Central sleep apnea in atrial fibrillation: Risk factor or marker of untreated underlying disease? IJC HEART & VASCULATURE 2020; 30:100650. [PMID: 33104086 PMCID: PMC7573638 DOI: 10.1016/j.ijcha.2020.100650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 01/19/2023]
Affiliation(s)
- Dominik Linz
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia.,Department of Cardiology, Maastricht University Medical Centre and Cardiovascular Research Institute Maastricht, the Netherlands.,Department of Cardiology, Radboud University Medical Centre, Nijmegen, the Netherlands.,Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jeroen Hendriks
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia.,Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, Australia
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21
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Chaudhry R, Suen C, Mubashir T, Wong J, Ryan CM, Mokhlesi B, Chung F. Risk of major cardiovascular and cerebrovascular complications after elective surgery in patients with sleep-disordered breathing. Eur J Anaesthesiol 2020; 37:688-695. [DOI: 10.1097/eja.0000000000001267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Ang YS, Rajamani S, Haldar SM, Hüser J. A New Therapeutic Framework for Atrial Fibrillation Drug Development. Circ Res 2020; 127:184-201. [DOI: 10.1161/circresaha.120.316576] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Atrial fibrillation (AF) is a highly prevalent cardiac arrhythmia and cause of significant morbidity and mortality. Its increasing prevalence in aging societies constitutes a growing challenge to global healthcare systems. Despite substantial unmet needs in AF prevention and treatment, drug developments hitherto have been challenging, and the current pharmaceutical pipeline is nearly empty. In this review, we argue that current drugs for AF are inadequate because of an oversimplified system for patient classification and the development of drugs that do not interdict underlying disease mechanisms. We posit that an improved understanding of AF molecular pathophysiology related to the continuous identification of novel disease-modifying drug targets and an increased appreciation of patient heterogeneity provide a new framework to personalize AF drug development. Together with recent innovations in diagnostics, remote rhythm monitoring, and big data capabilities, we anticipate that adoption of a new framework for patient subsegmentation based on pathophysiological, genetic, and molecular subsets will improve success rates of clinical trials and advance drugs that reduce the individual patient and public health burden of AF.
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Affiliation(s)
- Yen-Sin Ang
- From Amgen Research, Cardiometabolic Disorders, South San Francisco, CA (Y.-S.A., S.R., S.M.H.)
| | - Sridharan Rajamani
- From Amgen Research, Cardiometabolic Disorders, South San Francisco, CA (Y.-S.A., S.R., S.M.H.)
| | - Saptarsi M. Haldar
- From Amgen Research, Cardiometabolic Disorders, South San Francisco, CA (Y.-S.A., S.R., S.M.H.)
- Gladstone Institutes, San Francisco, CA (S.M.H.)
- Department of Medicine, Cardiology Division, UCSF School of Medicine, San Francisco, CA (S.M.H.)
| | - Jörg Hüser
- Bayer AG, Pharma-RD-PCR TA Cardiovascular Disease, Wuppertal, Germany (J.H.)
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23
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Risom SS, Fevejle Cromhout P, Overgaard D, Hastrup Svendsen J, Kikkenborg Berg S. Effect of Rehabilitation on Sleep Quality After Ablation for Atrial Fibrillation: Data From a Randomized Trial. J Cardiovasc Nurs 2019; 33:261-268. [PMID: 29271795 PMCID: PMC5908260 DOI: 10.1097/jcn.0000000000000476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Low sleep quality is common in patients with atrial fibrillation (AF). Positive effects of cardiac rehabilitation on patients treated for AF with ablation have been found, but whether cardiac rehabilitation affects sleep quality is unknown. The objectives of this study were to investigate (1) differences in sleep quality between cardiac rehabilitation and usual care groups and (2) whether other factors could affect sleep quality. METHODS From the randomized CopenHeartRFA trial, 210 patients treated for AF with ablation were included. A rehabilitation program consisting of physical exercise and psychoeducational consultations was tested. Sleep quality was measured with the Pittsburg Sleep Quality Index (PSQI) questionnaire before intervention and at the end of intervention. Anxiety, depression, and European Heart Rhythm Association scores were assessed. RESULTS No difference between groups in sleep quality was found (PSQI global mean [SD] score, 6.60 [3.61] points for the cardiac rehabilitation group [n = 83] and 6.08 [3.60] points for the usual care group [n = 90]; P = .34), although improvements in sleep quality were noted in both groups. Sleep latency, duration, and efficiency were significant by type of AF at 1 month. Anxiety, depression, and higher European Heart Rhythm Association scores at 4 months were associated with a higher PSQI global mean score at the end of intervention. CONCLUSION The rehabilitation program showed no effect on sleep quality. A large proportion of patients reported poor sleep quality, and patients reporting anxiety, depression, or AF symptoms described worse sleep quality compared with patients who did not experience anxiety, depression, or AF symptoms. More research in the field is warranted.
