Frontal plane QRS-T angle may be a predictor for post-coronary artery bypass graft surgery atrial fibrillation
SUMMARY BACKGROUND: New-onset postoperative atrial fibrillation (POAF) is the most common arrhythmia following coronary artery bypass graft surgery (CABG) and is associated with prolonged hospitalization, stroke, and mortality. The frontal plane QRS-T [f(QRS-T)] angle, which is defined as the angle between the directions of ventricular depolarization (QRS-axis) and repolarization (T-axis), is a novel marker of ventricular repolarization heterogeneity. The f(QRS-T) angle is associated with adverse cardiac outcomes. In light of these findings, in this study, we aimed to investigate the potential relationship between the f(QRS-T) angle and POAF. METHODS: 180 patients who underwent CABG between August 2017 and September 2018 were included in the study retrospectively. Two groups were established as patients who preserved postoperative sinus rhythm (n=130) and those who developed POAF (n=50). The f(QRS-T) angle and all other data were compared between groups. RESULTS: The fF(QRS-T) angle (p<0.001), SYNTAX score (p=0.039), serum high-sensitivity CRP levels (p=0.026), mean age (p<0.001), electrocardiographic left ventricular hypertrophy rate (LVH) (p=0.019), and hypertension rate (p=0.007) were higher, and the mean left ventricular ejection fraction (LVEF) (p<0.001) was lower in the POAF group. Multivariable logistic regression analyses demonstrated that lower LVEF (p=0.004), LVH (p=0.041), and higher age (p=0.008) and f(QRS-T) angle (p<0.001) were independently associated with POAF. CONCLUSIONS: High f(QRS-T) angle level is closely associated with the development of POAF. The f(QRS-T) angle can be a potential indicator of POAF.
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Associação Médica Brasileira
2020
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oai:scielo:S0104-423020200012016732020-12-14Frontal plane QRS-T angle may be a predictor for post-coronary artery bypass graft surgery atrial fibrillationKuyumcu,Mevlüt SerdarUysal,DinçerÖzbay,Mustafa BilalAydın,Oğuzİbrişim,Erdoğan Atrial fibrillation Coronary artery bypass Myocardial revascularization Postoperative complications Electrocardiography SUMMARY BACKGROUND: New-onset postoperative atrial fibrillation (POAF) is the most common arrhythmia following coronary artery bypass graft surgery (CABG) and is associated with prolonged hospitalization, stroke, and mortality. The frontal plane QRS-T [f(QRS-T)] angle, which is defined as the angle between the directions of ventricular depolarization (QRS-axis) and repolarization (T-axis), is a novel marker of ventricular repolarization heterogeneity. The f(QRS-T) angle is associated with adverse cardiac outcomes. In light of these findings, in this study, we aimed to investigate the potential relationship between the f(QRS-T) angle and POAF. METHODS: 180 patients who underwent CABG between August 2017 and September 2018 were included in the study retrospectively. Two groups were established as patients who preserved postoperative sinus rhythm (n=130) and those who developed POAF (n=50). The f(QRS-T) angle and all other data were compared between groups. RESULTS: The fF(QRS-T) angle (p<0.001), SYNTAX score (p=0.039), serum high-sensitivity CRP levels (p=0.026), mean age (p<0.001), electrocardiographic left ventricular hypertrophy rate (LVH) (p=0.019), and hypertension rate (p=0.007) were higher, and the mean left ventricular ejection fraction (LVEF) (p<0.001) was lower in the POAF group. Multivariable logistic regression analyses demonstrated that lower LVEF (p=0.004), LVH (p=0.041), and higher age (p=0.008) and f(QRS-T) angle (p<0.001) were independently associated with POAF. CONCLUSIONS: High f(QRS-T) angle level is closely associated with the development of POAF. The f(QRS-T) angle can be a potential indicator of POAF.info:eu-repo/semantics/openAccessAssociação Médica BrasileiraRevista da Associação Médica Brasileira v.66 n.12 20202020-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302020001201673en10.1590/1806-9282.66.12.1673 |
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Kuyumcu,Mevlüt Serdar Uysal,Dinçer Özbay,Mustafa Bilal Aydın,Oğuz İbrişim,Erdoğan |
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Kuyumcu,Mevlüt Serdar Uysal,Dinçer Özbay,Mustafa Bilal Aydın,Oğuz İbrişim,Erdoğan Frontal plane QRS-T angle may be a predictor for post-coronary artery bypass graft surgery atrial fibrillation |
author_facet |
Kuyumcu,Mevlüt Serdar Uysal,Dinçer Özbay,Mustafa Bilal Aydın,Oğuz İbrişim,Erdoğan |
author_sort |
Kuyumcu,Mevlüt Serdar |
title |
Frontal plane QRS-T angle may be a predictor for post-coronary artery bypass graft surgery atrial fibrillation |
title_short |
Frontal plane QRS-T angle may be a predictor for post-coronary artery bypass graft surgery atrial fibrillation |
title_full |
Frontal plane QRS-T angle may be a predictor for post-coronary artery bypass graft surgery atrial fibrillation |
title_fullStr |
Frontal plane QRS-T angle may be a predictor for post-coronary artery bypass graft surgery atrial fibrillation |
title_full_unstemmed |
Frontal plane QRS-T angle may be a predictor for post-coronary artery bypass graft surgery atrial fibrillation |
title_sort |
frontal plane qrs-t angle may be a predictor for post-coronary artery bypass graft surgery atrial fibrillation |
description |
SUMMARY BACKGROUND: New-onset postoperative atrial fibrillation (POAF) is the most common arrhythmia following coronary artery bypass graft surgery (CABG) and is associated with prolonged hospitalization, stroke, and mortality. The frontal plane QRS-T [f(QRS-T)] angle, which is defined as the angle between the directions of ventricular depolarization (QRS-axis) and repolarization (T-axis), is a novel marker of ventricular repolarization heterogeneity. The f(QRS-T) angle is associated with adverse cardiac outcomes. In light of these findings, in this study, we aimed to investigate the potential relationship between the f(QRS-T) angle and POAF. METHODS: 180 patients who underwent CABG between August 2017 and September 2018 were included in the study retrospectively. Two groups were established as patients who preserved postoperative sinus rhythm (n=130) and those who developed POAF (n=50). The f(QRS-T) angle and all other data were compared between groups. RESULTS: The fF(QRS-T) angle (p<0.001), SYNTAX score (p=0.039), serum high-sensitivity CRP levels (p=0.026), mean age (p<0.001), electrocardiographic left ventricular hypertrophy rate (LVH) (p=0.019), and hypertension rate (p=0.007) were higher, and the mean left ventricular ejection fraction (LVEF) (p<0.001) was lower in the POAF group. Multivariable logistic regression analyses demonstrated that lower LVEF (p=0.004), LVH (p=0.041), and higher age (p=0.008) and f(QRS-T) angle (p<0.001) were independently associated with POAF. CONCLUSIONS: High f(QRS-T) angle level is closely associated with the development of POAF. The f(QRS-T) angle can be a potential indicator of POAF. |
publisher |
Associação Médica Brasileira |
publishDate |
2020 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302020001201673 |
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