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Phrommintikul A, Pongbangli N, Gunaparn S, Prasertwitayakij N, Nantsupawat T, Wongcharoen W. Association of the interatrial block and left atrial fibrosis in the patients without history of atrial fibrillation. PLoS One 2024; 19:e0297920. [PMID: 38329999 PMCID: PMC10852280 DOI: 10.1371/journal.pone.0297920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/14/2024] [Indexed: 02/10/2024] Open
Abstract
Presence of left atrial (LA) fibrosis reflects underlying atrial cardiomyopathy. Interatrial block (IAB) is associated with LA fibrosis in patients with atrial fibrillation (AF). The association of IAB and LA fibrosis in the patients without history of AF is unknown. We examined association of IAB and LA fibrosis in the patients without AF history. This is a retrospective analysis of 229 patients undergoing cardiac magnetic resonance imaging (CMR). LA fibrosis was reported from spatial extent of late gadolinium enhancement of CMR. IAB was measured from 12-lead electrocardiography using digital caliper. Of 229 patients undergoing CMR, prevalence of IAB was 50.2%. Patients with IAB were older (56.9±13.9 years vs. 45.9±19.2 years, p<0.001) and had higher prevalence of co-morbidities. Left ventricular ejection fraction was lower in IAB group. LA volume index (LAVI) was greater in IAB group (54.6±24.9 ml/m2 vs. 43.0±21.1 ml/m2, p<0.001). Patients with IAB had higher prevalence of LA fibrosis than those without IAB (70.4% vs. 21.2%; p<0.001). After multivariable analysis, only IAB and LAVI were independent factors that predict LA fibrosis. Prevalence of IAB in patients undergoing CMR was high. IAB was highly associated with LA fibrosis and larger LA size in patients without AF history.
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Affiliation(s)
- Arintaya Phrommintikul
- Division of Cardiology, Department of Internal medicine, Chiang Mai University, Chiang Mai, Thailand
- Center for Medical Excellence, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Natnicha Pongbangli
- Division of Cardiology, Department of Internal Medicine, Chiangrai Prachanukroh Hospital, Chiang Rai, Thailand
| | - Siriluck Gunaparn
- Division of Cardiology, Department of Internal medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Narawudt Prasertwitayakij
- Division of Cardiology, Department of Internal medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Teerapat Nantsupawat
- Division of Cardiology, Department of Internal medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Wanwarang Wongcharoen
- Division of Cardiology, Department of Internal medicine, Chiang Mai University, Chiang Mai, Thailand
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Negreira-Caamaño M, Rajjoub EA, Salguero-Bodes R, Arribas-Ynsaurriaga F, Rodríguez-Muñoz D. Paradoxical interatrial conduction recovery after cavotricuspid isthmus ablation: A case report. J Electrocardiol 2024; 82:69-72. [PMID: 38042010 DOI: 10.1016/j.jelectrocard.2023.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/05/2023] [Accepted: 11/19/2023] [Indexed: 12/04/2023]
Abstract
We present a case of a patient with advanced interatrial block who was admitted for cavotricuspid isthmus ablation as treatment of typical atrial flutter. A baseline advanced interatrial block pattern turned into partial interatrial block pattern and prolonged PR interval after the procedure. We discuss the mechanism underlying that change.
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Affiliation(s)
| | - Ez Alddin Rajjoub
- Cardiology Department, 12 de Octubre University Hospital, Madrid, Spain.
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Baturova MA, Cornefjord G, Carlson J, Johnson LSB, Smith JG, Platonov PG. P-wave characteristics as electrocardiographic markers of atrial abnormality in prediction of incident atrial fibrillation - The Malmö Preventive Project. J Electrocardiol 2024; 82:125-130. [PMID: 38128157 DOI: 10.1016/j.jelectrocard.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/03/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND P-wave indices reflect atrial abnormalities contributing to atrial fibrillation (AF). We aimed to assess a comprehensive set of P-wave characteristics for prediction of incident AF in a population-based setting. METHODS Malmö Preventative Project (MPP) participants were reexamined in 2002-2006 with electrocardiographic (ECG) and echocardiographic examinations and followed for 5 years. AF-free subjects (n = 983, age 70 ± 5 years, 38% females) with sinus rhythm ECGs were included in the study. ECGs were digitally processed using the Glasgow algorithm. P-wave duration, axis, dispersion, P-terminal force in lead V1 and interatrial block (IAB) were evaluated. ECG risk score combining the morphology, voltage and length of P-wave (MVP score) was calculated. New-onset diagnoses of AF were obtained from nation-wide registers. RESULTS During follow up, 66 patients (7%) developed AF. After adjustment for age and gender, the independent predictors of AF were abnormal P-wave axis > 75° (HR 1.63 CI95% 1.95-11.03) and MVP score 4 (HR 6.17 CI 95% 1.76-21.64), both correlated with LA area: Person r - 0.146, p < 0.001 and 0.192, p < 0.001 respectively. Advanced IAB (aIAB) with biphasic P-wave morphology in leads III and aVF was the most prevalent variant of aIAB and predicted AF in a univariate model (HR 2.59 CI 95% 1.02-6.58). CONCLUSION P-wave frontal axis and MVP score are ECG-based AF predictors in the population-based cohort. Our study provides estimates for prevalence and prognostic importance of different variants of aIAB, providing a support to use biphasic P-wave morphology in lead aVF as the basis for aIAB definition.
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Affiliation(s)
- Maria A Baturova
- Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, SE-221 85 Lund, Sweden; Research Park, Saint Petersburg University, 7/9 Universitetskaya Emb., 199034 Saint Petersburg, Russia.
| | - Gustav Cornefjord
- Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, SE-221 85 Lund, Sweden
| | - Jonas Carlson
- Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, SE-221 85 Lund, Sweden.
| | - Linda S B Johnson
- Department of Clinical Sciences, Lund University, SE-202 13 Malmö, Sweden; Department of Imaging and Functional Studies, Skåne University Hospital, SE-205 02 Malmö, Sweden.
| | - J Gustav Smith
- Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, SE-221 85 Lund, Sweden; The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University, Sweden; Wallenberg Center for Molecular Medicine and Lund University Diabetes Center, Lund University, SE-221 84 Lund, Sweden; Department of Cardiology, Sahlgrenska University Hospital, SE-413 45 Göteborg, Sweden.
| | - Pyotr G Platonov
- Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, SE-221 85 Lund, Sweden.
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CETIN GUVENC R, GUREN AK, ENGUR B, CELIK S, DEMIRTUNC R. Interatrial Block and Electrocardiographic Markers of Repolarization in Patients Hospitalized with COVID-19: Classical and Bayesian Analysis. Medeni Med J 2023; 38:236-242. [PMID: 38148690 PMCID: PMC10759943 DOI: 10.4274/mmj.galenos.2023.87400] [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: 08/02/2023] [Accepted: 09/11/2023] [Indexed: 12/28/2023] Open
Abstract
Objective Coronavirus disease-2019 (COVID-19) is associated with atrial fibrillation (AF) and ventricular arrhythmias. Several electrophysiological abnormalities on surface electrocardiography (ECG) are associated with AF and ventricular arrhythmias, either as markers of abnormal interatrial conduction or abnormal repolarization. The present study sought to understand whether such ECG markers are more common in patients hospitalized with COVID-19 infection during the pandemic. Methods A total of 87 COVID-19 patients formed the study group, whereas 64 patients who were hospitalized for any reason other than COVID-19 infection served as controls. The frequency of partial and advanced interatrial block (IAB), QT and corrected QT (QTc) durations, QT dispersion (QTd), and T peak-to-end duration (Tpe) were measured from ECGs at admission. Results Both partial and advanced IAB were more common in patients with COVID-19, although statistical significance was only observed for advanced IAB (11.5% in COVID-19 patients vs. 0.0% in controls, p=0.005). There were no differences between the groups for QTc, QTd or Tpe. On Bayesian analyses, there was strong evidence favoring an association between COVID-19 and advanced IAB (BF10:16), whereas there was no evidence for an association for partial IAB, QTc, QTd, or Tpe (BF10<1 for all). Conclusions Patients hospitalized with COVID-19 were more likely to have advanced IAB, which may explain why AF is more frequent in these patients.
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Affiliation(s)
- Rengin CETIN GUVENC
- Okan University Faculty of Medicine, Department of Cardiology, Istanbul, Turkey
| | - Ali Kaan GUREN
- University of Health Sciences Turkey, Haydarpasa Numune Training and Research Hospital, Clinic of Internal Medicine, Istanbul, Turkey
| | - Busra ENGUR
- University of Health Sciences Turkey, Haydarpasa Numune Training and Research Hospital, Clinic of Internal Medicine, Istanbul, Turkey
| | - Selin CELIK
- University of Health Sciences Turkey, Haydarpasa Numune Training and Research Hospital, Clinic of Internal Medicine, Istanbul, Turkey
| | - Refik DEMIRTUNC
- University of Health Sciences Turkey, Haydarpasa Numune Training and Research Hospital, Clinic of Internal Medicine, Istanbul, Turkey
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Czornobil R, Abou-Assali O, Remily-Wood E, Lynch DR, Noujaim SF, Chidipi B. The Cardiac Calcium Handling Machinery is Remodeled in Friedreich's Ataxia. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.09.566141. [PMID: 38014032 PMCID: PMC10680642 DOI: 10.1101/2023.11.09.566141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Background Friedreich's ataxia (FA) is an inherited neurodegenerative disorder that causes progressive nervous system damage resulting in impaired muscle coordination. FA is the most common autosomal recessive form of ataxia and is caused by an expansion of the DNA triplet guanine-adenine-adenine (GAA) in the first intron of the Frataxin gene (FXN), located on chromosome 9q13. In the unaffected population, the number of GAA repeats ranges from 6 to 27 repetitions. In FA patients, GAA repeat expansions range from 44 to 1,700 repeats which decreases frataxin protein expression. Frataxin is a mitochondrial protein essential for various cellular functions, including iron metabolism. Reduced frataxin expression is thought to negatively affect mitochondrial iron metabolism, leading to increased oxidative damage. Although FA is considered a neurodegenerative disorder, FA patients display heart disease that includes hypertrophy, heart failure, arrhythmias, conduction abnormalities, and cardiac fibrosis. Objective In this work, we investigated whether abnormal Ca 2+ handling machinery is the molecular mechanism that perpetuates cardiac dysfunction in FA. Methods We used the frataxin knock-out (FXN-KO) mouse model of FA as well as human heart samples from donors with FA and from unaffected donors. ECG and echocardiography were used to assess cardiac function in the mice. Expression of calcium handling machinery proteins was assessed with proteomics and western blot. In left ventricular myocytes from FXN-KO and FXN-WT mice, the IonOptix system was used for calcium imaging, the seahorse assay was utilized to measure oxygen consumption rate (OCR), and confocal imaging was used to quantify the mitochondrial membrane potential (Δψm) and reactive oxygen species (ROS). Results We found that major contractile proteins, including SERCA2a and Ryr2, were downregulated in human left ventricular samples from deceased donors with FA compared to unaffected donors, similar to the downregulation of these proteins in the left ventricular tissue from FXN-KO compared to FXN-WT. On the ECG, the RR, PR, QRS, and QTc were significantly longer in the FXN-KO mice compared to FXN-WT. The ejection fraction and fractional shortening were significantly decreased and left ventricular wall thickness and diameter were significantly increased in the FXN-KO mice versus FXN-WT. The mitochondrial membrane potential Δψm was depolarized, ROS levels were elevated, and OCR was decreased in ventricular myocytes from FXN-KO versus FXN-WT. Conclusion The development of left ventricular contractile dysfunction in FA is associated with reduced expression of calcium handling proteins and mitochondrial dysfunction.
