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Franczyk B, Rysz J, Olszewski R, Gluba-Sagr A. Do Implantable Cardioverter-Defibrillators Prevent Sudden Cardiac Death in End-Stage Renal Disease Patients on Dialysis? J Clin Med 2024; 13:1176. [PMID: 38398488 PMCID: PMC10889557 DOI: 10.3390/jcm13041176] [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: 11/06/2023] [Revised: 01/23/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Chronic kidney disease patients appear to be predisposed to heart rhythm disorders, including atrial fibrillation/atrial flutter, ventricular arrhythmias, and supraventricular tachycardias, which increase the risk of sudden cardiac death. The pathophysiological factors underlying arrhythmia and sudden cardiac death in patients with end-stage renal disease are unique and include timing and frequency of dialysis and dialysate composition, vulnerable myocardium, and acute proarrhythmic factors triggering asystole. The high incidence of sudden cardiac deaths suggests that this population could benefit from implantable cardioverter-defibrillator therapy. The introduction of implantable cardioverter-defibrillators significantly decreased the rate of all-cause mortality; however, the benefits of this therapy among patients with chronic kidney disease remain controversial since the studies provide conflicting results. Electrolyte imbalances in haemodialysis patients may result in ineffective shock therapy or the appearance of non-shockable underlying arrhythmic sudden cardiac death. Moreover, the implantation of such devices is associated with a risk of infections and central venous stenosis. Therefore, in the population of patients with heart failure and severe renal impairment, periprocedural risk and life expectancy must be considered when deciding on potential device implantation. Harmonised management of rhythm disorders and renal disease can potentially minimise risks and improve patients' outcomes and prognosis.
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Affiliation(s)
- Beata Franczyk
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-419 Lodz, Poland; (B.F.); (J.R.)
| | - Jacek Rysz
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-419 Lodz, Poland; (B.F.); (J.R.)
| | - Robert Olszewski
- Department of Gerontology, Public Health and Didactics, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland;
| | - Anna Gluba-Sagr
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-419 Lodz, Poland; (B.F.); (J.R.)
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2
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van Ham WB, Cornelissen CM, van Veen TAB. Uremic toxins in chronic kidney disease highlight a fundamental gap in understanding their detrimental effects on cardiac electrophysiology and arrhythmogenesis. Acta Physiol (Oxf) 2022; 236:e13888. [PMID: 36148604 PMCID: PMC9787632 DOI: 10.1111/apha.13888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 09/09/2022] [Accepted: 09/18/2022] [Indexed: 01/29/2023]
Abstract
Chronic kidney disease (CKD) and cardiovascular disease (CVD) have an estimated 700-800 and 523 million cases worldwide, respectively, with CVD being the leading cause of death in CKD patients. The pathophysiological interplay between the heart and kidneys is defined as the cardiorenal syndrome (CRS), in which worsening of kidney function is represented by increased plasma concentrations of uremic toxins (UTs), culminating in dialysis patients. As there is a high incidence of CVD in CKD patients, accompanied by arrhythmias and sudden cardiac death, knowledge on electrophysiological remodeling would be instrumental for understanding the CRS. While the interplay between both organs is clearly of importance in CRS, the involvement of UTs in pro-arrhythmic remodeling is only poorly investigated, especially regarding the mechanistic background. Currently, the clinical approach against potential arrhythmic events is mainly restricted to symptom treatment, stressing the need for fundamental research on UT in relation to electrophysiology. This review addresses the existing knowledge of UTs and cardiac electrophysiology, and the experimental research gap between fundamental research and clinical research of the CRS. Clinically, mainly absorbents like ibuprofen and AST-120 are studied, which show limited safe and efficient usability. Experimental research shows disturbances in cardiac electrical activation and conduction after inducing CKD or exposure to UTs, but are scarcely present or focus solely on already well-investigated UTs. Based on UTs data derived from CKD patient cohort studies, a clinically relevant overview of physiological and pathological UTs concentrations is created. Using this, future experimental research is stimulated to involve electrophysiologically translatable animals, such as rabbits, or in vitro engineered heart tissues.
