Key result
Coronary artery ectasia was associated with a significantly wider frontal QRS-T angle compared to controls (68 vs 33 degrees, p < 0.001), indicating increased heterogeneity of myocardial repolarization.
Why the study?
Coronary artery ectasia can lead to ischemia and ventricular heterogeneity, prompting evaluation of the frontal QRS-T angle in these patients.
Is the frontal QRS-T angle altered in patients with coronary artery ectasia compared to controls?
Case-Control (n=105)
Single-blind
No
Is the frontal QRS-T angle altered in patients with coronary artery ectasia compared to controls?
This study evaluates the frontal QRS-T angle as a potential marker of ventricular heterogeneity in patients with coronary artery ectasia.
May flag arrhythmia vulnerability in coronary artery ectasia; hypothesis-generating and requires prospective validation before clinical adoption.
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Karahan et al. (2023) conducted a case-control in Coronary Artery Ectasia (n=105). Coronary Artery Ectasia vs. Individuals without coronary artery ectasia was evaluated on Frontal QRS-T angle (p=<0.001). Coronary artery ectasia was associated with a significantly wider frontal QRS-T angle compared to controls (68 vs 33 degrees, p < 0.001), indicating increased heterogeneity of myocardial repolarization.
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