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Woerde DJ, Palm CA, Duler LM, Cowgill LD, Ames MK, Culp WTN. Case report: Chylopericardium secondary to dialysis catheter related jugular venous thrombosis in two dogs receiving long-term hemodialysis. Front Vet Sci 2024; 11:1386710. [PMID: 38831956 PMCID: PMC11144879 DOI: 10.3389/fvets.2024.1386710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/30/2024] [Indexed: 06/05/2024] Open
Abstract
Chylopericardium is a rare entity in veterinary medicine. In this report we document the development of chylopericardium in two dogs undergoing chronic hemodialysis. An 11-year-old female spayed Labrador retriever (Case 1) presented with acute coughing and lethargy 2 months following initial dialysis catheter placement and initiation of dialysis therapy for severe azotemia. Echocardiography demonstrated severe pericardial effusion and cardiac tamponade. Pericardial fluid analysis was consistent with chylous effusion. The dog underwent a subtotal pericardiectomy with thoracic duct ligation, and a PleuralPort™ was placed. The patient continued to receive outpatient hemodialysis therapy after pericardiectomy for several months until she died acutely at home. A 4-year-old male neutered Doberman (Case 2) was being treated for 2 months with outpatient hemodialysis for management of chronic kidney disease. On presentation for the 17th hemodialysis treatment, the patient had increased respiratory rate. Echocardiography demonstrated pleural and pericardial effusions, and fluid analysis in both cavities was consistent with chylous effusion. Use of tissue plasminogen activator (TPA), clot removal and replacement of the catheter was attempted; however pleural and pericardial effusion continued. The patient was euthanized after 25 hemodialysis sessions as owners elected not to pursue more procedures. In both cases, the cause of the chylopericardium was suspected to be secondary to catheter-associated thrombosis and/or stenosis based on multiple imaging modalities. Despite use of rivaroxaban and clopidogrel concurrently in each case, the chylous effusion persisted. This case report describes clinical details of a rare complication of long-term indwelling dialysis catheters in two dogs.
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Affiliation(s)
- Dennis J. Woerde
- William R Pritchard Veterinary Medical Teaching Hospital, University of California, Davis, Davis, CA, United States
| | - Carrie A. Palm
- Department of Veterinary Medicine and Epidemiology, University of California, Davis, Davis, CA, United States
| | - Laetitia M. Duler
- William R Pritchard Veterinary Medical Teaching Hospital, University of California, Davis, Davis, CA, United States
| | - Larry D. Cowgill
- Department of Veterinary Medicine and Epidemiology, University of California, Davis, Davis, CA, United States
| | - Marisa K. Ames
- Department of Veterinary Medicine and Epidemiology, University of California, Davis, Davis, CA, United States
| | - William T. N. Culp
- Department of Surgical & Radiological Sciences, University of California, Davis, Davis, CA, United States
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2
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Plakogiannis FA, Weidmann J, Fraser B, Kwong J, Asi D, Kumar P, Baldock M, Naamo J, Baluja R, Catanzariti R, Yeung S, Pont L, Williams K, De Rubis G, Dua K, Bukhari NI. Investigation of smoking on the antiplatelet response to clopidogrel: Unravelling the smoker's paradox. Pathol Res Pract 2024; 257:155290. [PMID: 38640781 DOI: 10.1016/j.prp.2024.155290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/20/2024] [Accepted: 04/02/2024] [Indexed: 04/21/2024]
Abstract
The intricate relationship between smoking and the effects of the antiplatelet drug clopidogrel has been termed the "smoker's paradox". This paradox details the enhanced efficacy of clopidogrel in smokers compared to non-smokers. This review begins with an exploration of the proposed mechanisms of the smoker's paradox, particularly drawing attention to the induction of cytochrome P450 (CYP) isoenzymes via tobacco smoke, specifically the enzymes CYP1A2 and CYP2C19. Moreover, an investigation of the effects of genetic variability on the smoker's paradox was undertaken from both clinical and molecular perspectives, delving into the effects of ethnicity and genetic polymorphisms. The intriguing role of CYP1A2 genotypes and the response to clopidogrel in smoking and non-smoking populations was examined conferring insight into the individuality rather than universality of the smoker's paradox. CYP1A2 induction is hypothesised to elucidate the potency of smoking in exerting a counteracting effect in those taking clopidogrel who possess CYP2C19 loss of function polymorphisms. Furthermore, we assess the comparative efficacies of clopidogrel and other antiplatelet agents, namely prasugrel and ticagrelor. Studies indicated that prasugrel and ticagrelor provided a more consistent effect and further reduced platelet reactivity compared to clopidogrel within both smoking and non-smoking populations. Personalised dosing was another focus of the review considering patient comorbidities, genetic makeup, and smoking status with the objective of improving the antiplatelet response of those taking clopidogrel. In summation, this review provides insight into multiple areas of research concerning clopidogrel and the smoker's paradox taking into account proposed mechanisms, genetics, other antiplatelet agents, and personalised dosing.
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Affiliation(s)
- Frank A Plakogiannis
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jakob Weidmann
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Blake Fraser
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Justin Kwong
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Diana Asi
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Pratham Kumar
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Madeleine Baldock
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jasmine Naamo
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Ruhani Baluja
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Rachelle Catanzariti
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Stewart Yeung
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, Australia
| | - Lisa Pont
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Kylie Williams
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Gabriele De Rubis
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, Australia.
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, Australia.
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Varian FL, Parker WAE, Fotheringham J, Storey RF. Treatment inequity in antiplatelet therapy for ischaemic heart disease in patients with advanced chronic kidney disease: releasing the evidence vacuum. Platelets 2023; 34:2154330. [DOI: 10.1080/09537104.2022.2154330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Frances L. Varian
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK and
| | - William A. E. Parker
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK and
| | - James Fotheringham
- School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - Robert F. Storey
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK and
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Zhang Y, Zong Y, Liu J, Yin K, Wang Y, Bian Y, Huang Y, Liu W, Cao Y. Clopidogrel-Related High Residual Platelet Reactivity Associated with Estimated Glomerular Filtration Rate in Patients with Acute Ischemic Stroke. Cerebrovasc Dis Extra 2023; 13:83-89. [PMID: 37812922 PMCID: PMC10620003 DOI: 10.1159/000534466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/02/2023] [Indexed: 10/11/2023] Open
Abstract
INTRODUCTION There are few studies on the relationship between the occurrence of clopidogrel-related high residual platelet reactivity (HRPR) and estimated glomerular filtration rate (eGFR) at admission in patients with ischemic stroke. The aim of this study was to investigate the possible relationship between the two. METHODS Patients who were hospitalized and diagnosed with acute ischemic stroke were recruited from July 1, 2017, to June 30, 2018, at Shanghai TCM-Integrated Hospital. Renal function was measured within 24 h of enrollment and eGFR was calculated. Patients were tested for platelet reactivity using the VerifyNow system after 7 days of antiplatelet therapy with clopidogrel 75 mg/d alone, and patients with P2Y12 reaction unit values ≥230 were diagnosed with HRPR. The association between HRPR and eGFR was analyzed. RESULTS A total of 274 patients were enrolled in the study, of whom 91 (33.21%) had HRPR. Multivariate logistic regression analysis suggested that an increased risk of HRPR was independently associated with female sex and reduced eGFR (female sex: OR = 2.24, 95% CI: 1.26-3.99, p = 0.006; mild chronic kidney disease [CKD]: OR = 2.95, 95% CI: 1.47-5.93, p = 0.002; moderate CKD: OR = 3.07, 95% CI: 1.08-8.75, p = 0.04). CONCLUSION Decreased eGFR is an independent risk factor for the occurrence of HRPR in patients with ischemic stroke.
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Affiliation(s)
- Yongkang Zhang
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Diagnosis and Treatment Center of Vascular Disease, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Neurology Rehabilitation, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Yuan Zong
- Diagnosis and Treatment Center of Vascular Disease, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiarui Liu
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Diagnosis and Treatment Center of Vascular Disease, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Kangli Yin
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Diagnosis and Treatment Center of Vascular Disease, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yuzhen Wang
- Diagnosis and Treatment Center of Vascular Disease, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yuefeng Bian
- Department of Emergency, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yichen Huang
- Faculty of Rehabilitation Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wei Liu
- Department of Neurology Rehabilitation, The First Rehabilitation Hospital of Shanghai, Shanghai, China
| | - Yemin Cao
- Diagnosis and Treatment Center of Vascular Disease, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Abstract
Antiplatelet therapy is used in the treatment of patients with acute coronary syndromes, stroke, and those undergoing percutaneous coronary intervention. Clopidogrel is the most widely used antiplatelet P2Y12 inhibitor in clinical practice. Genetic variation in CYP2C19 may influence its enzymatic activity, resulting in individuals who are carriers of loss-of-function CYP2C19 alleles and thus have reduced active clopidogrel metabolites, high on-treatment platelet reactivity, and increased ischemic risk. Prospective studies have examined the utility of CYP2C19 genetic testing to guide antiplatelet therapy, and more recently published meta-analyses suggest that pharmacogenetics represents a key treatment strategy to individualize antiplatelet therapy. Rapid genetic tests, including bedside genotyping platforms that are validated and have high reproducibility, are available to guide selection of P2Y12 inhibitors in clinical practice. The aim of this review is to provide an overview of the background and rationale for the role of a guided antiplatelet approach to enhance patient care.
