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Al-Salihi MM, Saha R, Gillani SA, Al-Jebur MS, Al-Salihi Y, Roy A, Dalal SS, Saleh A, Siddiq F, Ayyad A, Qureshi AI. Ticagrelor Versus Clopidogrel in Endovascular Therapy for Cerebral Aneurysms: A Systematic Review and Meta-Analysis. World Neurosurg 2024; 184:310-321.e5. [PMID: 38342169 DOI: 10.1016/j.wneu.2024.02.013] [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: 12/26/2023] [Accepted: 02/03/2024] [Indexed: 02/13/2024]
Abstract
BACKGROUND Antiplatelet therapy is pivotal in endovascular treatment for intracranial aneurysms. However, there is a lack of studies comparing ticagrelor to clopidogrel in patients with aneurysms undergoing endovascular therapy. Additionally, the existing literature lacks adequate sample size, significant subgrouping, and follow-up, making our study important to cover these gaps. METHODS We searched 5 databases to collect all relevant studies. Categorical outcomes were pooled as relative risk (R.R.) with a 95% confidence interval (CI). In the single-arm meta-analysis, outcomes were pooled as proportions and their corresponding 95% CI. RESULTS This comprehensive analysis of 18 studies involving 2,427 patients. For thromboembolic events, the pooled (R.R.) did not show significant differences, whether considering overall events. A similar pattern was observed for thromboembolic events stratified by aneurysmal rupture status, with no significant differences in overall events. Hemorrhagic events did not also exhibit significant differences in previously mentioned stratifications. Furthermore, there were no substantial differences in death and mRS (0-2) on discharge between Ticagrelor and Clopidogrel. Single-arm meta-analyses for Ticagrelor demonstrated low rates of thromboembolic events, hemorrhage, death, and favorable mRS scores, with associated confidence intervals (CIs). Main line of endovascular treatment did not significantly affect either thromboembolic or hemorrhagic outcomes with Ticagrelor and Clopidogrel. CONCLUSIONS We found no significant differences in key outcomes like thromboembolic events, hemorrhagic events, mortality rates, and favorable mRS (0-2) upon discharge in the studied patients between Ticagrelor and Clopidogrel. Moreover, the single-arm meta-analysis for Ticagrelor revealed low rates of thromboembolic events, hemorrhage, mortality, and high rates of favorable mRS scores.
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Affiliation(s)
- Mohammed Maan Al-Salihi
- Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, USA.
| | - Ram Saha
- Department of Neurology, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Syed A Gillani
- Zeenat Qureshi Stroke Institute, University of Missouri, Columbia, Missouri, USA
| | | | | | - Anil Roy
- Department of Neurosurgery, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Shamser Singh Dalal
- Department of Radiology, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Ahmed Saleh
- Department of Neurosurgery, Hamad General Hospital, Doha, Qatar
| | - Farhan Siddiq
- Department of Neurosurgery, University of Missouri, Columbia, Missouri, USA
| | - Ali Ayyad
- Department of Neurosurgery, Hamad General Hospital, Doha, Qatar
| | - Adnan I Qureshi
- Zeenat Qureshi Stroke Institute, University of Missouri, Columbia, Missouri, USA
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Ortega-Paz L, Giordano S, Franchi F, Rollini F, Pollack CV, Bhatt DL, Angiolillo DJ. Clinical and Pre-Clinical Pharmacokinetics and Pharmacodynamics of Bentracimab. Clin Pharmacokinet 2023; 62:673-692. [PMID: 37118383 DOI: 10.1007/s40262-023-01245-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2023] [Indexed: 04/30/2023]
Abstract
Antiplatelet agents are among the most frequently used medications in cardiovascular medicine. Although in patients with atherosclerotic disease manifestations, in particular those treated by percutaneous coronary intervention, antiplatelet agents are beneficial for the prevention of ischemic events, they inevitably increase the risk of bleeding. Furthermore, 5-15% of patients treated by percutaneous coronary intervention may need a surgical procedure within 2 years, creating challenges to safe and effective antiplatelet drug management. Importantly, major spontaneous or procedural-related bleedings are associated with increased hospital admission, length, costs, and poor prognosis. Although the effects of other antithrombotic therapies, such as direct oral anticoagulants, can be reversed by approved specific agents, there are no approved reversal agents for any antiplatelet drugs. The fact that many antiplatelet agents, such as aspirin and thienopyridines (i.e., clopidogrel and prasugrel), bind irreversibly to their targets represents a challenge for the development of a drug-specific reversal agent. In contrast, ticagrelor is a non-thienopyridine with a plasma half-life of 7-9 h that reversely binds the P2Y12 receptor producing potent signaling blockage. In 2015, bentracimab (also known as PB2452 or MEDI2452), a neutralizing monoclonal antibody fragment that binds free plasma ticagrelor and its major active metabolite, was identified. This systematic overview provides a comprehensive summary of the drug development program of bentracimab, focusing on its pharmacodynamic, pharmacokinetic, and safety profiles.
