Abstract
Introduction: Coronary artery ectasia (CAE) refers to a 1.5 fold increase in coronary artery diameter compared to the normal segment. Although the underlying pathophysiological mechanism is not fully elucidated, coronary atherosclerosis is thought to play a role in more than half of the cases. Triglyceride glucose (TyG) index is an indicator of insulin resistance. In the present study, aimed to evaluated TyG index values in CAE cases and find if a predictive value of TyG index existed.
Patients and Methods: Sixty-one patients with CAE (study group) and 64 patients with normal coronary arteries (control group) were included in the study. TyG index was calculated as ln (fasting triglyceride × fasting glucose/2).
Results: There were no differences between the two groups with respect to age, sex, diabetes mellitus prevalence, and biochemical parameters including, white blood cell, platelet, lymphocyte, monocyte counts, hemoglobin, hematocrit, urea, glucose, total cholesterol, high density lipoprotein-cholesterol, triglyceride levels and TyG index value. Twenty-five patients (41.0%) had one-vessel involvement, 24 (39.3%) patients had twovessel involvement and 12 (19.7%) patients had three-vessel involvement. Right coronary artery was the most commonly affected vessel (11, 44%), followed by left anterior descending artery (8, 35%), left main coronary artery (4, 16%) and circumflex artery (1, 4%). TyG index was statistically significantly higher in patients who had two/three vessel involvement (8.80 ± 0.48 vs 9.14 ± 0.62, p= 0.027). TyG index had statistically significant correlation with the number of ectatic vessels (r= 0.275, p= 0.032). ROC curve analysis showed that TyG index was useful for the prediction of ectasia severity (AUC= 0.653, 95% CI= 0.515-0.792, p= 0.043). TyG index value of 9.16 had 41.7% sensitivity and 84% specificity for prediction of CAE severity.
Conclusion: TyG index, which is easily calculated from biochemical parameters, might be used for the assessment of CAE severity.
Keywords
References
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Details
| Primary Language | English |
|---|---|
| Subjects | Clinical Sciences |
| Journal Section | Original Investigations |
| Authors | |
| Publication Date | March 21, 2023 |
| Published in Issue | Year 2023 Volume: 26 Issue: 1 |