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Affiliation(s)
- Matteo Castrichini
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA;
| | - Jasmine A Luzum
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, Michigan, USA
| | - Naveen Pereira
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA;
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Ideal P2Y12 Inhibitor in Acute Coronary Syndrome: A Review and Current Status. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19158977. [PMID: 35897347 PMCID: PMC9331944 DOI: 10.3390/ijerph19158977] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 07/13/2022] [Accepted: 07/19/2022] [Indexed: 02/05/2023]
Abstract
Dual antiplatelet therapy (DAPT) has remained the cornerstone for management of acute coronary syndrome (ACS) over the years. Clopidogrel has been the quintessential P2Y12 receptor (platelet receptor for Adenosine 5′ diphosphate) inhibitor for the past two decades. With the demonstration of unequivocal superior efficacy of prasugrel/ticagrelor over clopidogrel, guidelines now recommend these agents in priority over clopidogrel in current management of ACS. Cangrelor has revived the interest in injectable antiplatelet therapy too. Albeit the increased efficacy of these newer agents comes at the cost of increased bleeding and this becomes more of a concern when combined with aspirin. Which P2Y12i is superior over another has been intensely debated over last few years after the ISAR-REACT 5 study with inconclusive data. Three novel antiplatelet agents are already in the pipeline for ACS with all of them succeeding in phase II studies. The search for an ideal antiplatelet remains a need of the hour for optimal reduction of ischemic events in ACS.
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Lim IH, Lee SJ, Shin BS, Kang HG. Ilaprazole and Clopidogrel Resistance in Acute Stroke Patients. Biomedicines 2022; 10:biomedicines10061366. [PMID: 35740386 PMCID: PMC9219695 DOI: 10.3390/biomedicines10061366] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/30/2022] [Accepted: 06/06/2022] [Indexed: 01/01/2023] Open
Abstract
Clopidogrel, an antiplatelet agent used for secondary prevention of cerebrovascular diseases, is often taken with proton pump inhibitors (PPIs). Generally, the combined use of clopidogrel and PPIs causes adverse drug–drug interactions. VerifyNow is a quick and convenient method to confirm clopidogrel resistance (CR), which compromises adequate antithrombotic effects. We aimed to confirm CR, identify its factors, and determine the influence of the combination of ilaprazole and clopidogrel on clopidogrel using VerifyNow. In this retrospective study, we examined patients who were receiving clopidogrel after three months, starting within one week from the onset of cerebral infarction symptoms. Clinical records, imaging records, and diagnostic laboratory results, including P2Y12 reaction units (PRU), were compared and analyzed to check for CR. Additionally, the groups treated with either both ilaprazole and clopidogrel or with medications other than ilaprazole were comparatively analyzed. CR was defined as a PRU ≥240 after clopidogrel for three months. Among factors influencing CR by affecting clopidogrel metabolism, positive statistical correlations with age and alcohol consumption were confirmed. The diagnostic tests revealed a lower glomerular filtration rate and platelet count of the CR-positive group. This finding proved that the combination therapy of ilaprazole and clopidogrel is safe, as it does not interfere with the metabolism of clopidogrel.
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Affiliation(s)
- In Hwan Lim
- Department of Pharmacology, School of Medicine, Wonkwang University, Iksan 54538, Korea;
| | - Seung Jae Lee
- Department of Chemistry, Institute for Molecular Biology and Genetics, Jeonbuk National University, Jeonju 54907, Korea;
| | - Byoung-Soo Shin
- Department of Neurology, Jeonbuk National University, Jeonju 54907, Korea;
- Research Institute of Clinical Medicine, Jeonbuk National University, Jeonju 54907, Korea
- Biomedical Research Institute, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Korea
| | - Hyun Goo Kang
- Department of Neurology, Jeonbuk National University, Jeonju 54907, Korea;
- Research Institute of Clinical Medicine, Jeonbuk National University, Jeonju 54907, Korea
- Biomedical Research Institute, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Korea
- Correspondence: ; Tel.: +82-63-250-1590
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8
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Li Q, Chen Y, Liu Y, Yu L, Zheng J, Sun Y. Impact of renal function on residual platelet reactivity and clinical outcomes in patients with acute coronary syndrome treated with clopidogrel. Clin Cardiol 2021; 44:789-796. [PMID: 33978269 PMCID: PMC8207985 DOI: 10.1002/clc.23588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/16/2021] [Accepted: 02/26/2021] [Indexed: 01/29/2023] Open
Abstract
Background Chronic kidney disease (CKD) is a common comorbidity in patients with acute coronary syndrome (ACS) and may potentially influence platelet function. Hypothesis We explored the influence of renal function on platelet reactivity to investigate whether high residual platelet reactivity (HRPR) is associated with cardiovascular events. Methods ACS patients treated with aspirin and clopidogrel were prospectively enrolled. Patients were categorized into two groups on the basis of baseline estimated glomerular filtration rate (eGFR): non‐CKD (eGFR ≥60 mL/min/1.73 m2) and CKD (eGFR <60 mL/min/1.73 m2). Platelet function was measured by thromboelastography ≥5 days after maintenance dual antiplatelet therapy. Major adverse clinical events (MACEs) were collected at 1 year after discharge. Results There were 282 non‐CKD patients and 212 CKD patients. A significant difference in median MAADP value was observed between the two groups (15.0 mm vs. 31.3 mm, p < .001). HRPR was more prevalent in the CKD group than the non‐CKD group (27.4% vs 9.6%, p < .001). At 1‐year follow‐up, the incidence of MACEs was significantly higher for those with both CKD and HRPR compared with those with either CKD or HRPR (37.9% vs. 18.5%, p < .001). The relationship between HRPR and MACEs was consistent across CKD strata without evidence of interaction. Adding platelet reactivity to eGFR improved the model with area under the curve increasing from 0.703 to 0.734. Conclusion In patients with ACS, the risk of HRPR increased with declining eGFR. Both CKD and HRPR were associated with MACEs at 1‐year follow‐up.
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Affiliation(s)
- Qing Li
- Department of Cardiology, Peking University China-Japan Friendship School of Clinical Medicine, Beijing, 100029, China
| | - Yinong Chen
- Department of Cardiology, Peking University China-Japan Friendship School of Clinical Medicine, Beijing, 100029, China
| | - Ying Liu
- Department of Cardiology, Peking University China-Japan Friendship School of Clinical Medicine, Beijing, 100029, China
| | - Luyao Yu
- Department of Cardiology, Peking University China-Japan Friendship School of Clinical Medicine, Beijing, 100029, China
| | - Jingang Zheng
- Department of Cardiology, Peking University China-Japan Friendship School of Clinical Medicine, Beijing, 100029, China.,Department of Cardiology, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Yihong Sun
- Department of Cardiology, Peking University China-Japan Friendship School of Clinical Medicine, Beijing, 100029, China.,Department of Cardiology, China-Japan Friendship Hospital, Beijing, 100029, China
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Mangiacapra F, Sticchi A, Bressi E, Mangiacapra R, Viscusi MM, Colaiori I, Ricottini E, Cavallari I, Spoto S, Ussia GP, Ferraro PM, Grigioni F. Impact of Chronic Kidney Disease and Platelet Reactivity on Clinical Outcomes Following Percutaneous Coronary Intervention. J Cardiovasc Transl Res 2021; 14:1085-1092. [PMID: 33851372 DOI: 10.1007/s12265-021-10126-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 04/05/2021] [Indexed: 10/21/2022]
Abstract
We investigated the interaction between chronic kidney disease (CKD) and high platelet reactivity (HPR) in determining long-term clinical outcomes following elective PCI for stable coronary artery disease (CAD). A total of 500 patients treated with aspirin and clopidogrel were divided based on the presence of CKD (defined as glomerular filtration rate of < 60 ml/min/1.73 m2) and HPR (defined as a P2Y12 reaction unit value ≥ 240 at VerifyNow assay). Primary endpoint was the occurrence of major adverse clinical events (MACE) at 5 years. Patients with both CKD and HPR showed the highest estimates of MACE (25.6%, p = 0.005), all-cause death (17.9%, p = 0.004), and cardiac death (7.7%, p = 0.004). The combination of CKD and HPR was an independent predictor of MACE (HR 3.12, 95% CI 1.46-6.68, p = 0.003). In conclusion, the combination of CKD and HPR identifies a cohort of patients with the highest risk of MACE at 5 years.
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Affiliation(s)
- Fabio Mangiacapra
- Unit of Cardiovascular Science, Department of Medicine, Campus Bio-Medico University, Rome, Italy.
| | - Alessandro Sticchi
- Unit of Cardiovascular Science, Department of Medicine, Campus Bio-Medico University, Rome, Italy
| | - Edoardo Bressi
- Unit of Cardiovascular Science, Department of Medicine, Campus Bio-Medico University, Rome, Italy
| | - Roberto Mangiacapra
- U.O.C. Nefrologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia.,Università Cattolica del Sacro Cuore, Roma, Italia
| | - Michele Mattia Viscusi
- Unit of Cardiovascular Science, Department of Medicine, Campus Bio-Medico University, Rome, Italy
| | - Iginio Colaiori
- Unit of Cardiovascular Science, Department of Medicine, Campus Bio-Medico University, Rome, Italy
| | - Elisabetta Ricottini
- Unit of Cardiovascular Science, Department of Medicine, Campus Bio-Medico University, Rome, Italy
| | - Ilaria Cavallari
- Unit of Cardiovascular Science, Department of Medicine, Campus Bio-Medico University, Rome, Italy
| | - Silvia Spoto
- Unit of Diagnostic and Therapeutic Medicine, Department of Medicine, Campus Bio-Medico University, Rome, Italy
| | - Gian Paolo Ussia
- Unit of Cardiovascular Science, Department of Medicine, Campus Bio-Medico University, Rome, Italy
| | - Pietro Manuel Ferraro
- U.O.C. Nefrologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia.,Università Cattolica del Sacro Cuore, Roma, Italia
| | - Francesco Grigioni
- Unit of Cardiovascular Science, Department of Medicine, Campus Bio-Medico University, Rome, Italy
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10
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P2Y12 Antiplatelet Choice for Patients with Chronic Kidney Disease and Acute Coronary Syndrome: A Systematic Review and Meta-Analysis. J Pers Med 2021; 11:jpm11030222. [PMID: 33801161 PMCID: PMC8004167 DOI: 10.3390/jpm11030222] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/04/2021] [Accepted: 03/16/2021] [Indexed: 11/17/2022] Open
Abstract
This study aims to evaluate potentially appropriate antiplatelet therapy in patients with chronic kidney disease. A systematic analysis was conducted to identify the clinical outcomes of available antiplatelet therapy regimens with enhanced platelet inhibition activity (intervention of 5 regimens) over the standard dose of clopidogrel-based dual antiplatelet therapy in patients with renal insufficiency. An electronic keyword search was performed on Pubmed, Embase, and Cochrane Library per PRISMA guidelines. We performed a prespecified net clinical benefit analysis (a composite of the rates of all-cause or cardiac-related death, myocardial infarction, major adverse cardiac outcomes, and minor and major bleeding), and included 12 studies. The intervention substantially lowered the incidence of all-cause mortality (RR 0.67; p = 0.003), major adverse cardiac outcomes (RR 0.79; p < 0.00001), and myocardial infarction (RR 0.28; p = 0.00007) without major bleeding (RR 1.14; p = 0.33) in patients with renal insufficiency, but no significant differences were noticed with cardiac-related mortality and stent thrombosis. The subgroup analysis revealed substantially elevated bleeding risk in patients with severe renal insufficiency or on hemodialysis (RR 1.68; p = 0.002). Our study confirmed that the intervention considerably enhances clinical outcomes in patients with renal insufficiency, however, a standard dose of clopidogrel-based antiplatelet therapy is favorable in patients with severe renal insufficiency.