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Affiliation(s)
- Willem B. van Ham
- Department of Medical Physiology, Division Heart & LungsUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Carlijn M. Cornelissen
- Department of Medical Physiology, Division Heart & LungsUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Toon A. B. van Veen
- Department of Medical Physiology, Division Heart & LungsUniversity Medical Center UtrechtUtrechtThe Netherlands
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3
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Lin TT, Sung YL, Syu JY, Lin KY, Hsu HJ, Liao MT, Liu YB, Lin SF. Anti-Inflammatory and Antiarrhythmic Effects of Beta Blocker in a Rat Model of Rheumatoid Arthritis. J Am Heart Assoc 2020; 9:e016084. [PMID: 32865101 PMCID: PMC7726976 DOI: 10.1161/jaha.120.016084] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background Patients with rheumatoid arthritis are at twice the risk of ventricular arrhythmia and sudden cardiac death as the general population. We hypothesize that β‐blocker treatment of rheumatoid arthritis is antiarrhythmic by producing synergistic anticatecholaminergic and anti‐inflammatory effects. Methods and Results Collagen‐induced arthritis (CIA) was induced in Lewis rats by immunization with type II collagen in Freund's incomplete adjuvant. The treatment with propranolol (4 mg/kg) started on the first day of immunization. We evaluated the ventricular vulnerability to ventricular arrhythmia using in vivo programmed stimulation and performed ex vivo optical mapping to measure the electrical remodeling of the heart. The ventricular tissue was further processed for immunohistochemical staining and protein array analysis. The assessment of ventricular vulnerability showed that the number and duration of the induced ventricular arrhythmia episodes were increased in CIA rats, which were improved with propranolol treatment. The sympathovagal index and the plasma level of catecholamines significantly increased in CIA rats, whereas the use of propranolol attenuated sympathetic hyperactivity. In the optical mapping study, electrical remodeling, characterized by prolonged action potential duration, slow conduction velocity, and steepened action‐potential duration restitution, were noted in CIA rats and reversed in the propranolol‐treatment group. The propranolol treatment was associated with decreases in paw thickness, fewer inflammatory cell infiltrations in the heart, reduced levels of cardiac inflammatory cytokines, and less cardiac fibrosis as compared with the CIA group. Conclusions CIA increased ventricular arrhythmia vulnerability through sympathetic hyperinnervation and proarrhythmic ventricular electrophysiological remodeling. Treatment with propranolol in CIA rats was both anti‐inflammatory and antiarrhythmic.
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Affiliation(s)
- Ting-Tse Lin
- Department of Internal Medicine National Taiwan University Hospital Hsinchu and Biomedical Park Branch Hsinchu Taiwan.,College of Medicine National Taiwan University Taipei Taiwan.,Institute of Biomedical Engineering College of Electrical and Computer Engineering National Chiao Tung University Hsinchu Taiwan
| | - Yen-Ling Sung
- Institute of Biomedical Engineering College of Electrical and Computer Engineering National Chiao Tung University Hsinchu Taiwan.,Department of Electrical and Computer Engineering National Chiao Tung University Hsinchu Taiwan
| | - Jhen-Yang Syu
- Institute of Biomedical Engineering College of Electrical and Computer Engineering National Chiao Tung University Hsinchu Taiwan
| | - Kia-Yuan Lin
- Institute of Biomedical Engineering College of Electrical and Computer Engineering National Chiao Tung University Hsinchu Taiwan
| | - Hung-Jui Hsu
- Institute of Biomedical Engineering College of Electrical and Computer Engineering National Chiao Tung University Hsinchu Taiwan
| | - Min-Tsun Liao
- Department of Internal Medicine National Taiwan University Hospital Hsinchu and Biomedical Park Branch Hsinchu Taiwan
| | - Yen-Bin Liu
- Division of Cardiology Department of Internal Medicine National Taiwan University Hospital Taipei Taiwan
| | - Shien-Fong Lin
- Institute of Biomedical Engineering College of Electrical and Computer Engineering National Chiao Tung University Hsinchu Taiwan
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Loewe A, Lutz Y, Nairn D, Fabbri A, Nagy N, Toth N, Ye X, Fuertinger DH, Genovesi S, Kotanko P, Raimann JG, Severi S. Hypocalcemia-Induced Slowing of Human Sinus Node Pacemaking. Biophys J 2019; 117:2244-2254. [PMID: 31570229 PMCID: PMC6990151 DOI: 10.1016/j.bpj.2019.07.037] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 06/27/2019] [Accepted: 07/24/2019] [Indexed: 12/13/2022] Open
Abstract