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Lindow T, Maanja M, Schelbert EB, Ribeiro AH, Ribeiro ALP, Schlegel TT, Ugander M. Heart age gap estimated by explainable advanced electrocardiography is associated with cardiovascular risk factors and survival. EUROPEAN HEART JOURNAL. DIGITAL HEALTH 2023; 4:384-392. [PMID: 37794867 PMCID: PMC10545529 DOI: 10.1093/ehjdh/ztad045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/05/2023] [Indexed: 10/06/2023]
Abstract
Aims Deep neural network artificial intelligence (DNN-AI)-based Heart Age estimations have been presented and used to show that the difference between an electrocardiogram (ECG)-estimated Heart Age and chronological age is associated with prognosis. An accurate ECG Heart Age, without DNNs, has been developed using explainable advanced ECG (A-ECG) methods. We aimed to evaluate the prognostic value of the explainable A-ECG Heart Age and compare its performance to a DNN-AI Heart Age. Methods and results Both A-ECG and DNN-AI Heart Age were applied to patients who had undergone clinical cardiovascular magnetic resonance imaging. The association between A-ECG or DNN-AI Heart Age Gap and cardiovascular risk factors was evaluated using logistic regression. The association between Heart Age Gaps and death or heart failure (HF) hospitalization was evaluated using Cox regression adjusted for clinical covariates/comorbidities. Among patients [n = 731, 103 (14.1%) deaths, 52 (7.1%) HF hospitalizations, median (interquartile range) follow-up 5.7 (4.7-6.7) years], A-ECG Heart Age Gap was associated with risk factors and outcomes [unadjusted hazard ratio (HR) (95% confidence interval) (5 year increments): 1.23 (1.13-1.34) and adjusted HR 1.11 (1.01-1.22)]. DNN-AI Heart Age Gap was associated with risk factors and outcomes after adjustments [HR (5 year increments): 1.11 (1.01-1.21)], but not in unadjusted analyses [HR 1.00 (0.93-1.08)], making it less easily applicable in clinical practice. Conclusion A-ECG Heart Age Gap is associated with cardiovascular risk factors and HF hospitalization or death. Explainable A-ECG Heart Age Gap has the potential for improving clinical adoption and prognostic performance compared with existing DNN-AI-type methods.
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Affiliation(s)
- Thomas Lindow
- Kolling Institute, Royal North Shore Hospital, University of Sydney, Sydney, Australia
- Department of Clinical Physiology, Research and Development, Växjö Central Hospital, Region Kronoberg, Sweden
- Clinical Physiology, Clinical Sciences, Lund University, Sweden
| | - Maren Maanja
- Department of Clinical Physiology, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | | | - Antônio H Ribeiro
- Department of Information Technology, Uppsala University, Uppsala, Sweden
| | - Antonio Luiz P Ribeiro
- Telehealth Center, Hospital das Clínicas, and Internal Medicine Department, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Todd T Schlegel
- Department of Clinical Physiology, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
- Nicollier-Schlegel SARL, Trélex, Switzerland
| | - Martin Ugander
- Kolling Institute, Royal North Shore Hospital, University of Sydney, Sydney, Australia
- Department of Clinical Physiology, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
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7
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Lampert J, Power D, Havaldar S, Govindarajulu U, Kawamura I, Maan A, Miller MA, Menon K, Koruth J, Whang W, Bagiella E, Bayes-Genis A, Musikantow D, Turagam M, Bayes de Luna A, Halperin J, Dukkipati SR, Vaid A, Nadkarni G, Glicksberg B, Fuster V, Reddy VY. Interatrial Block Association With Adverse Cardiovascular Outcomes in Patients Without a History of Atrial Fibrillation. JACC Clin Electrophysiol 2023; 9:1804-1815. [PMID: 37354170 DOI: 10.1016/j.jacep.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 06/26/2023]
Abstract
BACKGROUND Interatrial block (IAB) is associated with thromboembolism and atrial arrhythmias. However, prior studies included small patient cohorts so it remains unclear whether IAB predicts adverse outcomes particularly in context of atrial fibrillation (AF)/atrial flutter (AFL). OBJECTIVES This study sought to determine whether IAB portends increased stroke risk in a large cohort in the presence or absence of AFAF/AFL. METHODS We performed a 5-center retrospective analysis of 4,837,989 electrocardiograms (ECGs) from 1,228,291 patients. IAB was defined as P-wave duration ≥120 ms in leads II, III, or aVF. Measurements were extracted as .XML files. After excluding patients with prior AF/AFL, 1,825,958 ECGs from 458,994 patients remained. Outcomes were analyzed using restricted mean survival time analysis and restricted mean time lost. RESULTS There were 86,317 patients with IAB and 355,032 patients without IAB. IAB prevalence in the cohort was 19.6% and was most common in Black (26.1%), White (20.9%), and Hispanic (18.5%) patients and least prevalent in Native Americans (9.2%). IAB was independently associated with increased stroke probability (restricted mean time lost ratio coefficient [RMTLRC]: 1.43; 95% CI: 1.35-1.51; tau = 1,895), mortality (RMTLRC: 1.14; 95% CI: 1.07-1.21; tau = 1,924), heart failure (RMTLRC: 1.94; 95% CI: 1.83-2.04; tau = 1,921), systemic thromboembolism (RMTLRC: 1.62; 95% CI: 1.53-1.71; tau = 1,897), and incident AF/AFL (RMTLRC: 1.16; 95% CI: 1.10-1.22; tau = 1,888). IAB was not associated with stroke in patients with pre-existing AF/AFL. CONCLUSIONS IAB is independently associated with stroke in patients with no history of AF/AFL even after adjustment for incident AF/AFL and CHA2DS2-VASc score. Patients are at increased risk of stroke even when AF/AFL is not identified.
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Affiliation(s)
- Joshua Lampert
- Helmsley Electrophysiology Center, Mount Sinai Hospital, New York, New York, USA. https://twitter.com/joshuamlampertmd
| | - David Power
- Mount Sinai Heart, Mount Sinai Hospital, New York, New York, USA
| | - Shreyas Havaldar
- Hasso Plattner Institute for Digital Health at Mount Sinai, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Usha Govindarajulu
- Center for Biostatistics, Department of Population Health, Mount Sinai Hospital, New York, New York, USA
| | - Iwanari Kawamura
- Helmsley Electrophysiology Center, Mount Sinai Hospital, New York, New York, USA
| | - Abhishek Maan
- Helmsley Electrophysiology Center, Mount Sinai Hospital, New York, New York, USA
| | - Marc A Miller
- Helmsley Electrophysiology Center, Mount Sinai Hospital, New York, New York, USA
| | - Kartikeya Menon
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jacob Koruth
- Helmsley Electrophysiology Center, Mount Sinai Hospital, New York, New York, USA
| | - William Whang
- Helmsley Electrophysiology Center, Mount Sinai Hospital, New York, New York, USA
| | - Emilia Bagiella
- Center for Biostatistics, Department of Population Health, Mount Sinai Hospital, New York, New York, USA
| | - Antoni Bayes-Genis
- Heart Institute, Hospital Universitario Germans trias I Pujol, Badalona, Spain
| | - Daniel Musikantow
- Helmsley Electrophysiology Center, Mount Sinai Hospital, New York, New York, USA
| | - Mohit Turagam
- Helmsley Electrophysiology Center, Mount Sinai Hospital, New York, New York, USA
| | - Antoni Bayes de Luna
- Cardiovascular Research Foundation, Cardiovascular ICCC-Program, Research Institute Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
| | | | - Srinivas R Dukkipati
- Helmsley Electrophysiology Center, Mount Sinai Hospital, New York, New York, USA
| | - Akhil Vaid
- Division of Data-Driven and Digital Medicine (D3M), Icahn School of Medicine at Mount Sinai, New York, New York, USA; The Charles Bronfman Institute of Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Girish Nadkarni
- Division of Data-Driven and Digital Medicine (D3M), Icahn School of Medicine at Mount Sinai, New York, New York, USA; The Charles Bronfman Institute of Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Benjamin Glicksberg
- Hasso Plattner Institute for Digital Health at Mount Sinai, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Valentin Fuster
- Mount Sinai Heart, Mount Sinai Hospital, New York, New York, USA
| | - Vivek Y Reddy
- Helmsley Electrophysiology Center, Mount Sinai Hospital, New York, New York, USA.
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Alteraciones electrofisiológicas en el músculo auricular de rata con síndrome metabólico. MOVIMIENTO CIENTÍFICO 2022. [DOI: 10.33881/2011-7191.mct.15201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
El estilo de vida actual ha aumentado la prevalencia de Síndrome Metabólico (SM) el cual se ha relacionado con la arritmia más común a nivel mundial: la fibrilación auricular. En un modelo de rata con SM se han reportado cambios en el nodo senoauricular, sin embargo, el papel del músculo auricular en esta patología aún sigue sin conocerse. El objetivo de este trabajo es determinar si el SM genera arritmias supraventriculares en un modelo de rata y su relación con alteraciones en la morfología del potencial de acción auricular. Metodología: se utilizaron ratas Wistar macho a las cuales se indujo SM. Se midieron parámetros metabólicos, morfométricos, se registró el electrocardiograma (ECG) in vivo y potenciales de acción auriculares (PA) en una preparación de tejido aislado en donde se midió la excitabilidad. Resultados: en los animales del grupo SM se observaron alteraciones en el ECG como onda P bifásica y onda P mellada relacionado con la disminución en la duración del PA durante la repolarización en endocardio de la aurícula derecha y epicardio de aurícula izquierda, también se observaron cambios transmurales en la duración del PA en ambas aurículas y un desplazamiento hacia la derecha en la gráfica de excitabilidad en los registros del grupo SM. Concusiones: el SM remodela la actividad eléctrica supraventricular ya que modifica la heterogeneidad transmural de las aurículas aumentando la excitabilidad. Se propone que estos cambios contribuyen a la generación y mantenimiento de arritmias supraventriculares.
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Lindow T, Palencia-Lamela I, Schlegel TT, Ugander M. Heart age estimated using explainable advanced electrocardiography. Sci Rep 2022; 12:9840. [PMID: 35701514 PMCID: PMC9198017 DOI: 10.1038/s41598-022-13912-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 05/30/2022] [Indexed: 11/24/2022] Open
Abstract
Electrocardiographic (ECG) Heart Age conveying cardiovascular risk has been estimated by both Bayesian and artificial intelligence approaches. We hypothesised that explainable measures from the 10-s 12-lead ECG could successfully predict Bayesian 5-min ECG Heart Age. Advanced analysis was performed on ECGs from healthy subjects and patients with cardiovascular risk or proven heart disease. Regression models were used to predict patients' Bayesian 5-min ECG Heart Ages from their standard, resting 10-s 12-lead ECGs. The difference between 5-min and 10-s ECG Heart Ages were analyzed, as were the differences between 10-s ECG Heart Age and the chronological age (the Heart Age Gap). In total, 2,771 subjects were included (n = 1682 healthy volunteers, n = 305 with cardiovascular risk factors, n = 784 with cardiovascular disease). Overall, 10-s Heart Age showed strong agreement with the 5-min Heart Age (R2 = 0.94, p < 0.001, mean ± SD bias 0.0 ± 5.1 years). The Heart Age Gap was 0.0 ± 5.7 years in healthy individuals, 7.4 ± 7.3 years in subjects with cardiovascular risk factors (p < 0.001), and 14.3 ± 9.2 years in patients with cardiovascular disease (p < 0.001). Heart Age can be accurately estimated from a 10-s 12-lead ECG in a transparent and explainable fashion based on known ECG measures, without deep neural network-type artificial intelligence techniques. The Heart Age Gap increases markedly with cardiovascular risk and disease.