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11
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Terrier J, Daali Y, Fontana P, Csajka C, Reny JL. Towards Personalized Antithrombotic Treatments: Focus on P2Y 12 Inhibitors and Direct Oral Anticoagulants. Clin Pharmacokinet 2020; 58:1517-1532. [PMID: 31250210 DOI: 10.1007/s40262-019-00792-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Oral anticoagulants and antiplatelet drugs are commonly prescribed to lower the risk of cardiovascular diseases, such as venous and arterial thrombosis, which represent the leading causes of mortality worldwide. A significant percentage of patients taking antithrombotics will nevertheless experience bleeding or recurrent ischemic events, and this represents a major public health issue. Cardiovascular medicine is now questioning the one-size-fits-all policy, and more personalized approaches are increasingly being considered. However, the available tools are currently limited and they are only moderately able to predict clinical events or have a significant impact on clinical outcomes. Predicting concentrations of antithrombotics in blood could be an effective means of personalization as they have been associated with bleeding and recurrent ischemia. Target concentration interventions could take advantage of physiologically based pharmacokinetic (PBPK) and population-based pharmacokinetic (POPPK) models, which are increasingly used in clinical settings and have attracted the interest of governmental regulatory agencies, to propose dosages adapted to specific population characteristics. These models have the benefit of combining parameters from different sources, such as experimental in vitro data and patients' demographic, genetic, and physiological in vivo data, to characterize the dose-concentration relationships of compounds of interest. As such, they can be used to predict individual drug exposure. In the near future, these models could therefore be a valuable means of predicting personalized antithrombotic blood concentrations and, hopefully, of preventing clinical non-response or bleeding in a given patient. Existing approaches for personalization of antithrombotic prescriptions will be reviewed using practical examples for P2Y12 inhibitors and direct oral anticoagulants. The review will additionally focus on the existing PBPK and POPPK models for these two categories of drugs. Lastly, we address potential scenarios for their implementation in clinics, along with the main limitations and challenges.
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Affiliation(s)
- Jean Terrier
- Division of General Internal Medicine, Geneva University Hospitals, Geneva, Switzerland.,Geneva Platelet Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Youssef Daali
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Geneva, Switzerland.,Clinical Pharmacology and Toxicology Service, Anesthesiology, Pharmacology and Intensive Care Department, Geneva University Hospitals, Geneva, Switzerland
| | - Pierre Fontana
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Division of Angiology and Haemostasis, Geneva University Hospitals, Geneva, Switzerland
| | - Chantal Csajka
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Geneva, Switzerland
| | - Jean-Luc Reny
- Division of General Internal Medicine, Geneva University Hospitals, Geneva, Switzerland. .,Geneva Platelet Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland. .,Division of Internal Medicine and Rehabilitation, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland.
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12
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Shropshire S, Johnson T, Olver C. Platelet aggregometry testing during aspirin or clopidogrel treatment and measurement of clopidogrel metabolite concentrations in dogs with protein-losing nephropathy. J Vet Intern Med 2020; 34:710-718. [PMID: 31981378 PMCID: PMC7096639 DOI: 10.1111/jvim.15694] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 12/19/2019] [Indexed: 12/22/2022] Open
Abstract
Background Dogs with protein‐losing nephropathy (PLN) are treated with antiplatelet drugs for thromboprophylaxis but no standardized method exists to measure drug response. It is also unknown if clopidogrel metabolite concentrations [CM] differ between healthy and PLN dogs. Objectives Assess response to aspirin or clopidogrel in PLN dogs using platelet aggregometry (PA) and compare [CM] between healthy and PLN dogs. Animals Six healthy and 14 PLN dogs. Methods Platelet aggregometry using adenosine diphosphate (ADP), arachidonic acid (AA), and saline was performed in healthy dogs at baseline and 1‐week postclopidogrel administration to identify responders or nonresponders. A decrease of ≥60% for ADP or ≥30% for AA at 1 or 3 hours postpill was used to define a responder. At 1 and 3 hours postclopidogrel, [CM] and PA were measured in healthy and PLN dogs. Platelet aggregometry was performed in PLN dogs at baseline, 1, 6, and 12 weeks after clopidogrel or aspirin administration. Results In PLN dogs receiving clopidogrel, PA differed from baseline at all time points for ADP but not for AA at any time point. Most dogs responded at 1 or both time points except for 1 dog that showed no response. For PLN dogs receiving aspirin, no differences from baseline were observed at any time point for either ADP or AA. No differences in [CM] were found at either time point between healthy and PLN dogs. Conclusions and Clinical Importance Platelet aggregometry may represent an objective method to evaluate response to clopidogrel or aspirin treatment and PLN dogs appear to metabolize clopidogrel similarly to healthy dogs.
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Affiliation(s)
- Sarah Shropshire
- Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado
| | - Tyler Johnson
- North Carolina State University, Raleigh, North Carolina
| | - Christine Olver
- Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado
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Dual antiplatelet therapy in coronary artery disease: from the past to the future prospective. Cardiovasc Interv Ther 2020; 35:117-129. [DOI: 10.1007/s12928-020-00642-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 01/27/2023]
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14
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Cardi T, Kayali A, Trimaille A, Marchandot B, Ristorto J, Hoang VA, Hess S, Kibler M, Jesel L, Ohlmann P, Morel O. Prognostic Value of Incomplete Revascularization after Percutaneous Coronary Intervention Following Acute Coronary Syndrome: Focus on CKD Patients. J Clin Med 2019; 8:jcm8060810. [PMID: 31174280 PMCID: PMC6617537 DOI: 10.3390/jcm8060810] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/23/2019] [Accepted: 06/03/2019] [Indexed: 12/20/2022] Open
Abstract
Background: Residual coronary artery disease (CAD) has been associated with worsened prognosis in patients undergoing percutaneous coronary intervention (PCI) for acute coronary syndromes (ACS). The residual SYNTAX Score (rSS) aims to assess residual CAD after PCI. The association between kidney function and rSS has not been investigated in ACS patients. In this study, we sought to determine whether chronic kidney disease (CKD) patients exhibit more incomplete revascularization following stage revascularization procedures by PCI. We evaluated the impact of incomplete revascularization on the occurrence of major cardiovascular events (MACE) at one-year follow-up. Methods: A total of 831 ACS patients undergoing PCI were divided into 3 subgroups according to their estimated Glomerular Filtration Rate (eGFR): 695 with eGFR ≥ 60 mL/min/1.73 m², 108 with eGFR 60–30 mL/min/1.73 m², 28 with eGFR < 30 mL/min/1.73 m². Initial SYNTAX score (SS) and rSS were calculated for all patients. Incomplete revascularization was defined by rSS > 8. The primary endpoint was the occurrence of MACE (all-cause mortality, myocardial infarction (MI), repeated revascularization except from planned revascularization, stroke and definite or probable recurrent stent thrombosis) one year after the index procedure. Results: Severe CKD patients had significantly higher MACE (12.0% vs. 25.9% vs. 35.7%; p < 0.001), all-cause mortality, cardiovascular mortality and heart failure events. Patients with rSS > 8 had higher MACE, all-cause and cardiovascular mortality. CKD was an independent predictive factor of rSS > 8 (HR: 1.65, 95% CI: 1.01 to 2.71; p = 0.048). Multivariate analysis identified rSS > 8, but not CKD, as an independent predictor of cardiac death and MACE. Conclusion: In ACS, CKD is predictive of incomplete revascularization, which stands out as a strong predictor of adverse cardiovascular outcomes including cardiac death and MACE.
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Affiliation(s)
- Thomas Cardi
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
| | - Anas Kayali
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
| | - Antonin Trimaille
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
| | - Benjamin Marchandot
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
| | - Jessica Ristorto
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
| | - Viet Anh Hoang
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
- Vietnam National Heart Institute, Bach Mai Hospital, 78 Giai Phong, Dong Da, 10000 Hanoi, Vietnam.
| | - Sébastien Hess
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
| | - Marion Kibler
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
| | - Laurence Jesel
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
- Regenerative Nanomedicine, UMR 1260, INSERM (French National Institute of Health and Medical Research), FMTS (Fédération de Médecine Translationnelle de l'Université de Strasbourg),
Université de Strasbourg, Faculté de Médecine, 11 rue Humann, 67085 Strasbourg, France.
| | - Patrick Ohlmann
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
| | - Olivier Morel
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Centre Hospitalier Universitaire, Université de Strasbourg, 67090 Strasbourg, France.