Each heartbeat is initiated by cyclic spontaneous depolarization of cardiomyocytes in the sinus node forming the primary natural pacemaker. In patients with end-stage renal disease undergoing hemodialysis, it was recently shown that the heart rate drops to very low values before they suffer from sudden cardiac death with an unexplained high incidence. We hypothesize that the electrolyte changes commonly occurring in these patients affect sinus node beating rate and could be responsible for severe bradycardia. To test this hypothesis, we extended the Fabbri et al. computational model of human sinus node cells to account for the dynamic intracellular balance of ion concentrations. Using this model, we systematically tested the effect of altered extracellular potassium, calcium, and sodium concentrations. Although sodium changes had negligible (0.15 bpm/mM) and potassium changes mild effects (8 bpm/mM), calcium changes markedly affected the beating rate (46 bpm/mM ionized calcium without autonomic control). This pronounced bradycardic effect of hypocalcemia was mediated primarily by ICaL attenuation due to reduced driving force, particularly during late depolarization. This, in turn, caused secondary reduction of calcium concentration in the intracellular compartments and subsequent attenuation of inward INaCa and reduction of intracellular sodium. Our in silico findings are complemented and substantiated by an empirical database study comprising 22,501 pairs of blood samples and in vivo heart rate measurements in hemodialysis patients and healthy individuals. A reduction of extracellular calcium was correlated with a decrease of heartrate by 9.9 bpm/mM total serum calcium (p < 0.001) with intact autonomic control in the cross-sectional population. In conclusion, we present mechanistic in silico and empirical in vivo data supporting the so far neglected but experimentally testable and potentially important mechanism of hypocalcemia-induced bradycardia and asystole, potentially responsible for the highly increased and so far unexplained risk of sudden cardiac death in the hemodialysis patient population.
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Affiliation(s)
- Axel Loewe
- Institute of Biomedical Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.
| | - Yannick Lutz
- Institute of Biomedical Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Deborah Nairn
- Institute of Biomedical Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Alan Fabbri
- Department of Electrical, Electronic and Information Engineering "Guglielmo Marconi," University of Bologna, Cesena, Italy; Department of Medical Physiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Norbert Nagy
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary
| | - Noemi Toth
- Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged, Hungary
| | - Xiaoling Ye
- Renal Research Institute, New York City, New York
| | | | - Simonetta Genovesi
- Department of Medicine and Surgery, Università degli Studi di Milano-Bicocca, Monza, Italy
| | - Peter Kotanko
- Renal Research Institute, New York City, New York; Icahn School of Medicine at Mount Sinai, New York City, New York
| | | | - Stefano Severi
- Department of Electrical, Electronic and Information Engineering "Guglielmo Marconi," University of Bologna, Cesena, Italy
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5
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Poulikakos D, Hnatkova K, Skampardoni S, Green D, Kalra P, Malik M. Sudden Cardiac Death in Dialysis: Arrhythmic Mechanisms and the Value of Non-invasive Electrophysiology. Front Physiol 2019; 10:144. [PMID: 30873044 PMCID: PMC6401645 DOI: 10.3389/fphys.2019.00144] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Accepted: 02/07/2019] [Indexed: 01/10/2023] Open
Abstract
Sudden Cardiac Death (SCD) is the leading cause of cardiovascular death in dialysis patients. This review discusses potential underlying arrhythmic mechanisms of SCD in the dialysis population. It examines recent evidence from studies using implantable loop recorders and from electrophysiological studies in experimental animal models of chronic kidney disease. The review summarizes advances in the field of non-invasive electrophysiology for risk prediction in dialysis patients focusing on the predictive value of the QRS-T angle and of the assessments of autonomic imbalance by means of heart rate variability analysis. Future research directions in non-invasive electrophysiology are identified to advance the understanding of the arrhythmic mechanisms. A suggestion is made of incorporation of non-invasive electrophysiology procedures into clinical practice. Key Concepts: - Large prospective studies in dialysis patients with continuous ECG monitoring are required to clarify the underlying arrhythmic mechanisms of SCD in dialysis patients. - Obstructive sleep apnoea may be associated with brady-arrhythmias in dialysis patients. Studies are needed to elucidate the burden and impact of sleeping disorders on arrhythmic complications in dialysis patients. - The QRS-T angle has the potential to be used as a descriptor of uremic cardiomyopathy. - The QRS-T angle can be calculated from routine collected surface ECGs. Multicenter collaboration is required to establish best methodological approach and normal values. - Heart Rate Variability provides indirect assessment of cardiac modulation that may be relevant for cardiac risk prediction in dialysis patients. Short-term recordings with autonomic provocations are likely to overcome the limitations of out of hospital 24-h recordings and should be prospectively assessed.
