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Homocysteine is associated with the progression of non-culprit coronary lesions in elderly acute coronary syndrome patients after percutaneous coronary intervention

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Journal of Geriatric Cardiology 2016年第4期13卷 299-305页

作者： Tian-Wen HAN Shan-Shan ZHOU Jian-Tao LI Feng TIAN Yang MU Jing JING Yun-Feng HAN Yun-Dai CHEN Department of Cardiology Chinese PLA General Hospital Beijing China

Background The influence of homocysteine （Hcy） on the migration and proliferation of vascular smooth muscle cells has been well established. However, the impact of Hcy levels on the progression of non-culprit coronary lesions （NCCLs） is controversial. This study aims to evaluate whether the plasma level of Hcy is related to the progression of NCCLs after percutaneous coronary stent implantation in elderly patients with acute coronary syndrome （ACS）. Methods A total of 223 elderly patients （〉 65 years old） with ACS undergoing stent im- plantation and follow-up coronary angiography were enrolled. Laboratory determination comprised of blood sample evaluation for Hcy was carried out before baseline coronary intervention. The patients were classified into two groups according to the blood Hcy tertiles （〉 15 mmol/L or 〈 15 mmol/L）. Patients were followed up for 12.2 months. NCCL progression was assessed by three-dimensional quantitative coronary angiography. Results A significantly higher ratio of NCCL progression was observed in the group with baseline Hcy concentrations above 15 mmol/L compared to the group with concentrations below 15 mmol/L （41/127, 32.3% vs. 14/96, 14.6%, P = 0.002）. Multivariate Cox regression analysis showed that Hcy and diabetes mellitus were independent risk factors for NCCL progression. The crude haz- ard ratio （HR） of NCCL progression for Hcy level was 1.056 （95% CI： 1.01-1.104, P = 0.015）. The adjusted HR of NCCL progression for Hcy level was 1.024 （95% CI： 1.007-1.042, P = 0.007）. The adjusted HR of NCCL progression for diabetes mellitus was 1.992 （95% CI： 1.15-3.44, P = 0.013）. Conclusions Hcy is an independent risk factor for NCCL progression after 12 months of follow-up in elderly patients with ACS who has undergone percutaneous coronary stenting.

关键词： coronary angiography Elderly patients Homocysteine non-culprit coronary lesion Percutaneous coronary intervention

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