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Affiliation(s)
- Thomas Lindow
- Kolling Institute, Royal North Shore Hospital, University of Sydney, Sydney, Australia
- Department of Clinical Physiology, Research and Development, Växjö Central Hospital, Region Kronoberg, Sweden
- Clinical Physiology, Clinical Sciences, Lund University, Lund, Sweden
| | - Israel Palencia-Lamela
- Kolling Institute, Royal North Shore Hospital, University of Sydney, Sydney, Australia
- Davidson College, Davidson, NC, USA
| | - Todd T Schlegel
- Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
- Nicollier-Schlegel SARL, Trélex, Switzerland
| | - Martin Ugander
- Kolling Institute, Royal North Shore Hospital, University of Sydney, Sydney, Australia.
- Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden.
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10
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Arauz A, Arteaga C, Zapata-Gómez C, Ramos-Ventura C, Méndez B, Otiniano-Sifuentes R, Haseeb S, González-Oscoy R, Baranchuk A. Embolic stroke of undetermined source: beyond atrial fibrillation. NEUROLOGÍA (ENGLISH EDITION) 2022; 37:362-370. [PMID: 35672123 DOI: 10.1016/j.nrleng.2019.03.021] [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: 11/27/2018] [Accepted: 03/03/2019] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION Embolic stroke of undetermined source (ESUS) accounts for 25% of all cerebral infarcts; only 30% are associated with paroxysmal atrial fibrillation (AF). Various biochemical, electrocardiographic, and echocardiographic findings may suggest left atrial damage and increased risk of embolism in the absence of clinically documented AF or atrial flutter. In this review, we analyse the available evidence on atrial cardiopathy or atrial disease, its involvement in ESUS, and its identification through electrocardiographic, echocardiographic, and serum markers and its possible therapeutic implications. DEVELOPMENT A systematic search was conducted on MEDLINE (PubMed) using the following MeSH terms: MeSH [ESUS]+[atrial cardiopathy]+[atrial fibrillation]+[interatrial block]+[treatment]. We selected what we considered to be the most useful original prospective or retrospective studies and systematic reviews. We then read the full texts of the articles and checked the references cited in each article. We analyse epidemiological and demographic variables of patients with ESUS, as well as recent evidence related to presentation and prognosis and factors associated with recurrence and mortality. We review the contribution of atrial cardiopathy diagnosis prior to the detection of AF and the clinical, electrocardiographic, and echocardiographic variables and the biochemical markers associated with its development and its potential contribution to cerebral embolism. CONCLUSIONS The systematic search of biochemical and electrocardiographic, and echocardiographic alterations can be useful to identify ESUS patients at higher risk of recurrence.
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Affiliation(s)
- A Arauz
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, Mexico; Queen's University, Kingston, Ontario, Canada.
| | - C Arteaga
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, Mexico
| | - C Zapata-Gómez
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, Mexico
| | - C Ramos-Ventura
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, Mexico
| | - B Méndez
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, Mexico
| | - R Otiniano-Sifuentes
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, Mexico
| | - S Haseeb
- Queen's University, Kingston, Ontario, Canada
| | - R González-Oscoy
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, Mexico
| | - A Baranchuk
- Queen's University, Kingston, Ontario, Canada
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11
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Arauz A, Arteaga C, Zapata-Gómez C, Ramos-Ventura C, Méndez B, Otiniano-Sifuentes R, Haseeb S, González-Oscoy R, Baranchuk A. Embolic stroke of undetermined source: Beyond atrial fibrillation. Neurologia 2022; 37:362-370. [PMID: 31060753 DOI: 10.1016/j.nrl.2019.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/31/2019] [Accepted: 03/03/2019] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION Embolic stroke of undetermined source (ESUS) accounts for 25% of all cerebral infarcts; only 30% are associated with paroxysmal atrial fibrillation (AF). Various biochemical, electrocardiographic, and echocardiographic findings may suggest left atrial damage and increased risk of embolism in the absence of clinically documented AF or atrial flutter. In this review, we analyse the available evidence on atrial cardiopathy or atrial disease, its involvement in ESUS, and its identification through electrocardiographic, echocardiographic, and serum markers and its possible therapeutic implications. DEVELOPMENT A systematic search was conducted on MEDLINE (PubMed) using the following MeSH terms: MeSH [ESUS]+[atrial cardiopathy]+[atrial fibrillation]+[interatrial block]+[treatment]. We selected what we considered to be the most useful original prospective or retrospective studies and systematic reviews. We then read the full texts of the articles and checked the references cited in each article. We analyse epidemiological and demographic variables of patients with ESUS, as well as recent evidence related to presentation and prognosis and factors associated with recurrence and mortality. We review the contribution of atrial cardiopathy diagnosis prior to the detection of AF and the clinical, electrocardiographic, and echocardiographic variables and the biochemical markers associated with its development and its potential contribution to cerebral embolism. CONCLUSIONS The systematic search of biochemical and electrocardiographic, and echocardiographic alterations can be useful to identify ESUS patients at higher risk of recurrence.
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Affiliation(s)
- A Arauz
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, México; Queen̿s University, Kingston, Ontario, Canadá.
| | - C Arteaga
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, México
| | - C Zapata-Gómez
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, México
| | - C Ramos-Ventura
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, México
| | - B Méndez
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, México
| | - R Otiniano-Sifuentes
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, México
| | - S Haseeb
- Queen̿s University, Kingston, Ontario, Canadá
| | - R González-Oscoy
- Clínica de Enfermedad Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Ciudad de México, México
| | - A Baranchuk
- Queen̿s University, Kingston, Ontario, Canadá
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12
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Istolahti T, Eranti A, Huhtala H, Tynkkynen J, Lyytikäinen LP, Kähönen M, Lehtimäki T, Eskola M, Anttila I, Jula A, Nikus K, Hernesniemi J. Interatrial block and P terminal force in the general population – Longitudinal changes, risk factors and prognosis. J Electrocardiol 2022; 73:12-20. [DOI: 10.1016/j.jelectrocard.2022.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/10/2022] [Accepted: 04/21/2022] [Indexed: 12/13/2022]
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13
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Power DA, Lampert J, Camaj A, Bienstock SW, Kocovic N, Bayes-Genis A, Miller MA, Bayés-de-Luna A, Fuster V. Cardiovascular Complications of Interatrial Conduction Block: JACC State-of-the-Art Review. J Am Coll Cardiol 2022; 79:1199-1211. [PMID: 35331415 DOI: 10.1016/j.jacc.2022.01.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 01/25/2022] [Indexed: 12/11/2022]
Abstract
Interatrial block (IAB) is an electrocardiographic pattern describing the conduction delay between the right and left atria. IAB is classified into 3 degrees of block that correspond to decreasing conduction in the region of Bachmann's bundle. Although initially considered benign in nature, specific subsets of IAB have been associated with atrial arrhythmias, elevated thromboembolic stroke risk, cognitive impairment, and mortality. As the pathophysiologic relationships between IAB and stroke are reinforced, investigation has now turned to the potential benefit of early detection, atrial imaging, cardiovascular risk factor modification, antiarrhythmic pharmacotherapy, and stroke prevention with oral anticoagulation. This review provides a contemporary overview of the epidemiology, pathophysiology, diagnosis, and management of IAB, with a focus on future directions.
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Affiliation(s)
- David A Power
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
| | - Joshua Lampert
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Anton Camaj
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Solomon W Bienstock
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Nikola Kocovic
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Antoni Bayes-Genis
- Heart Institute, Hospital Universitario Germans Trias I Pujol, Badalona, Spain
| | - Marc A Miller
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Antoni Bayés-de-Luna
- Cardiovascular Research Foundation, Cardiovascular ICCC-Program, Research Institute Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
| | - Valentin Fuster
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain
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Sun H, Zhou C, Xu L, Xu T. A meta-analysis of the association of atrial septal abnormalities and atrial vulnerability. Medicine (Baltimore) 2021; 100:e27165. [PMID: 34477173 PMCID: PMC8416013 DOI: 10.1097/md.0000000000027165] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 08/19/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The mechanism of cryptogenic stroke (CS) in patients with atrial septal abnormalities remains unclear, and the increased incidence of atrial vulnerability may be one of the reasons. We performed this meta-analysis to clarify the association between atrial septal abnormalities and atrial vulnerability, and to provide evidence-based basis for the prevention and mechanism of CS. METHODS We systematically searched for studies on the association between atrial septal abnormalities and atrial vulnerability, and pooled available data on types of atrial septal abnormalities, types of atrial vulnerability, and methods of atrial vulnerability detection. The primary endpoints were the occurrence of atrial arrhythmias or P wave abnormalities. Random-effects models were used to calculate odds ratios (OR) and 95% confidence intervals (CI). RESULTS Twelve case-control studies were eligible. Compared with the control group, patients with atrial septal abnormalities had a higher risk of atrial vulnerability (OR: 1.93; 95% CI: 1.13-3.30, P = .02). Data based on stroke patients showed that the group with atrial septal abnormalities had a higher risk of atrial vulnerability than the control group (OR: 2.00; 95% CI: 1.13-3.53, P = .02). However, there was no significant difference in the incidence of atrial vulnerability between the 2 groups of nonstroke patients. Subgroup analysis showed that although atrial septal abnormality increased the risk of atrial vulnerability in the subgroup of atrial septal aneurysm (OR: 1.68; 95% CI: 0.47-5.95, P = .42), the subgroup of atrial fibrillation (AF)/atrial fluster (OR: 1.81; 95% CI: 0.94-3.46, P = .07) and the subgroup of subcutaneous recording system (OR: 1.33; 95% CI: 0.68-2.61, P = .41), the difference was not statistically significant. CONCLUSIONS Atrial septal abnormalities can increase the risk of atrial vulnerability, and atrial arrhythmia caused by atrial septal abnormalities may be one of the mechanisms of CS.
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15
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Sex-Specific Impacts of Exercise on Cardiovascular Remodeling. J Clin Med 2021; 10:jcm10173833. [PMID: 34501285 PMCID: PMC8432130 DOI: 10.3390/jcm10173833] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/21/2021] [Accepted: 08/21/2021] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular diseases (CVD) remain the leading cause of death in men and women. Biological sex plays a major role in cardiovascular physiology and pathological cardiovascular remodeling. Traditionally, pathological remodeling of cardiovascular system refers to the molecular, cellular, and morphological changes that result from insults, such as myocardial infarction or hypertension. Regular exercise training is known to induce physiological cardiovascular remodeling and beneficial functional adaptation of the cardiovascular apparatus. However, impact of exercise-induced cardiovascular remodeling and functional adaptation varies between males and females. This review aims to compare and contrast sex-specific manifestations of exercise-induced cardiovascular remodeling and functional adaptation. Specifically, we review (1) sex disparities in cardiovascular function, (2) influence of biological sex on exercise-induced cardiovascular remodeling and functional adaptation, and (3) sex-specific impacts of various types, intensities, and durations of exercise training on cardiovascular apparatus. The review highlights both animal and human studies in order to give an all-encompassing view of the exercise-induced sex differences in cardiovascular system and addresses the gaps in knowledge in the field.