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Affiliation(s)
- Dimitrios Poulikakos
- Renal Department, Salford Royal NHS Foundation Trust, Salford, United Kingdom
- Centre for Cardiac Research, Institute of Cardiovascular Sciences, The University of Manchester, Manchester, United Kingdom
| | - Katerina Hnatkova
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Sofia Skampardoni
- Renal Department, Salford Royal NHS Foundation Trust, Salford, United Kingdom
- Centre for Cardiac Research, Institute of Cardiovascular Sciences, The University of Manchester, Manchester, United Kingdom
| | - Darren Green
- Renal Department, Salford Royal NHS Foundation Trust, Salford, United Kingdom
- Centre for Cardiac Research, Institute of Cardiovascular Sciences, The University of Manchester, Manchester, United Kingdom
| | - Philip Kalra
- Renal Department, Salford Royal NHS Foundation Trust, Salford, United Kingdom
- Centre for Cardiac Research, Institute of Cardiovascular Sciences, The University of Manchester, Manchester, United Kingdom
| | - Marek Malik
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
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6
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Tereshchenko LG, Posnack NG. Does plastic chemical exposure contribute to sudden death of patients on dialysis? Heart Rhythm 2018; 16:312-317. [PMID: 30144582 DOI: 10.1016/j.hrthm.2018.08.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Larisa G Tereshchenko
- Oregon Health and Science University, Knight Cardiovascular Institute, Portland, Oregon.
| | - Nikki G Posnack
- Children's National Health System, Sheikh Zayed Institute, Heart Institute, Washington, District of Columbia
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Thomsen MB, Nielsen MS, Aarup A, Bisgaard LS, Pedersen TX. Uremia increases QRS duration after β-adrenergic stimulation in mice. Physiol Rep 2018; 6:e13720. [PMID: 29984555 PMCID: PMC6036105 DOI: 10.14814/phy2.13720] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 04/28/2018] [Indexed: 01/14/2023] Open
Abstract
Chronic kidney disease (CKD) and uremia increase the risk of heart disease and sudden cardiac death. Coronary artery disease can only partly account for this. The remaining mechanistic links between CKD and sudden death are elusive, but may involve cardiac arrhythmias. For the present study, we hypothesized that a thorough electrophysiological study in mice with CKD would provide us valuable information that could aid in the identification of additional underlying causes of sudden cardiac death in patients with kidney disease. Partial (5/6) nephrectomy (NX) in mice induced mild CKD: plasma urea in NX was 24 ± 1 mmol/L (n = 23) versus 12 ± 1 mmol/L (n = 22) in sham-operated control mice (P < 0.05). Echocardiography did not identify structural or mechanical remodeling in NX mice. Baseline ECG parameters were comparable in conscious NX and control mice; however, the normal 24-h diurnal rhythm in QRS duration was lost in NX mice. Moreover, β-adrenergic stimulation (isoprenaline, 200 μg/kg intraperitoneally) prolonged QRS duration in conscious NX mice (from 12 ± 1 to 15 ± 2 msec, P < 0.05), but not in sham-operated controls (from 13 ± 1 to 13 ± 2 msec, P > 0.05). No spontaneous arrhythmias were observed in conscious NX mice, and intracardiac pacing in anesthetized mice showed a comparable arrhythmia vulnerability in NX and sham-operated mice. Isoprenaline (2 mg/kg intraperitoneally) changed the duration of the QRS complex from 11.2 ± 0.4 to 11.9 ± 0.5 (P = 0.06) in NX mice and from 10.7 ± 0.6 to 10.6 ± 0.6 (P = 0.50) in sham-operated mice. Ex vivo measurements of cardiac ventricular conduction velocity were comparable in NX and sham mice. Transcriptional activity of Scn5a, Gja1 and several profibrotic genes was similar in NX and sham mice. We conclude that proper kidney function is necessary to maintain diurnal variation in QRS duration and that sympathetic regulation of the QRS duration is altered in kidney disease.
