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Ricchiuto, Alfredo; Zella, Samuela; Lombardi, Marco; Buonpane, Angela; Bianchini, Emiliano; Maino, Alessandro; Busco, Marco; D´amario, Domenico; Leone, Antonio Maria; Aurigemma, Cristina; Romagnoli, Enrico; Burzotta, Francesco; Trani, Carlo; Crea, Filippo; Vergallo, Rocco
European heart journal supplements, 12/2022, Letnik: 24, Številka: Supplement_KJournal Article
Abstract Introduction Pathological studies have shown that many atherosclerotic plaques destabilize without resulting in a clinical manifestation. Recent in vivo studies showed that healed plaques are more common in patients with chronic coronary syndrome (CCS) than in those with acute coronary syndrome (ACS), suggesting that they might be a marker of clinical stability. The aim of the present study was to evaluate the clinical impact of healed coronary plaques detected by optical coherence tomography (OCT) imaging. Methods A total of 208 patients with CCS or ACS who underwent OCT imaging of non-target/non-culprit vessels were enrolled. Only non-culprit segments were analyzed. Patients were divided into two groups according to the presence or absence of healed plaques detected by OCT. The incidence of major adverse cardiac events (MACE) at follow-up was assessed, defined as the composite of cardiac death, non-fatal myocardial infarction, and target vessel revascularization (TVR). Results Healed coronary plaques were observed in 39.7% of patients, and the prevalence was higher in those presenting with chronic coronary syndrome. Median follow-up time was 4 years, and was not different between the two groups. Patients with healed plaques had a significantly lower incidence of MACE at follow-up (13.6% vs 22%, p=0.019), mainly driven by a lower rate of non-fatal myocardial infarctions (4.9% vs 10.2%, p=0.05). The incidence of cardiac death and TVR was not significantly different between the two groups (1.2% vs. 3.1%, p=0.288; and 13.6% vs. 15.0%, p= 0.187, respectively). At multivariate Cox regression analysis, the presence of plaque disruption was an independent predictor of MACE (odds ratio OR 3.33, 95% confidence interval CI 1.39-7.98, p=0.007), while the presence of healed plaque was an independent protective factor (OR 0.44, 95% CI 0.22-0.89, p=0.022). Conclusions Healed coronary plaques detected by OCT imaging are associated with a favorable clinical outcome at long-term follow-up.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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