نتایج جستجو برای: verifynow
تعداد نتایج: 293 فیلتر نتایج به سال:
BACKGROUND The inhibitory response to clopidogrel varies widely among individuals. Data suggest that patients with high residual platelet reactivity despite clopidogrel therapy are at greater risk for thrombotic events after percutaneous coronary intervention (PCI) with drug-eluting stents (DES). The Gauging Responsiveness with A VerifyNow assay--Impact on Thrombosis And Safety (GRAVITAS) trial...
Background. The CYP2C19∗2 allele may be associated with a reduced antiplatelet effect for clopidogrel. Here, we assessed whether CYP2C19∗2 alleles correlate with clopidogrel responsiveness following the administration of clopidogrel in healthy Malaysian volunteers. Methods. Ninety volunteers were genotyped for CYP2C19∗2 and CYP2C19∗3 alleles. Forty-five of 90 volunteers were included in the clo...
BACKGROUND Adding a prasugrel loading dose (LD) to a clopidogrel LD could be desirable because clopidogrel may fail to provide adequate levels of platelet inhibition in patients with acute coronary syndrome undergoing percutaneous coronary intervention. METHODS AND RESULTS The pharmacodynamic response of prasugrel 60 mg ld alone was compared with prasugrel 60 mg or 30 mg added 24 hours to clo...
OBJECTIVES This study sought to determine whether known genetic, drug, dietary, compliance, and lifestyle factors affecting clopidogrel absorption and metabolism fully account for the variability in clopidogrel pharmacokinetics and pharmacodynamics. BACKGROUND Platelet inhibition by clopidogrel is highly variable. Patients with reduced inhibition have increased risk for major adverse cardiova...
OBJECTIVE The purpose of this study was to analyze the variability of clopidogrel responses according to duration of a clopidogrel drug regimen after stent-assisted coil embolization (SAC), and to determine the correlation between the variability of clopidogrel responses and thromboembolic or hemorrhagic complications. METHODS A total of 47 patients who underwent SAC procedures to treat unrup...
Hypothetically, diminished platelet reactivity (PR) during dual antiplatelet therapy (DAPT) should cause extra major bleeding events (MBE), although definite evidence is lacking. Multiple scores have been proposed to stratify bleeding risk, but their predictive value during DAPT is unclear. We compared the performance of the Can Rapid Risk Stratification of Unstable Angina Patients Suppress Adv...
OBJECTIVES The aim of this study was to assess the degree of platelet inhibition by adjunctive cilostazol in patients with acute myocardial infarction (AMI) according to hepatic cytochrome P450 2C19 (CYP2C19) genotype. BACKGROUND Although adjunctive cilostazol intensifies platelet inhibition in AMI patients, it is not established whether this regimen can be free from the effect of CYP2C19 los...
OBJECTIVE Oral P2Y₁₂ platelet receptor inhibitors are a cornerstone of reducing complications in patients with acute coronary syndromes or coronary stents. Guidelines advocate discontinuing treatment with P2Y₁₂ platelet receptor inhibitors before surgery. Cangrelor, a short-acting, reversible, intravenously administered P2Y₁₂ platelet inhibitor is effective in achieving appropriate platelet inh...
BACKGROUND Individualizing antiplatelet therapy after platelet function testing did not improve outcome after coronary stenting in the Assessment by a Double Randomization of a Conventional Antiplatelet Strategy Versus a Monitoring-Guided Strategy for Drug-Eluting Stent Implantation and of Treatment Interruption Versus Continuation One Year After Stenting (ARCTIC) study. Whether results are dif...
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