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Affiliation(s)
- Signe Stelling Risom
- Signe Stelling Risom, PhD, RN Postdoc, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, and Faculty of Health and Technology, Institute of Nursing, Metropolitan University College, Copenhagen, Denmark. Pernille Fevejle Cromhout, MSc, RN PhD Student, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark. Dorthe Overgaard, PhD, RN Docent, Faculty of Health and Technology, Institute of Nursing, Metropolitan University College, Copenhagen, Denmark. Jesper Hastrup Svendsen, MD, DMSc Professor, The Heart Centre, Rigshospitalet, Copenhagen University Hospital; Faculty of Health and Medical Sciences, University of Copenhagen; and The Danish National Research Foundation Centre for Cardiac Arrhythmia, Copenhagen, Denmark. Selina Kikkenborg Berg, PhD, MScN, RN Senior Researcher, The Heart Centre, Rigshospitalet, Copenhagen University Hospital; Faculty of Health and Medical Sciences, University of Copenhagen; and Institute of Public Health, University of Southern Denmark, Odense, Denmark
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24
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Spiesshoefer J, Linz D, Skobel E, Arzt M, Stadler S, Schoebel C, Fietze I, Penzel T, Sinha AM, Fox H, Oldenburg O. Sleep – the yet underappreciated player in cardiovascular diseases: A clinical review from the German Cardiac Society Working Group on Sleep Disordered Breathing. Eur J Prev Cardiol 2019; 28:189-200. [PMID: 33611525 DOI: 10.1177/2047487319879526] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 09/10/2019] [Indexed: 11/16/2022]
Abstract
Abstract
Patients with a wide variety of cardiovascular diseases, including arterial and pulmonary hypertension, arrhythmia, coronary artery disease and heart failure, are more likely to report impaired sleep with reduced sleep duration and quality, and also, sometimes, sleep interruptions because of paroxysmal nocturnal dyspnoea or arrhythmias. Overall, objective short sleep and bad sleep quality (non-restorative sleep) and subjective long sleep duration are clearly associated with major cardiovascular diseases and fatal cardiovascular outcomes. Sleep apnoea, either obstructive or central in origin, represents the most prevalent, but only one, of many sleep-related disorders in cardiovascular patients. However, observations suggest a bidirectional relationship between sleep and cardiovascular diseases that may go beyond what can be explained based on concomitant sleep-related disorders as confounding factors. This makes sleep itself a modifiable treatment target. Therefore, this article reviews the available literature on the association of sleep with cardiovascular diseases, and discusses potential pathophysiological mechanisms. In addition, important limitations of the current assessment, quantification and interpretation of sleep in patients with cardiovascular disease, along with a discussion of suitable study designs to address future research questions and clinical implications are highlighted. There are only a few randomised controlled interventional outcome trials in this field, and some of the largest studies have failed to demonstrate improved survival with treatment (with worse outcomes in some cases). In contrast, some recent pilot studies have shown a benefit of treatment in selected patients with underlying cardiovascular diseases.
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Affiliation(s)
- Jens Spiesshoefer
- Institute of Life Sciences, Scuola Superiore Sant Anna, Pisa, Italy
- Respiratory Physiology Laboratory, Department of Neurology with Institute for Translational Neurology, University of Muenster, Muenster, Germany
| | - Dominik Linz
- Centre for Heart Rhythm Disorders (CHRD), South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia
| | - Erik Skobel
- Medical Care Unit Pneumology, Sleep Medicine, Allergology and Cardiology, Luisenhospital Aachen, Aachen, Germany
| | - Michael Arzt
- Department of Internal Medicine II, University Medical Center Regensburg, Regensburg, Germany
| | - Stefan Stadler
- Department of Internal Medicine II, University Medical Center Regensburg, Regensburg, Germany
| | - Christoph Schoebel
- Interdisciplinary Sleep Medicine Center, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Ingo Fietze
- Interdisciplinary Sleep Medicine Center, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Thomas Penzel
- Interdisciplinary Sleep Medicine Center, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | | | - Henrik Fox
- Clinic for Cardiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Olaf Oldenburg
- Ludgerus-Kliniken Münster, Clemenshospital, Department of Cardiology, Münster, Germany
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25
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Abstract
Synchronization of molecular, metabolic, and cardiovascular circadian oscillations is fundamental to human health. Sleep-disordered breathing, which disrupts such temporal congruence, elicits hemodynamic, autonomic, chemical, and inflammatory disturbances with acute and long-term consequences for heart, brain, and circulatory and metabolic function. Sleep apnea afflicts a substantial proportion of adult men and women but is more prevalent in those with established cardiovascular diseases and especially fluid-retaining states. Despite the experimental, epidemiological, observational, and interventional evidence assembled in support of these concepts, this substantial body of work has had relatively modest pragmatic impact, thus far, on the discipline of cardiology. Contemporary estimates of cardiovascular risk still are derived typically from data acquired during wakefulness. The impact of sleep-related breathing disorders rarely is entered into such calculations or integrated into diagnostic disease-specific algorithms or therapeutic recommendations. Reasons for this include absence of apnea-related symptoms in most with cardiovascular disease, impediments to efficient diagnosis at the population level, debate as to target, suboptimal therapies, difficulties mounting large randomized trials of sleep-specific interventions, and the challenging results of those few prospective cardiovascular outcome trials that have been completed and reported. The objectives of this review are to delineate the bidirectional interrelationship between sleep-disordered breathing and cardiovascular disease, consider the findings and implications of observational and randomized trials of treatment, frame the current state of clinical equipoise, identify principal current controversies and potential paths to their resolution, and anticipate future directions.
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Affiliation(s)
- John S Floras
- From the University Health Network and Sinai Health System Division of Cardiology, Department of Medicine, University of Toronto, Ontario, Canada.