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Affiliation(s)
- Morten B. Thomsen
- Department of Biomedical SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Morten S. Nielsen
- Department of Biomedical SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Annemarie Aarup
- Department of Biomedical SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Line S. Bisgaard
- Department of Biomedical SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Tanja X. Pedersen
- Department of Biomedical SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
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8
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Abstract
Disordered calcium balance and homeostasis are common in patients with chronic kidney disease. Such alterations are commonly associated with abnormal bone remodeling, directly and indirectly. Similarly, positive calcium balance may also be a factor in the pathogenesis of extra skeletal soft tissue and arterial calcification. Calcium may directly affect cardiac structure and function through direct effects to alter cell signaling due to abnormal intracellular calcium homeostasis 2) extra-skeletal deposition of calcium and phosphate in the myocardium and small cardiac arterioles, 3) inducing cardiomyocyte hypertrophy through calcium and hormone activation of NFAT signaling mechanisms, and 4) increased aorta calcification resulting in chronic increased afterload leading to hypertrophy. Similarly, calcium may alter vascular smooth muscle cell function and affect cell signaling which may predispose to a proliferative phenotype important in arteriosclerosis and arterial calcification. Thus, disorders of calcium balance and homeostasis due to CKD-MBD may play a role in the high cardiovascular burden observed in patients with CKD.
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Affiliation(s)
- Sharon M Moe
- Indiana University School of Medicine, Division of Nephrology, Indianapolis, IN, United States; Department of Medicine, Roudebush Veterans Affairs Medical Center, Indianapolis, IN, United States.
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9
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Fu L, Zhou Q, Zhu W, Lin H, Ding Y, Shen Y, Hu J, Hong K. Do Implantable Cardioverter Defibrillators Reduce Mortality in Patients With Chronic Kidney Disease at All Stages? Int Heart J 2017; 58:371-377. [PMID: 28539571 DOI: 10.1536/ihj.16-357] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
The benefits of implantable cardioverter defibrillator (ICD) implantation in chronic kidney disease (CKD) patients with high sudden cardiac death (SCD) risk are uncertain. To clarify the effects of receiving an ICD in CKD patients, we conducted this meta-analysis to identify the effects of ICDs on patients with CKD, including those on dialysis. We searched the Cochrane library, EMBASE, PubMed, and clinical trials for studies published before July 2016. Eleven studies including 20,196 CKD patients were considered for inclusion. The pooled analysis suggested that patients with an estimated glomerular filtration rate (eGFR) < 60 mL/minute/1.73 m2 would benefit from receiving treatments with ICDs compared with patients without an ICD device (aHR = 0.74; 95% confidence interval [CI], 0.63 to 0.86). [corrected]. This is the first report of a subgroup analysis on the survival rate of ICD implantation in CKD patients according to an eGFR group. The subgroup analysis indicated a similar protective association of ICDs in stage 3 (aHR = 0.71; 95% CI, 0.61 to 0.82) and 5 (aHR = 0.71; 95% CI, 0.54 to 0.92) CKD patients [corrected] compared with the control group. However, there was no significant improvement in all-cause mortality in stage 4 CKD patients (aHR = 1.02; 95%CI, 0.75 to 1.37) [corrected]. This is the first meta-analysis reporting that ICD implantation reduces all-cause mortality in stage 3 and 5 [corrected] CKD patients. However, the data do not indicate there is any benefit to ICD implantation in stage 4 [corrected] CKD patients.