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Affiliation(s)
- Luis Ortega-Paz
- Division of Cardiology, University of Florida College of Medicine, ACC Building 5th Floor, 655 West 8th Street, Jacksonville, FL, 32209, USA
| | - Salvatore Giordano
- Division of Cardiology, University of Florida College of Medicine, ACC Building 5th Floor, 655 West 8th Street, Jacksonville, FL, 32209, USA
- Division of Cardiology, Department of Medical and Surgical Sciences, "Magna Graecia" University, Catanzaro, Italy
| | - Francesco Franchi
- Division of Cardiology, University of Florida College of Medicine, ACC Building 5th Floor, 655 West 8th Street, Jacksonville, FL, 32209, USA
| | - Fabiana Rollini
- Division of Cardiology, University of Florida College of Medicine, ACC Building 5th Floor, 655 West 8th Street, Jacksonville, FL, 32209, USA
| | - Charles V Pollack
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, MI, USA
| | - Deepak L Bhatt
- Mount Sinai Heart, Icahn School of Medicine at Mount Sinai Health System, New York, NY, USA
| | - Dominick J Angiolillo
- Division of Cardiology, University of Florida College of Medicine, ACC Building 5th Floor, 655 West 8th Street, Jacksonville, FL, 32209, USA.
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Ticagrelor versus clopidogrel dual antiplatelet therapy for unruptured intracranial aneurysms treated with flowdiverter. J Neuroradiol 2023; 50:346-351. [PMID: 36642161 DOI: 10.1016/j.neurad.2022.11.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 10/27/2022] [Accepted: 11/22/2022] [Indexed: 01/15/2023]
Abstract
BACKGROUND AND PURPOSE Antiplatelet therapy (APT) is a key element limiting the risk of thromboembolic events (TEE) in neuroendovascular procedures, including aneurysm treatment with flowdiverter. Clopidogrel combined with aspirin is the mostly reported dual APT (DAPT). However, resistance phenomenon and intraindividual efficacy fluctuation are identified limitations. In recent years, ticagrelor has been increasingly used in this indication. We compared these two DAPT regimens for intracranial aneurysm treated with flowdiverter. METHODS We conducted a multicentric retrospective study from prospectively maintained databases in two high volume centers extracting consecutive patients presenting unruptured intracranial aneurysm treated with flowdiverter and receiving DAPT (May 2015 to December 2019). Two groups were compared according to their DAPT regimen: "ticagrelor+aspirin" and "clopidogrel+aspirin". Clopidogrel group was systematically checked with platelet test inhibition before endovascular procedure. The primary endpoint was composite, defined as any thrombo-embolic event (TEE) or major hemorrhagic event occurring the first 6 months during and after embolization RESULTS: 260 patients met our inclusion criteria. Baseline patients and aneurysms characteristics were comparable between groups, except for aneurysm location, median size and pre-treatment modified Rankin scale. No significant difference was observed regarding the primary composite outcome: 11.5% (12/104) in the ticagrelor group versus 10.9% (17/156) in the clopidogrel group (p = 1.000). There was also no significant difference in secondary outcomes including TEE (10.5 vs 9.0%; p = 0.673), major hemorrhage (0.9 vs 1.2%; p = 0.651) and clinical outcome (at least 1-point mRS worsening during follow up: 6.7% vs 8.3%; p = 0.813). CONCLUSION First-line DAPT with ticagrelor+aspirin seems as safe and effective as clopidogrel+aspirin regimen.