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Continuous Positive Airway Pressure Effectively Alleviates Arrhythmias in Patients with Obstructive Sleep Apnea: Possible Relationship with Counteracting Oxidative Stress. Curr Med Sci 2019; 39:52-58. [DOI: 10.1007/s11596-019-1999-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 11/13/2018] [Indexed: 11/25/2022]
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Linz D, Baumert M, Catcheside P, Floras J, Sanders P, Lévy P, Cowie MR, Doug McEvoy R. Assessment and interpretation of sleep disordered breathing severity in cardiology: Clinical implications and perspectives. Int J Cardiol 2018; 271:281-288. [DOI: 10.1016/j.ijcard.2018.04.076] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Revised: 04/14/2018] [Accepted: 04/17/2018] [Indexed: 10/28/2022]
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Kohno T, Kimura T, Fukunaga K, Yamasawa W, Fujisawa T, Fukuoka R, Nakajima K, Kashimura S, Kunitomi A, Katsumata Y, Nishiyama T, Nishiyama N, Aizawa Y, Fukuda K, Takatsuki S. Prevalence and clinical characteristics of obstructive- and central-dominant sleep apnea in candidates of catheter ablation for atrial fibrillation in Japan. Int J Cardiol 2018; 260:99-102. [PMID: 29622460 DOI: 10.1016/j.ijcard.2018.01.103] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 01/05/2018] [Accepted: 01/22/2018] [Indexed: 02/06/2023]
Abstract
INTRODUCTION We aimed to study the prevalence and types of sleep apnea (SA) as well as their clinical characteristics in atrial fibrillation (AF) ablation candidates in Japan. METHODS Before catheter ablation, 197 consecutive AF patients (age: 60 ± 9 years, body mass index; 25.0 ± 3.0) were evaluated with portable polygraphy. We compared the clinical characteristics, according to the severity of SA as well as its types, as defined by the presence of obstruction and the mixed vs. central apnea indices. RESULTS The mean apnea-hypopnea index (AHI) was 17.7 ± 11.9, with 135 AF patients having an AHI ≥10 (68.5%). Patients with an AHI ≥10 had a significantly higher body mass index, plasma brain natriuretic peptide (BNP) level, prevalence of hypertension, and larger left atrial size. Among patients with an AHI ≥10, the incidence of obstructive-dominant SA was 60.9% and that of central-dominant SA was 7.6%. The prevalence of hypertension was significantly higher in obstructive-dominant SA patients (obstructive vs. central: 48.3% vs. 20.0%, P = 0.038). The obstructive apnea index correlated with plasma BNP level and age, but the central and mixed apnea indices did not. CONCLUSIONS The prevalence of SA was common in AF ablation candidates, even without an obesity epidemic, and the SA type was predominantly obstructive. Portable polygraphy was useful for detecting undiagnosed SA patients in AF ablation candidates.
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Affiliation(s)
- Takashi Kohno
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan.
| | - Takehiro Kimura
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Koichi Fukunaga
- Department of Pulmonary Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Wakako Yamasawa
- Department of Pulmonary Medicine, Keio University School of Medicine, Tokyo, Japan; Department of Laboratory Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Taishi Fujisawa
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Ryoma Fukuoka
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Kazuaki Nakajima
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Shin Kashimura
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Akira Kunitomi
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | | | - Takahiko Nishiyama
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Nobuhiro Nishiyama
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Yoshiyasu Aizawa
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Keiichi Fukuda
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Seiji Takatsuki
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
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Ghazi L, Bennett A, Petrov ME, Howard VJ, Safford MM, Soliman EZ, Glasser SP. Race, Sex, Age, and Regional Differences in the Association of Obstructive Sleep Apnea With Atrial Fibrillation: Reasons for Geographic and Racial Differences in Stroke Study. J Clin Sleep Med 2018; 14:1485-1493. [PMID: 30176963 DOI: 10.5664/jcsm.7320] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 05/09/2018] [Indexed: 12/19/2022]
Abstract
STUDY OBJECTIVES To examine the cross-sectional association between obstructive sleep apnea (OSA) risk and atrial fibrillation (AF) in the REasons for Geographic And Racial Differences in Stroke (REGARDS), a cohort of black and white adults. METHODS Using REGARDS data from subjects recruited between 2003-2007, we assessed 20,351 participants for OSA status. High OSA risk was determined if the participant met at least two criteria from the Berlin Sleep Questionnaire (persistent snoring, frequent sleepiness, high blood pressure, or obesity). AF was defined as a self-reported history of a previous physician diagnosis or presence of AF on electrocardiogram. Logistic regression was used to determine odds ratio and 95% confidence interval for the association between OSA status and AF with subgroup analysis to examine effect modification by age, race, sex, and geographical region. RESULTS The prevalence of AF was 7% (n = 1,079/14,992) and 9% (n = 482/5,359) in participants at low and high risk of OSA, respectively (P < .0001). Persons at high risk of OSA had greater prevalence of diabetes and stroke history, and were more likely to be obese and taking sleep medications. In a multivariable analysis adjusted for demographics, cardiovascular risk factors, and potential confounders, high risk for OSA was associated with an increased odds of AF compared to low risk for OSA (odds ratio = 1.27, 95% confidence interval = 1.13, 1.44). This association differed significantly only by race (P for interaction = .0003). For blacks, there was a significant 58% increase in odds of AF in participants at high risk versus low risk of OSA, compared to a nonsignificant 12% increase in odds in whites. We were limited by self-reported variables, inability to adjust for obesity, and the cross-sectional nature of our study. CONCLUSIONS High risk of OSA is associated with prevalent AF among blacks but not whites. COMMENTARY A commentary on this article appears in this issue on page 1459.