- Regenerative Nanomedicine, UMR 1260, INSERM (French National Institute of Health and Medical Research), FMTS (Fédération de Médecine Translationnelle de l'Université de Strasbourg),
Université de Strasbourg, Faculté de Médecine, 11 rue Humann, 67085 Strasbourg, France.
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Efficacy and Safety of Ticagrelor Compared with Clopidogrel in Patients with End-Stage Renal Disease with Acute Myocardial Infarction. Am J Cardiovasc Drugs 2019; 19:325-334. [PMID: 30746615 DOI: 10.1007/s40256-018-00318-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
OBJECTIVE This study investigated the efficacy and safety of ticagrelor compared with clopidogrel in patients with end-stage renal disease (ESRD) and acute myocardial infarction (AMI). METHODS We retrospectively enrolled patients who had received regular dialysis and had undergone percutaneous coronary intervention (PCI) for AMI at our hospital between January 2013 and December 2016. Outcomes analyzed included cardiovascular death, death from any cause, MI, stroke, and bleeding events. RESULT Patients were allocated to the ticagrelor group (N = 74) or the clopidogrel group (N = 116) according to the treatment they had received. No statistically significant differences were found between the groups in terms of in-hospital primary endpoint (composite of cardiovascular death, MI, and stroke: 12.2% and 15.5% for ticagrelor and clopidogrel, respectively; p = 0.518), secondary endpoint, or any bleeding events (39.2 vs. 34.5%; p = 0.511). No statistically significant differences were found for the 1-year primary endpoint (p = 0.424), secondary endpoint, and any bleeding events (p = 0.663). Risk factors for in-hospital cardiovascular death were shock and cardiopulmonary resuscitation at initial AMI presentation, lack of beta-blocker use, and in-hospital gastrointestinal bleeding. Risk factors for 1-year cardiovascular death were shock at initial AMI presentation and lack of beta-blocker use. Only respiratory failure was a risk factor for in-hospital and 1-year gastrointestinal bleeding. CONCLUSION In patients with ESRD and AMI, ticagrelor resulted in numerically fewer but statistically nonsignificant rates of in-hospital and 1-year cardiovascular events with no significant increase in bleeding events compared with clopidogrel.
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16
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Feng ZM, Lin YQ, Deng BQ, Shu XR, Ke X, Nie RQ. Pharmacodynamic changes of platelet reactivity status in patients with chronic kidney disease after coronary artery stenting. Biomed Pharmacother 2019; 113:108773. [DOI: 10.1016/j.biopha.2019.108773] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 03/10/2019] [Accepted: 03/11/2019] [Indexed: 12/25/2022] Open
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17
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Wu Y, Song Y, Pan Y, Gong Y, Zhou Y. High on-clopidogrel platelet reactivity and chronic kidney disease: a meta-analysis of literature studies. SCAND CARDIOVASC J 2019; 53:55-61. [PMID: 30909763 DOI: 10.1080/14017431.2019.1598571] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yu Wu
- Department of Nephrology, Beijing Tiantan hospital, Capital Medical University, Fengtai, China
| | - Yimiao Song
- School of Economics, Central University of Finance and Economics, Beijing, China
| | - Yuesong Pan
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, Beijing, China
- Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Yong Gong
- Department of Nephrology, Beijing Tiantan hospital, Capital Medical University, Fengtai, China
| | - Yilun Zhou
- Department of Nephrology, Beijing Tiantan hospital, Capital Medical University, Fengtai, China
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18
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Ohno Y, Kitahara H, Fujii K, Kohno Y, Ariyoshi N, Nishi T, Fujimoto Y, Kobayashi Y. High residual platelet reactivity after switching from clopidogrel to low-dose prasugrel in Japanese patients with end-stage renal disease on hemodialysis. J Cardiol 2019; 73:51-57. [DOI: 10.1016/j.jjcc.2018.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 05/21/2018] [Accepted: 07/02/2018] [Indexed: 12/21/2022]
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19
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Laboratory Monitoring of Antiplatelet Therapy. Platelets 2019. [DOI: 10.1016/b978-0-12-813456-6.00036-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Zhu P, Tang XF, Xu JJ, Song Y, Liu R, Zhang Y, Gao L, Gao Z, Chen J, Yang YJ, Gao RL, Xu B, Yuan JQ. Platelet reactivity in patients with chronic kidney disease undergoing percutaneous coronary intervention. Platelets 2018; 30:901-907. [PMID: 30518271 DOI: 10.1080/09537104.2018.1549319] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This study aimed to evaluate the platelet reactivity in real-world patients with different chronic kidney disease (CKD) stages after percutaneous coronary intervention (PCI), and to examine whether high residual platelet reactivity (HRPR) is associated with higher incidence of adverse cardiovascular events in a 2-year follow up. A total of 10 724 consecutive patients receiving DAPT with aspirin and clopidogrel after PCI throughout 2013 were enrolled. We applied modified thromboelastography (mTEG) in 6745 patients. Kaplan-Meier analysis and Cox proportional regression analysis were applied to illustrate end points for patients. The prevalence of HRPR for adenosine diphosphate (ADP) was higher in patients with CKD3-5 than patients with CKD1-2 (47.0% vs. 37.3%, p = 0.002), but not for arachidonic acid (AA). No significant difference was observed for MACCE between patients with or without HRPR for ADP (HR 1.004, 95%CI: 0.864-1.167, p = 0.954). Patients with HRPR for ADP was associated with less bleeding events than patients without HRPR for ADP (HR 0.795, 95%CI: 0.643-0.982, p = 0.034). In this large cohort of real-world patients after PCI, the deterioration of renal function was linked to HRPR for ADP. HRPR was not associated with MACCE in patients with CKD in a 2-year follow up. Bleeding risks were significantly lower in PCI patients with versus without HRPR for ADP.
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Affiliation(s)
- Pei Zhu
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Xiao-Fang Tang
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Jing-Jing Xu
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Ying Song
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Ru Liu
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Yin Zhang
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Lijian Gao
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Zhan Gao
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Jue Chen
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Yue-Jin Yang
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Run-Lin Gao
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Bo Xu
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Jin-Qing Yuan
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, The Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
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Acceleration of carboxylesterase-mediated activation of irinotecan to SN-38 by serum from patients with end-stage kidney disease. Cancer Chemother Pharmacol 2018; 81:1121-1128. [PMID: 29693202 DOI: 10.1007/s00280-018-3583-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 04/16/2018] [Indexed: 10/17/2022]
Abstract
PURPOSE Pharmacokinetics and pharmacodynamics of irinotecan have been reported to be altered in cancer patients with end-stage kidney disease (ESKD). Carboxylesterase (CES) has an important role in metabolism of irinotecan to its active metabolite, SN-38, in human liver. The purpose of the present study was to investigate whether CES activity was altered in ESKD patients. METHODS The present study investigated the effects of uremic serum, uremic toxins, and fatty acids on the hydrolysis of irinotecan and a typical CES substrate, p-nitrophenyl acetate (PNPA), in human liver microsomes. Normal and uremic serum samples were deproteinized by treatment with methanol were used in the present study. RESULTS The present study showed that both normal and uremic serum significantly inhibited CES-mediated metabolism of both irinotecan and PNPA. The inhibition by uremic serum was weaker than that by normal serum, suggesting that CES activity may be higher in ESKD patients. Although four uremic toxins did not affect PNPA metabolism, arachidonic acid inhibited it. There was no difference in inhibitory effect of PNPA metabolism between both mixtures of seven fatty acids used at concentrations equivalent to those present in 10% normal or uremic serum. Interestingly, those mixtures had a more pronounced effect than either 10% normal or uremic serum. CONCLUSIONS The present study showed that the inhibition of CES activity by uremic serum was weaker than that by normal serum, suggesting that an increase in maximum plasma concentration of SN-38 in cancer patients with ESKD can be attributed to an accelerated CES-mediated irinotecan hydrolysis.
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22
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Ristorto J, Messas N, Marchandot B, Kibler M, Hess S, Meyer N, Schaeffer M, Tuzin N, Ohlmann P, Jesel L, Morel O. Antiplatelet Therapy in ACS Patients: Comparing Appropriate P2Y12 Inhibition by Clopidogrel to the Use of New P2Y12 Inhibitors. J Atheroscler Thromb 2018; 25:674-689. [PMID: 29415954 PMCID: PMC6099071 DOI: 10.5551/jat.40584] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
AIM In percutaneous coronary intervention (PCI)-treated acute coronary syndrome (ACS) patients on clopidogrel therapy, high on-treatment platelet adenosine diphosphate (ADP) reactivity was observed in numerous studies, with significant increases in non-fatal myocardial infarction, definite/probable stent thrombosis, or cardiovascular mortality. Compared to clopidogrel, prasugrel and ticagrelor provide more potent platelet inhibition. Whether new P2Y12 inhibitors reduce thrombotic events in a similar manner compared to the rate observed with appropriate P2Y12 inhibition by clopidogrel must still be determined. This study sought to compare long-term outcomes between clopidogrel responders (platelet reactivity index [PRI] vasodilator-stimulated phosphoprotein [VASP] <61%) and patients under prasugrel or ticagrelor therapy following PCI-treated ACS. METHODS 730 ACS patients undergoing urgent PCI were prospectively enrolled into two groups: clopidogrel responders (n=448) and those under ticagrelor or prasugrel therapy (n=282). The primary endpoint was a composite of cardiovascular death, myocardial infarction, stent thrombosis, and stroke; the secondary endpoint comprised major hemorrhagic events. RESULTS The median follow-up was 260±186 days. Clopidogrel patients were older and more likely to present non-ST segment elevation myocardial infarction, cardiovascular risk factors, atrial fibrillation, or prior vascular disease. After propensity score matching, the primary endpoint was met in 7.1% of the clopidogrel group and 4.1% of the prasugrel/ticagrelor group (p=0.43). Minor bleeding events were significantly reduced in the clopidogrel group (1.1% vs. 3%; p=0.03). In a multivariate analysis, the antiplatelet treatment strategy was not an independent primary endpoint predictor. CONCLUSION In PCI-treated ACS patients, clopidogrel therapy and PRI VASP <61% were not associated with increased risks of thrombotic events compared to prasugrel or ticagrelor therapy.
