Research on high on-treatment platelet reactivity and CYP2C19 polymorphisms up to six months after p

来源 :第十二届中国介入心脏病学大会(CIT2014) | 被引量 : 0次 | 上传用户:gebmmi
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Background We aimed to investigate the relationship between cytochrome (CYP) 2C19 *2,*3 polymorphisms and high on-treatment platelet reactivity (HPR) in patients treated with percutaneous coronary interventions (PCI) and dual antiplatelet therapy over a 6-month period.Totally 47 patients post-PCI were enrolled in the first affiliated hospital of SooChow university from June 2012 to September 2012.Patients received a 300 mg loading dose (LD) clopidogrel and aspirin or 75 mg/d clopidogrel and 100 mg/d aspirin maintenance dose (MD) before PCI,then continued with clopidogrel and aspirin MD as dual antiplatelet therapy.Max platelet aggregation (MPA) was assessed by light transmittance aggregometry (LTA) following 2 μmol/L and 5 μrmol/L adenosine diphosphate (ADP) stimili in post-PCI patients after 6 months.Direct sequence was used to genotype the CYP2C19*2,CYP2C19*3 polymorphisms in these patients.HPR was defined as MPA ≥46%,whereas those having <46% were nHPR.Basic clinical data,routine examination,PCI details,MPA and CYP2C19 polymorphisms were assessed and compared between HPR group and nHPR group.According to CYP2C 19 polymorphism,we examined MPA and HPR in different phenotype.
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