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Affiliation(s)
- Lama Ghazi
- Department of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota
| | - Aleena Bennett
- Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Megan E Petrov
- College of Nursing and Health Innovation, Arizona State University, Phoenix, Arizona
| | - Virginia J Howard
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama
| | - Monika M Safford
- Department of Internal Medicine, Weill Cornell Medicine, New York, New York
| | - Elsayed Z Soliman
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Stephen P Glasser
- Department of Medicine (Cardiology), University Kentucky, Lexington, Kentucky
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Holmes AP, Ray CJ, Pearson SA, Coney AM, Kumar P. Ecto-5'-nucleotidase (CD73) regulates peripheral chemoreceptor activity and cardiorespiratory responses to hypoxia. J Physiol 2018; 596:3137-3148. [PMID: 28560821 PMCID: PMC6068227 DOI: 10.1113/jp274498] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 05/25/2017] [Indexed: 12/17/2022] Open
Abstract
KEY POINTS Carotid body dysfunction is recognized as a cause of hypertension in a number of cardiorespiratory diseases states and has therefore been identified as a potential therapeutic target. Purinergic transmission is an important element of the carotid body chemotransduction pathway. We show that inhibition of ecto-5'-nucleotidase (CD73) in vitro reduces carotid body basal discharge and responses to hypoxia and mitochondrial inhibition. Additionally, inhibition of CD73 in vivo decreased the hypoxic ventilatory response, reduced the hypoxia-induced heart rate elevation and exaggerated the blood pressure decrease in response to hypoxia. Our data show CD73 to be a novel regulator of carotid body sensory function and therefore suggest that this enzyme may offer a new target for reducing carotid body activity in selected cardiovascular diseases. ABSTRACT Augmented sensory neuronal activity from the carotid body (CB) has emerged as a principal cause of hypertension in a number of cardiovascular related pathologies, including obstructive sleep apnoea, heart failure and diabetes. Development of new targets and pharmacological treatment strategies aiming to reduce CB sensory activity may thus improve outcomes in these key patient cohorts. The present study investigated whether ecto-5'-nucleotidase (CD73), an enzyme that generates adenosine, is functionally important in modifying CB sensory activity and cardiovascular respiratory responses to hypoxia. Inhibition of CD73 by α,β-methylene ADP (AOPCP) in the whole CB preparation in vitro reduced basal discharge frequency by 76 ± 5% and reduced sensory activity throughout graded hypoxia. AOPCP also significantly attenuated elevations in sensory activity evoked by mitochondrial inhibition. These effects were mimicked by antagonism of adenosine receptors with 8-(p-sulfophenyl) theophylline. Infusion of AOPCP in vivo significantly decreased the hypoxic ventilatory response (Δ V ̇ E control 74 ± 6%, Δ V ̇ E AOPCP 64 ± 5%, P < 0.05). AOPCP also modified cardiovascular responses to hypoxia, as indicated by reduced elevations in heart rate and exaggerated changes in femoral vascular conductance and mean arterial blood pressure. Thus we identify CD73 as a novel regulator of CB sensory activity. Future investigations are warranted to clarify whether inhibition of CD73 can effectively reduce CB activity in CB-mediated cardiovascular pathology.
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Affiliation(s)
| | - Clare J. Ray
- Institute of Clinical SciencesUniversity of BirminghamEdgbastonBirminghamUK
| | - Selina A. Pearson
- Mouse Pipelines, Wellcome Trust Sanger InstituteWellcome Genome CampusHinxtonCambridgeUK
| | - Andrew M. Coney
- Institute of Clinical SciencesUniversity of BirminghamEdgbastonBirminghamUK
| | - Prem Kumar
- Institute of Clinical SciencesUniversity of BirminghamEdgbastonBirminghamUK
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Linz D, McEvoy RD, Cowie MR, Somers VK, Nattel S, Lévy P, Kalman JM, Sanders P. Associations of Obstructive Sleep Apnea With Atrial Fibrillation and Continuous Positive Airway Pressure Treatment. JAMA Cardiol 2018. [DOI: 10.1001/jamacardio.2018.0095] [Citation(s) in RCA: 188] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Dominik Linz
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia
| | - R. Doug McEvoy
- Adelaide Institute for Sleep Health, College of Medicine and Public Health, Flinders University
- Sleep Health Service, Respiratory and Sleep Services, Southern Adelaide Local Health Network, Adelaide, Australia
| | - Martin R. Cowie
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, England
| | - Virend K. Somers
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
| | - Stanley Nattel
- Department of Medicine, Montreal Heart Institute and Université de Montréal, Montréal, Quebec, Canada
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
- Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen, Essen, Germany
| | - Patrick Lévy
- HP2 and Sleep Lab, Institut National de la Santé et de la Recherche Médicale, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France
- University Grenoble Alpes, Grenoble, France
| | - Jonathan M. Kalman
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, Australia
- Department of Medicine, University of Melbourne, Melbourne, Australia
| | - Prashanthan Sanders
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia
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Linz D, Nalliah C, Kalman J, Sanders P. Routine screening for sleep apnea in patients with atrial fibrillation: Ready for primetime? Int J Cardiol 2018; 260:103-104. [PMID: 29622416 DOI: 10.1016/j.ijcard.2018.02.083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 02/20/2018] [Indexed: 10/17/2022]
Affiliation(s)
- Dominik Linz
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia.