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Affiliation(s)
- Jessica Ristorto
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Université de Strasbourg
| | - Nathan Messas
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Université de Strasbourg
| | - Benjamin Marchandot
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Université de Strasbourg
| | - Marion Kibler
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Université de Strasbourg
| | - Sébastien Hess
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Université de Strasbourg
| | - Nicolas Meyer
- GMRC, Service de Santé Publique, CHU et Université de Strasbourg
| | | | - Nicolas Tuzin
- GMRC, Service de Santé Publique, CHU et Université de Strasbourg
| | - Patrick Ohlmann
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Université de Strasbourg
| | - Laurence Jesel
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Université de Strasbourg.,UMR CNRS 7213 Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg
| | - Olivier Morel
- Pôle d'Activité Médico-Chirurgicale Cardio-Vasculaire, Nouvel Hôpital Civil, Université de Strasbourg.,UMR CNRS 7213 Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie, Université de Strasbourg
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Pharmacogenomic Impact of CYP2C19 Variation on Clopidogrel Therapy in Precision Cardiovascular Medicine. J Pers Med 2018; 8:jpm8010008. [PMID: 29385765 PMCID: PMC5872082 DOI: 10.3390/jpm8010008] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/20/2018] [Accepted: 01/22/2018] [Indexed: 12/21/2022] Open
Abstract
Variability in response to antiplatelet therapy can be explained in part by pharmacogenomics, particularly of the CYP450 enzyme encoded by CYP2C19. Loss-of-function and gain-of-function variants help explain these interindividual differences. Individuals may carry multiple variants, with linkage disequilibrium noted among some alleles. In the current pharmacogenomics era, genomic variation in CYP2C19 has led to the definition of pharmacokinetic phenotypes for response to antiplatelet therapy, in particular, clopidogrel. Individuals may be classified as poor, intermediate, extensive, or ultrarapid metabolizers, based on whether they carry wild type or polymorphic CYP2C19 alleles. Variant alleles differentially impact platelet reactivity, concentration of plasma clopidogrel metabolites, and clinical outcomes. Interestingly, response to clopidogrel appears to be modulated by additional factors, such as sociodemographic characteristics, risk factors for ischemic heart disease, and drug-drug interactions. Furthermore, systems medicine studies suggest that a broader approach may be required to adequately assess, predict, preempt, and manage variation in antiplatelet response. Transcriptomics, epigenomics, exposomics, miRNAomics, proteomics, metabolomics, microbiomics, and mathematical, computational, and molecular modeling should be integrated with pharmacogenomics for enhanced prediction and individualized care. In this review of pharmacogenomic variation of CYP450, a systems medicine approach is described for tailoring antiplatelet therapy in clinical practice of precision cardiovascular medicine.
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Amin AM, Sheau Chin L, Teh CH, Mostafa H, Mohamed Noor DA, SK Abdul Kader MA, Kah Hay Y, Ibrahim B. 1 H NMR based pharmacometabolomics analysis of urine identifies metabolic phenotype of clopidogrel high on treatment platelets reactivity in coronary artery disease patients. J Pharm Biomed Anal 2017; 146:135-146. [PMID: 28873361 DOI: 10.1016/j.jpba.2017.08.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/13/2017] [Indexed: 12/26/2022]
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Mavrakanas TA, Alam A, Reny JL, Fontana P. Platelet reactivity in stable cardiovascular patients with chronic kidney disease. Platelets 2017; 29:455-462. [PMID: 28580812 DOI: 10.1080/09537104.2017.1316485] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The study aimed to evaluate antiplatelet drug responsiveness in stable outpatients with cardiovascular disease and chronic kidney disease (CKD) and examine whether impaired antiplatelet drug responsiveness is associated with worse clinical outcomes in this population. Stable cardiovascular patients (n = 771) were enrolled at least one month after an acute ischemic atherothrombotic event. Antiplatelet drug responsiveness was assessed with specific assays (serum TxA2 for aspirin, the VASP assay for clopidogrel) and other aggregation-based assays using different agonists. All patients were followed until the first occurrence of a major adverse cardiovascular event. The 133 CKD patients were found to have higher activity of von Willebrand factor and higher fibrinogen levels. After a median follow-up of 33 months, 88 events occurred in patients without CKD and 31 events in patients with CKD (5.0 events and 8.7 events per 100 patient years, respectively, HR = 1.75 (95% CI 1.16-2.63; p = 0.008). The prevalence of poor aspirin and clopidogrel responsiveness and high platelet reactivity as assessed with different aggregation-based assays was similar in patients with estimated GFR ≥ 60 ml/min, 45-59 ml/min, and < 45 ml/min. No significant interaction for CKD vs. non-CKD was observed for events occurrence in patients with or without high platelet reactivity on several assays, with the exception of collagen-induced aggregation. In stable cardiovascular patients, CKD is not associated with higher platelet reactivity. Decreased antiplatelet drug responsiveness is not associated with worse clinical outcomes in CKD patients.
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Affiliation(s)
- Thomas A Mavrakanas
- a Nephrology Division , McGill University Health Center , Montreal , Canada.,b Division of General Internal Medicine , Geneva University Hospitals , Geneva , Switzerland
| | - Ahsan Alam
- a Nephrology Division , McGill University Health Center , Montreal , Canada
| | - Jean-Luc Reny
- c Division of Internal Medicine and Rehabilitation , Trois-Chêne, Geneva University Hospitals , Geneva , Switzerland.,d Geneva Platelet Group , Faculty of Medicine , Geneva , Switzerland
| | - Pierre Fontana
- d Geneva Platelet Group , Faculty of Medicine , Geneva , Switzerland.,e Division of Angiology and Hemostasis , Geneva University Hospitals , Geneva , Switzerland
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Abstract
Oral Antiplatelet Drugs (OAD) have a proven track record in the risk reduction of major cardiovascular events in patients with cardiovascular disease and normal kidney function. However, major gaps exist in our understanding of their effects on thrombosis and bleeding in chronic kidney disease (CKD). Clinical practice guidelines are ambiguous about use of such drugs in CKD patients, because patients with moderate to severe CKD were systematically excluded from clinical trials evaluating the efficacy and safety of OAD. Paradoxically, CKD patients are at high risk of thrombosis and major bleeding events. Thus, choosing the right combination of OAD for cardiovascular protection in these patients is challenging. Patients with CKD exhibit high rates of OAD hyporesponsiveness. It is, therefore, imperative to explore the mechanisms responsible for poor response to OAD in CKD patients in order to use these drugs more safely and effectively. This review explores suggested mechanisms of platelet dysfucntion in CKD patients and the available evidence on the efficacy and safety of oral antiplatelet drugs in patients with renal dysfunction.
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Amin AM, Sheau Chin L, Azri Mohamed Noor D, SK Abdul Kader MA, Kah Hay Y, Ibrahim B. The Personalization of Clopidogrel Antiplatelet Therapy: The Role of Integrative Pharmacogenetics and Pharmacometabolomics. Cardiol Res Pract 2017; 2017:8062796. [PMID: 28421156 PMCID: PMC5379098 DOI: 10.1155/2017/8062796] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 02/14/2017] [Indexed: 12/12/2022] Open
Abstract
Dual antiplatelet therapy of aspirin and clopidogrel is pivotal for patients undergoing percutaneous coronary intervention. However, the variable platelets reactivity response to clopidogrel may lead to outcome failure and recurrence of cardiovascular events. Although many genetic and nongenetic factors are known, great portion of clopidogrel variable platelets reactivity remain unexplained which challenges the personalization of clopidogrel therapy. Current methods for clopidogrel personalization include CYP2C19 genotyping, pharmacokinetics, and platelets function testing. However, these methods lack precise prediction of clopidogrel outcome, often leading to insufficient prediction. Pharmacometabolomics which is an approach to identify novel biomarkers of drug response or toxicity in biofluids has been investigated to predict drug response. The advantage of pharmacometabolomics is that it does not only predict the response but also provide extensive information on the metabolic pathways implicated with the response. Integrating pharmacogenetics with pharmacometabolomics can give insight on unknown genetic and nongenetic factors associated with the response. This review aimed to review the literature on factors associated with the variable platelets reactivity response to clopidogrel, as well as appraising current methods for the personalization of clopidogrel therapy. We also aimed to review the literature on using pharmacometabolomics approach to predict drug response, as well as discussing the plausibility of using it to predict clopidogrel outcome.
