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  • Title: Prognostic role of apolipoproteins on long-term major adverse cardiac events after percutaneous coronary intervention.
    Author: Kawahara H, Endo A, Uchida K, Tanabe K.
    Journal: Cardiovasc Revasc Med; 2024 Apr; 61():85-92. PubMed ID: 37872021.
    Abstract:
    BACKGROUND/PURPOSE: Apolipoprotein (apo) levels are associated with coronary risk. However, the relationship between apo levels after percutaneous coronary intervention (PCI) and long-term major adverse cardiac events (MACEs) remains unclear. We aimed to investigate the association between lipid levels, including apo, at follow-up, and long-term MACEs in patients undergoing PCI. METHODS/MATERIALS: In total, 241 patients who underwent PCI between January 2004 and August 2008 were included in this study. MACEs were defined as cardiac death, acute coronary syndrome, or coronary revascularization of new lesions. The primary endpoint was MACE, and the secondary endpoint was a composite of cardiac death and acute coronary syndrome. RESULTS: During a mean follow-up period of 2079 days, the following cardiovascular events occurred in 78 patients: cardiovascular death (n = 1), non-fatal acute myocardial infarctions (n = 10), and revascularizations of new lesions (n = 67). Multivariate cox's proportional hazards analysis showed that the apo B level was an independent risk factor for MACEs (hazard ratio 1.11, 95 % confidence interval 1.03-1.20; P = 0.009). In the Kaplan-Meier estimation for primary endpoints, significant differences were observed in the apo B level and apo B/apo A1 ratio (P = 0.04 and P = 0.004, respectively). However, there was no difference in the LDL-C level and LDL-C/HDL-C ratio. At the secondary endpoint, only the apo B/apo A1 ratio was a prognostic factor (P = 0.007). CONCLUSIONS: In the long-term cardiovascular events of patients undergoing PCI, the apo B level and apo B/apo A1 ratio were more valuable prognostic factors for cardiovascular events compared to the LDL-C level and LDL-C/HDL-C ratio.
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