| | - Chrishan Nalliah
- Department of Cardiology, Royal Melbourne Hospital and Department of Medicine, University of Melbourne, Melbourne, Australia
| | - Jonathan Kalman
- Department of Cardiology, Royal Melbourne Hospital and Department of Medicine, University of Melbourne, Melbourne, Australia
| | - Prashanthan Sanders
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia
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33
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Roder F, Strotmann J, Fox H, Bitter T, Horstkotte D, Oldenburg O. Interactions of Sleep Apnea, the Autonomic Nervous System, and Its Impact on Cardiac Arrhythmias. CURRENT SLEEP MEDICINE REPORTS 2018. [DOI: 10.1007/s40675-018-0117-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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34
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Desteghe L, Hendriks JML, McEvoy RD, Chai-Coetzer CL, Dendale P, Sanders P, Heidbuchel H, Linz D. The why, when and how to test for obstructive sleep apnea in patients with atrial fibrillation. Clin Res Cardiol 2018; 107:617-631. [DOI: 10.1007/s00392-018-1248-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 04/09/2018] [Indexed: 12/24/2022]
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35
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Khoshkish S, Hohl M, Linz B, Arzt M, Mahfoud F, Baumert M, Schöpe J, Böhm M, Linz D. The association between different features of sleep-disordered breathing and blood pressure: A cross-sectional study. J Clin Hypertens (Greenwich) 2018; 20:575-581. [PMID: 29338120 PMCID: PMC8030859 DOI: 10.1111/jch.13202] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 10/20/2017] [Accepted: 11/07/2017] [Indexed: 10/18/2022]
Abstract
Sleep disordered breathing (SDB) is highly prevalent in patients with high blood pressure (BP). Severity of SDB can be evaluated by the number of apneas and hypopneas per hour (AHI) or by measures of hypoxia. The objective of this study was to assess the association between different measures of SDB and BP. In 134 consecutive patients, polygraphy was performed to determine the AHI. Pulse oximetry was used to determine hypoxemic burden (time below 90% oxygen saturation [T90] and hypoxia load [HL], representing the integrated area above the curve of desaturation). AHI did not correlate with systolic and diastolic BP or pulse pressure. In contrast, HL correlated with pulse pressure during the day (P = .01) and night (P = .0034) before and after adjustment for body mass index. The correlation between systolic BP and HL at night disappeared following adjustment for body mass index. This study generates the hypothesis that nocturnal hypoxemic burden may represent a suitable marker of BP pattern and a potential treatment target in hypertensive patients.
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Affiliation(s)
- Shayan Khoshkish
- Department of Internal Medicine IIIUniversity Hospital Homburg University of the SaarlandHomburg/SaarGermany
| | - Mathias Hohl
- Department of Internal Medicine IIIUniversity Hospital Homburg University of the SaarlandHomburg/SaarGermany
| | - Benedikt Linz
- Department of Internal Medicine IIIUniversity Hospital Homburg University of the SaarlandHomburg/SaarGermany
| | - Michael Arzt
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Felix Mahfoud
- Department of Internal Medicine IIIUniversity Hospital Homburg University of the SaarlandHomburg/SaarGermany
| | - Mathias Baumert
- School of Electrical and Electronic EngineeringUniversity of AdelaideAdelaideSAAustralia
| | - Jakob Schöpe
- Institute for Medical Biometry, Epidemiology and Medical InformaticsSaarland UniversityHomburg/SaarGermany
| | - Michael Böhm
- Department of Internal Medicine IIIUniversity Hospital Homburg University of the SaarlandHomburg/SaarGermany
| | - Dominik Linz
- Department of Internal Medicine IIIUniversity Hospital Homburg University of the SaarlandHomburg/SaarGermany
- Centre for Heart Rhythm DisordersSouth Australian Health and Medical Research InstituteRoyal Adelaide HospitalUniversity of AdelaideAdelaideSAAustralia
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36
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Zhao E, Chen S, Du Y, Zhang Y. Association between Sleep Apnea Hypopnea Syndrome and the Risk of Atrial Fibrillation: A Meta-Analysis of Cohort Study. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5215868. [PMID: 29581977 PMCID: PMC5822830 DOI: 10.1155/2018/5215868] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 12/04/2017] [Accepted: 12/24/2017] [Indexed: 12/16/2022]
Abstract
Numerous reports have been done to seek the relationship between sleep apnea hypopnea syndrome (SAHS) and the risk of atrial fibrillation (AF). However, definite conclusion has not yet been fully established. We examined whether SAHS increases AF incidence in common population and summarized all existing studies in a meta-analysis. We summarized the current studies by searching related database for potential papers of the association between SAHS and the risk of AF. Studies that reported original data or relative risks (RRs) with 95% confidence intervals (CIs) for the associations were included. Sensitivity analyses were performed by omitting each study iteratively and publication bias was detected by Begg's tests. Eight eligible studies met the inclusion criteria. Fixed effects meta-analysis showed that SAHS increased AF risk in the common population (RR = 1.70, 95% CI: 1.53-1.89, P = 0.002, I2 = 69.2%). There was a significant association between mild SAHS and the risk of AF (RR = 1.52, 95% CI: 1.28-1.79, P = 0.01, I2 = 78.4%), moderate SAHS (RR = 1.88, 95% CI: 1.55-2.27, P = 0.017, I2 = 75.6%), and severe SAHS (RR = 2.16, 95% CI: 1.78-2.62, P < 0.001, I2 = 91.0%). The results suggest that sleep apnea hypopnea syndrome could increase the risk of AF, and the higher the severity of SAHS, the higher risk of atrial fibrillation.