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Affiliation(s)
- Arwa M. Amin
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Lim Sheau Chin
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | | | | | - Yuen Kah Hay
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Baharudin Ibrahim
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
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Carrero JJ, Varenhorst C, Jensevik K, Szummer K, Lagerqvist B, Evans M, Spaak J, Held C, James S, Jernberg T. Long-term versus short-term dual antiplatelet therapy was similarly associated with a lower risk of death, stroke, or infarction in patients with acute coronary syndrome regardless of underlying kidney disease. Kidney Int 2016; 91:216-226. [PMID: 27865441 DOI: 10.1016/j.kint.2016.09.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 08/25/2016] [Accepted: 09/08/2016] [Indexed: 11/29/2022]
Abstract
Scarce and conflicting evidence exists on whether clopidogrel is effective and whether dual antiplatelet treatment (DAPT) is safe in patients with acute coronary syndrome and chronic kidney disease (CKD). To study this, we performed an observational, prospective, multicenter cohort study of 36,001 patients of the SWEDEHEART registry. The exposure was DAPT prolonged after 3 months versus DAPT stopped at 3 months in consecutive patients with acute coronary syndrome and known serum creatinine. DAPT duration with clopidogrel and aspirin was assessed by dispensed tablets. CKD stages were classified according to estimated glomerular filtration rate (eGFR). Study outcomes were 1) the composite of death, myocardial infarction, or ischemic stroke; 2) bleeding; or 3) the aggregate of these two outcomes within day 111 and 365 from discharge. A longer DAPT duration, as compared with 3-month DAPT, was associated with lower hazard ratios for outcome one in each CKD stratum (eGFR over 60, adjusted hazard ratio [95% confidence interval] 0.76 [0.67-0.85]; eGFR 60 and less, 0.84 [0.73-0.96], of which eGFR between 45 and 60, 0.85 [0.70-1.05], eGFR between 30 and 45, 0.78 [0.62-0.97]; eGFR 30 and less ml/min/1.73 m2, 0.93 [0.70-1.24]. Bleeding (outcome 2) was in general more common in the longer DAPT group of each aforementioned CKD stratum. Aggregated outcome analysis (outcome 3) similarly favored longer DAPT in each stratum. There was no interaction between DAPT duration and CKD strata for any of the study outcomes. Thus, a prolonged as compared with three-month DAPT was similarly associated with a lower risk of death, stroke, or reinfarction regardless of underlying CKD.
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Affiliation(s)
- Juan-Jesus Carrero
- Division of Renal Medicine, Karolinska Institutet, Stockholm, Sweden; Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Christoph Varenhorst
- Department of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden; Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
| | - Karin Jensevik
- Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
| | - Karolina Szummer
- Division of Cardiology, Karolinska Institutet, Stockholm, Sweden
| | - Bo Lagerqvist
- Department of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden; Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
| | - Marie Evans
- Division of Renal Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jonas Spaak
- Department of Clinical Sciences, Danderyd University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Claes Held
- Department of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden; Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
| | - Stefan James
- Department of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden; Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
| | - Tomas Jernberg
- Division of Cardiology, Karolinska Institutet, Stockholm, Sweden
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Impact of chronic kidney disease on platelet inhibition of clopidogrel and prasugrel in Japanese patients. J Cardiol 2016; 69:752-755. [PMID: 27567173 DOI: 10.1016/j.jjcc.2016.07.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 07/15/2016] [Accepted: 07/26/2016] [Indexed: 01/26/2023]
Abstract
BACKGROUND The impact of chronic kidney disease (CKD) on the antiplatelet effect of clopidogrel and low-dose (3.75mg) prasugrel in Japanese patients is largely unknown. METHODS A total of 53 consecutive Japanese patients with stable coronary artery disease who received aspirin and clopidogrel were enrolled, and categorized by estimated glomerular filtration rate (eGFR): CKD group (n=15, eGFR<60ml/min/1.73m2) and non-CKD group (n=38, eGFR≥60ml/min/1.73m2). Clopidogrel was switched to 3.75mg prasugrel. Platelet reactivity measurement using the VerifyNow P2Y12 assay (Accumetrics, San Diego, CA, USA) was performed at baseline (on clopidogrel) and day 14 (on prasugrel). RESULTS The VerifyNow P2Y12 reaction units (PRU) during clopidogrel therapy was significantly higher in the CKD group than that in the non-CKD group (185.2±51.1 PRU vs. 224.3±57.0 PRU, p=0.02), whereas, the PRU with the prasugrel therapy in the CKD group and non-CKD group were not significantly different (149.9±51.1 PRU vs. 165.3±61.8 PRU, p=0.36). The PRU was significantly lower with the prasugrel therapy compared to that with the clopidogrel therapy both in the CKD group and in the non-CKD group. CONCLUSIONS Antiplatelet effect of clopidogrel but not prasugrel is attenuated in patients with CKD. Prasugrel achieves a consistently lower platelet reactivity compared with clopidogrel regardless of the presence of mild to moderate CKD.
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Impaired P2Y12 inhibition by clopidogrel in kidney transplant recipients: results from a cohort study. BMC Nephrol 2016; 17:58. [PMID: 27278793 PMCID: PMC4899921 DOI: 10.1186/s12882-016-0270-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 06/01/2016] [Indexed: 12/04/2022] Open
Abstract
Background Cardiovascular complications represent a major cause of morbidity and mortality for patients who received kidney transplantation (KT). However, the impact of KT and chronic immunosuppression on platelet response to clopidogrel in patients undergoing coronary or peripheral revascularization procedures remains unclear. This cohort study compares platelet responsiveness to clopidogrel as assessed byvasodilator-stimulated phosphoprotein (VASP) phosphorylation. Methods The study population was divided between chronic kidney disease (CKD) patients who underwent KT (n = 36) and non-transplanted CKD patients (control group, n = 126). Patients were on maintenance antiplatelet therapy with clopidogrel 75 mg daily for at least 8 days. The mean platelet reactivity index (PRI) VASP values and the prevalence of high on-treatment platelet reactivity (HPR, defined as PRI VASP ≥61 %) were compared. Results The mean PRI VASP value was significantly higher in the transplant group (60.1 ± 3 vs 51.2 ± 1.6 %; p=0.014). HPR was significantly more common in the transplant group on clopidogrel maintenance therapy (58 vs. 31 %; p = 0.011). KT was the only independent predictor of HPR (odds ratio: 2.6; 95 % confidence interval: 1.03–6.27, p = 0.03). The effect of treatment with calcineurin inhibitors on clopidogrel response could not be analyzed separately from the kidney transplant status. Conclusions KT is associated with an increased prevalence of HPR. Our results suggest that plateletfunction tests may be clinically useful for the management of this specific population.
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Jain N, Reilly RF. Oral P2Y12Receptor Inhibitors in Hemodialysis Patients Undergoing Percutaneous Coronary Interventions: Current Knowledge and Future Directions. Semin Dial 2016; 29:374-81. [DOI: 10.1111/sdi.12484] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Nishank Jain
- Kidney Institute; University of Kansas Medical Center; Kansas City Kansas
| | - Robert F. Reilly
- Division of Nephrology; Medical Service; Veterans Affairs North Texas Health Care System; Dallas Texas
- Division of Nephrology; Department of Medicine; University of Texas Southwestern Medical Center; Dallas Texas
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Barbieri L, Pergolini P, Verdoia M, Rolla R, Nardin M, Marino P, Bellomo G, Suryapranata H, De Luca G. Platelet reactivity in patients with impaired renal function receiving dual antiplatelet therapy with clopidogrel or ticagrelor. Vascul Pharmacol 2016; 79:11-15. [DOI: 10.1016/j.vph.2015.10.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 10/19/2015] [Accepted: 10/24/2015] [Indexed: 01/16/2023]
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Ohno Y, Okada S, Kitahara H, Nishi T, Nakayama T, Fujimoto Y, Kobayashi Y. Repetitive stent thrombosis in a patient who had resistance to both clopidogrel and prasugrel. J Cardiol Cases 2016; 13:139-142. [PMID: 30546628 DOI: 10.1016/j.jccase.2016.01.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 12/18/2015] [Accepted: 01/06/2016] [Indexed: 10/22/2022] Open
Abstract
Clopidogrel resistance is associated with stent thrombosis. Prasugrel achieves greater platelet inhibition with less variability among patients than does clopidogrel. Thus, a patient who had stent thrombosis due to clopidogrel resistance may receive prasugrel to prevent repeated episodes of stent thrombosis. This case report describes a case of repetitive stent thrombosis in which resistance not only to clopidogrel, but also to prasugrel, was observed. <Learning objective: In the face of clopidogrel resistance, prescribing prasugrel may be an acceptable treatment option. However, cross-unresponsiveness may be observed between clopidogrel and prasugrel. Thus, platelet function assay should be performed in patients with stent thrombosis, even when clopidogrel is replaced with prasugrel.>.
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Affiliation(s)
- Yuji Ohno
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Sho Okada
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Hideki Kitahara
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Takeshi Nishi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Takashi Nakayama
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yoshihide Fujimoto
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
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Polzin A, Dannenberg L, Sansone R, Levkau B, Kelm M, Hohlfeld T, Zeus T. Antiplatelet effects of aspirin in chronic kidney disease patients. J Thromb Haemost 2016; 14:375-80. [PMID: 26644261 DOI: 10.1111/jth.13211] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 11/24/2015] [Indexed: 12/21/2022]
Abstract
UNLABELLED ESSENTIALS: Chronic kidney disease (CKD) patients have a high risk of cardiovascular events. A pharmacodynamic evaluation of the effects of aspirin in 116 patients was carried out. The antiplatelet effects of aspirin are associated with impaired renal function. The optimal antithrombotic regimen in CKD patients must be investigated on a larger scale. BACKGROUND The pharmacodynamic response to aspirin varies significantly between individuals. Insufficient antiplatelet effects of aspirin are associated with increased risk of ischemic events. Chronic kidney disease (CKD) is suggested to affect the pharmacodynamic response to antiplatelet medication. High on-treatment platelet reactivity (HTPR) to clopidogrel has been reported to partially account for the enhanced risk of death and cardiovascular events in CKD patients. Objective To investigate the antiplatelet effects of aspirin in patients with CKD. METHODS We conducted a cross-sectional study in 116 patients on permanent aspirin medication. The pharmacodynamic response to aspirin was determined by arachidonic acid-induced thromboxane formation. RESULTS HTPR to aspirin was more frequent in patients with impaired renal function (47% vs. 22%; odds ratio, 3.16; 95% confidence interval [CI], 1.34-7.41; P = 0.008). The pharmacodynamic response to aspirin was impaired in patients with moderate/severe CKD (92; interquartile range [IQR], 282 ng mL(-1) ) as compared to patients with normal/mildly reduced renal function (36; IQR, 100 ng mL(-1) ; difference in medians, 57; CI, 5-110 ng mL(-1) ; P = 0.013). Bivariate Pearson analysis showed residual thromboxane formation to be correlated with glomerular filtration rate (R = -0.303; R(2) = 0.092; P = 0.001). Patients with CKD were older and more frequently female. Multivariate linear regression analysis revealed that the correlation was independent of age (R = -0.314; R(2) = 0.082; P = 0.002) and gender (R = -0.305; R(2) = 0.077; P = 0.006). CONCLUSION Renal function is correlated with pharmacodynamic response to aspirin. Patients with CKD have an increased risk of impaired antiplatelet effects of aspirin. Larger trials are needed to assess the clinical impact of this finding and investigate the optimal antithrombotic regimen in CKD patients.