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Jackson R, Trus RM, El-Diasty M. Hemadsorption for removal of ticagrelor and direct oral anticoagulants in cardiac surgery. Expert Rev Cardiovasc Ther 2022; 20:141-150. [PMID: 35179425 DOI: 10.1080/14779072.2022.2044306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Cardiac patients on antiplatelets or oral anticoagulation undergoing emergent cardiac surgery without appropriate washout periods are at increased risk for developing perioperative bleeding. CytoSorb is a commercially available hemadsorption filter that can simultaneously remove a wide range of substances including ticagrelor, and direct oral anticoagulants (DOACs). Areas covered: Although CytoSorb has been used to remove various protein-bound substances, this review will specifically evaluate and review current evidence for applying CytoSorb in removing ticagrelor and DOACs using 4 in vivo studies, 3 case reports, one retrospective clinical study and 2 cost analysis studies. Based on limited evidence, CytoSorb may be effective in reducing perioperative bleeding as demonstrated by reducing chest tube output, blood product transfusions, and re-thoracotomy rates. CytoSorb can also reduce length of intensive care unit (ICU) and hospital stay. Although, CytoSorb has an initial upfront cost, it was proven to be cost effective due to potential health resource savings on both short- and long-term projections.Expert Commentary: CytoSorb provides a novel strategy to remove ticagrelor and DOACs in patients requiring emergency cardiac surgery. Although promising results, more solid evidence is required to establish its clinical effectiveness in reducing perioperative bleeding, bleeding-related complications, mortality, and finally, its overall safety.
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Affiliation(s)
- Robyn Jackson
- Department of Cardiology, Queen's University, Ontario, Canada
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5
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Laurent D, Dodd WS, Small C, Gooch MR, Ghosh R, Goutnik M, Blatt T, Porche K, Geh N, Adamczak S, Polifka AJ, Brzezicki G, Hoh B, Chalouhi N. Ticagrelor resistance: a case series and algorithm for management of non-responders. J Neurointerv Surg 2021; 14:179-183. [PMID: 34215660 DOI: 10.1136/neurintsurg-2021-017638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 06/22/2021] [Indexed: 02/04/2023]
Abstract
The placement of cervical and intracranial stents requires the administration of antiplatelet drugs to prevent thromboembolic complications. Ticagrelor has emerged as the most widely used alternative in clopidogrel non-responders owing to its potent antiplatelet effects. Because ticagrelor does not require hepatic activation, many neurointerventionalists choose to forgo laboratory testing of platelet inhibition. In rare instances, patients may not achieve adequate platelet inhibition following ticagrelor administration. In this paper we review the mechanism of action of ticagrelor and its use in cerebrovascular procedures. We present two cases of ticagrelor non-responsiveness from two high-volume cerebrovascular centers, discuss their management, and propose an algorithm for managing ticagrelor non-responsiveness.
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Affiliation(s)
- Dimitri Laurent
- Lillian S Wells Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - William S Dodd
- Lillian S Wells Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - Coulter Small
- Lillian S Wells Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - M Reid Gooch
- Neurosurgery, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania, USA
| | - Ritam Ghosh
- Neurosurgery, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania, USA
| | - Michael Goutnik
- Lillian S Wells Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | | | - Ken Porche
- Lillian S Wells Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - Ndi Geh
- Lillian S Wells Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - Stephanie Adamczak
- Lillian S Wells Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - Adam J Polifka
- Lillian S Wells Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - Grzegorz Brzezicki
- Department of Neurosurgery, University of Florida College of Medicine - Jacksonville, Jacksonville, Florida, USA
| | - Brian Hoh
- Lillian S Wells Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - Nohra Chalouhi
- Lillian S Wells Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
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Makhdoum A, Dhingra NK, Kirubaharan A, Eikelboom R, Luc J, Dagher O, Bierer J, Cartier A, Vaillancourt O, Vo TX, