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Hu W, Zhang W, Zhang K, Al-Moubarak E, Zhang Y, Harmer SC, Hancox JC, Zhang H. Evaluating pro-arrhythmogenic effects of the T634S-hERG mutation: insights from a simulation study. Interface Focus 2023; 13:20230035. [PMID: 38106919 PMCID: PMC10722218 DOI: 10.1098/rsfs.2023.0035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 11/06/2023] [Indexed: 12/19/2023] Open
Abstract
A mutation to serine of a conserved threonine (T634S) in the hERG K+ channel S6 pore region has been identified as a variant of uncertain significance, showing a loss-of-function effect. However, its potential consequences for ventricular excitation and arrhythmogenesis have not been reported. This study evaluated possible functional effects of the T634S-hERG mutation on ventricular excitation and arrhythmogenesis by using multi-scale computer models of the human ventricle. A Markov chain model of the rapid delayed rectifier potassium current (IKr) was reconstructed for wild-type and T634S-hERG mutant conditions and incorporated into the ten Tusscher et al. models of human ventricles at cell and tissue (1D, 2D and 3D) levels. Possible functional impacts of the T634S-hERG mutation were evaluated by its effects on action potential durations (APDs) and their rate-dependence (APDr) at the cell level; and on the QT interval of pseudo-ECGs, tissue vulnerability to unidirectional conduction block (VW), spiral wave dynamics and repolarization dispersion at the tissue level. It was found that the T634S-hERG mutation prolonged cellular APDs, steepened APDr, prolonged the QT interval, increased VW, destablized re-entry and augmented repolarization dispersion across the ventricle. Collectively, these results imply potential pro-arrhythmic effects of the T634S-hERG mutation, consistent with LQT2.
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Affiliation(s)
- Wei Hu
- Biological Physics Group, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
| | - Wenfeng Zhang
- College of Computer and Information Science, Chongqing Normal University, Chongqing, People's Republic of China
| | - Kevin Zhang
- Southmead Hospital, North Bristol Trust, Bristol, UK
| | - Ehab Al-Moubarak
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Biomedical Sciences Building, University Walk, Bristol BS8 1TD, UK
| | - Yihong Zhang
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Biomedical Sciences Building, University Walk, Bristol BS8 1TD, UK
| | - Stephen C. Harmer
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Biomedical Sciences Building, University Walk, Bristol BS8 1TD, UK
| | - Jules C. Hancox
- Biological Physics Group, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Biomedical Sciences Building, University Walk, Bristol BS8 1TD, UK
| | - Henggui Zhang
- Biological Physics Group, Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, People's Republic of China
- Beijing Academy of Artificial Intelligence, Beijing 100084, People's Republic of China
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2
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Zubiaur J, Herrero-Morant A, Margarida de Castro A, Pérez-Barquín R, Ferraz-Amaro I, Loricera J, Castañeda S, Blanco R. Association between cumulative dose of hydroxychloroquine and electrocardiographic abnormalities in patients with systemic lupus erythematosus. Eur J Intern Med 2023; 112:70-76. [PMID: 36948977 DOI: 10.1016/j.ejim.2023.03.014] [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: 01/22/2023] [Revised: 03/07/2023] [Accepted: 03/10/2023] [Indexed: 03/24/2023]
Abstract
OBJECTIVE Hydroxychloroquine (HCQ) is one of the most used drugs in patients with systemic lupus erythematosus (SLE). In these patients, where heart involvement is common, cardiac HCQ toxicity may lead to fatal outcomes. The aim of this work is to study the influence of cumulative HCQ (cHCQ) in a selected group of patients with SLE and its association with electrocardiographic (EKG) abnormalities. METHODS Single-center retrospective, observational study in which data were collected from the medical records of consecutive patients with a diagnosis of SLE who started treatment with HCQ and who had a 12-lead EKG before starting treatment and during follow-up. EKG abnormalities were grouped as conduction or structural abnormalities. The association of cHCQ with the occurrence of EKG disturbances was analyzed together with other demographic and clinical variables through univariate and multivariate logistic regression models. RESULTS 105 patients were selected with median cHCQ of 913 g. The sample was classified into two groups, above or below 913 g. Significantly, more conduction disturbances were observed in the group above the median (OR: 2.89; 95%CI: 1.01-8.23). In the multivariate analysis, the OR per 100 g of cHCQ dose was 1.06 (95%CI: 0.99-1.14). Age was the only variable associated with conduction disturbances. There were no significant differences in the development of structural abnormalities and a tendency for more high-grade atrioventricular block was shown. CONCLUSION Our study suggests an association between the cHCQ and the development of EKG conduction disturbances that disappears after multivariate adjustment. No increased number of structural abnormalities was observed.
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Affiliation(s)
- Jon Zubiaur
- Cardiology, Hospital Universitario Marqués de Valdecilla, IDIVAL, University of Cantabria, Santander, Spain
| | - Alba Herrero-Morant
- Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, University of Cantabria, Avda. Valdecilla s/n., ES, Santander 39008, Spain
| | - Adrián Margarida de Castro
- Cardiology, Hospital Universitario Marqués de Valdecilla, IDIVAL, University of Cantabria, Santander, Spain
| | - Raquel Pérez-Barquín
- Cardiology, Hospital Universitario Marqués de Valdecilla, IDIVAL, University of Cantabria, Santander, Spain
| | | | - Javier Loricera
- Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, University of Cantabria, Avda. Valdecilla s/n., ES, Santander 39008, Spain
| | - Santos Castañeda
- Rheumatology, Hospital Universitario de La Princesa and IIS-IPrincesa, Madrid, Spain
| | - Ricardo Blanco
- Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, University of Cantabria, Avda. Valdecilla s/n., ES, Santander 39008, Spain.
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Armbruster AL, Campbell KB, Kahanda MG, Cuculich PS. The role of inflammation in the pathogenesis and treatment of arrhythmias. Pharmacotherapy 2022; 42:250-262. [PMID: 35098555 DOI: 10.1002/phar.2663] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 11/30/2021] [Accepted: 12/03/2021] [Indexed: 12/20/2022]
Abstract
The pathogenesis of arrhythmias is complex and multifactorial. The role of inflammation in the pathogenesis of both atrial and ventricular arrhythmias (VA) has been explored. However, developing successful pharmacotherapy regimens based on those pathways has proven more of a challenge. This narrative review provides an overview of five common arrhythmias impacted by inflammation, including atrial fibrillation (AF), myocardial infarction, arrhythmogenic cardiomyopathy, cardiac sarcoidosis, and QT prolongation, and the potential role for anti-inflammatory therapy in their management. We identified arrhythmias and arrhythmogenic disease states with the most evidence linking pathogenesis to inflammation and conducted comprehensive searches of United States National Library of Medicine MEDLINE® and PubMed databases. Although a variety of agents have been studied for the management of AF, primarily in an effort to reduce postoperative AF following cardiac surgery, no standard anti-inflammatory agents are used in clinical practice at this time. Although inflammation following myocardial infarction may contribute to the development of VA, there is no clear benefit with the use of anti-inflammatory agents at this time. Similarly, although inflammation is clearly linked to the development of arrhythmias in arrhythmogenic cardiomyopathy, data demonstrating a benefit with anti-inflammatory agents are limited. Cardiac sarcoidosis, an infiltrative disease eliciting an immune response, is primarily treated by immunosuppressive therapy and steroids, despite a lack of primary literature to support such regimens. In this case, anti-inflammatory agents are frequently used in clinical practice. The pathophysiology of arrhythmias is complex, and inflammation likely plays a role in both onset and duration, however, for most arrhythmias the role of pharmacotherapy targeting inflammation remains unclear.
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Affiliation(s)
- Anastasia L Armbruster
- St. Louis College of Pharmacy, University of Health Sciences and Pharmacy in St. Louis, St. Louis, Missouri, USA
| | | | - Milan G Kahanda
- Cardiovascular Division, Department of Internal Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
| | - Phillip S Cuculich
- Cardiovascular Division, Department of Internal Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
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4
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Plastiras SC, Moutsopoulos HM. Arrhythmias and Conduction Disturbances in Autoimmune Rheumatic Disorders. Arrhythm Electrophysiol Rev 2021; 10:17-25. [PMID: 33936739 PMCID: PMC8076972 DOI: 10.15420/aer.2020.43] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Rhythm and conduction disturbances and sudden cardiac death are important manifestations of cardiac involvement in autoimmune rheumatic diseases (ARD), which have a serious impact on morbidity and mortality. While the underlying arrhythmogenic mechanisms are multifactorial, myocardial fibrosis plays a pivotal role. It accounts for a substantial portion of cardiac mortality and may manifest as atrial and ventricular arrhythmias, conduction system abnormalities, biventricular cardiac failure or sudden death. In patients with ARD, myocardial fibrosis is considered to be the hallmark of cardiac involvement as a result of inflammatory process or to coronary artery occlusive disease. Myocardial fibrosis constitutes the pathological substrates for reentrant circuits. The presence of supraventricular extra systoles, tachyarrhythmias, ventricular activity and conduction disturbances are not uncommon in patients with ARDs, more often in systemic lupus erythematosus, systemic sclerosis, rheumatoid arthritis, inflammatory muscle disorders and anti-neutrophil cytoplasm antibody-associated vasculitis. In this review, the type, the relative prevalence and the underlying mechanisms of rhythm and conduction disturbances in the emerging field of cardiorheumatology are provided.
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Affiliation(s)
- Sotiris C Plastiras
- Echocardiography Unit, Bioiatriki SA, Bioiatriki Healthcare Group, Athens, Greece
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5
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Keskin G, Karaman ST, Basat O. Evaluation of the relationship between the level of addiction and exhaled carbon monoxide levels with QT dispersion in smokers. Tob Induc Dis 2021; 19:22. [PMID: 33815033 PMCID: PMC8010797 DOI: 10.18332/tid/133053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Smoking increases the risk of arrhythmia. QT dispersion (QTd) is an important indicator for the determination of ventricular arrhythmia. In this study, we aimed to determine the arrhythmia risk by evaluating QTd in smokers and to assess the relationship between the level of nicotine addiction and carbon monoxide (CO) level in the expiratory air. METHODS This study was designed as a single-center, cross-sectional study. Among the chronic smokers referred to the Smoking Cessation Clinic of a tertiary hospital between October 2019 and January 2020, all those who had no risk factors for cardiac arrhythmias, except smoking, were included in the study. Sociodemographic data and smoking characteristics of the participants were collected and exhaled CO levels were measured. QT intervals were measured in all leads by using a 12-lead standard electrocardiogram (ECG), and heart rate corrected QT (QTc) intervals, QT dispersion (QTd), and corrected QT dispersion (QTcd) were calculated. RESULTS The mean age of the 250 patients was 37.2±9.3 years and the majority of patients (65%) were male. The mean amount of smoking was 25.74±16.03 packs/year and the mean value of CO was 12.36±7.06 ppm. The mean QTd was 23.83±13.12 ms, and the mean QTcd was 26.63±15.02 ms. A statistically significant relationship was found between QTd and QTcd and level of addiction, consumption of sticks/day and packs/year, and exhaled CO values (all p<0.001). CONCLUSIONS It was found that as the level of addiction, cigarette use amount, exhaled CO levels, and BMI increased in smokers, QT dispersion and arrhythmia risk increased.
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Affiliation(s)
- Gamze Keskin
- Gaziosmanpaşa Training and Research Hospital, Department of Family Medicine, University of Health Sciences, Istanbul, Turkey
| | - Sibel Tunç Karaman
- Gaziosmanpaşa Training and Research Hospital, Department of Family Medicine, University of Health Sciences, Istanbul, Turkey
| | - Okcan Basat
- Gaziosmanpaşa Training and Research Hospital, Department of Family Medicine, University of Health Sciences, Istanbul, Turkey
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6
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Butt S, Kiran S, Qadir N, Menghani D, Tanzeem H. Cardiac Conduction Defects in Systemic Lupus Erythematosus. Cureus 2020; 12:e10882. [PMID: 33178534 PMCID: PMC7652344 DOI: 10.7759/cureus.10882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Systemic autoimmune conditions may cause morbidity and mortality. Systemic lupus erythematosus (SLE) is a prominent example of such diseases. It can result in conduction abnormalities due to accelerated atherosclerosis, vasculitis, or autoantibodies-induced myocarditis. Cardiac conduction abnormalities may produce sinus tachycardia, sinus bradycardia, prolonged QT intervals, atrial fibrillation, or atrioventricular (AV) nodal blocks. Neonatal lupus is sometimes associated with anti-Ro/SSA and anti-La/SSB antibodies, but their role remains a matter of controversy in adults.
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Affiliation(s)
- Shayan Butt
- Internal Medicine, Baptist Memorial Hospital, Oxford, USA
| | - Simra Kiran
- Pulmonology and Critical Care, University of Cincinnati Medical Center, Cincinnati, USA
| | - Nida Qadir
- Infectious Diseases, University of Louisville, Louisville, USA
| | - Divya Menghani
- Infectious Diseases, University of Louisville, Louisville, USA
| | - Hammad Tanzeem
- Medicine, Dow Medical College/Civil Hospital, Karachi, PAK
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7
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Bienias P, Ciurzyński M, Kisiel B, Chrzanowska A, Kalińska-Bienias A, Ciesielska K, Saracyn M, Lisicka M, Radochońska J, Pruszczyk P. Influence of disease severity and cardiac autonomic tone on ventricular repolarization and dispersion in electrocardiographic assessment of patients with systemic lupus erythematosus. Lupus 2020; 29:913-923. [DOI: 10.1177/0961203320928402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background There are no data on the influence of disease severity and cardiac autonomic tone on ventricular repolarization and dispersion in 24-hour Holter monitoring in systemic lupus erythematosus (SLE). Methods Consecutive 92 SLE and 51 healthy subjects were studied. The standard 12-lead electrocardiography (ECG), Holter monitoring with heart rate turbulence (HRT) and QT, Tp-e and Tp-e/QT ratio assessment (including corrected values) were performed. Subjects with conditions causing repolarization abnormalities or insufficient number of beats suitable for QT evaluation were excluded (17 SLE and 8 controls). Results Finally, 75 SLE and 43 sex- and age-matched controls were included to the study. In SLE patients, the median disease severity score (Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index (SLICC/ACR-DI)) was 3.0. The mean values of QTc, cTp-e and cTp-e/QTc were significantly higher in SLE patients than in controls. QTc ≥ 460 ms was observed in 18.7% of patients using standard ECG and in 58.7% using Holter monitoring. With Holter monitoring, patients with SLICC/ACR-DI >3.0 presented longer QTc than those with SLICC/ACR-DI ≤3.0 (418±15 vs. 409 ± 16, p = 0.04), while cTp-e and cTp-e/QTc values were similar. Patients with abnormal HRT presented longer cTp-e and higher cTp-e/QTc than those with normal HRT (92 ± 52 vs. 71 ± 16 ms, p = 0.04; 0.244 ± 0.126 vs. 0.187 ± 0.035, p = 0.03), while QTc values were similar. No differences in QT and Tp-e parameters were observed according to disease duration. Conclusion In SLE patients, Holter monitoring revealed QTc prolongation more frequently than standard ECG. Longer QTc values were observed in patients with more advanced disease, while increased cTp-e and cTp-e/QTc were related to cardiac autonomic dysfunction expressed by abnormal HRT.
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Affiliation(s)
- Piotr Bienias
- Department of Internal Medicine and Cardiology, Medical University of Warsaw, Warsaw, Poland
| | - Michał Ciurzyński
- Department of Internal Medicine and Cardiology, Medical University of Warsaw, Warsaw, Poland
| | - Bartłomiej Kisiel
- Department of Internal Diseases and Rheumatology, Military Institute of Medicine, Warsaw, Poland
| | - Anna Chrzanowska
- Department of Internal Medicine and Cardiology, Medical University of Warsaw, Warsaw, Poland
| | | | - Katarzyna Ciesielska
- Department of Internal Medicine and Cardiology, Medical University of Warsaw, Warsaw, Poland
| | - Marek Saracyn
- Department of Internal Diseases, Nephrology and Dialysis, Military Institute of Medicine, Warsaw, Poland
| | - Monika Lisicka
- Department of Internal Medicine and Cardiology, Medical University of Warsaw, Warsaw, Poland
| | - Joanna Radochońska
- Department of Internal Medicine and Cardiology, Medical University of Warsaw, Warsaw, Poland
| | - Piotr Pruszczyk
- Department of Internal Medicine and Cardiology, Medical University of Warsaw, Warsaw, Poland
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8
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Szendrey J, Lamothe SM, Vanner S, Guo J, Yang T, Li W, Davis J, Joneja M, Baranchuk A, Zhang S. Anti-Ro52 antibody acts on the S5-pore linker of hERG to chronically reduce channel expression. Cardiovasc Res 2020; 115:1500-1511. [PMID: 30544220 DOI: 10.1093/cvr/cvy310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/09/2018] [Accepted: 12/11/2018] [Indexed: 12/17/2022] Open
Abstract
AIMS The human ether-a-go-go-related gene (hERG) encodes the rapidly activating delayed rectifier potassium channel (IKr). Malfunction of hERG/IKr is the primary cause of acquired long QT syndrome (LQTS), an electrical disorder of the heart that can cause arrhythmias and sudden death. Patients with autoimmune diseases display a high incidence of LQTS. While dysfunction of hERG channels induced by autoantibodies such as anti-Ro52 may play a role in this pathology, the underlying mechanisms are not well understood. Here, we investigated the acute and chronic effects of anti-Ro52 antibody on hERG channels stably expressed in human embryonic kidney (hERG-HEK) 293 cells as well as IKr in neonatal rat ventricular myocytes. METHODS AND RESULTS Using whole-cell patch clamp, western blot analyses, and immunocytochemistry, we found that a 12-h treatment of hERG-HEK cells with patients' sera containing anti-Ro52 autoantibody decreased the hERG current (IhERG) by 32% compared to cells treated with autoantibody-negative patients' sera. Commercial anti-Ro52 antibody at 100 µg/mL did not acutely block IhERG. Instead, a 12-h treatment with anti-Ro52 antibody at a concentration of 4 µg/mL significantly reduced mature hERG protein expression and IhERG. Specifically, anti-Ro52 antibody did not acutely block hERG current but chronically facilitated hERG endocytic degradation. The extracellular S5-pore linker of hERG, which forms the turret of the channel on the outside of the cell, is the target region for anti-Ro52-mediated hERG reduction since its replacement with the analogous region of EAG abolished the anti-Ro52 effect. In neonatal rat ventricular myocytes, 100 µg/mL anti-Ro52 antibody did not acutely block IKr, but a 12-h treatment of cells with 4 µg/mL anti-Ro52 antibody selectively reduced IKr and prolonged the action potential duration. CONCLUSIONS Our results indicate that anti-Ro52 antibody acts on the hERG S5-pore linker to chronically decrease hERG expression and current. These findings provide novel insights into hERG regulation and anti-Ro52 antibody-associated LQTS.
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Affiliation(s)
- John Szendrey
- Department of Biomedical and Molecular Sciences, Queen's University, 18 Stuart Street, Kingston, Canada
| | - Shawn M Lamothe
- Department of Biomedical and Molecular Sciences, Queen's University, 18 Stuart Street, Kingston, Canada
| | - Stephanie Vanner
- Division of Rheumatology, Department of Medicine, Kingston General Hospital, Queen's University, Kingston, Canada
| | - Jun Guo
- Department of Biomedical and Molecular Sciences, Queen's University, 18 Stuart Street, Kingston, Canada
| | - Tonghua Yang
- Department of Biomedical and Molecular Sciences, Queen's University, 18 Stuart Street, Kingston, Canada
| | - Wentao Li
- Department of Biomedical and Molecular Sciences, Queen's University, 18 Stuart Street, Kingston, Canada
| | - Jordan Davis
- Department of Biomedical and Molecular Sciences, Queen's University, 18 Stuart Street, Kingston, Canada
| | - Mala Joneja
- Division of Rheumatology, Department of Medicine, Kingston General Hospital, Queen's University, Kingston, Canada
| | - Adrian Baranchuk
- Division of Cardiology, Department of Medicine, Kingston General Hospital, Queen's University, Kingston, Canada
| | - Shetuan Zhang
- Department of Biomedical and Molecular Sciences, Queen's University, 18 Stuart Street, Kingston, Canada
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Moghadam EA, Hamzehlou L, Moazzami B, Mehri M, Ziaee V. Increased QT Interval Dispersion is Associated with Coronary Artery Involvement in Children with
Kawasaki Disease. Oman Med J 2020; 35:e88. [PMID: 31993226 PMCID: PMC6975257 DOI: 10.5001/omj.2020.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/01/2019] [Indexed: 11/03/2022] Open
Abstract
Objectives Coronary artery (CA) involvement is the most well known complication of Kawasaki disease (KD). Previous studies have suggested that QT dispersion has a predictive value in diagnosing cardiac ischemia, ventricular arrhythmia, and sudden cardiac death. However, limited data exits regarding the application of QT dispersion in KD. Therefore, we sought to determine whether there is a relationship between QT dispersion and CA involvement in patients with KD. Methods We performed a cross-sectional study of all consecutive patients with KD who were followed-up at the Pediatric Rheumatology Department (Pediatrics Center of Excellence affiliated to Tehran University of Medical Sciences, Tehran, Iran) from September 2013 to November 2015. Patients who met the criteria for KD, based on the American Heart Association guideline, were enrolled in the study. We collected data regarding patients' demographics, clinical manifestations, laboratory, and echocardiographic findings. Results A total of 70 KD patients were identified, including 43 males (61.4%) and 27 females (38.6%). The median age of patients was 21.0 (11.0-48.0) months. We found statistically significant differences between age, gender, and platelet count among patients with and without CA involvement (p < 0.050). Median corrected QT dispersion in patients with CA involvement calculated from 12 leads in the acute phase was significantly higher compared to the non-CA involvement group (108.0 (89.5-138.5) ms vs. 63.0 (54.0-74.5) ms, respectively (p < 0.001)). Conclusions Prolonged QT dispersion (corrected or non-corrected) during the acute and convalescence phases in patients with KD is associated with coronary involvement.
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Affiliation(s)
- Ehsan Aghaei Moghadam
- Department of Pediatrics, Tehran University of Medical Sciences, Tehran, Iran.,Children's Medical Center, Pediatrics Center of Excellence, Tehran, Iran
| | - Leila Hamzehlou
- Children's Medical Center, Pediatrics Center of Excellence, Tehran, Iran
| | - Bobak Moazzami
- Children's Medical Center, Pediatrics Center of Excellence, Tehran, Iran
| | - Mina Mehri
- Children's Medical Center, Pediatrics Center of Excellence, Tehran, Iran
| | - Vahid Ziaee
- Department of Pediatrics, Tehran University of Medical Sciences, Tehran, Iran.,Children's Medical Center, Pediatrics Center of Excellence, Tehran, Iran.,Pediatric Rheumatology Research Group, Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
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10
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Kouvas N, Kontogiannis C, Georgiopoulos G, Spartalis M, Tsilimigras DI, Spartalis E, Kapelouzou A, Kosmopoulos M, Chatzidou S. The complex crosstalk between inflammatory cytokines and ventricular arrhythmias. Cytokine 2018; 111:171-177. [PMID: 30172113 DOI: 10.1016/j.cyto.2018.08.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/07/2018] [Accepted: 08/08/2018] [Indexed: 12/23/2022]
Affiliation(s)
- N Kouvas
- Department of Clinical Therapeutics, "Alexandra" Hospital, University of Athens, Athens, Greece
| | - C Kontogiannis
- Department of Clinical Therapeutics, "Alexandra" Hospital, University of Athens, Athens, Greece
| | - G Georgiopoulos
- Department of Clinical Therapeutics, "Alexandra" Hospital, University of Athens, Athens, Greece
| | - M Spartalis
- Department of Electrophysiology and Pacing, Onassis Cardiac Surgery Center, Greece
| | - D I Tsilimigras
- Department of Clinical Therapeutics, "Alexandra" Hospital, University of Athens, Athens, Greece
| | - E Spartalis
- Laboratory of Experimental Surgery and Surgical Research, National and Kapodistrian University of Athens, Medical School, Greece
| | - A Kapelouzou
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - M Kosmopoulos
- Department of Clinical Therapeutics, "Alexandra" Hospital, University of Athens, Athens, Greece.
| | - S Chatzidou
- Department of Clinical Therapeutics, "Alexandra" Hospital, University of Athens, Athens, Greece
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11
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Schlit AF, Delaunois A, Colomar A, Claudio B, Cariolato L, Boev R, Valentin JP, Peters C, Sloan VS, Bentz JWG. Risk of QT prolongation and torsade de pointes associated with exposure to hydroxyzine: re-evaluation of an established drug. Pharmacol Res Perspect 2017; 5:e00309. [PMID: 28480041 PMCID: PMC5415947 DOI: 10.1002/prp2.309] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 03/09/2017] [Indexed: 01/10/2023] Open
Abstract
Several noncardiac drugs have been linked to cardiac safety concerns, highlighting the importance of post‐marketing surveillance and continued evaluation of the benefit‐risk of long‐established drugs. Here, we examine the risk of QT prolongation and/or torsade de pointes (TdP) associated with the use of hydroxyzine, a first generation sedating antihistamine. We have used a combined methodological approach to re‐evaluate the cardiac safety profile of hydroxyzine, including: (1) a full review of the sponsor pharmacovigilance safety database to examine real‐world data on the risk of QT prolongation and/or TdP associated with hydroxyzine use and (2) nonclinical electrophysiological studies to examine concentration‐dependent effects of hydroxyzine on a range of human cardiac ion channels. Based on a review of pharmacovigilance data between 14th December 1955 and 1st August 2016, we identified 59 reports of QT prolongation and/or TdP potentially linked to hydroxyzine use. Aside from intentional overdose, all cases involved underlying medical conditions or concomitant medications that constituted at least 1 additional risk factor for such events. The combination of cardiovascular disorders plus concomitant treatment of drugs known to induce arrhythmia was identified as the greatest combined risk factor. Parallel patch‐clamp studies demonstrated hydroxyzine concentration‐dependent inhibition of several human cardiac ion channels, including the ether‐a‐go‐go‐related gene (hERG) potassium ion channels. Results from this analysis support the listing of hydroxyzine as a drug with “conditional risk of TdP” and are in line with recommendations to limit hydroxyzine use in patients with known underlying risk factors for QT prolongation and/or TdP.
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Affiliation(s)
| | | | - Aurore Colomar
- UCB Pharma Brussels Belgium.,Present address: Aurore Colomar, Université de Mons Mons Belgium
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12
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Tufan AN, Sag S, Oksuz MF, Ermurat S, Coskun BN, Gullulu M, Budak F, Baran I, Pehlivan Y, Dalkilic E. Prolonged Tpeak-Tend interval in anti-Ro52 antibody-positive connective tissue diseases. Rheumatol Int 2016; 37:67-73. [PMID: 27193468 DOI: 10.1007/s00296-016-3488-1] [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] [Received: 01/25/2016] [Accepted: 05/03/2016] [Indexed: 11/25/2022]
Abstract
Patients with connective tissue diseases (CTDs) may have prolonged corrected QT interval which indicates increased risk for ventricular arrhythmias. However, a more sensitive measure of ventricular repolarization, T-peak-to-end (Tpe) interval, has not been studied in CTDs. We aimed to investigate the relationship between ventricular repolarization abnormalities and anti-Ro52-positivity in subjects with connective tissue diseases (CTDs). We enrolled patients with anti-Ro52-positive CTDs, ANA-positive CTDs, and healthy subjects in this cross-sectional study. We excluded conditions potentially affecting the QT interval. We compared the ECG measures between the groups and performed analyses to define factors associated with ventricular repolarization measures. 15 ANA and anti-Ro52-positive, 39 ANA-positive and anti-Ro52-negative, and 22 healthy subjects were enrolled. None of the subjects had rhythm or conduction disturbances. Corrected QT intervals were similar between the groups. Tpe (84, 77.3, and 69.4 msn, respectively) and QT-dispersion (40, 27.2, and 20.1 msn, respectively) were higher in anti-Ro52-positive subjects compared with the ANA-positive and healthy subjects. Anti-Ro52 titers were correlated with Tpe and QT-dispersion (r = 0.52 and p < 0.001 for each). ANA and anti-Ro52-positivity were independently associated with higher Tpe (OR = 7.7, p = 0.001 and OR = 6.9, p = 0.001, respectively), corrected Tpe (OR = 11.3, p = 0.001 and OR = 8.4, p = 0.003, respectively), QT dispersion (OR = 7, p = 0.008 and OR = 13, p < 0.001, respectively), and QTc dispersion (OR = 9.1, p = 0.001 and OR = 14.1, p < 0.001, respectively). This study provides evidence that ANA positivity, especially when concomitant anti-Ro52-positivity is present, significantly deteriorates ventricular repolarization. The aforementioned ventricular repolarization abnormalities may render these subjects susceptible to serious rhythm or conduction disorders in the setting of predisposing conditions.
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Affiliation(s)
- Ayse Nur Tufan
- Department of Rheumatology, Uludag University School of Medicine, Gorukle, Bursa, Turkey.
| | - Saim Sag
- Department of Cardiology, Uludag University School of Medicine, Gorukle, Bursa, Turkey.
| | - Mustafa Ferhat Oksuz
- Department of Rheumatology, Uludag University School of Medicine, Gorukle, Bursa, Turkey
| | - Selime Ermurat
- Department of Rheumatology, Uludag University School of Medicine, Gorukle, Bursa, Turkey
| | - Belkis Nihan Coskun
- Department of Rheumatology, Uludag University School of Medicine, Gorukle, Bursa, Turkey
| | - Mustafa Gullulu
- Department of Nephrology, Uludag University School of Medicine, Gorukle, Bursa, Turkey
| | - Ferah Budak
- Department of Immunology, Uludag University School of Medicine, Gorukle, Bursa, Turkey
| | - Ibrahim Baran
- Department of Cardiology, Uludag University School of Medicine, Gorukle, Bursa, Turkey
| | - Yavuz Pehlivan
- Department of Rheumatology, Uludag University School of Medicine, Gorukle, Bursa, Turkey
| | - Ediz Dalkilic
- Department of Rheumatology, Uludag University School of Medicine, Gorukle, Bursa, Turkey
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Rivera-López R, Jiménez-Jáimez J, Sabio JM, Zamora-Pasadas M, Vargas-Hitos JA, Martínez-Bordonado J, Navarrete-Navarrete N, Fernández RR, Sanchez-Cantalejo E, Jiménez-Alonso J. Relationship between QT Interval Length and Arterial Stiffness in Systemic Lupus Erythematosus (SLE): A Cross-Sectional Case-Control Study. PLoS One 2016; 11:e0152291. [PMID: 27064990 PMCID: PMC4827799 DOI: 10.1371/journal.pone.0152291] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 03/12/2016] [Indexed: 01/08/2023] Open
Abstract
INTRODUCTION AND OBJECTIVES The QT interval on the electrocardiogram has been shown to be longer in patients with systemic lupus erythematosus (SLE) compared to that of the general population. The clinical significance of this finding is unknown. The aim of this study was to assess the relationship between QT interval and subclinical atherosclerosis, measured by carotid-femoral pulse-wave velocity. MATERIAL AND METHODS 93 patients with SLE and 109 healthy women with similar basal characteristics were studied. All patients underwent a 12- lead electrocardiogram, and corrected QT interval (QTc) was measured using the Bazett's formula. The presence of atherosclerosis was evaluated by carotid-femoral pulse-wave velocity. RESULTS Clinical basal characteristics were similar in both groups. QTc interval was 415 ± 21.4 milliseconds in all patients, and 407 ± 19.1 milliseconds in the control group (p = 0.007). There was a positive correlation between QTc interval and carotid-femoral pulse-wave velocity (r = 0.235; p = 0.02) in patients with SLE. This association was independent of hypertension and age in a multivariate analysis. CONCLUSION QTc interval measured by electrocardiogram is prolonged in SLE patients; it is related to subclinical atherosclerosis, measured by carotid-femoral pulse-wave velocity. This measure may help stratify risk in routine clinical practice and select the patients that might benefit from a more aggressive therapy in the prevention of cardiovascular events.
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Affiliation(s)
- Ricardo Rivera-López
- Cardiology Clinical Management Unit, Granada University Hospitals; Granada Institute of Biohealth Research.Granada. Spain
- * E-mail:
| | - Juan Jiménez-Jáimez
- Cardiology Clinical Management Unit, Granada University Hospitals; Granada Institute of Biohealth Research.Granada. Spain
| | - José Mario Sabio
- Systemic Autoinmune Diseases Unit. Department of Internal Medicine. Granada University Hospitals; Granada Institute of Biohealth Research.Granada. Spain
| | - Mónica Zamora-Pasadas
- Systemic Autoinmune Diseases Unit. Department of Internal Medicine. Granada University Hospitals; Granada Institute of Biohealth Research.Granada. Spain
| | - José Antonio Vargas-Hitos
- Systemic Autoinmune Diseases Unit. Department of Internal Medicine. Granada University Hospitals; Granada Institute of Biohealth Research.Granada. Spain
| | - Josefina Martínez-Bordonado
- Systemic Autoinmune Diseases Unit. Department of Internal Medicine. Granada University Hospitals; Granada Institute of Biohealth Research.Granada. Spain
| | - Nuria Navarrete-Navarrete
- Systemic Autoinmune Diseases Unit. Department of Internal Medicine. Granada University Hospitals; Granada Institute of Biohealth Research.Granada. Spain
| | | | - E. Sanchez-Cantalejo
- Andalusian School of Public Health, Granada, Spain
- CIBER de Epidemiología y Salud Publica (CIBERESP), Madrid, Spain
- Instituto de Investigación Biosanitaria de Granada (Granada. ibs), Granada, Spain
| | - Juan Jiménez-Alonso
- Systemic Autoinmune Diseases Unit. Department of Internal Medicine. Granada University Hospitals; Granada Institute of Biohealth Research.Granada. Spain
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Sham S, Madheshwaran M, Tamilselvam TN, Rajeswari S. Correlation of QT interval with disease activity in newly detected SLE patients at baseline and during flare. INDIAN JOURNAL OF RHEUMATOLOGY 2015. [DOI: 10.1016/j.injr.2015.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Lazzerini PE, Capecchi PL, Laghi-Pasini F. Long QT Syndrome: An Emerging Role for Inflammation and Immunity. Front Cardiovasc Med 2015; 2:26. [PMID: 26798623 PMCID: PMC4712633 DOI: 10.3389/fcvm.2015.00026] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 05/08/2015] [Indexed: 01/07/2023] Open
Abstract
The long QT syndrome (LQTS), classified as congenital or acquired, is a multi-factorial disorder of myocardial repolarization predisposing to life-threatening ventricular arrhythmias, particularly torsades de pointes. In the latest years, inflammation and immunity have been increasingly recognized as novel factors crucially involved in modulating ventricular repolarization. In the present paper, we critically review the available information on this topic, also analyzing putative mechanisms and potential interplays with the other etiologic factors, either acquired or inherited. Accumulating data indicate inflammatory activation as a potential cause of acquired LQTS. The putative underlying mechanisms are complex but essentially cytokine-mediated, including both direct actions on cardiomyocyte ion channels expression and function, and indirect effects resulting from an increased central nervous system sympathetic drive on the heart. Autoimmunity represents another recently arising cause of acquired LQTS. Indeed, increasing evidence demonstrates that autoantibodies may affect myocardial electric properties by directly cross-reacting with the cardiomyocyte and interfering with specific ion currents as a result of molecular mimicry mechanisms. Intriguingly, recent data suggest that inflammation and immunity may be also involved in modulating the clinical expression of congenital forms of LQTS, possibly triggering or enhancing electrical instability in patients who already are genetically predisposed to arrhythmias. In this view, targeting immuno-inflammatory pathways may in the future represent an attractive therapeutic approach in a number of LQTS patients, thus opening new exciting avenues in antiarrhythmic therapy.
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Affiliation(s)
- Pietro Enea Lazzerini
- Department of Medical Sciences, Surgery and Neurosciences, University of Siena , Siena , Italy
| | - Pier Leopoldo Capecchi
- Department of Medical Sciences, Surgery and Neurosciences, University of Siena , Siena , Italy
| | - Franco Laghi-Pasini
- Department of Medical Sciences, Surgery and Neurosciences, University of Siena , Siena , Italy
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Amaya-Amaya J, Montoya-Sánchez L, Rojas-Villarraga A. Cardiovascular involvement in autoimmune diseases. BIOMED RESEARCH INTERNATIONAL 2014; 2014:367359. [PMID: 25177690 PMCID: PMC4142566 DOI: 10.1155/2014/367359] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Accepted: 05/01/2014] [Indexed: 12/15/2022]
Abstract
Autoimmune diseases (AD) represent a broad spectrum of chronic conditions that may afflict specific target organs or multiple systems with a significant burden on quality of life. These conditions have common mechanisms including genetic and epigenetics factors, gender disparity, environmental triggers, pathophysiological abnormalities, and certain subphenotypes. Atherosclerosis (AT) was once considered to be a degenerative disease that was an inevitable consequence of aging. However, research in the last three decades has shown that AT is not degenerative or inevitable. It is an autoimmune-inflammatory disease associated with infectious and inflammatory factors characterized by lipoprotein metabolism alteration that leads to immune system activation with the consequent proliferation of smooth muscle cells, narrowing arteries, and atheroma formation. Both humoral and cellular immune mechanisms have been proposed to participate in the onset and progression of AT. Several risk factors, known as classic risk factors, have been described. Interestingly, the excessive cardiovascular events observed in patients with ADs are not fully explained by these factors. Several novel risk factors contribute to the development of premature vascular damage. In this review, we discuss our current understanding of how traditional and nontraditional risk factors contribute to pathogenesis of CVD in AD.
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Affiliation(s)
- Jenny Amaya-Amaya
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 No. 63C-69, 11001000 Bogotá, Colombia
- Mederi, Hospital Universitario Mayor, Calle 24 No. 29-45, 11001000 Bogotá, Colombia
| | - Laura Montoya-Sánchez
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 No. 63C-69, 11001000 Bogotá, Colombia
- Mederi, Hospital Universitario Mayor, Calle 24 No. 29-45, 11001000 Bogotá, Colombia
| | - Adriana Rojas-Villarraga
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 No. 63C-69, 11001000 Bogotá, Colombia
- Mederi, Hospital Universitario Mayor, Calle 24 No. 29-45, 11001000 Bogotá, Colombia
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Avci A, Demir K, Altunkeser BB, Yilmaz S, Yilmaz A, Ersecgin A, Demir T. Assessment of inhomogeneities of repolarization in patients with systemic lupus erythematosus. Ann Noninvasive Electrocardiol 2014; 19:374-82. [PMID: 24597863 PMCID: PMC6932449 DOI: 10.1111/anec.12145] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVES Systemic lupus erythematosus (SLE) is a chronic disease that affects many organ systems and manifests a broad spectrum of laboratory and clinical features. SLE patients have an increased risk of developing cardiovascular disease. The aim of this study was to evaluate inhomogeneities of repolarization by using Tpeak -Tend (Tp-e) interval and Tp-e/QT ratio were measured from the 12-lead surface electrocardiogram (ECG) in patients with SLE. MATERIAL AND METHOD This study included 69 SLE patients (69 females; mean age 35.8 ± 10.2) and 57 control subjects (57 females; mean age 34.5 ± 8.9). Transthoracic echocardiographic examination was done in all participants. QT parameters, Tp-e intervals and Tp-e/QT ratio were measured from the 12-lead ECG. These parameters were compared between groups. RESULTS No statistically significant difference was found between two groups in terms of basic characteristics. Diastolic function parameters were similar between the two groups (P > 0.05). In electrocardiographic parameters analysis, QT dispersion (QTd) and corrected QT dispersion (cQTd) were significantly increased in SLE patients compared the control group (49.5 ± 16.4 ms vs. 32.8±11.7 ms and 56.7 ± 19.5 ms vs. 36.4 ± 13.1 ms, all P value < 0.001). Tp-e interval and Tp-e/QT ratio were also significantly higher in SLE patients (82.8 ± 18.9 vs. 72.4 ± 17.6 and 0.22 ± 0.05 vs. 0.19 ± 0.05, P = 0.002 and P = 0.001, respectively). Tp-e interval and Tp-e/QT were positively correlated with disease duration (r = 0.29, P = 0.01 and r = 0.24, P = 0.04, respectively). CONCLUSION Our study revealed that QTd, cQTd, Tp-e interval and Tp-e/QT ratio increased in patients with SLE. Also, Tp-e interval and Tp-e/QT were positively correlated with disease duration.
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Affiliation(s)
- Ahmet Avci
- Faculty of MedicineCardiology DepartmentSelcuk UniversityKonyaTurkey
| | - Kenan Demir
- Faculty of MedicineCardiology DepartmentSelcuk UniversityKonyaTurkey
| | | | - Sema Yilmaz
- Faculty of MedicineRheumatology DepartmentSelcuk UniversityKonyaTurkey
| | - Ahmet Yilmaz
- Faculty of MedicineCardiology DepartmentSelcuk UniversityKonyaTurkey
| | - Ahmet Ersecgin
- Faculty of MedicineCardiology DepartmentSelcuk UniversityKonyaTurkey
| | - Tarik Demir
- Faculty of Medicine, Internal Medicine DepartmentSelcuk UniversityKonyaTurkey
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Ribeiro WN, Yamada AT, Gutierrez PS. Case 2/2014 - 51-year old patient with systemic lupus erythematosus and fever after valve replacement. Arq Bras Cardiol 2014; 102:e44-51. [PMID: 24918918 PMCID: PMC4051459 DOI: 10.5935/abc.20140069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
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Amaya-Amaya J, Sarmiento-Monroy JC, Caro-Moreno J, Molano-González N, Mantilla RD, Rojas-Villarraga A, Anaya JM. Cardiovascular disease in latin american patients with systemic lupus erythematosus: a cross-sectional study and a systematic review. Autoimmune Dis 2013; 2013:794383. [PMID: 24294522 PMCID: PMC3835818 DOI: 10.1155/2013/794383] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 08/26/2013] [Indexed: 12/24/2022] Open
Abstract
Objective. This study was performed to determine the prevalence of and associated risk factors for cardiovascular disease (CVD) in Latin American (LA) patients with systemic lupus erythematosus (SLE). Methods. First, a cross-sectional analytical study was conducted in 310 Colombian patients with SLE in whom CVD was assessed. Associated factors were examined by multivariate regression analyses. Second, a systematic review of the literature on CVD in SLE in LA was performed. Results. There were 133 (36.5%) Colombian SLE patients with CVD. Dyslipidemia, smoking, coffee consumption, and pleural effusion were positively associated with CVD. An independent effect of coffee consumption and cigarette on CVD was found regardless of gender and duration of disease. In the systematic review, 60 articles fulfilling the eligibility criteria were included. A wide range of CVD prevalence was found (4%-79.5%). Several studies reported ancestry, genetic factors, and polyautoimmunity as novel risk factors for such a condition. Conclusions. A high rate of CVD is observed in LA patients with SLE. Awareness of the observed risk factors should encourage preventive population strategies for CVD in patients with SLE aimed at facilitating the suppression of cigarette smoking and coffee consumption as well as at the tight control of dyslipidemia and other modifiable risk factors.