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16
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Lindow T, Lindqvist P. The Prevalence of Advanced Interatrial Block and Its Relationship to Left Atrial Function in Patients with Transthyretin Cardiac Amyloidosis. J Clin Med 2021; 10:2764. [PMID: 34201866 PMCID: PMC8267751 DOI: 10.3390/jcm10132764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/20/2021] [Accepted: 06/22/2021] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Advanced interatrial block (aIAB), which is associated with incident atrial fibrillation and stroke, occurs in the setting of blocked interatrial conduction. Atrial amyloid deposition could be a possible substrate for reduced interatrial conduction, but the prevalence of aIAB in patients with transthyretin cardiac amyloidosis (ATTR-CA) is unknown. We aimed to describe the prevalence of aIAB and its relationship to left atrial function in patients with ATTR-CA in comparison to patients with HF and left ventricular hypertrophy but no CA. METHODS The presence of aIAB was investigated among 75 patients (49 patients with ATTR-CA and 26 with HF but no CA). A comprehensive echocardiographic investigation was performed in all patients, including left atrial strain and strain rate measurements. RESULTS Among patients with ATTR-CA, 27% had aIAB and in patients with HF but no CA, this figure was 21%, (p = 0.78). The presence of aIAB was associated with a low strain rate during atrial contraction (<0.91 s-1) (OR: 5.2 (1.4-19.9)), even after adjusting for age and LAVi (OR: 4.5 (1.0-19.19)). CONCLUSIONS Advanced interatrial block is common among patients with ATTR-CA, as well as in patients with heart failure and left ventricular hypertrophy but no CA. aIAB is associated with reduced left atrial contractile function.
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Affiliation(s)
- Thomas Lindow
- Kolling Institute, Royal North Shore Hospital, University of Sydney, Sydney, NSW 2065, Australia
- Department of Clinical Physiology, Research and Development, Växjö Central Hospital, Region Kronoberg, 351 88 Växjö, Sweden
- Clinical Physiology, Clinical Sciences, Lund University, 221 00 Lund, Sweden
| | - Per Lindqvist
- Department of Clinical Physiology, Surgical and Perioperative Sciences, Umeå University, 901 87 Umeå, Sweden;
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17
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Alves M, Abrantes AM, Portugal G, Cruz MM, Reimão S, Caldeira D, Ferro JM, Ferreira JJ. Does Parkinson's Disease Increase the Risk of Atrial Fibrillation? Insights From Electrocardiogram and Risk Scores From a Case-Control Study. Front Neurol 2021; 12:633900. [PMID: 34054687 PMCID: PMC8149901 DOI: 10.3389/fneur.2021.633900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 03/31/2021] [Indexed: 11/27/2022] Open
Abstract
Background: Previous studies suggested that Parkinson's Disease (PD) patients could have an increased risk of atrial fibrillation. However, data supporting this association is not robust. We aimed to compare the potential risk of atrial fibrillation associated with PD in an age and gender matched case-control study, comparing the p-wave indexes from electrocardiograms and clinical risk scores among groups. Methods: A cross-sectional case-control study was performed. All subjects included in the analysis were clinically evaluated and subjected to a 12-lead electrocardiogram. Two blinded independent raters measured the p-wave duration. Subjects were classified as having normal P-wave duration (<120 ms), partial IAB (P-wave duration ≥ 120 ms, positive in inferior leads), and advanced IAB (p-wave duration ≥ 120 ms with biphasic morphology in inferior leads). Atrial fibrillation risk scores (CHARGE-AF, HATCH, and HAVOC) were calculated. Results: From 194 potential participants, three were excluded from the control group due to a previous diagnosis of atrial fibrillation. Comparing the PD patients (n = 97) with controls (n = 95), there were no statistically significant differences regarding the mean p-wave duration (121 ms vs. 122 ms, p = 0.64) and proportion of advanced interatrial block (OR = 1.4, 95%CI = 0.37–5.80, p = 0.58). All patients had a low or medium risk of developing atrial fibrillation based on the clinical scores. There were no differences between the PD patients and controls regarding the mean values of CHARGE-AF, HATCH, and HAVOC. Conclusions: Our results do not support the hypothesis that PD patients have an increased risk of atrial fibrillation based on the p-wave predictors and atrial fibrillation clinical scores.
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Affiliation(s)
- Mariana Alves
- Serviço de Medicina III, Hospital Pulido Valente, Centro Hospitalar Universitário Lisboa Norte (CHULN), Lisbon, Portugal.,Laboratory of Clinical Pharmacology and Therapeutics, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Faculdade de Medicina, Instituto de Medicina Molecular, Universidade de Lisboa, Lisbon, Portugal
| | - Ana Mafalda Abrantes
- Medicina 2, Clínica Universitária de Medicina, Hospital Santa Maria, Centro Hospitalar Universitário Lisboa Norte (CHULN), Lisbon, Portugal
| | - Gonçalo Portugal
- Serviço de Medicina III, Hospital Pulido Valente, Centro Hospitalar Universitário Lisboa Norte (CHULN), Lisbon, Portugal
| | - M Manuela Cruz
- Unidade de Saúde Familiar (USF) Benfica Jardim, Agrupamentos de Centros de Saúde (ACES) Lisboa Norte, Lisbon, Portugal
| | - Sofia Reimão
- Laboratory of Clinical Pharmacology and Therapeutics, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Faculdade de Medicina, Instituto de Medicina Molecular, Universidade de Lisboa, Lisbon, Portugal.,Neurological Imaging Department, Centro Hospitalar Universitário Lisboa Norte (CHULN), Lisbon, Portugal.,Faculdade de Medicina, Imaging University Clinic, Universidade de Lisboa, Lisbon, Portugal
| | - Daniel Caldeira
- Laboratory of Clinical Pharmacology and Therapeutics, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Faculdade de Medicina, Centro Cardiovascular da Universidade de Lisboa, Centro Académico de Medicina de Lisboa (CAML), Universidade de Lisboa, Lisbon, Portugal.,Serviço de Cardiologia, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte (CHULN), Lisbon, Portugal
| | - José M Ferro
- Faculdade de Medicina, Instituto de Medicina Molecular, Universidade de Lisboa, Lisbon, Portugal.,Serviço de Neurologia, Departamento de Neurociências e Saúde Mental, Centro Hospitalar Universitário Lisboa Norte (CHULN), Lisbon, Portugal
| | - Joaquim J Ferreira
- Laboratory of Clinical Pharmacology and Therapeutics, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Faculdade de Medicina, Instituto de Medicina Molecular, Universidade de Lisboa, Lisbon, Portugal.,Campus Neurológico Sénior, Torres Vedras, Portugal
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Rungpradubvong V. Resumption of interatrial conduction after atrial premature beat in baseline interatrial aberrancy. Ann Noninvasive Electrocardiol 2021; 26:e12838. [PMID: 33629496 PMCID: PMC8588376 DOI: 10.1111/anec.12838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 11/30/2022] Open
Abstract
Interatrial block (IAB) is a delay or blockage of interatrial conduction from the right atrium to the left atrium, causing prolongation of the P‐wave duration on the electrocardiogram. This condition is unfortunately not uncommon in clinical practice, especially among the elderly. It is often overlooked because the P wave is small and abnormalities can be difficult to detect. An isolated IAB does not usually cause any abnormal symptoms and may not require any specific treatment. Nevertheless, a relationship between an IAB and other cardiovascular conditions including left atrial electromechanical dysfunction, atrial remodeling, atrial fibrosis, atrial fibrillation, and stroke has been reported. Early diagnosis of this condition is critical. This case report presents a functional interatrial block or interatrial aberrancy that returned to normal after an atrial premature complex where the interatrial conduction remained normal in subsequent beats.
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Affiliation(s)
- Voravut Rungpradubvong
- Division of Cardiovascular Medicine, Department of Internal Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Cardiac center, King Chulalongkorn Memorial Hospital, The Thai Red Cross Society, Bangkok, Thailand
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19
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Iomini PA, Martínez-Sellés M, Elosua R, Bayés-de-Luna A, Baranchuk A. [Bayés Syndrome, Stroke and Dementia]. ARCHIVOS PERUANOS DE CARDIOLOGIA Y CIRUGIA CARDIOVASCULAR 2021; 2:27-39. [PMID: 37727263 PMCID: PMC10506554 DOI: 10.47487/apcyccv.v2i1.126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/03/2021] [Indexed: 09/21/2023]
Abstract
Bayés's syndrome is a clinical entity based on the association between advanced interatrial block and the development of supraventricular tachyarrhythmia, being atrial fibrillation (AF) the most frequent. This association was discovered by Prof. Antoni Bayés de Luna in the '80s. Further studies by other groups found a strong relationship between Bayés's syndrome and thromboembolic phenomena, being stroke the most serious. Moreover, patients with this syndrome have an increased incidence of cognitive impairment and dementia. This observation triggered the question about whether the use of anticoagulation therapy prior to the documentation of AF could prevent A-IAB associated thromboembolic events. There are ongoing studies in different phases of development aiming to compare the efficacy of anticoagulation in patients with A-IAB with no prior documentation of AF. The outcomes of these studies will allow determining the efficacy of this early therapeutic intervention, and help deciding the role of anticoagulation in patients with A-IAB and no demonstrated AF.
