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[Impact of cytochrome P450 2C19 polymorphisms on outcome of cardiovascular events in clopidogrel-treated Chinese patients after percutaneous coronary intervention].
Zhonghua Xin Xue Guan Bing za Zhi 2011 July
OBJECTIVE: To investigate the impact of cytochrome P450 (CYP) 2C19 681G > A polymorphism on long-term prognosis of clopidogrel-treated Chinese patients after percutaneous coronary intervention (PCI).
METHODS: Between January 1, 2009 and August 31,2009, 267 patients with coronary heart disease who received PCI and treated with clopidogrel for 12 months were enrolled. CYP2C19 * 2 was detected by MALDI-TOF MS and patients were grouped into CYP2C19 * 1/ * 1 (n = 130) and CYP2C19 * 2 carriers group (n = 137). Follow-up was 12 months. The primary endpoint was angina recurrence, urgent coronary revascularization, acute myocardial infarction, stent thrombosis, death and the combined end points.
RESULTS: Baseline data were similar between two groups (P > 0.05). Urgent coronary revascularization and the combined end points occurred more frequently in CYP2C19 * 2 carriers than in CYP2C19 * 1/* 1 patients (7.3% vs. 1.5% and 8.0% vs. 2.3% respectively, all P < 0.05). But incidence of angina recurrence, acute myocardial infarction, stent thrombosis and death was similar between two groups (all P > 0.05). Hazard risk of 1 year cumulative survival of CYP2C19 * 2 carriers group was significantly higher than CYP2C19 * 1/ * 1 group after PCI ( HR = 3.59, 95% CI: 1.02 - 12.87, P < 0.05).
CONCLUSION: CYP2C19 681G > A polymorphism is a determinant of prognosis in coronary heart disease patients receiving chronic clopidogrel treatment after PCI.
METHODS: Between January 1, 2009 and August 31,2009, 267 patients with coronary heart disease who received PCI and treated with clopidogrel for 12 months were enrolled. CYP2C19 * 2 was detected by MALDI-TOF MS and patients were grouped into CYP2C19 * 1/ * 1 (n = 130) and CYP2C19 * 2 carriers group (n = 137). Follow-up was 12 months. The primary endpoint was angina recurrence, urgent coronary revascularization, acute myocardial infarction, stent thrombosis, death and the combined end points.
RESULTS: Baseline data were similar between two groups (P > 0.05). Urgent coronary revascularization and the combined end points occurred more frequently in CYP2C19 * 2 carriers than in CYP2C19 * 1/* 1 patients (7.3% vs. 1.5% and 8.0% vs. 2.3% respectively, all P < 0.05). But incidence of angina recurrence, acute myocardial infarction, stent thrombosis and death was similar between two groups (all P > 0.05). Hazard risk of 1 year cumulative survival of CYP2C19 * 2 carriers group was significantly higher than CYP2C19 * 1/ * 1 group after PCI ( HR = 3.59, 95% CI: 1.02 - 12.87, P < 0.05).
CONCLUSION: CYP2C19 681G > A polymorphism is a determinant of prognosis in coronary heart disease patients receiving chronic clopidogrel treatment after PCI.
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