ArticleInternational journal of cardiology. Cardiovascular risk and prevention2025
Electrocardiographic markers of arrhythmogenic risk in patients with isolated coronary artery ectasia.
Article in International journal of cardiology. Cardiovascular risk and prevention, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Overt hyperthyroidism is associated with increased dispersion of ventricular repolarization: a case-control study.Frontiers in endocrinology · 2026Article
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4 authors.
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Abstract
Background: Coronary artery ectasia (CAE) is an uncommon finding with potential clinical implications, including arrhythmogenic risk. Electrocardiographic parameters such as QT dispersion (QTd) and P wave dispersion (PWD) have been proposed as non-invasive predictors of electrical instability. This study aimed to compare ECG findings, between patients with isolated CAE and those with normal coronary arteries. Methods: In this case-control study, 23 patients with isolated CAE (Group 1) and 26 patients with angiographically normal coronary arteries (Group 2) were enrolled. Groups were matched for age, gender, cardiovascular risk factors, and ejection fraction. Patients with conditions or medications affecting conduction were excluded. ECG parameters were compared using Chi-square and unpaired t-tests. Additional subgroup analyses using ANOVA, Spearman correlation, and linear mixed models were performed. Results: T wave inversion was significantly more common in Group 1 than Group 2 (52.2 % vs. 11.5 %, Conclusions: Patients with isolated CAE exhibit greater QT dispersion and P wave dispersion compared to controls, suggesting a higher arrhythmogenic potential. These parameters also correlate with the extent and classification of ectasia, highlighting their potential utility in risk stratification.
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