S-EPMC8255815 - Total coronary atherosclerotic plaque burden is associated with myocardial ischemia in non-obstructive coronary artery disease. - OmicsDI

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Dataset Information

Total coronary atherosclerotic plaque burden is associated with myocardial ischemia in non-obstructive coronary artery disease.

ABSTRACT:

Aim

Whether the total coronary atherosclerotic plaque burden is independently associated with myocardial ischemia in non-obstructive coronary artery disease (CAD) is not well established. We aimed to test the association of total plaque burden quantified by coronary computed tomography angiography (CCTA) with myocardial ischemia in patients with chronic coronary syndrome and non-obstructive CAD.

Methods

We included 125 patients (age 62 ± 9 years, 58% women) with chronic coronary syndrome and non-obstructive CAD (stenosis < 50%) by CCTA, who were grouped according to presence or absence of myocardial ischemia by myocardial contrast stress echocardiography. Total plaque burden was quantified by CCTA as the total plaque volume in the main coronary arteries, and positive remodelling was defined as remodelling index > 1.10.

Results

Patients with myocardial ischemia (n = 66) had higher total plaque burden (847 ± 245 mm³ vs. 758 ± 251 mm³, p = 0.049) and higher left ventricular (LV) mass index (42.1 ± 9.9 g/m^2.7 vs. 37.3 ± 8.0 g/m^2.7, p = 0.004), while age, sex, prevalence of hypertension, diabetes, calcium score and positive remodelling did not differ between the groups (all p > 0.05). In multivariable regression analysis, total plaque burden remained associated with presence of myocardial ischemia (OR 1.02, 95% CI 1.00-1.04, p = 0.045) independent of age, sex, hypertension, diabetes, LV mass index, coronary calcium score and positive remodelling.

Conclusion

Total coronary artery plaque burden by CCTA was independently associated with myocardial ischemia in patients with non-obstructive CAD. Whether plaque quantification is useful for clinical management of patients with non-obstructive CAD should be tested in prospective studies.ClinicalTrials.gov: Identifier NCT01853527.

SUBMITTER: Eskerud I

PROVIDER: S-EPMC8255815 | biostudies-literature |

REPOSITORIES: biostudies-literature

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