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Published: 2026-08-04
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DOI: https://doi.org/10.52852/tcncyh.v204i7.5516
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Vol. 204 No. 7 (2026)
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Anh, N. P., Anh, N. V., & Hùng, P. M. (2026). Characteristics and Early Evolution of Non-Culprit Coronary Lesions on Intravascular Ultrasound in STEMI Patients. Journal of Medical Research, 204(7), 607-618. https://doi.org/10.52852/tcncyh.v204i7.5516

Characteristics and Early Evolution of Non-Culprit Coronary Lesions on Intravascular Ultrasound in STEMI Patients

Nguyen Phuong Anh, Nguyen Van Anh, Pham Manh Hung

Main Article Content

Abstract

This study aimed to evaluate the morphological characteristics and early evolution of non-culprit coronary lesions using intravascular ultrasound (IVUS) in patients with ST-segment elevation myocardial infarction (STEMI). A prospective study was conducted in 103 STEMI patients, including 118 non-culprit coronary lesions assessed by IVUS at baseline; among these, 32 lesions underwent repeat IVUS evaluation. Mixed plaques were the most common plaque phenotype (41.5%). High-risk plaque features included a minimum lumen area (MLA) <4 mm2 (68.6%), plaque burden ≥ 70% (52.5%), and spotty calcification (52.5%). Lesions presenting with two or more high-risk features accounted for 66.9%. In lesions with repeat IVUS assessment, 65.6% continued to exhibit at least two high-risk features. Thus, in patients with multivessel STEMI, non-culprit coronary lesions assessed by IVUS frequently exhibited multiple high-risk plaque features. Among lesions undergoing repeat IVUS after a short follow-up period, most of these features remained present.

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Keywords

Non-culprit coronary lesions, IVUS, STEMI, high-risk plaque features

References

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