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Affiliation(s)
- Enfa Zhao
- Department of Structural Heart Disease, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Shimin Chen
- Department of Gastroenterology, The First Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, China
| | - Yajuan Du
- Department of Structural Heart Disease, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yushun Zhang
- Department of Structural Heart Disease, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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37
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Nocturnal hypoxemic burden is associated with epicardial fat volume in patients with acute myocardial infarction. Sleep Breath 2018; 22:703-711. [DOI: 10.1007/s11325-017-1616-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 12/13/2017] [Accepted: 12/29/2017] [Indexed: 12/20/2022]
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38
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Renal artery denervation for treatment of patients with self-reported obstructive sleep apnea and resistant hypertension: results from the Global SYMPLICITY Registry. J Hypertens 2017; 35:148-153. [PMID: 27906840 DOI: 10.1097/hjh.0000000000001142] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Sleep-disordered breathing, predominantly obstructive sleep apnea (OSA), is highly prevalent in patients with hypertension. OSA may underlie the progression to resistant hypertension, partly due to increased activation of the sympathetic nervous system. This analysis of patients with and without OSA evaluated the blood pressure (BP)-lowering effect of sympathetic modulation by renal denervation (RDN) in a real-world setting. METHODS The Global SYMPLICITY Registry (NCT01534299) is a prospective, open-label, multicenter registry conducted worldwide to evaluate the safety and effectiveness of RDN in patients with uncontrolled hypertension. Office and 24-h ambulatory BP were reported for all patients, based on the presence of OSA. RESULTS Among 1868 patients, self-reported OSA occurred in 205 patients, who were more likely to be men (76 vs 57%, P < 0.001), have a higher BMI (34 ± 6 vs 30 ± 5 kg/m, P < 0.001), chronic kidney disease (30 vs 21%, P = 0.003), left ventricular hypertrophy (25 vs 15%, P < 0.001), and type 2 diabetes (50 vs 36%, P < 0.001). Among OSA patients, the baseline office SBP (166 ± 26 mmHg) was reduced by 14.0 ± 25.3 mmHg at 6 months (P < 0.001). Ambulatory 24-h SBP was reduced by 4.9 ± 18.0 mmHg (n = 115, P = 0.005) from 155 ± 19 mmHg at baseline. The 6-month change in SBP from baseline was not statistically different between OSA and non-OSA patients. BP reduction after RDN was also similar in OSA patients already treated with and not treated with continuous positive airway pressure. CONCLUSION RDN resulted in significant BP reductions at 6 months in hypertensive patients with and without OSA, and regardless of continuous positive airway pressure usage in OSA patients.
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Strotmann J, Fox H, Bitter T, Sauzet O, Horstkotte D, Oldenburg O. Characteristics of sleep-disordered breathing in patients with atrial fibrillation and preserved left ventricular ejection fraction. Clin Res Cardiol 2017; 107:120-129. [DOI: 10.1007/s00392-017-1163-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 09/13/2017] [Indexed: 10/18/2022]
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40
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Yu L, Li X, Huang B, Zhou X, Wang M, Zhou L, Meng G, Wang Y, Wang Z, Deng J, Jiang H. Atrial Fibrillation in Acute Obstructive Sleep Apnea: Autonomic Nervous Mechanism and Modulation. J Am Heart Assoc 2017; 6:JAHA.117.006264. [PMID: 28903938 PMCID: PMC5634281 DOI: 10.1161/jaha.117.006264] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Background The mechanisms of atrial fibrillation (AF) induced by obstructive sleep apnea (OSA) are not completely understood. This study investigated the roles of the intrinsic and extrinsic cardiac autonomic nervous system in OSA‐induced AF and provided noninvasive autonomic nervous modulation for the suppression of OSA‐induced AF by using low‐level transcutaneous electrical stimulation (LL‐TS) of the auricular branch of the vagus nerve at the tragus. Methods and Results Eighteen dogs received tracheostomy under general anesthesia and were randomly divided into 3 groups: the OSA group (OSA was simulated via clamping of the endotracheal tube at end expiration for 1.5 minutes every 10 minutes, n=6), the LL‐TS + OSA group (simulated OSA plus LL‐TS, at 80% of the slowing sinus rate, n=6), and the control group (sham surgery without stimulation, n=6). The effective refractory period was significantly shortened after 1 hour of simulated OSA, and the window of vulnerability and plasma norepinephrine levels were both markedly increased in the OSA group. OSA dramatically increased the neural function and activity of the intrinsic and extrinsic cardiac autonomic nervous system, including the superior left ganglionated plexus, the left stellate ganglion, and the left renal sympathetic nerve. OSA also significantly upregulated the expression levels of c‐fos and nerve growth factor in the superior left ganglionated plexus and the left stellate ganglion. However, LL‐TS markedly improved these parameters. Conclusions These findings suggest that the intrinsic and extrinsic cardiac autonomic nervous system plays crucial roles in the acute stage of OSA‐induced AF. Noninvasive LL‐TS suppressed shortening of atrial refractoriness and autonomic remodeling, which prevented OSA‐induced AF.
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Affiliation(s)
- Lilei Yu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China .,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Xuefei Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Bing Huang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Xiaoya Zhou
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Menglong Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Liping Zhou
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Guannan Meng
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Yuhong Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Zhenya Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Jielin Deng
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
| | - Hong Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China .,Cardiovascular Research Institute, Wuhan University, Wuhan, Hubei, China.,Hubei Key Laboratory of Cardiology, Wuhan, Hubei, China
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41
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Thanigaimani S, McLennan E, Linz D, Mahajan R, Agbaedeng TA, Lee G, Kalman JM, Sanders P, Lau DH. Progression and reversibility of stretch induced atrial remodeling: Characterization and clinical implications. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2017; 130:376-386. [PMID: 28734850 DOI: 10.1016/j.pbiomolbio.2017.07.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 07/17/2017] [Accepted: 07/18/2017] [Indexed: 12/13/2022]
Abstract
Atrial fibrillation (AF) is the most common sustained arrhythmia and across the developed nations, it contributes to increasing hospitalizations and healthcare burden. Several comorbidities and risk factors including hypertension, heart failure, obstructive sleep apnoea and obesity are known to play an important role in the initiation and perpetuation of AF and atrial stretch or dilatation may play a central mechanistic role. The impact of atrial stretch in the development of AF can vary dependent on the underlying disease. This review focuses on understanding the substrate for AF in conditions of acute and chronic stretch and in the presence of common co-morbidities or risk factors through the review of findings in both animal and human studies. Additionally, the reversibility of atrial remodeling following stretch release will also be discussed. Identification of clinical conditions associated with increased atrial stretch as well as the treatment or prevention of these conditions may help to prevent AF progression and improve sinus rhythm maintenance.
