Optical coherence tomography detection of vulnerable plaques at high risk of developing acute coronary syndrome

Abstract Aims The ability of optical coherence tomography (OCT) to detect plaques at high risk of developing acute coronary syndrome (ACS) remains unclear. The aim of this study was to evaluate the association between non-culprit plaques characterized as both lipid-rich plaque (LRP) and thin-cap fib...

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Published in:European heart journal cardiovascular imaging 2021-02, Vol.22 (12), p.1376-1384
Main Authors: Kubo, Takashi, Ino, Yasushi, Mintz, Gary S, Shiono, Yasutsugu, Shimamura, Kunihiro, Takahata, Masahiro, Terada, Kosei, Higashioka, Daisuke, Emori, Hiroki, Wada, Teruaki, Kashiwagi, Manabu, Tanimoto, Takashi, Tanaka, Atsushi, Hozumi, Takeshi, Akasaka, Takashi
Format: Article
Language:English
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Summary:Abstract Aims The ability of optical coherence tomography (OCT) to detect plaques at high risk of developing acute coronary syndrome (ACS) remains unclear. The aim of this study was to evaluate the association between non-culprit plaques characterized as both lipid-rich plaque (LRP) and thin-cap fibroatheroma (TCFA) by OCT and the risk of subsequent ACS events at the lesion level. Methods and results In 1378 patients who underwent OCT, 3533 non-culprit plaques were analysed for the presence of LRP (maximum lipid arc > 180°) and TCFA (minimum fibrous cap thickness < 65 μm). The median follow-up period was 6 years [interquartile range (IQR): 5–9 years]. Seventy-two ACS arose from non-culprit plaques imaged by baseline OCT. ACS was more often associated with lipidic plaques that were characterized as both LRP and TCFA vs. lipidic plaques that did not have these characteristics [33% vs. 2%, hazard ratio 19.14 (95% confidence interval: 11.74–31.20), P 
ISSN:2047-2404
2047-2412
DOI:10.1093/ehjci/jeab028