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MESH Headings
- Death, Sudden, Cardiac/epidemiology
- Death, Sudden, Cardiac/etiology
- Death, Sudden, Cardiac/prevention & control
- Defibrillators, Implantable
- Global Health
- Humans
- Incidence
- Registries
- Renal Insufficiency, Chronic/complications
- Renal Insufficiency, Chronic/diagnosis
- Renal Insufficiency, Chronic/mortality
- Risk Assessment
- Risk Factors
- Survival Rate/trends
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Affiliation(s)
- Linghua Fu
- Department of Cardiovascular Medicine, the Second Affiliated Hospital of Nanchang University
| | - Qiongqiong Zhou
- Department of Cardiovascular Medicine, the Second Affiliated Hospital of Nanchang University
| | - Wengen Zhu
- Department of Cardiovascular Medicine, the Second Affiliated Hospital of Nanchang University
| | - Huang Lin
- Department of Cardiovascular Medicine, the Second Affiliated Hospital of Nanchang University
| | - Ying Ding
- Department of Cardiovascular Medicine, the Second Affiliated Hospital of Nanchang University
| | - Yang Shen
- Department of Cardiovascular Medicine, the Second Affiliated Hospital of Nanchang University
| | - Jinzhu Hu
- Department of Cardiovascular Medicine, the Second Affiliated Hospital of Nanchang University
| | - Kui Hong
- Department of Cardiovascular Medicine, the Second Affiliated Hospital of Nanchang University
- Jiangxi Key Laboratory of Molecular Medicine
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10
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Doytchinova A, Hassel JL, Yuan Y, Lin H, Yin D, Adams D, Straka S, Wright K, Smith K, Wagner D, Shen C, Salanova V, Meshberger C, Chen LS, Kincaid JC, Coffey AC, Wu G, Li Y, Kovacs RJ, Everett TH, Victor R, Cha YM, Lin SF, Chen PS. Simultaneous noninvasive recording of skin sympathetic nerve activity and electrocardiogram. Heart Rhythm 2016; 14:25-33. [PMID: 27670627 DOI: 10.1016/j.hrthm.2016.09.019] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND Sympathetic nerve activity is important to cardiac arrhythmogenesis. OBJECTIVE The purpose of this study was to develop a method for simultaneous noninvasive recording of skin sympathetic nerve activity (SKNA) and electrocardiogram (ECG) using conventional ECG electrodes. This method (neuECG) can be used to adequately estimate sympathetic tone. METHODS We recorded neuECG signals from the skin of 56 human subjects. The signals were low-pass filtered to show the ECG and high-pass filtered to show nerve activity. Protocol 1 included 12 healthy volunteers who underwent cold water pressor test and Valsalva maneuver. Protocol 2 included 19 inpatients with epilepsy but without known heart diseases monitored for 24 hours. Protocol 3 included 22 patients admitted with electrical storm and monitored for 39.0 ± 28.2 hours. Protocol 4 included 3 patients who underwent bilateral stellate ganglion blockade with lidocaine injection. RESULTS In patients without heart diseases, spontaneous nerve discharges were frequently observed at baseline and were associated with heart rate acceleration. SKNA recorded from chest leads (V1-V6) during cold water pressor test and Valsalva maneuver (protocol 1) was invariably higher than during baseline and recovery periods (P < .001). In protocol 2, the average SKNA correlated with heart rate acceleration (r = 0.73 ± 0.14, P < .05) and shortening of QT interval (P < .001). Among 146 spontaneous ventricular tachycardia episodes recorded in 9 patients of protocol 3, 106 episodes (73%) were preceded by SKNA within 30 seconds of onset. Protocol 4 showed that bilateral stellate ganglia blockade by lidocaine inhibited SKNA. CONCLUSION SKNA is detectable using conventional ECG electrodes in humans and may be useful in estimating sympathetic tone.
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Affiliation(s)
- Anisiia Doytchinova
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jonathan L Hassel
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Yuan Yuan
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hongbo Lin
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Dechun Yin
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - David Adams
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Susan Straka
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Keith Wright
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Kimberly Smith
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - David Wagner
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Changyu Shen
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Vicenta Salanova
- Department of Neurology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Chad Meshberger
- Department of Neurology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Lan S Chen
- Department of Neurology, Indiana University School of Medicine, Indianapolis, Indiana
| | - John C Kincaid
- Department of Neurology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Arthur C Coffey
- Division of Cardiothoracic Surgery, Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Gang Wu
- Division of Cardiovascular Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yan Li
- Department of Geriatrics, Shengjing Hospital, China Medical University, Shenyang, China
| | - Richard J Kovacs
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Thomas H Everett
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Ronald Victor
- Cedars-Sinai Heart Institute/Hypertension Center(,) Los Angeles, California
| | - Yong-Mei Cha
- Division of Cardiovascular Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Shien-Fong Lin
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Institute of Biomedical Engineering, National Chiao-Tung University, Hsin-Chu, Taiwan
| | - Peng-Sheng Chen
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.
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