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Affiliation(s)
- Shivshankar Thanigaimani
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Emma McLennan
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Dominik Linz
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Rajiv Mahajan
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Thomas A Agbaedeng
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Geoffrey Lee
- Department of Cardiology, Royal Melbourne Hospital and Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jonathan M Kalman
- Department of Cardiology, Royal Melbourne Hospital and Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
| | - Prashanthan Sanders
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Dennis H Lau
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, South Australia, Australia.
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42
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Cardiac autonomic ganglia ablation suppresses atrial fibrillation in a canine model of acute intermittent hypoxia. Auton Neurosci 2017; 205:26-32. [DOI: 10.1016/j.autneu.2017.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/26/2017] [Accepted: 02/21/2017] [Indexed: 01/08/2023]
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Sharma N, Lee J, Youssef I, Salifu MO, McFarlane SI. Obesity, Cardiovascular Disease and Sleep Disorders: Insights into the Rising Epidemic. ACTA ACUST UNITED AC 2017. [PMID: 28638745 DOI: 10.4172/2167-0277.1000260] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cardiovascular disease (CVD) is the main cause of death among adult men and women in the USA and impacts millions around the globe. Traditional risk factors for CVD include obesity, diabetes, hypertension and dyslipidemia. The modern-day epidemic of obesity not only increased the rate of CVD but also ushered in an additional CVD risk factor to be added to the list; that is obstructive sleep apnea (OSA). In this review, we discuss the growing epidemic of obesity and OSA, highlighting the common pathogenic hypotheses linking these risk factors to CVD. We will also highlight the therapeutic rationale of OSA as a way to reduce CVD risk.
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Affiliation(s)
- Navneet Sharma
- Department of Medicine, Divisions of Endocrinology and Nephrology, New York, USA
| | - Justin Lee
- Department of Medicine, Divisions of Endocrinology and Nephrology, New York, USA
| | - Irini Youssef
- Department of Medicine, Divisions of Endocrinology and Nephrology, New York, USA
| | - Moro O Salifu
- Department of Medicine, Divisions of Endocrinology and Nephrology, New York, USA
| | - Samy I McFarlane
- Department of Medicine, Divisions of Endocrinology and Nephrology, New York, USA
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44
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Obstructive sleep and atrial fibrillation: Pathophysiological mechanisms and therapeutic implications. Int J Cardiol 2017; 230:293-300. [DOI: 10.1016/j.ijcard.2016.12.120] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 12/12/2016] [Accepted: 12/17/2016] [Indexed: 12/12/2022]
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45
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Gemel J, Su Z, Gileles-Hillel A, Khalyfa A, Gozal D, Beyer EC. Intermittent hypoxia causes NOX2-dependent remodeling of atrial connexins. BMC Cell Biol 2017; 18:7. [PMID: 28124622 PMCID: PMC5267331 DOI: 10.1186/s12860-016-0117-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Obstructive sleep apnea has been linked to the development of heart disease and arrhythmias, including atrial fibrillation. Since altered conduction through gap junction channels can contribute to the pathogenesis of such arrhythmias, we examined the abundance and distributions of the major cardiac gap junction proteins, connexin40 (Cx40) and connexin43 (Cx43) in mice treated with sleep fragmentation or intermittent hypoxia (IH) as animal models of the components of obstructive sleep apnea. RESULTS Wild type C57BL/6 mice or mice lacking NADPH 2 (NOX2) oxidase activity (gp91phox(-/Y)) were exposed to room air or to SF or IH for 6 weeks. Then, the mice were sacrificed, and atria and ventricles were immediately dissected. The abundances of Cx40 or Cx43 in atria and ventricles were unaffected by SF. In contrast, immunoblots showed that the abundance of atrial Cx40 and Cx43 and ventricular Cx43 were reduced in mice exposed to IH. qRT-PCR demonstrated significant reductions of atrial Cx40 and Cx43 mRNAs. Immunofluorescence microscopy revealed that the abundance and size of gap junctions containing Cx40 or Cx43 were reduced in atria by IH treatment of mice. However, no changes of connexin abundance or gap junction size/abundance were observed in IH-treated NOX2-null mice. CONCLUSIONS These results demonstrate that intermittent hypoxia (but not sleep fragmentation) causes reductions and remodeling of atrial Cx40 and Cx43. These alterations may contribute to the substrate for atrial fibrillation that develops in response to obstructive sleep apnea. Moreover, these connexin changes are likely generated in response to reactive oxygen species generated by NOX2.
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Affiliation(s)
- Joanna Gemel
- Department of Pediatrics, University of Chicago, 900 E. 57th St. KCBD 5152, Chicago, IL, 60637, USA
| | - Zihan Su
- Present address: Williams College, Williamstown, MA, USA
| | - Alex Gileles-Hillel
- Present address: Department of Pediatrics, Hadassah-Hebrew University Medical Center, Mt. Scopus, Jerusalem, Israel
| | - Abdelnaby Khalyfa
- Department of Pediatrics, University of Chicago, 900 E. 57th St. KCBD 5152, Chicago, IL, 60637, USA
| | - David Gozal
- Department of Pediatrics, University of Chicago, 900 E. 57th St. KCBD 5152, Chicago, IL, 60637, USA
| | - Eric C Beyer
- Department of Pediatrics, University of Chicago, 900 E. 57th St. KCBD 5152, Chicago, IL, 60637, USA.