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Affiliation(s)
- Pablo A. Iomini
- *Correspondencia: Balcarce 434, Morón (CP 1708), Buenos Aires, Argentina. Correo
| | - Manuel Martínez-Sellés
- Centro de Investigación en Red de Enfermedades Cardiovasculares (CIBERCV). EspañaCentro de InvestigaciónRed de Enfermedades Cardiovasculares (CIBERCV)España
- Hospital General Universitario Gregorio Marañón. Madrid, EspañaHospital General Universitario Gregorio MarañónMadridEspaña
- Universidad Europea de Madrid y Universidad Complutense de Madrid, EspañaUniversidad Europea de MadridUniversidad Europea de Madrid y Universidad Complutense de MadridSpain
| | - Roberto Elosua
- Centro de Investigación en Red de Enfermedades Cardiovasculares (CIBERCV). EspañaCentro de InvestigaciónRed de Enfermedades Cardiovasculares (CIBERCV)España
- Facultad de Medicina, Universidad de Vic-Universidad Central de Catalunya. Barcelona, EspañaFacultad de MedicinaUniversidad Central de CatalunyaBarcelonaEspaña
- Fundación Investigación Cardiovascular, Programa Cardiovascular-ICCC, Institut de Recerca del Hospital de la Santa Creu I Sant Pau, IIB-Sant Pau. Barcelona, EspañaFundación Investigación CardiovascularPrograma Cardiovascular-ICCCInstitut de Recerca del Hospital de la Santa Creu I Sant Pau, IIB-Sant PauBarcelonaEspaña
| | - Antoni Bayés-de-Luna
- Fundación Investigación Cardiovascular, Programa Cardiovascular-ICCC, Institut de Recerca del Hospital de la Santa Creu I Sant Pau, IIB-Sant Pau. Barcelona, EspañaFundación Investigación CardiovascularPrograma Cardiovascular-ICCCInstitut de Recerca del Hospital de la Santa Creu I Sant Pau, IIB-Sant PauBarcelonaEspaña
| | - Adrián Baranchuk
- Division of cardiology, Kingston Health Science Center, Kingston.Ontario, CanadaDivision of cardiologyKingston Health Science CenterOntarioCanada
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Chawla D, Jahangir A, Cooley R, Sra J, Tajik AJ. Authors' Reply. J Am Soc Echocardiogr 2020; 33:910-911. [DOI: 10.1016/j.echo.2020.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 02/12/2020] [Indexed: 10/24/2022]
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ALTUNBAŞ G, VURUŞKAN E, YILMAZ COŞKUN F, SUCU M. ST-segment elevasyonlu akut miyokard infarktüsü ile başvuran hastalarda interatrial ileti bozuklukları. EGE TIP DERGISI 2020. [DOI: 10.19161/etd.697843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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23
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Cai W, Xu S, Li X. Cardiac arrhythmia caused by a novel type of atrial conduction block: A case report. Medicine (Baltimore) 2020; 99:e19264. [PMID: 32221062 PMCID: PMC7220769 DOI: 10.1097/md.0000000000019264] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 12/08/2019] [Accepted: 01/20/2020] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION We report an extremely rare case of atrial conduction block with unusual electrocardiogram (ECG) results, which has never been reported before. There are 2 types of atrial conduction block that result in atrial irregularities or complete atrial conduction block. The former is similar to other types of cardiac blocks such as sinus node to atrial block, atrial to ventricular block, or bundle branch blocks, which are characterized by 2 P waves at a specific frequency. This is due to the complete inner atrial block that results in the atrial muscle being divided into 2 parts without conduction between them so that each part has its rhythm generator. The objective of this report is to examine the cause of inner atrial conduction block and to promote awareness of this disorder. PATIENT CONCERNS An 81-year-old Chinese male patient was examined after complaining about chest discomfort, and it was found that he had atrial tachycardia; ECG results revealed a P wave loss at specific intervals (or P wave separation). DIAGNOSIS A diagnosis of P wave loss at specific intervals (or P wave separation) was made based on ECG results. INTERVENTIONS An ECG was performed on the patient OUTCOMES:: It was unclear whether this patient has atrial separation or a new type of atrial conduction block, but our results revealed that this case presents a novel type of atrial conduction block, which we named 'P wave block.' CONCLUSION The type of EKG shown in this case has never been reported. This EKG shows a new type of conduction block in the atrium, temporarily named as a new type of P wave block.
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Affiliation(s)
| | | | - Xiaodong Li
- Department of ECG, Resident physician, Zhejiang Province People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P. R. China
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Nayyar R, Sheth D, Chhabra L. Stroke Risk Based on CHA 2DS 2-VASc Score in the Absence of Atrial Fibrillation. Am J Cardiol 2020; 125:658-659. [PMID: 31883677 DOI: 10.1016/j.amjcard.2019.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 11/11/2019] [Indexed: 11/16/2022]
Affiliation(s)
- Raj Nayyar
- Division of Cardiovascular Medicine, Heartland Regional Medical Center, Marion, Illinois
| | - Dwijesh Sheth
- Division of Cardiovascular Medicine, Heartland Regional Medical Center, Marion, Illinois
| | - Lovely Chhabra
- Division of Cardiovascular Medicine, Heartland Regional Medical Center, Marion, Illinois.
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25
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Advanced interatrial block: An electrocardiographic marker for stroke recurrence. J Electrocardiol 2019; 57:1-5. [DOI: 10.1016/j.jelectrocard.2019.07.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 06/28/2019] [Accepted: 07/07/2019] [Indexed: 12/19/2022]
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Interatrial Block: Thromboembolism Risk in the Absence of Atrial Fibrillation. Am J Cardiol 2019; 124:1487. [PMID: 31514964 DOI: 10.1016/j.amjcard.2019.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 08/12/2019] [Indexed: 11/23/2022]
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Chhabra L. David H. Spodick, MD (1927 to 2019). Am J Cardiol 2019. [DOI: 10.1016/j.amjcard.2019.07.012] [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: 10/26/2022]
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Chhabra L. Loss of a cardiology legend: A tribute to Professor David H. Spodick (1927–2019). J Electrocardiol 2019; 56:125-127. [DOI: 10.1016/j.jelectrocard.2019.06.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 06/12/2019] [Indexed: 11/25/2022]
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A Reiffel J. Intra-Atrial Block: Definition and Relationship to Atrial Fibrillation and Other Adverse Outcomes. J Atr Fibrillation 2019; 12:2234. [PMID: 32002116 DOI: 10.4022/jafib.2234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 05/14/2019] [Accepted: 06/26/2019] [Indexed: 12/20/2022]
Abstract
In 1916, Bachmann first reported on the inter-auricular time interval. However relatively little attention was paid to this ECG measurement for decades. Then, in 1956, Samuel Bradley and Henry JJ Marriott reported on intra-atrial block (IAB) in 4,500 ECGs.As defined by them, IAB was a P wave duration of 0.12 sec or longer. Since that time, others have defined IAB as 0.11 sec or longer or 0.12 sec or longer. Several authors have suggested subcategories, such as first-, second-, and third-degree patterns and some have defined specific intra-atrial and inter-atrial pathways. These are of electrocardiographic interest but have not been substantiated as related to different clinical outcomes. Many disorders have been associated with IAB. More importantly, however, IAB has been associated with several adverse outcomes, including sinus node dysfunction, atrial tachyarrhythmias - especially atrial fibrillation, thromboembolic events, and increased mortality. This brief review will detail the above to emphasize to ECG readers the importance of not overlooking IAB in their interpretations.
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Affiliation(s)
- James A Reiffel
- Columbia University c/o 202 Birkdale Lane Jupiter, FL 33458 U.S.A
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Chawla D, Jahangir A, Cooley R, Sra J, Tajik AJ. Isolated Left Atrial Standstill in Patients with Hypertrophic Cardiomyopathy and Atrial Fibrillation after Restoration of Sinus Rhythm. J Am Soc Echocardiogr 2019; 32:1369-1372. [PMID: 31351793 DOI: 10.1016/j.echo.2019.05.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 05/31/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Dhruv Chawla
- Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke's Medical Centers, Milwaukee, Wisconsin
| | - Arshad Jahangir
- Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke's Medical Centers, Milwaukee, Wisconsin; Center for Advanced Atrial Fibrillation Therapies, Advocate Aurora Health, Milwaukee, Wisconsin
| | - Ryan Cooley
- Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke's Medical Centers, Milwaukee, Wisconsin; Center for Advanced Atrial Fibrillation Therapies, Advocate Aurora Health, Milwaukee, Wisconsin
| | - Jasbir Sra
- Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke's Medical Centers, Milwaukee, Wisconsin; Center for Advanced Atrial Fibrillation Therapies, Advocate Aurora Health, Milwaukee, Wisconsin
| | - A Jamil Tajik
- Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke's Medical Centers, Milwaukee, Wisconsin
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Sun G, Zhou Y, Ye N, Wu S, Sun Y. Independent associations of blood pressure and body mass index with interatrial block: a cross-sectional study in general Chinese population. BMJ Open 2019; 9:e029463. [PMID: 31270122 PMCID: PMC6609126 DOI: 10.1136/bmjopen-2019-029463] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES This current study was performed to characterise the independent associations of obesity and hypertension with interatrial block (IAB) after adjusting for cardiovascular risk factors, echocardiographic left atrial diameter (LAD) and left ventricular mass index (LVMI) in a large general Chinese population. DESIGN A cross-sectional study. SETTING AND PARTICIPANTS A total of 11 956 permanent residents (≥35 years of age) from Liaoning Province in China were included in this study. Following the completion of a questionnaire, the enrolled participants were subjected to physical examinations, laboratory analyses, ECG and echocardiogram. Linear and logistic regression analyses were performed to evaluate the associations of hypertension and obesity with IAB. OUTCOME MEASURES IAB was defined as a prolongation of the P wave duration ≥120 ms on a digital 12-lead ECG. RESULTS The prevalence of IAB in hypertensive individuals was higher than the normotensive in both men (9.5 vs 5.9%; p<0.001) and women (6.6 vs 3.6%; p<0.001). In addition, the prevalence of IAB exhibited a sharp increase with advancing body mass index (BMI) in both men (from 4.9% to 13.0%) and women (from 3.5% to 6.9%) (ps- for trend <0.001). Multiple relevant clinical covariates, echocardiographic LAD and LVMI were adjusted in the multivariate linear and logistic regression analyses. The results revealed that systolic blood pressure, diastolic blood pressure and BMI were all independently associated with P wave duration (β=0.02, 0.09 and 0.25, respectively; all ps <0.005). Furthermore, hypertension was found to be independently associated with IAB (OR=1.27; p=0.018), while both overweight and obesity exhibited higher odds of IAB (OR=1.42 and 1.67, respectively; ps <0.005), compared with BMI <24.0 kg/m2. CONCLUSIONS The key findings of this study highlighted that hypertension and overweight/obesity were independently and significantly associated with IAB in general Chinese population.
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Affiliation(s)
- Guozhe Sun
- Department of Cardiovascular Medicine, First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ying Zhou
- Department of Cardiovascular Medicine, First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ning Ye
- Department of Cardiovascular Medicine, First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Shaojun Wu
- Department of Cardiovascular Medicine, First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yingxian Sun
- Department of Cardiovascular Medicine, First Hospital of China Medical University, Shenyang, Liaoning, China
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Tse G, Reddy S, Chopra J, Lee S, Liu T, Bazoukis G, Haseeb S, Lee APW, Letsas KP, Li KHC. Electrocardiographic evidence of abnormal atrial phenotype in Brugada syndrome. J Electrocardiol 2019; 55:102-106. [PMID: 31152990 DOI: 10.1016/j.jelectrocard.2019.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/28/2019] [Accepted: 05/11/2019] [Indexed: 11/24/2022]
Abstract
BACKGROUND Brugada syndrome (BrS) is an inherited ion channelopathy that may predispose affected individuals to atrial cardiomyopathy. We tested the hypothesis that BrS patients have higher degrees of atrial electrophysiological abnormalities compared to controls, and these can be reflected by changes in P-wave parameters determined on the electrocardiogram (ECG). METHODS This was a single-center retrospective study comparing BrS patients to age- and gender-matched control subjects. Mean P-wave duration (PWDmean), maximum PWD (PWDmax) and minimum PWD (PWDmin), P-wave dispersion (PWDmax - PWDmin), and P-wave terminal force in V1 (PTFV1) were measured. PWDmax ≥ 120 ms, in the presence and absence of biphasic P-waves in the inferior leads, were termed advanced and partial inter-atrial block (IAB), respectively. RESULTS The proportion of IAB was significantly higher in BrS patients (28/51; 55%) than in control subjects (14/51; 27%; Fisher's Exact test; P < 0.01). Advanced IAB was observed in two BrS patients but none of the control subjects (P = 0.50). Compared to controls, BrS patients showed higher PWDmean (107 [98-113] vs. 97 [90-108] ms; KWANOVA, P < 0.01), PWDmax (123 [110-132] vs. 113 [107-121] ms; P < 0.001) but statistically indistinguishable PWDmin (82 [72-92] vs. 77 [69-85]; P = 0.09), and P-wave dispersion (38 [26-52] vs. 37 [23-45] ms; P = 0.14). PTFV1 was significantly higher in BrS patients than in control subjects (24 [0-40] vs. 0 [0-27] mm.ms; P < 0.05). CONCLUSION Atrial conduction abnormalities are frequently observed in BrS. These patients may require monitoring for future development of atrial fibrillation and stroke.