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Affiliation(s)
- A Polzin
- Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich Heine University Medical Center Dusseldorf, Dusseldorf, Germany
| | - L Dannenberg
- Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich Heine University Medical Center Dusseldorf, Dusseldorf, Germany
| | - R Sansone
- Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich Heine University Medical Center Dusseldorf, Dusseldorf, Germany
| | - B Levkau
- Institute of Pathophysiology, West German Heart and Vascular Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - M Kelm
- Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich Heine University Medical Center Dusseldorf, Dusseldorf, Germany
| | - T Hohlfeld
- Institute for Pharmacology and Clinical Pharmacology, Heinrich Heine University, Dusseldorf, Germany
| | - T Zeus
- Division of Cardiology, Pulmonology and Vascular Medicine, Heinrich Heine University Medical Center Dusseldorf, Dusseldorf, Germany
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Ratcovich H, Holmvang L, Johansson PI, Parup Dridi N. Traditional clinical risk factors predict clopidogrel hypo-responsiveness in unselected patients undergoing non-emergent percutaneous coronary intervention. Platelets 2015; 27:51-8. [DOI: 10.3109/09537104.2015.1029899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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37
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Tanios BY, Itani HS, Zimmerman DL. Clopidogrel Use in End-Stage Kidney Disease. Semin Dial 2014; 28:276-81. [DOI: 10.1111/sdi.12338] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Bassem Y. Tanios
- Nephrology Department; Paris Sud University; Le Kremlin Bicêtre France
| | - Houssam S. Itani
- Division of Nephrology; Department of Medicine; University of Ottawa; Ottawa Hospital; Ottawa Ontario Canada
| | - Deborah L. Zimmerman
- Division of Nephrology; Department of Medicine; University of Ottawa; Ottawa Hospital; Ottawa Ontario Canada
- Kidney Research Centre of the Ottawa Hospital Research Institute; Ottawa Ontario Canada
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Davila CD, Vargas F, Huang KHG, Monaco T, Dimou A, Rangaswami J, Figueredo VM. Dipstick proteinuria is an independent predictor of high on treatment platelet reactivity in patients on clopidogrel, but not aspirin, admitted for major adverse cardiovascular events. Platelets 2014; 26:651-6. [PMID: 25354134 DOI: 10.3109/09537104.2014.971000] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The effectiveness of aspirin and clopidogrel in patients with chronic kidney disease (CKD) suffering from acute cardiovascular events is unclear. High on treatment platelet reactivity (HTPR) has been associated with worse outcomes. Here, we assessed the association of dipstick proteinuria (DP) and renal function on HTPR and clinical outcomes. Retrospective cohort analysis of 261 consecutive, non-dialysis patients admitted for Major Adverse Cardiovascular Events (MACE) that had VerifyNow P2Y12 and VerifyNow Aspirin assays performed. HTPR was defined as P2Y12 reactivity unit (PRU) > 208 for clopidogrel and aspirin reaction units (ARU) > 550 for aspirin. Renal function was classified based on the estimated glomerular filtration rate (eGFR), and dipstick proteinuria was defined as ≥ 30 mg/dl of albumin detected on a spot analysis. All cause mortality, readmissions, and cardiac catheterizations were reviewed over 520 days. In patients on clopidogrel (n = 106), DP was associated with HTPR, independent of eGFR, diabetes mellitus, smoking or use of proton pump inhibitor (AOR = 4.76, p = 0.03). In patients with acute coronary syndromes, HTPR was associated with more cardiac catheterizations (p = 0.009) and readmissions (p = 0.032), but no differences in in-stent thrombosis or re-stenosis were noted in this cohort. In patients on aspirin (n = 155), no associations were seen between DP and HTPR. However, all cause mortality was significantly higher with HTPR in this group (p = 0.038). In this cohort, DP is an independent predictor of HTPR in patients on clopidogrel, but not aspirin, admitted to the hospital for MACE.
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Affiliation(s)
- Carlos D Davila
- a Department of Medicine , Einstein Medical Center , Philadelphia , PA , USA
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Bae JP, Candrilli SD, Fortenberry J, Meyers JL, Jakubowski JA, Drenning D. Point-of-care platelet reactivity determination with VerifyNow-P2Y12 following administration of clopidogrel or prasugrel: data from a real-world, clinical care inpatient setting. Hosp Pract (1995) 2014; 42:7-15. [PMID: 25502126 DOI: 10.3810/hp.2014.10.1139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVES To describe VerifyNow-P2Y12 (VN-P2Y12, Accumetrics, San Diego, CA) results from patients treated with either clopidogrel or prasugrel who were seeking care in a hospital setting. BACKGROUND VN-P2Y12 is a point-of-care device that measures platelet reactivity to adenosine diphosphate. Past assessments of thienopyridine therapy utilizing VN-P2Y12 have largely come from clinical trial settings. There are limited data from real-world settings. METHODS Electronic medical record data from Huntsville Hospital (Huntsville, AL) for those who underwent VN-P2Y12 testing for clopidogrel or prasugrel between January 1, 2009 and October 31, 2010 were analyzed. The VN-P2Y12 data included P2Y12 reaction units (PRUs) and device-reported percentage of inhibition. Descriptive analyses were conducted with t tests, and a logistic regression model was estimated to assess the association between patient characteristics and the likelihood of platelet nonresponse. RESULTS In total, 2882 tests (2476 with clopidogrel and 406 with prasugrel) were analyzed. For clopidogrel and prasugrel, respectively, mean PRU standard deviation (SD) was 206 (90) and 107 (93; P < 0.0001) and mean % inhibition (SD) was 31% (26%) and 63% (31%; P < 0.0001). Treatment with clopidogrel alone (odds ratio [OR] = 5.25; P < 0.0001), being non-Caucasian (OR = 1.48; P = 0.0440), obese (OR = 1.49; P = 0.0010), anemic (OR = 3.29; P < 0.0001), diabetic (OR = 1.75; P < 0.0001), and having a history of myocardial infarction (OR = 1.57; P < 0.0001) were significant predictors of having PRU ≥ 235. CONCLUSION This real-world data analysis shows results that are consistent with clinical trial results, namely that compared with clopidogrel, prasugrel is associated with significantly lower PRU and greater percentage of inhibition, regardless of age, race, gender, diabetes, obesity, or proton pump inhibitor use.
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Liang J, Wang Z, Shi D, Liu Y, Zhao Y, Han H, Li Y, Liu W, Zhang L, Yang L, Zhou Y. High clopidogrel dose in patients with chronic kidney disease having clopidogrel resistance after percutaneous coronary intervention. Angiology 2014; 66:319-25. [PMID: 24913197 DOI: 10.1177/0003319714538804] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We evaluated the impact of clopidogrel 150 mg/d in patients with chronic kidney disease (CKD) having clopidogrel resistance (CR) after percutaneous coronary intervention (PCI); 1076 consecutive patients with coronary artery disease (CAD) having CKD were enrolled. Maximal platelet aggregation (MPA) was assessed before, 24 hours, and 30 days after a 300-mg loading dose of clopidogrel prior to PCI. After PCI, 370 patients with CR were randomized to receive clopidogrel 75 mg/d (n = 184) or 150 mg/d (n = 186) for 30 days. Stent thrombosis (ST), major adverse cardiac events (MACEs), and bleeding were analyzed after 1 month. Patients in the 150 mg group had significant lower rates of ST and MACE. There was no significant difference in major or minor bleeding. Patients in the 150 mg group had lower MPA and greater inhibition of platelet aggregation. One-month administration of 150 mg/d of clopidogrel decreases the rate of ST and MACE without increasing bleeding in patients with CKD having CR after PCI.
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Affiliation(s)
- Jing Liang
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Zhijian Wang
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Dongmei Shi
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yuyang Liu
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yingxin Zhao
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Hongya Han
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yueping Li
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Wei Liu
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Linlin Zhang
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Lixia Yang
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yujie Zhou
- Department of Cardiology, Anzhen Hospital, Capital Medical University, Beijing, China
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Spiliopoulos S, Kassimis G, Hatzidakis A, Krokidis M. High on-treatment platelet reactivity in peripheral endovascular procedures. Cardiovasc Intervent Radiol 2014; 37:559-71. [PMID: 23897511 DOI: 10.1007/s00270-013-0707-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 07/10/2013] [Indexed: 02/05/2023]
Abstract
The use of aspirin is considered the "gold standard" for the decrease of major adverse cardiovascular events in patients with atherosclerosis, including peripheral arterial disease (PAD), whereas a dual-antiplatelet regimen with aspirin and clopidogrel is usually indicated for such patients after angioplasty and stent deployment. However, a substantial number of subsequent adverse events still occur, even in patients who receive double-antiplatelet therapy. The "high on-treatment platelet reactivity" (HTPR) phenomenon has been lately recognized and plays a major role in the management of patients with PAD. Greater and more rapid inhibition of platelet aggregation has become the goal for new antiplatelet agents with the expectation of further improving outcomes for percutaneous intervention for PAD. The purpose of this review article is to highlight current evidence regarding the prevalence, aetiology, and clinical implications of HTPR in PAD as well as to discuss the possibilities of novel alternative antiplatelet regiments.
