European heart journal · 2026
Silent plaque ruptures in non-obstructive lesions of non-infarct-related arteries: a multimodality, serial intracoronary imaging study.
СтатьяМногоцентровое исследованиеНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Kakizaki Ryota, Biccirè Flavio G, Losdat Sylvain, Ueki Yasushi, Häner Jonas D, Shibutani Hiroki, Otsuka Tatsuhiko, Bär Sarah, Lønborg Jacob, Spitzer Ernest, Siontis George C M, Ondracek Anna S, van Geuns Robert-Jan, Wang Yu-Jen, Matter Christian M, Iglesias Juan F, Spirk David, Daemen Joost, Fahrni Gregor, Mahfoud Felix, Engstrøm Thomas, Lang Irene M, Koskinas Konstantinos C, Räber Lorenz
Аннотация
BACKGROUND AND AIMS: Plaque rupture can occur at non-obstructive lesions in non-infarct-related coronary arteries (non-IRAs) without inducing ischaemia. This study aimed to: (1) assess the frequency and lesion characteristics of plaque rupture in non-IRAs of acute myocardial infarction (AMI) patients, (2) evaluate morphological changes in rupture sites over 52 weeks, and (3) investigate the baseline morphology of new-onset ruptures.
METHODS: This study analysed pooled data from the IBIS-4 and PACMAN-AMI trials. Patients presenting with AMI underwent multimodality intracoronary imaging of non-IRAs at baseline and after 52 weeks.
RESULTS: Among 783 lesions from 336 patients evaluated at baseline, plaque rupture was observed in 41 lesions of 40 patients (12%). Biomarkers including lipid and inflammation markers were comparable between patients with and without rupture in non-IRAs. Lesions with rupture showed larger percent atheroma volume (53.3 ± 6.4 vs. 49.5 ± 5.8%, estimated difference 3.6[1.9 to 5.4]), larger external elastic membrane area (20.5 ± 4.8 vs. 15.7 ± 5.6 mm2, 4.1[2.5 to 5.7]), and smaller minimum fibrous cap thickness (69 ± 49 vs. 116 ± 84 μm, -43[-75 to -11]) compared to those without. Among 41 rupture sites assessed serially, 21 (51%) healed by 52 weeks. At follow-up, 10 rupture sites were newly identified, and thin-cap fibroatheroma was the most frequent baseline morphology of those.
CONCLUSIONS: Plaque rupture in non-obstructive lesions of non-IRAs was present in 12% of AMI patients. Larger plaque volume, positive remodeling, and thinner fibrous cap were associated with rupture. More than half of untreated ruptures transitioned into stable morphologies. Thin-cap fibroatheroma was the most frequent underlying morphology of new-onset rupture.
METHODS: This study analysed pooled data from the IBIS-4 and PACMAN-AMI trials. Patients presenting with AMI underwent multimodality intracoronary imaging of non-IRAs at baseline and after 52 weeks.
RESULTS: Among 783 lesions from 336 patients evaluated at baseline, plaque rupture was observed in 41 lesions of 40 patients (12%). Biomarkers including lipid and inflammation markers were comparable between patients with and without rupture in non-IRAs. Lesions with rupture showed larger percent atheroma volume (53.3 ± 6.4 vs. 49.5 ± 5.8%, estimated difference 3.6[1.9 to 5.4]), larger external elastic membrane area (20.5 ± 4.8 vs. 15.7 ± 5.6 mm2, 4.1[2.5 to 5.7]), and smaller minimum fibrous cap thickness (69 ± 49 vs. 116 ± 84 μm, -43[-75 to -11]) compared to those without. Among 41 rupture sites assessed serially, 21 (51%) healed by 52 weeks. At follow-up, 10 rupture sites were newly identified, and thin-cap fibroatheroma was the most frequent baseline morphology of those.
CONCLUSIONS: Plaque rupture in non-obstructive lesions of non-IRAs was present in 12% of AMI patients. Larger plaque volume, positive remodeling, and thinner fibrous cap were associated with rupture. More than half of untreated ruptures transitioned into stable morphologies. Thin-cap fibroatheroma was the most frequent underlying morphology of new-onset rupture.