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Affiliation(s)
- Jenny Amaya-Amaya
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences,
Universidad del Rosario, Carrera 24 No. 63C-69, 111221 Bogotá, Colombia
| | - Juan Camilo Sarmiento-Monroy
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences,
Universidad del Rosario, Carrera 24 No. 63C-69, 111221 Bogotá, Colombia
| | - Julián Caro-Moreno
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences,
Universidad del Rosario, Carrera 24 No. 63C-69, 111221 Bogotá, Colombia
| | - Nicolás Molano-González
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences,
Universidad del Rosario, Carrera 24 No. 63C-69, 111221 Bogotá, Colombia
| | - Rubén D. Mantilla
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences,
Universidad del Rosario, Carrera 24 No. 63C-69, 111221 Bogotá, Colombia
| | - Adriana Rojas-Villarraga
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences,
Universidad del Rosario, Carrera 24 No. 63C-69, 111221 Bogotá, Colombia
| | - Juan-Manuel Anaya
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences,
Universidad del Rosario, Carrera 24 No. 63C-69, 111221 Bogotá, Colombia
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Alkmim Teixeira R, Borba EF, Pedrosa A, Nishioka S, Viana VST, Ramires JA, Kalil-Filho R, Bonfa E, Martinelli Filho M. Evidence for cardiac safety and antiarrhythmic potential of chloroquine in systemic lupus erythematosus. Europace 2013; 16:887-92. [DOI: 10.1093/europace/eut290] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Nomura A, Kishimoto M, Takahashi O, Deshpande GA, Yamaguchi K, Okada M. Prolongation of heart rate-corrected QT interval is a predictor of cardiac autonomic dysfunction in patients with systemic lupus erythematosus. Rheumatol Int 2013; 34:643-7. [PMID: 23503894 DOI: 10.1007/s00296-013-2718-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Accepted: 03/07/2013] [Indexed: 12/20/2022]
Abstract
Heart rate-corrected QT interval duration (QTc) has been shown to be related to cardiac autonomic dysfunction in patients with diabetes mellitus, although this association has not been previously described in patients with systemic lupus erythematosus (SLE). We retrospectively reviewed the medical records of 91 SLE patients and 144 non-SLE connective tissue disease patients visiting our clinic from November 2010 to April 2011. We compared ambulatory heart rate identified by pulse measured by automated machine in an outpatient waiting area versus resting heart rate identified on prior screening electrocardiogram. Heart rate differences were analyzed in relation to QTc interval and other characteristics. Ambulatory and resting heart rate differences were larger among SLE patients with QTc prolongation (QTc > 430 ms) than those without QTc prolongation (mean difference, 15.9 vs. 9.6, p = 0.001). In multivariate analysis, differences in heart rate were associated with QTc prolongation (OR 1.10, 95 % CI 1.01-1.21; p = 0.038), independent of age, duration of disease, immunosuppressant use, hydroxychloroquine use, diabetes mellitus, cardiac abnormality, anti-Ro/SS-A antibody positivity, or resting heart rate. Cardiac autonomic dysfunction is a common manifestation of SLE and may be related to QTc prolongation.
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Affiliation(s)
- Atsushi Nomura
- Division of Allergy and Rheumatology, St. Luke's International Hospital, 9-1 Akashi-cho, Chuo-ku, Tokyo, 104-8560, Japan,
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Bourré-Tessier J, Clarke AE, Huynh T, Bernatsky S, Joseph L, Belisle P, Pineau CA. Prolonged corrected QT interval in anti-Ro/SSA-positive adults with systemic lupus erythematosus. Arthritis Care Res (Hoboken) 2011; 63:1031-7. [PMID: 21452253 DOI: 10.1002/acr.20470] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To examine whether anti-Ro/SSA antibodies are associated with an increased risk of corrected QT (QTc) prolongation, and to study the stability of this relationship over time. METHODS Patients fulfilling the American College of Rheumatology (ACR) criteria for systemic lupus erythematosus (SLE) were invited to undergo a 12-lead resting electrocardiogram (EKG) in the pilot phase of our project, performed between February 2002 and March 2005. The same study population was used to perform a second similar analysis with a larger sample between April 2005 and May 2007. Multivariate logistic regression models were fit to estimate the cross-sectional association between anti-Ro/SSA and other demographic and clinical variables on QTc prolongation. The other potentially associated factors examined included age, sex, disease duration, lupus activity (Systemic Lupus Erythematosus Disease Activity Index 2000 update), damage (Systemic Lupus International Collaborating Clinics/ACR Damage Index), potassium and magnesium levels, and medications with the potential to prolong the QTc interval. RESULTS Cross-sectional analysis of the pilot data (n = 150 patients) showed an association of prolonged QTc with the presence of anti-Ro/SSA (adjusted odds ratio [OR] 12.6; 95% confidence interval [95% CI] 2.3, 70.7). In the second larger study (n = 278), the association was replicated, with a narrower 95% CI (adjusted OR 5.1; 95% CI 1.5, 17.4). In the 118 patients with 2 EKG assessments, the results were consistent over time. CONCLUSION Anti-Ro/SSA was associated with QTc prolongation in both our pilot data and a larger SLE cohort sample. Patients positive for anti-Ro/SSA may benefit from EKG testing and appropriate counseling should be considered for those identified with QTc prolongation.
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Eisen A, Arnson Y, Dovrish Z, Hadary R, Amital H. Arrhythmias and conduction defects in rheumatological diseases--a comprehensive review. Semin Arthritis Rheum 2009; 39:145-56. [PMID: 18585758 DOI: 10.1016/j.semarthrit.2008.05.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Revised: 04/07/2008] [Accepted: 05/04/2008] [Indexed: 01/09/2023]
Abstract
OBJECTIVES To review the clinical aspects of cardiac arrhythmias and conduction disturbances in several common and less encountered adult rheumatic diseases and to underline the importance of prompt diagnosis and management in these patients. METHODS The PubMed database was searched for articles published between the years 1960 and 2008 for keywords referring to autoimmune diseases. All relevant English-written articles were reviewed. Most were uncontrolled series and case reports, due to the lack of prospective studies and randomized trials. RESULTS Rheumatologic conditions may affect the cardiovascular system and increase morbidity and mortality. Rhythm and conduction defects are usually mild but may be life-threatening; in certain diseases, such as in systemic lupus erythematosus they may resolve following therapy with corticosteroids. Conduction defects occur frequently in patients with spondyloarthropathies and in those with various forms of vasculitis. Enhanced variation of the QT interval may be a sensitive marker of a higher arrythmogenic tendency in patients with autoimmune conditions. CONCLUSIONS It is important to identify patients at high risk for cardiac arrhythmias. Treating such patients with arrhythmias should not differ fundamentally from other patients. Nevertheless, appropriate clinical attention and judgment should be applied to exclude the possibility that arrhythmias reflect uncontrolled myocardial inflammation.
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Affiliation(s)
- Alon Eisen
- Department of Medicine D, Meir Medical Center, Kefar-Saba, Israel
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Letsas KP, Efremidis M, Sideris A. Systemic lupus erythematosus and QT interval prolongation. A reply to the comments by Perciaccante and Fiorentini regarding the article “QT interval prolongation and torsade de pointes associated with indapamide”. Int J Cardiol 2007. [DOI: 10.1016/j.ijcard.2007.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Perciaccante A, Fiorentini A. QT interval prolongation and torsade de pointes associated with indapamide. Comments to Letsas et al. Int J Cardiol 2007; 122:255; author reply 256-7. [PMID: 17368589 DOI: 10.1016/j.ijcard.2006.11.245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2006] [Accepted: 11/25/2006] [Indexed: 12/01/2022]
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Pineau CA, Lee C, Ramsey-Goldman R, Clarke AE, Bernatsky S. The second hit: comorbidities in systemic lupus erythematosus. ACTA ACUST UNITED AC 2007. [DOI: 10.2217/17460816.2.5.497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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