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Impact of chronic kidney disease on platelet reactivity and outcomes of patients receiving clopidogrel and undergoing percutaneous coronary intervention. Am J Cardiol 2014; 113:1124-9. [PMID: 24507863 DOI: 10.1016/j.amjcard.2013.12.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 12/16/2013] [Accepted: 12/16/2013] [Indexed: 01/09/2023]
Abstract
The impact of chronic kidney disease (CKD) on residual platelet reactivity (PR) in patients undergoing percutaneous coronary intervention (PCI) is still debatable. We sought to investigate the interaction between PR and renal function and the related clinical outcomes in patients with coronary artery disease treated with PCI. Immediately before PCI, we measured PR (as P2Y12 reaction units [PRUs]) in 800 patients on clopidogrel with the VerifyNow P2Y12 assay. High PR was defined as a PRU value of ≥240 and low PR as a PRU value of ≤178. Based on a glomerular filtration rate of < or ≥60 ml/min/1.73 m2, patients were respectively grouped into those with or without moderate-to-severe CKD. Primary end point was the incidence of 30-day net adverse clinical events (NACEs). Patients with moderate-to-severe CKD (n=173, 21.6%) and those without showed similar PRU values (208±67 vs 207±75, p=0.819). Yet, NACEs were significantly higher in patients with moderate-to-severe CKD (19.7% vs 9.1%, p<0.001), in terms of both ischemic (12.1% vs 7.2%, p=0.036) and bleeding events (8.7% vs 2.1%, p<0.001). NACEs were significantly higher when moderate-to-severe CKD was associated with either high PR or low PR (25.4%, p for trend<0.001); this association was the strongest predictor of NACE at multivariate analysis (odds ratio 3.4, 95% confidence interval 2.0 to 5.6, p<0.001). In conclusion, we did not find an association between moderate-to-severe CKD and residual PR on clopidogrel. However, the association of moderate-to-severe CKD with either high or low PR was a strong determinant of adverse events after PCI.
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Association of P2Y12 gene promoter DNA methylation with the risk of clopidogrel resistance in coronary artery disease patients. BIOMED RESEARCH INTERNATIONAL 2014; 2014:450814. [PMID: 24745016 PMCID: PMC3976931 DOI: 10.1155/2014/450814] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 02/10/2014] [Accepted: 02/10/2014] [Indexed: 02/06/2023]
Abstract
Background. Clopidogrel inhibits the ADP receptor P2Y12 to keep down the platelet aggregation. The goal of our study is to investigate the contribution of P2Y12 promoter DNA methylation to the risk of clopidogrel resistance (CR). Methods. The platelet functions were measured by the VerifyNow P2Y12 assay. Applying the bisulfite pyrosequencing technology, DNA methylation levels of two CpG dinucleotides on P2Y12 promoter were tested among 49 CR cases and 57 non-CR controls. We also investigated the association among P2Y12 DNA methylation, various biochemical characteristics, and CR. Result. Lower methylation of two CpGs indicated the poorer clopidogrel response (CpG1, P = 0.009; CpG2, P = 0.022) in alcohol abusing status. Meanwhile CpG1 methylation was inversely correlated with CR in smoking patients (P = 0.026) and in subgroup of Albumin < 35 (P = 0.002). We observed that the level of DNA methylation might be affected by some clinical markers, such as TBIL, LEVF, Albumin, AST. The results also showed that the quantity of stent, fasting blood-glucose, and lower HbAC1 were the predictors of CR. Conclusions. The evidence from our study indicates that P2Y12 methylation may bring new hints to elaborate the pathogenesis of CR.
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Maruyama H, Fukuoka T, Deguchi I, Ohe Y, Kato Y, Horiuchi Y, Hayashi T, Nagamine Y, Sano H, Tanahashi N. Response to clopidogrel and its association with chronic kidney disease in noncardiogenic ischemic stroke patients. Intern Med 2014; 53:215-9. [PMID: 24492689 DOI: 10.2169/internalmedicine.53.1316] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Noncardiogenic ischemic stroke patients with chronic kidney disease (CKD) are known to have a greater rate of ischemic stroke recurrence than those without. Although clopidogrel is often used to prevent the recurrence of noncardiogenic ischemic stroke, the relationship between the response to clopidogrel and CKD is unclear. In the present study, the relationship between the response to clopidogrel and the presence of CKD was investigated in noncardiogenic ischemic stroke patients. METHODS A total of 129 noncardiogenic ischemic stroke patients receiving 75 mg/day of clopidogrel for ≥1 week were evaluated. The VerifyNow P2Y12 Assay was used to measure the level of platelet aggregation induced by 20 μM of adenosine diphosphate, and the degree of platelet aggregation and frequency of clopidogrel resistance were compared between 34 patients with CKD and 95 patients without CKD. Clopidogrel resistance was defined as a P2Y12 Reaction Units (PRU) value of >230 and/or % inhibition <20%. RESULTS The PRU value was 201.9±91.3 in the patients with CKD and 163.3±86.4 in the patients without CKD (p=0.035). The frequency of a PRU value of >230 was 44.1% (15 patients) among the patients with CKD and 17.9% (17 patients) among those without CKD (p=0.002). The percent inhibition was 29.9%±28.1% among the patients with CKD and 41.1%±28.0% among the patients without CKD (p=0.030). The frequency of % inhibition <20% was 47.1% (16 patients) among the patients with CKD and 26.3% (25 patients) among those without CKD (p=0.026). CONCLUSION The present study showed that noncardiogenic ischemic stroke patients with CKD have a greater frequency of clopidogrel resistance, thus suggesting that the response to clopidogrel is diminished in these patients.
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Affiliation(s)
- Hajime Maruyama
- Department of Neurology and Cerebrovascular Medicine, Saitama Medical University International Medical Center, Japan
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Pastromas G, Spiliopoulos S, Katsanos K, Diamantopoulos A, Kitrou P, Karnabatidis D, Siablis D. Clopidogrel responsiveness in patients undergoing peripheral angioplasty. Cardiovasc Intervent Radiol 2013; 36:1493-1499. [PMID: 23408060 DOI: 10.1007/s00270-013-0577-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 01/12/2013] [Indexed: 02/05/2023]
Abstract
PURPOSE To investigate the incidence and clinical significance of platelet responsiveness in patients receiving clopidogrel after peripheral angioplasty procedures. MATERIALS AND METHODS This prospective study included patients receiving antiplatelet therapy with clopidogrel 75 mg after infrainguinal angioplasty or stenting and who presented to our department during routine follow-up. Clopidogrel responsiveness was tested using the VerifyNow P2Y12 Assay. Patients with residual platelet reactivity units (PRU) ≥ 235 were considered as nonresponders (NR group NR), whereas patients with PRU < 235 were considered as normal (responders [group R]). Primary end points were incidence of resistance to clopidogrel and target limb reintervention (TLR)-free survival, whereas secondary end points included limb salvage rates and the identification of any independent predictors influencing clinical outcomes. RESULTS In total, 113 consecutive patients (mean age 69 ± 8 years) with 139 limbs were enrolled. After clopidogrel responsiveness analysis, 61 patients (53.9 %) with 73 limbs (52.5 %) were assigned to group R and 52 patients (46.1 %) with 66 limbs (47.5 %) to group NR. Mean follow-up interval was 27.7 ± 22.9 months (range 3-95). Diabetes mellitus, critical limb ischemia, and renal disease were associated with clopidogrel resistance (Fisher's exact test; p < 0.05). According to Kaplan-Meier analysis, TLR-free survival was significantly superior in group R compared with group NR (20.7 vs. 1.9 %, respectively, at 7-year follow-up; p = 0.001), whereas resistance to clopidogrel was identified as the only independent predictor of decreased TLR-free survival (hazard rate 0.536, 95 % confidence interval 0.31-0.90; p = 0.01). Cumulative TLR rate was significantly increased in group NR compared with group R (71.2 % [52 of 73] vs. 31.8 % [21 of 66], respectively; p < 0.001). Limb salvage was similar in both groups. CONCLUSION Clopidogrel resistance was related with significantly more repeat interventions after peripheral angioplasty procedures.
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Affiliation(s)
- Georgios Pastromas
- Department of Interventional Radiology, Patras University Hospital, 26500, Patras, Greece.
| | - Stavros Spiliopoulos
- Department of Interventional Radiology, Patras University Hospital, 26500, Patras, Greece
| | - Konstantinos Katsanos
- Department of Interventional Radiology, Patras University Hospital, 26500, Patras, Greece
| | | | - Panagiotis Kitrou
- Department of Interventional Radiology, Patras University Hospital, 26500, Patras, Greece
| | - Dimitrios Karnabatidis
- Department of Interventional Radiology, Patras University Hospital, 26500, Patras, Greece
| | - Dimitrios Siablis
- Department of Interventional Radiology, Patras University Hospital, 26500, Patras, Greece
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Chronic kidney disease is associated with increased platelet activation and poor response to antiplatelet therapy. Nephrol Dial Transplant 2013; 28:2116-22. [DOI: 10.1093/ndt/gft103] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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Morel O, Muller C, Jesel L, Moulin B, Hannedouche T. Impaired platelet P2Y12 inhibition by thienopyridines in chronic kidney disease: mechanisms, clinical relevance and pharmacological options. Nephrol Dial Transplant 2013; 28:1994-2002. [DOI: 10.1093/ndt/gft027] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sherman RA. Briefly Noted. Semin Dial 2012. [DOI: 10.1111/j.1525-139x.2012.12019.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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