ArticleAnatolian journal of cardiology2019
Frontal QRS-T angle is related with hemodynamic significance of coronary artery stenosis in patients with single vessel disease.
Article in Anatolian journal of cardiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Predictive value of frontal QRS-T angle for no-reflow phenomenon in patients with acute coronary syndrome.BMC cardiovascular disorders · 2026Article
- The Relationship Between Collateral Circulation and Electrocardiographic Frontal QRS-T Angle in Patients with Coronary Artery Chronic Total Occlusion.Journal of clinical medicine · 2025Article
- The Synergistic Relationship Between Erectile Dysfunction and Frontal QRS-T Angle in Predicting Coronary Artery Disease Severity: A Prospective Observational Study.Anatolian journal of cardiology · 2025Observational
- A Novel Electrocardiographic Index to Predict the Severity of Coronary Calcification.Anatolian journal of cardiology · 2025Article
- Relationship between frontal QRS-T duration and the severity of coronary artery disease in who were non-diabetic and had stable angina pectoris.Anatolian journal of cardiology · 2021Article
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7 authors.
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Abstract
objectiveFractional flow reserve (FFR) measurement is used to decide the hemodynamic significance of coronary artery lesion. QRS-T angle (QRSTa) is a novel marker of myocardial repolarization abnormality and is affected by obstructive coronary artery disease. The aim of the present study was to evaluate the association between QRSTa and coronary FFR measurement in patients with isolated left anterior descending (LAD) artery stenosis.
methodsA total of 197 patients undergoing FFR measurement for isolated LAD artery stenosis were retrospectively enrolled in the present study. According to FFR value, patients were divided into two groups as 139 patients with normal FFR (>0.80, group 1) and 58 patients with low FFR (≤0.80, group 2). A 12-lead surface electrocardiography of all subjects that had been recorded before performing coronary angiography was evaluated to measure QRSTa, as well as baseline demographic and clinical variables.
resultsThe mean age of group 2 was significantly higher than that of group 1 (61±11 and 64±11, p=0.044). While there were no differences in heart rate, QRS duration, and corrected QT interval between the two groups, QT interval [377 (359-397) and 379 (367-410), p=0.045] and frontal QRSTa [59 (10-120) and 86 (22-132), p<0.001] were higher in group 2. QT interval [odds ratio (OR)=1.046, 95% confidence interval (CI)=1.010-1.084, p=0.012] and frontal QRSTa (OR=1.025, 95% CI=1.010-1.041, p=0.001) were found to be independent predictors of low FFR value in multivariate logistic regression analysis.
conclusionIn the present study, FFR measurement was demonstrated to be correlated with wide QRSTa as a noninvasive and easy method. Thus, we suggest that the results of FFR measurement as an invasive modality can be previously predicted with a simple electrocardiographic evaluation, such as QRSTa.
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