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Affiliation(s)
- Gary Tse
- Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, SAR, PR China; Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, SAR, PR China; Faculty of Medicine, Newcastle University, United Kingdom
| | - Sunaina Reddy
- Faculty of Medicine, Palacký University of Olomouc, Czech Republic
| | | | - Sharen Lee
- Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, SAR, PR China; Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, SAR, PR China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, PR China
| | - George Bazoukis
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, Athens, Greece
| | - Sohaib Haseeb
- Division of Cardiology, Kingston Health Science Center, Queen's University, Kingston, Ontario, Canada
| | - Alex Pui Wai Lee
- Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, SAR, PR China
| | - Konstantinos P Letsas
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, Athens, Greece.
| | - Ka Hou Christien Li
- Department of Medicine and Therapeutics, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, SAR, PR China; Li Ka Shing Institute of Health Sciences, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, SAR, PR China; Division of Cardiology, Kingston Health Science Center, Queen's University, Kingston, Ontario, Canada.
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Gao Y, Gong YL, Xia L, Zheng DC. Simulation of inter atrial block based on a human atrial model. J Zhejiang Univ Sci B 2019; 20:300-309. [PMID: 30932375 DOI: 10.1631/jzus.b1800420] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Inter atrial block (IAB) is a prevailing cardiac conduction abnormality that is under-recognized in clinical practice. IAB has strong association with atrial arrhythmia, left atrial enlargement, and electromechanical discordance, increasing the risk of atrial fibrillation (AF) and myocardial ischemia. IAB was generally believed to be caused by impaired conduction along the Bachmann bundle (BB). However, there are three other conduction pathways, including the fibers posteriorly in the vicinity of the right pulmonary veins (VRPV), transseptal fibers in the fossa ovalis (FO), and muscular bundles on the inferior atrial surface near the coronary sinus (CS). We hypothesized that the importance of BB on IAB might have been overestimated. To test this hypothesis, various combinations of conduction pathway blocks were simulated based on a realistic human atrial model to investigate their effects on the index of clinical diagnosis standard of IAB using a simulated 12-lead electrocardiogram (ECG). Firstly, the results showed that the BB block alone could not generate typical P wave morphology of IAB, and that the combination of BB and VRPV pathway block played important roles in the occurrence of IAB. Secondly, although single FO and CS pathways play subordinate roles in inter atrial conduction, their combination with BB and VRPV block could also produce severe IAB. In summary, this simulation study has demonstrated that the combinations of different inter atrial conduction pathways, rather than BB alone, resulted in ECG morphology of IAB. Attention needs to be paid to this in future pathophysiological and clinical studies of IAB.
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Affiliation(s)
- Yuan Gao
- Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ying-Lan Gong
- Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ling Xia
- Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ding-Chang Zheng
- Health and Wellbeing Academy, Faculty of Medical Science, Anglia Ruskin University, Chelmsford, CM1 1SQ, UK
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Rasmussen MU, Fabricius-Bjerre A, Kumarathurai P, Larsen BS, Domínguez H, Kanters JK, Sajadieh A. Common source of miscalculation and misclassification of P-wave negativity and P-wave terminal force in lead V1. J Electrocardiol 2019; 53:85-88. [DOI: 10.1016/j.jelectrocard.2019.01.088] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/14/2019] [Accepted: 01/23/2019] [Indexed: 01/06/2023]
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Chhabra L. Abnormal P-terminal force and deep terminal negativity in V1 in conditions other than lead misplacement. J Electrocardiol 2019; 63:181-182. [PMID: 30786959 DOI: 10.1016/j.jelectrocard.2019.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/07/2019] [Accepted: 02/12/2019] [Indexed: 11/17/2022]
Affiliation(s)
- Lovely Chhabra
- Heartland Regional Medical Center, Marion, IL 62959, USA; Southern Illinois University, Carbondale, IL, USA.
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Affiliation(s)
- Thomas Lindow
- Department of Clinical Physiology, Växjö Central Hospital, Växjö, Sweden.,Department of Clinical Sciences, Clinical Physiology, Lund University, Lund, Sweden
| | - Adrian Baranchuk
- Division of Cardiology, Queen's University, Kingston, Ontario, Canada
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Wu JT, Fan XW, Yang HT, Yan LJ, Xu XJ, Wang SL, Chu YJ, Long DY, Dong JZ. Association Between CHADS 2 Score and the Development of Interatrial Block. Int Heart J 2018; 59:1261-1265. [PMID: 30369573 DOI: 10.1536/ihj.17-616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Interatrial block (IAB) is associated with a multitude of medical conditions. The aim of this retrospective study was to investigate whether CHADS2 (congestive heart failure, hypertension, age ≥ 75 years, diabetes mellitus, prior stroke) score is positively associated with the development of IAB. A total of 1072 patients (men, 555; women, 517; mean age, 61 ± 14 years) were included in the study. P-wave duration was measured manually using a caliper. IAB was defined as a P-wave duration of ≥ 120 ms on a 12-lead electrocardiogram. CHADS2 scores were calculated retrospectively. Among the 1072 patients, the prevalence of IAB was 36.1% (387/1072). In multivariate analysis, increased CHADS2 score (odds ratio [OR], 1.810; 95% confidence interval [CI], 1.577-2.077; P < 0.001), coronary artery disease (OR, 1.536; 95% CI, 1.065-2.216; P = 0.022), and increased left atrial diameter (OR, 1.039; 95% CI, 1.008-1.071; P = 0.013) were independently associated with IAB. The percentages of patients with IAB among those with a CHADS2 score of 0, 1, 2, 3, 4, 5, and 6 were 20.6%, 33.0%, 45.0%, 55.9%, 61.9%, 77.8%, and 100%, respectively (P < 0.001). There was a greater percentage of patients with a CHADS2 score of ≥ 2 with IAB compared with a CHADS2 score of < 2 (26.5% vsrsus 52.0%; P < 0.001). In receiver operating curve (ROC) analysis, CHADS2 score (area under the curve, 0.670; 95% CI, 0.636-0.704; P < 0.001) was predictive of IAB. In conclusion, CHADS2 score was significantly associated with the development of IAB in this study population.
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Affiliation(s)
- Jin-Tao Wu
- Department of Cardiology, Henan Provincial People's Hospital (Zhengzhou University People's Hospital)
| | - Xian-Wei Fan
- Department of Cardiology, Henan Provincial People's Hospital (Zhengzhou University People's Hospital)
| | - Hai-Tao Yang
- Department of Cardiology, Henan Provincial People's Hospital (Zhengzhou University People's Hospital)
| | - Li-Jie Yan
- Department of Cardiology, Henan Provincial People's Hospital (Zhengzhou University People's Hospital)
| | - Xian-Jing Xu
- Department of Cardiology, Henan Provincial People's Hospital (Zhengzhou University People's Hospital)
| | - Shan-Ling Wang
- Department of Cardiology, Henan Provincial People's Hospital (Zhengzhou University People's Hospital)
| | - Ying-Jie Chu
- Department of Cardiology, Henan Provincial People's Hospital (Zhengzhou University People's Hospital)
| | - De-Yong Long
- Department of Cardiology, Center for Atrial Fibrillation, Beijing Anzhen Hospital, Capital Medical University
| | - Jian-Zeng Dong
- Department of Cardiology, Center for Atrial Fibrillation, Beijing Anzhen Hospital, Capital Medical University
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Ito-Hagiwara K, Iwasaki YK, Hayashi M, Maru Y, Fujimoto Y, Oka E, Takahashi K, Hayashi H, Yamamoto T, Yodogawa K, Miyauchi Y, Shimizu W. Electrocardiographic characteristics in the patients with a persistent left superior vena cava. Heart Vessels 2018; 34:650-657. [DOI: 10.1007/s00380-018-1278-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 10/05/2018] [Indexed: 10/28/2022]
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Intra- and interatrial conduction abnormalities: hemodynamic and arrhythmic significance. J Interv Card Electrophysiol 2018; 52:293-302. [DOI: 10.1007/s10840-018-0413-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 07/11/2018] [Indexed: 10/28/2022]
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García-Izquierdo Jaén E, Cobo Rodríguez P, Solís Solís L, Pham Trung C, Jiménez Sánchez D, Sánchez García M, Castro Urda V, Toquero Ramos J, Fernández Lozano I. [Bayes' syndrome in cardiac surgery: prevalence of interatrial block in patients younger than 65 years undergoing cardiac surgery and association with postoperative atrial fibrillation]. ARCHIVOS DE CARDIOLOGIA DE MEXICO 2017; 88:369-375. [PMID: 29108780 DOI: 10.1016/j.acmx.2017.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 09/01/2017] [Accepted: 09/27/2017] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVE Interatrial block (IAB) is a well-known entity that is associated with an increased risk of atrial fibrillation (AF). This association is called Bayes' syndrome. The aim of our study was to define the prevalence of IAB among patients younger than 65 years undergoing cardiac surgery and determine whether there is an association between the presence of interatrial conduction delay and postoperative atrial fibrillation (POAF). METHOD A total of 207 patients were enrolled. Partial IAB was defined as P-wave>120ms. Advanced IAB was defined as P-wave>120ms+biphasic morphology in the inferior leads. Ocurrence of POAF was assessed and a comparative analysis was conducted between patients that did and did not develop AF. RESULTS IAB prevalence was 78.3% (partial 66.2%, advanced 12.1%). POAF occurred in 28.5% of all patients, and was more frequent among patients with advanced IAB (44%) compared to 27.7% and 24.4% of POAF among patients with partial IAB and without IAB, respectively. Patients who developed POAF were significantly older, had significantly higher NTproBNP, higher prevalence of atrial enlargement and thyroid disease. After multivariate analysis, advanced IAB was found to be independently associated with POAF. CONCLUSIONS IAB is a frequent finding among patients undergoing cardiac surgery. According to our results, advanced IAB is independently associated with POAF in younger patients (<65 years) undergoing cardiac surgery.
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Affiliation(s)
| | - Pablo Cobo Rodríguez
- Unidad de Arritmias, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Luis Solís Solís
- Unidad de Arritmias, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Chinh Pham Trung
- Unidad de Arritmias, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Diego Jiménez Sánchez
- Unidad de Arritmias, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Manuel Sánchez García
- Unidad de Arritmias, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Victor Castro Urda
- Unidad de Arritmias, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Jorge Toquero Ramos
- Unidad de Arritmias, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
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Pirinen J, Eranti A, Knekt P, Lehto M, Martinez-Majander N, Aro AL, Rissanen H, Heliövaara M, Kaste M, Tatlisumak T, Huikuri H, Putaala J. ECG markers associated with ischemic stroke at young age - a case-control study. Ann Med 2017; 49:562-568. [PMID: 28657357 DOI: 10.1080/07853890.2017.1348620] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
INTRODUCTION Certain electrocardiographic (ECG) abnormalities are associated with ischemic stroke (IS), especially cardioembolic subtype. Besides atrial fibrillation, markers of left ventricular hypertrophy (LVH) or atrial pathology also reflect elevated risk. We studied the association of ECG markers with IS in young adults. METHODS We performed a case-control study including 567 consecutive IS patients aged 15-49 years (inclusion period: 1994-2007) and one or two age- and sex-matched control subjects enrolled during 1978-1980 (n = 1033), and investigated also the stroke aetiologic subgroups. We studied ECGs of all participants for markers of atrial abnormality, i.e. P-terminal force (PTF) on lead V1, interatrial blocks (IAB; P-wave duration ≥110 ms), and LVH. Conditional logistic regression analyses were used. RESULTS IAB (hazard ratio [HR]: 1.57, 95% confidence interval [CI]: 1.16-2.13) and PTF combined with LVH (HR: 6.83, 95% CI: 1.65-28.31), were independently associated with IS. LVH, abnormal P-wave (HR: 6.87, 95% CI: 1.97-135.29), PTF, IAB, and combinations of these P-wave abnormalities with LVH - were associated with cardioembolic subtype. Abnormal P-wave and IAB were associated with cryptogenic stroke subtype. In unadjusted analysis, LVH was associated with small-vessel disease subtype. CONCLUSION P-wave abnormalities on ECG were associated with cardioembolic but also with a cryptogenic subtype of IS. Key messages ECG patterns associated with atrial pathology are markers of increased risk of ischemic stroke in young adults. The ECG markers reflecting atrial pathology were seen in patients with cardioembolic and cryptogenic subtypes of ischemic stroke.
