Changes in Coronary Plaque Composition in Patients With Acute Myocardial Infarction Treated With High-Intensity Statin Therapy (IBIS-4): A Serial Optical Coherence Tomography Study.

Räber, Lorenz; Koskinas, Konstantinos C; Yamaji, Kyohei; Taniwaki, Masanori; Roffi, Marco; Holmvang, Lene; Garcia Garcia, Hector M; Zanchin, Thomas; Maldonado, Rafaela; Moschovitis, Aris; Pedrazzini, Giovanni; Zaugg, Serge; Dijkstra, Jouke; Matter, Christian M; Serruys, Patrick W; Lüscher, Thomas F; Kelbaek, Henning; Karagiannis, Alexios; Radu, Maria D and Windecker, Stephan (2019). Changes in Coronary Plaque Composition in Patients With Acute Myocardial Infarction Treated With High-Intensity Statin Therapy (IBIS-4): A Serial Optical Coherence Tomography Study. JACC. Cardiovascular imaging, 12(8 Pt 1), pp. 1518-1528. Elsevier 10.1016/j.jcmg.2018.08.024

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OBJECTIVES This study assessed changes in optical coherence tomography (OCT)-defined plaque composition in patients with ST-elevation myocardial infarction (STEMI) receiving high-intensity statin treatment. BACKGROUND OCT is a high-resolution modality capable of measuring plaque characteristics including fibrous cap thickness (FCT) and macrophage infiltration. There is limited in vivo evidence regarding the effects of statins on OCT-defined coronary atheroma composition and no evidence in the context of STEMI. METHODS In the IBIS-4 (Integrated Biomarker Imaging Study-4), 103 patients underwent intravascular ultrasonography and OCT of 2 noninfarct-related coronary arteries in the acute phase of STEMI. Patients were treated with high-dose rosuvastatin for 13 months. Serial OCT imaging was available in 153 arteries from 83 patients. We measured FCT by using a semi-automated method. Co-primary endpoints consisted of the change in minimum FCT (measured in fibroatheromas) and change in macrophage line arc. RESULTS At 13 months, median low-density lipoprotein cholesterol had decreased from 128 mg/dl to 73.6 mg/dl. Minimum FCT, measured in 31 lesions from 27 patients, increased from 64.9 ± 19.9 μm to 87.9 ± 38.1 μm (p = 0.008). Macrophage line arc decreased from 9.6° ± 12.8° to 6.4° ± 9.6° (p < 0.0001). The secondary endpoint, mean lipid arc, decreased from 55.9° ± 37° to 43.5° ± 33.5°. In lesion-level analyses (n = 191), 9 of 13 thin-cap fibroatheromata (TCFAs) at baseline (69.2%) regressed to non-TCFA morphology, whereas 2 of 178 non-TCFA lesions (1.1%) progressed to TCFAs. CONCLUSIONS In this observational study, we found significant increase in minimum FCT, reduction in macrophage accumulation, and frequent regression of TCFAs to other plaque phenotypes in nonculprit lesions of patients with STEMI treated with high-intensity statin therapy.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology
04 Faculty of Medicine > Pre-clinic Human Medicine > CTU Bern
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Social and Preventive Medicine

UniBE Contributor:

Räber, Lorenz; Koskinas, Konstantinos; Yamaji, Kyohei; Taniwaki, Masanori; Maldonado, Rafaela; Moschovitis, Aris; Zaugg, Serge; Karagiannis Voules, Alexios and Windecker, Stephan

Subjects:

600 Technology > 610 Medicine & health
300 Social sciences, sociology & anthropology > 360 Social problems & social services

ISSN:

1936-878X

Publisher:

Elsevier

Funders:

[4] Swiss National Science Foundation

Language:

English

Submitter:

Tanya Karrer

Date Deposited:

17 Jan 2019 13:32

Last Modified:

04 Dec 2019 08:56

Publisher DOI:

10.1016/j.jcmg.2018.08.024

PubMed ID:

30553686

Uncontrolled Keywords:

atherosclerosis myocardial infarction optical coherence tomography plaque composition statin

BORIS DOI:

10.7892/boris.123497

URI:

https://boris.unibe.ch/id/eprint/123497

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