Aim: High platelet reactivity (HPR) is associated with increased risks of thrombotic events in patients with coronary artery disease. The recently developed ABCD-GENE score identified five clinical and genetic factors (age, body mass index, chronic kidney disease, diabetes, and the CYP2C19 loss-of-function allele) for HPR, although the significance of various stages of each factor is unclear.
Methods: Four prospective studies were pooled, in which platelet reactivity was measured using the VerifyNow assay with clopidogrel and prasugrel; genotyping of CYP2C19 was also performed. Each component of the ABCD-GENE score was divided into three subcategories. VerifyNow P2Y12 reactivity units >208 were defined as HPR.
Results: A total of 184 patients were included, of which 111 (60%) and 51 (28%) had HPR with clopidogrel and prasugrel. Chronic kidney disease had an impact on HPR on both clopidogrel and prasugrel, whereas the impact of diabetes was more evident in patients treated with prasugrel. Although the number of CYP2C19 loss-of-function alleles was clearly associated with a likelihood of HPR with clopidogrel, P2Y12 reactivity units with prasugrel treatment were also significantly and progressively higher in patients with more CYP2C19 loss-of-function alleles.
Conclusions: Clinical and genetic factors had a differential effect on a P2Y12 inhibitor reactivity with clopidogrel and prasugrel in patients with coronary artery disease. The severity of the factors also had a different impact on HPR.
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http://dx.doi.org/10.5551/jat.63035 | DOI Listing |
Neurol Res Pract
January 2025
Goethe University Frankfurt, University Hospital, Department of Neurology, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany.
Background: Advances in secondary stroke prevention, including direct oral anticoagulants (DOACs), dual antiplatelet therapies (DAPT), and cardiovascular risk management, have changed costs over the past decade. This study aimed to evaluate annual treatment costs and trends in drug-based secondary prophylaxis after ischemic strokes.
Methods: Annual treatment costs were evaluated using the net costs per defined daily dosage (DDD) of discharge medications for ischemic stroke patients treated in 2020 at the University Hospital Frankfurt, Germany.
Background: Antiplatelet drugs, such as clopidogrel, ticagrelor, prasugrel, and acetylsalicylic acid, may be associated with a risk of adverse events (AEs). Vanessa's Law was enacted to strengthen regulations to protect Canadians from drug-related side effects (with mandatory reporting of serious adverse events [SAEs]).
Objective: To determine whether Vanessa's Law has led to an increase in SAE reporting among antiplatelet users.
J Evid Based Med
December 2024
Department of Respiratory and Critical Care Medicine, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China.
Objective: The optimal low-dose antiplatelet agents in patients with coronary heart disease (CHD) had not been determined. The objective of this study was to compare the impact of different low-dose antiplatelet agents on cardiovascular outcomes and bleeding risks in patients with CHD.
Methods: We searched PubMed, Embase, the Cochrane Library, China National Knowledge Infrastructure, VIP, WanFang Data, and China Biology Medicine.
Interv Cardiol Clin
October 2024
Division of Cardiology, University of Florida College of Medicine-Jacksonville, ACC Building 5th Floor, 655 West 8th Street, Jacksonville, FL 32209, USA.
Antiplatelet therapy involving aspirin and a P2Y receptor inhibitor is fundamental in managing patients with atherothrombotic disease. Switching between P2Y inhibitors is frequently observed in clinical settings for various reasons, such as safety, efficacy, patient adherence, or cost concerns. Although it occurs often, the optimal method for switching remains a concern owing to potential drug interactions, which can result in either inadequate platelet inhibition and subsequent thrombotic events or low platelet reactivity and increased bleeding risks due to therapy overlap.
View Article and Find Full Text PDFEur J Cardiothorac Surg
December 2024
Cardiac Surgery Department, University Hospital of Angers, 4 Rue Larrey, Angers, 49100, France.
Objectives: Antiplatelet therapy increases the risk of bleeding and transfusion in patients undergoing extracorporeal circulation. Reduced goal-directed anticoagulation is a personalized approach to reduce the anticoagulation based on a lower targeted activated clotting time. We assessed whether reduced goal-directed anticoagulation using optimized extracorporeal circulation alleviates the risk of severe bleeding in patients treated by dual antiplatelet therapy (DAPT) compared to aspirin alone during coronary artery bypass grafting (CABG).
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