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Affiliation(s)
- Jani Pirinen
- a Department of Cardiology , Heart and Lung Center, Helsinki University Hospital, University of Helsinki , Helsinki , Finland.,b Department of Neurology, Clinical Neurosciences , Helsinki University Hospital, University of Helsinki , Helsinki , Finland.,c Department of Clinical Physiology and Nuclear Medicine , HUS Medical Imaging Center, Helsinki University Hospital, University of Helsinki , Helsinki , Finland
| | - Antti Eranti
- d Department of Internal Medicine , Päijät-Häme Central Hospital , Lahti , Finland
| | - Paul Knekt
- e Department of Health, Functional Capacity, and Welfare , National Institute for Health and Welfare (Terveyden ja Hyvinvoinnin Laitos) , Helsinki , Finland
| | - Mika Lehto
- a Department of Cardiology , Heart and Lung Center, Helsinki University Hospital, University of Helsinki , Helsinki , Finland
| | - Nicolas Martinez-Majander
- b Department of Neurology, Clinical Neurosciences , Helsinki University Hospital, University of Helsinki , Helsinki , Finland
| | - Aapo L Aro
- a Department of Cardiology , Heart and Lung Center, Helsinki University Hospital, University of Helsinki , Helsinki , Finland
| | - Harri Rissanen
- e Department of Health, Functional Capacity, and Welfare , National Institute for Health and Welfare (Terveyden ja Hyvinvoinnin Laitos) , Helsinki , Finland
| | - Markku Heliövaara
- e Department of Health, Functional Capacity, and Welfare , National Institute for Health and Welfare (Terveyden ja Hyvinvoinnin Laitos) , Helsinki , Finland
| | - Markku Kaste
- b Department of Neurology, Clinical Neurosciences , Helsinki University Hospital, University of Helsinki , Helsinki , Finland
| | - Turgut Tatlisumak
- b Department of Neurology, Clinical Neurosciences , Helsinki University Hospital, University of Helsinki , Helsinki , Finland.,f Department of Clinical Neurosciences/Neurology , Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Sahlgrenska University Hospital , Gothenburg , Sweden
| | - Heikki Huikuri
- g Medical Research Center Oulu , Oulu University Hospital, University of Oulu , Oulu , Finland
| | - Jukka Putaala
- b Department of Neurology, Clinical Neurosciences , Helsinki University Hospital, University of Helsinki , Helsinki , Finland
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Massó-van Roessel A, Escobar-Robledo LA, Dégano IR, Grau M, Sala J, Ramos R, Marrugat J, Bayés de Luna A, Elosua R. Asociación entre las características de la onda P y la fibrilación auricular en el estudio REGICOR. Rev Esp Cardiol 2017. [DOI: 10.1016/j.recesp.2017.01.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Flannery MD, Kalman JM, Sanders P, La Gerche A. State of the Art Review: Atrial Fibrillation in Athletes. Heart Lung Circ 2017; 26:983-989. [DOI: 10.1016/j.hlc.2017.05.132] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 05/16/2017] [Accepted: 05/19/2017] [Indexed: 01/27/2023]
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Chhabra L, Gowdar S. Interatrial Block to Guide the Thromboembolic Prevention Strategy: Should It be the Next Step? Am J Cardiol 2017; 120:e7. [PMID: 27269990 DOI: 10.1016/j.amjcard.2016.05.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 05/12/2016] [Indexed: 11/16/2022]
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He J, Tse G, Korantzopoulos P, Letsas KP, Ali-Hasan-Al-Saegh S, Kamel H, Li G, Lip GYH, Liu T. P-Wave Indices and Risk of Ischemic Stroke: A Systematic Review and Meta-Analysis. Stroke 2017; 48:2066-2072. [PMID: 28679858 DOI: 10.1161/strokeaha.117.017293] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/26/2017] [Accepted: 05/23/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND PURPOSE Atrial cardiomyopathy is associated with an increased risk of ischemic stroke. P-wave terminal force in lead V1, P-wave duration, and maximum P-wave area are electrocardiographic parameters that have been used to assess left atrial abnormalities related to developing atrial fibrillation. The aim of this systematic review and meta-analysis was to examine their values for predicting ischemic stroke risk. METHODS PubMed and EMBASE databases were searched until December 2016 for studies that evaluated the association between P-wave indices and stroke risk. Both fixed- and random-effects models were used to calculate the overall effect estimates. RESULTS Ten studies examining P-wave terminal force in lead V1, P-wave duration, and maximum P-wave area were included. P-wave terminal force in lead V1 was found to be an independent predictor of stroke as both a continuous variable (odds ratio [OR] per 1 SD change, 1.18; 95% confidence interval [CI], 1.12-1.25; P<0.0001) and categorical variable (OR, 1.59; 95% CI, 1.10-2.28; P=0.01). P-wave duration was a significant predictor of incident ischemic stroke when analyzed as a categorical variable (OR, 1.86; 95% CI, 1.37-2.52; P<0.0001) but not when analyzed as a continuous variable (OR, 1.05; 95% CI, 0.98-1.13; P=0.15). Maximum P-wave area also predicted the risk of incident ischemic stroke (OR per 1 SD change, 1.10; 95% CI, 1.04-1.17). CONCLUSIONS P-wave terminal force in lead V1, P-wave duration, and maximum P-wave area are useful electrocardiographic markers that can be used to stratify the risk of incident ischemic stroke.
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Affiliation(s)
- Jinli He
- From the Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, People's Republic of China (J.H., G.L., T.L.); Department of Medicine and Therapeutics (G.T.) and Li Ka Shing Institute of Health Science (G.T.), Chinese University of Hong Kong, SAR, People's Republic of China; First Department of Cardiology, University Hospital of Ioannina, Greece (P.K.); Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, "Evangelismos" General Hospital of Athens, Greece (K.P.L.); Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (S.A.-H.-A.-S.); Weill Cornell Medical College, New York, NY (H.K.); Institute of Cardiovascular Sciences, University of Birmingham, United Kingdom (G.Y.H.L.); and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark (G.Y.H.L.)
| | - Gary Tse
- From the Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, People's Republic of China (J.H., G.L., T.L.); Department of Medicine and Therapeutics (G.T.) and Li Ka Shing Institute of Health Science (G.T.), Chinese University of Hong Kong, SAR, People's Republic of China; First Department of Cardiology, University Hospital of Ioannina, Greece (P.K.); Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, "Evangelismos" General Hospital of Athens, Greece (K.P.L.); Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (S.A.-H.-A.-S.); Weill Cornell Medical College, New York, NY (H.K.); Institute of Cardiovascular Sciences, University of Birmingham, United Kingdom (G.Y.H.L.); and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark (G.Y.H.L.).
| | - Panagiotis Korantzopoulos
- From the Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, People's Republic of China (J.H., G.L., T.L.); Department of Medicine and Therapeutics (G.T.) and Li Ka Shing Institute of Health Science (G.T.), Chinese University of Hong Kong, SAR, People's Republic of China; First Department of Cardiology, University Hospital of Ioannina, Greece (P.K.); Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, "Evangelismos" General Hospital of Athens, Greece (K.P.L.); Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (S.A.-H.-A.-S.); Weill Cornell Medical College, New York, NY (H.K.); Institute of Cardiovascular Sciences, University of Birmingham, United Kingdom (G.Y.H.L.); and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark (G.Y.H.L.)
| | - Konstantinos P Letsas
- From the Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, People's Republic of China (J.H., G.L., T.L.); Department of Medicine and Therapeutics (G.T.) and Li Ka Shing Institute of Health Science (G.T.), Chinese University of Hong Kong, SAR, People's Republic of China; First Department of Cardiology, University Hospital of Ioannina, Greece (P.K.); Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, "Evangelismos" General Hospital of Athens, Greece (K.P.L.); Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (S.A.-H.-A.-S.); Weill Cornell Medical College, New York, NY (H.K.); Institute of Cardiovascular Sciences, University of Birmingham, United Kingdom (G.Y.H.L.); and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark (G.Y.H.L.)
| | - Sadeq Ali-Hasan-Al-Saegh
- From the Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, People's Republic of China (J.H., G.L., T.L.); Department of Medicine and Therapeutics (G.T.) and Li Ka Shing Institute of Health Science (G.T.), Chinese University of Hong Kong, SAR, People's Republic of China; First Department of Cardiology, University Hospital of Ioannina, Greece (P.K.); Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, "Evangelismos" General Hospital of Athens, Greece (K.P.L.); Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (S.A.-H.-A.-S.); Weill Cornell Medical College, New York, NY (H.K.); Institute of Cardiovascular Sciences, University of Birmingham, United Kingdom (G.Y.H.L.); and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark (G.Y.H.L.)
| | - Hooman Kamel
- From the Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, People's Republic of China (J.H., G.L., T.L.); Department of Medicine and Therapeutics (G.T.) and Li Ka Shing Institute of Health Science (G.T.), Chinese University of Hong Kong, SAR, People's Republic of China; First Department of Cardiology, University Hospital of Ioannina, Greece (P.K.); Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, "Evangelismos" General Hospital of Athens, Greece (K.P.L.); Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (S.A.-H.-A.-S.); Weill Cornell Medical College, New York, NY (H.K.); Institute of Cardiovascular Sciences, University of Birmingham, United Kingdom (G.Y.H.L.); and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark (G.Y.H.L.)
| | - Guangping Li
- From the Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, People's Republic of China (J.H., G.L., T.L.); Department of Medicine and Therapeutics (G.T.) and Li Ka Shing Institute of Health Science (G.T.), Chinese University of Hong Kong, SAR, People's Republic of China; First Department of Cardiology, University Hospital of Ioannina, Greece (P.K.); Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, "Evangelismos" General Hospital of Athens, Greece (K.P.L.); Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (S.A.-H.-A.-S.); Weill Cornell Medical College, New York, NY (H.K.); Institute of Cardiovascular Sciences, University of Birmingham, United Kingdom (G.Y.H.L.); and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark (G.Y.H.L.)
| | - Gregory Y H Lip
- From the Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, People's Republic of China (J.H., G.L., T.L.); Department of Medicine and Therapeutics (G.T.) and Li Ka Shing Institute of Health Science (G.T.), Chinese University of Hong Kong, SAR, People's Republic of China; First Department of Cardiology, University Hospital of Ioannina, Greece (P.K.); Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, "Evangelismos" General Hospital of Athens, Greece (K.P.L.); Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (S.A.-H.-A.-S.); Weill Cornell Medical College, New York, NY (H.K.); Institute of Cardiovascular Sciences, University of Birmingham, United Kingdom (G.Y.H.L.); and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark (G.Y.H.L.)
| | - Tong Liu
- From the Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, People's Republic of China (J.H., G.L., T.L.); Department of Medicine and Therapeutics (G.T.) and Li Ka Shing Institute of Health Science (G.T.), Chinese University of Hong Kong, SAR, People's Republic of China; First Department of Cardiology, University Hospital of Ioannina, Greece (P.K.); Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, "Evangelismos" General Hospital of Athens, Greece (K.P.L.); Cardiovascular Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran (S.A.-H.-A.-S.); Weill Cornell Medical College, New York, NY (H.K.); Institute of Cardiovascular Sciences, University of Birmingham, United Kingdom (G.Y.H.L.); and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Denmark (G.Y.H.L.)