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Genta PR, Drager LF, Lorenzi Filho G. Screening for Obstructive Sleep Apnea in Patients with Atrial Fibrillation. Sleep Med Clin 2016; 12:99-105. [PMID: 28159101 DOI: 10.1016/j.jsmc.2016.10.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Obstructive sleep apnea (OSA) and atrial fibrillation (AF) are common conditions in the adult population and independently associated with increased morbidity and mortality. There is evidence, although not definitive, that OSA independently contributes to AF incidence and recurrence. Full polysomnography is expensive and may not be readily available to diagnose all patients with OSA and AF. Several patients with OSA do not present the classical signs and symptoms of OSA, impairing the accuracy of screening questionnaires for OSA. In this context, home sleep test is a promising alternative to screen and diagnose OSA in AF patients. However, the cost-effectiveness of such approach need to be studied.
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Affiliation(s)
- Pedro R Genta
- Pulmonary Division, Heart Institute (InCor), Hospital das Clínicas, University of São Paulo School of Medicine, Av Dr. Eneas de Carvalho Aguiar, 44, 8th Floor, São Paulo, São Paulo 05403-000, Brasil
| | - Luciano F Drager
- Hypertension Unit of the Renal Division and Heart Institute (InCor), Hospital das Clínicas, University of São Paulo School of Medicine, Av Dr. Eneas de Carvalho Aguiar, 44, 8th Floor, São Paulo, São Paulo 05403-000, Brasil
| | - Geraldo Lorenzi Filho
- Pulmonary Division, Heart Institute (InCor), Hospital das Clínicas, University of São Paulo School of Medicine, Av Dr. Eneas de Carvalho Aguiar, 44, 8th Floor, São Paulo, São Paulo 05403-000, Brasil.
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47
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Automatic detection of respiratory arrests in OSA patients using PPG and machine learning techniques. Neural Comput Appl 2016. [DOI: 10.1007/s00521-016-2617-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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48
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LINZ DOMINIK, HOHL MATHIAS, KHOSHKISH SHAYAN, MAHFOUD FELIX, UKENA CHRISTIAN, NEUBERGER HANSRUPRECHT, WIRTH KLAUS, BÖHM MICHAEL. Low-Level But Not High-Level Baroreceptor Stimulation Inhibits Atrial Fibrillation in a Pig Model of Sleep Apnea. J Cardiovasc Electrophysiol 2016; 27:1086-92. [DOI: 10.1111/jce.13020] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 05/01/2016] [Accepted: 05/16/2016] [Indexed: 11/30/2022]
Affiliation(s)
- DOMINIK LINZ
- Universitätsklinikum des Saarlandes; Klinik für Innere Medizin III; Homburg Saar Germany
| | - MATHIAS HOHL
- Universitätsklinikum des Saarlandes; Klinik für Innere Medizin III; Homburg Saar Germany
| | - SHAYAN KHOSHKISH
- Universitätsklinikum des Saarlandes; Klinik für Innere Medizin III; Homburg Saar Germany
| | - FELIX MAHFOUD
- Universitätsklinikum des Saarlandes; Klinik für Innere Medizin III; Homburg Saar Germany
| | - CHRISTIAN UKENA
- Universitätsklinikum des Saarlandes; Klinik für Innere Medizin III; Homburg Saar Germany
| | | | - KLAUS WIRTH
- Sanofi-Aventis Deutschland GmbH; R&D; Frankfurt Germany
| | - MICHAEL BÖHM
- Universitätsklinikum des Saarlandes; Klinik für Innere Medizin III; Homburg Saar Germany
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49
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Linz D, Hohl M, Vollmar J, Ukena C, Mahfoud F, Böhm M. Atrial fibrillation and gastroesophageal reflux disease: the cardiogastric interaction. Europace 2016; 19:16-20. [PMID: 27247004 DOI: 10.1093/europace/euw092] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Accepted: 03/14/2016] [Indexed: 12/19/2022] Open
Abstract
Atrial fibrillation (AF) is the most common sustained arrhythmia and is associated with significant morbidity and mortality. Multiple conditions like hypertension, heart failure, diabetes, sleep apnoea, and obesity play a role for the initiation and perpetuation of AF. Recently, a potential association between gastroesophageal reflux disease (GERD) and AF development has been proposed due to the close anatomic vicinity of the oesophagus and the left atrium. As an understanding of the association between acid reflux disease and AF may be important in the global multimodal treatment strategy to further improve outcomes in a subset of patients with AF, we discuss potential atrial arrhythmogenic mechanisms in patients with GERD, such as gastric and subsequent systemic inflammation, impaired autonomic stimulation, mechanical irritation due to anatomical proximity of the left atrium and the oesophagus, as well as common comorbidities like obesity and sleep-disordered breathing. Data on GERD and oesophageal lesions after AF-ablation procedures will be reviewed. Treatment of GERD to avoid AF or to reduce AF burden might represent a future treatment perspective but needs to be scrutinized in prospective trials.
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Affiliation(s)
- Dominik Linz
- Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Kirrberger Str. 1, Geb. 40, Homburg, Saar D-66421, Germany
| | - Mathias Hohl
- Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Kirrberger Str. 1, Geb. 40, Homburg, Saar D-66421, Germany
| | - Johanna Vollmar
- Gastroenterologie, Hepatologie, Nephrologie, Rheumatologie, Infektiologie, Endokrinologie und Stoffwechselerkrankungen, Universitätsklinikum Mainz, Mainz, Germany
| | - Christian Ukena
- Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Kirrberger Str. 1, Geb. 40, Homburg, Saar D-66421, Germany
| | - Felix Mahfoud
- Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Kirrberger Str. 1, Geb. 40, Homburg, Saar D-66421, Germany
| | - Michael Böhm
- Klinik für Innere Medizin III, Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes, Kirrberger Str. 1, Geb. 40, Homburg, Saar D-66421, Germany
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50
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Automatic sleep staging in obstructive sleep apnea patients using photoplethysmography, heart rate variability signal and machine learning techniques. Neural Comput Appl 2016. [DOI: 10.1007/s00521-016-2365-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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