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Massó-van Roessel A, Escobar-Robledo LA, Dégano IR, Grau M, Sala J, Ramos R, Marrugat J, Bayés de Luna A, Elosua R. Analysis of the Association Between Electrocardiographic P-wave Characteristics and Atrial Fibrillation in the REGICOR Study. ACTA ACUST UNITED AC 2017; 70:841-847. [PMID: 28330820 DOI: 10.1016/j.rec.2017.02.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 01/19/2017] [Indexed: 01/18/2023]
Abstract
INTRODUCTION AND OBJECTIVES Atrial fibrillation (AF) is the most common clinically significant cardiac arrhythmia. P-wave duration and interatrial blocks (IAB) have been reported to be associated with AF. Our aim was to determine the individual and combined association of P-wave duration and advanced IAB morphology with AF. METHODS We designed an age-, sex-, and survey-matched case-control study nested in a population-based cohort (REGICOR: REgistre GIroní del COR). Two different surveys recruited a total of 9380 participants from 1999 to 2005; all participants were invited to a second examination between 2009 and 2013. For the present study, we selected participants aged 25 to 79 years with follow-up through the end of the study. All electrocardiograms were analyzed by 2 observers to determine P-wave duration and morphology (normal, partial, or advanced IAB). RESULTS The median follow-up was 7.12 years. Eighty participants presented with AF, had a legible baseline electrocardiogram, and were included in the study, along with 160 controls. P-wave duration and the presence of partial or advanced IAB were associated with AF. When P-wave duration and morphology were considered together, only P-wave duration (≥ 110 milliseconds) showed an independent and strong association with AF. The odds ratio for AF of P-wave duration between 110-119, 120-129 and ≥ 130 milliseconds vs < 110 milliseconds were 5.33; 95%CI, 1.74-16.33, 5.08; 95%CI, 1.73-14.90 and 5.44; 95%CI, 1.95-15.15, respectively. CONCLUSIONS A P-wave longer than 110 milliseconds increases the risk of AF. Advanced IAB morphology did not seem to provide an additional AF risk beyond that of P-wave duration.
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Affiliation(s)
| | | | - Irene R Dégano
- Grupo de Epidemiología y Genética Cardiovascular, Grupo del Estudio REGICOR, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), Barcelona, Spain; CIBER de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Barcelona, Spain
| | - María Grau
- Grupo de Epidemiología y Genética Cardiovascular, Grupo del Estudio REGICOR, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), Barcelona, Spain; CIBER de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Barcelona, Spain
| | - Joan Sala
- Servicio de Cardiología, Hospital Josep Trueta, Girona, Spain
| | - Rafel Ramos
- Instituto de Investigación en Atención Primaria Jordi Gol (IDIAP Jordi Gol), Grupo de Investigación en Salud Vascular (ISV), Unidad de Investigación en Atención Primaria, Instituto Catalán de Salud (ICS), Instituto de Investigación Biomédica de Girona (IdIBGi), Grupo de Investigación TransLab, Departamento de Medicina, Facultad de Medicina, Universidad de Girona, Girona, Spain
| | - Jaume Marrugat
- Grupo de Epidemiología y Genética Cardiovascular, Grupo del Estudio REGICOR, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), Barcelona, Spain; CIBER de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Barcelona, Spain
| | | | - Roberto Elosua
- Grupo de Epidemiología y Genética Cardiovascular, Grupo del Estudio REGICOR, Instituto Hospital del Mar de Investigaciones Médicas (IMIM), Barcelona, Spain; CIBER de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Barcelona, Spain.
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Arboix A, Martí L, Dorison S, Sánchez MJ. Bayés syndrome and acute cardioembolic ischemic stroke. World J Clin Cases 2017; 5:93-101. [PMID: 28352633 PMCID: PMC5352964 DOI: 10.12998/wjcc.v5.i3.93] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/10/2016] [Accepted: 12/09/2016] [Indexed: 02/05/2023] Open
Abstract
Bayés syndrome is an under-recognized clinical condition characterized by advanced interatrial block. Bayés syndrome is a subclinical disease that manifests electrocardiographically as a prolonged P wave duration > 120 ms with biphasic morphology ± in the inferior leads. The clinical relevance of Bayés syndrome lies in the fact that is a clear arrhythmological syndrome and has a strong association with supraventricular arrhythmias, particularly atypical atrial flutter and atrial fibrillation. Likewise, Bayés syndrome has been recently identified as a novel risk factor for non-lacunar cardioembolic ischemic stroke and vascular dementia. Advanced interatrial block can be a risk for embolic stroke due to its known sequelae of left atrial dilation, left atrial electromechanical dysfunction or atrial tachyarrhythmia (paroxysmal or persistent atrial fibrillation), conditions predisposing to thromboembolism. Bayés syndrome may be responsible for some of the unexplained ischemic strokes and shall be considered and investigated as a possible cause for cryptogenetic stroke. In summary, Bayés syndrome is a poorly recognized cardiac rhythm disorder with important cardiologic and neurologic implications.
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Wu JT, Long DY, Wang SL. Interatrial Block and Risk of Ischemic Stroke – Reply –. J Atheroscler Thromb 2017; 24:187-188. [PMID: 27629529 PMCID: PMC5305680 DOI: 10.5551/jat.37572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Affiliation(s)
- Jin-Tao Wu
- 1Department of Cardiology, Henan Provincial People’s Hospital (Zhengzhou University People’s Hospital)
| | - De-Yong Long
- Department of Cardiology, Center for Atrial Fibrillation, Beijing Anzhen Hospital, Capital Medical University
| | - Shan-Ling Wang
- 1Department of Cardiology, Henan Provincial People’s Hospital (Zhengzhou University People’s Hospital)
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Hernandez-Betancor I, Izquierdo-Gómez MM, García-Niebla J, Laynez-Cerdeña I, García-González MJ, Irribarren-Sarriá JL, Jimenez-Rivera JJ, Lacalzada-Almeida J. Bayes Syndrome and Imaging Techniques. Curr Cardiol Rev 2017; 13:263-273. [PMID: 28707575 PMCID: PMC5730959 DOI: 10.2174/1573403x13666170713122600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/23/2017] [Accepted: 07/03/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Interatrial block (IAB) is due to disruption in the Bachmann region (BR). According to whether interatrial electrical conduction is delayed or completely blocked through the BR, it can be classified as IAB of first, second or third degree. On the surface electrocardiogram, a P wave ≥ 120 ms (partial IAB) is observed or associated to the prolongation of the P wave with a biphasic (positive / negative) morphology in the inferior leads (advanced IAB). Bayes syndrome is defined as an advanced IAB associated with atrial arrhythmia, more specifically atrial fibrillation. Objective and Conclusion: The purpose of this review is to describe the latest evidence about an entity considered an anatomical and electrical substrate with its own name, which may be a predictor of supraventricular arrhythmia and cardioembolic cerebrovascular accidents, as well as the role of new imaging techniques, such as echocardiographic strain and cardiac magnetic resonance imaging, in characterizing atrial alterations associated with this syndrome and generally in the study of anatomy and atrial function.
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Affiliation(s)
- Iván Hernandez-Betancor
- Departamento de Cardiología, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Tenerife, España
| | | | - Javier García-Niebla
- Centro de Salud Valle del Golfo, Servicios Sanitarios del Área de Salud de El Hierro, Frontera-El Hierro, Santa Cruz de Tenerife, Tenerife, España
| | - Ignacio Laynez-Cerdeña
- Departamento de Cardiología, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Tenerife, España
| | | | - Barragan-Acea
- Departamento de Cardiología, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Tenerife, España
- Centro de Salud Valle del Golfo, Servicios Sanitarios del Área de Salud de El Hierro, Frontera-El Hierro, Santa Cruz de Tenerife, Tenerife, España
- Departamento de Unidad de Cuidados Intensivos, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Tenerife, España
| | - A.
- Departamento de Cardiología, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Tenerife, España
| | - Jose Luis Irribarren-Sarriá
- Departamento de Unidad de Cuidados Intensivos, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Tenerife, España
| | - Juan José Jimenez-Rivera
- Departamento de Unidad de Cuidados Intensivos, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Tenerife, España
| | - Juan Lacalzada-Almeida
- Departamento de Cardiología, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Tenerife, España
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Wu JT, Wang SL, Chu YJ, Long DY, Dong JZ, Fan XW, Yang HT, Duan HY, Yan LJ, Qian P. CHADS 2 and CHA 2DS 2-VASc Scores Predict the Risk of Ischemic Stroke Outcome in Patients with Interatrial Block without Atrial Fibrillation. J Atheroscler Thromb 2016; 24:176-184. [PMID: 27301462 PMCID: PMC5305678 DOI: 10.5551/jat.34900] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Aim: To evaluate the role of CHADS2 and CHA2DS2-VASc scores in predicting the risk of ischemic stroke or transient ischemic attack (TIA) outcomes in patients with interatrial block (IAB) without a history of atrial fibrillation (AF). Methods: A retrospective study was conducted, including 1,046 non-anticoagulated inpatients (612 males, 434 females; mean age: 63 ± 10 years) with IAB and without AF. IAB was defined as P-wave duration > 120 ms using a 12-lead electrocardiogram. CHADS2 and CHA2DS2-VASc scores were retrospectively calculated. The primary outcomes evaluated were ischemic stroke or TIA. Results: During the mean follow-up period of 4.9 ± 0.7 years, 55 (5.3%) patients had an ischemic stroke or TIA. Receiver operating characteristic (ROC) curve analysis showed that the CHADS2 score [area under the curve (AUC), 0.638; 95% confidence interval (CI), 0.562–0.715; P = 0.001] and the CHA2DS2-VASc score (AUC, 0.671; 95% CI, 0.599–0.744; P <0.001) were predictive of ischemic strokes or TIA. Cut-off point analysis showed that a CHADS2 score ≥ 3 (sensitivity = 0.455 and specificity = 0.747) and a CHA2DS2-VASc score ≥ 4 (sensitivity = 0.564 and specificity = 0.700) provided the highest predictive value for ischemic stroke or TIA. The multivariate Cox regression analysis showed that CHADS2 [hazard ratio (HR), 1.442; 95% CI, 1.171–1.774; P = 0.001] and CHA2DS2-VASc (HR, 1.420; 95% CI, 1.203–1.677; P <0.001) scores were independently associated with ischemic stroke or TIA following adjustment for smoking, left atrial diameter, antiplatelet agents, angiotensin inhibitors, and statins. Conclusions: CHADS2 and CHA2DS2-VASc scores may be predictors of risk of ischemic stroke or TIA in patients with IAB without AF.
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Affiliation(s)
- Jin-Tao Wu
- Department of Cardiology, Henan Provincial People's Hospital (Zhengzhou University People's Hospital)
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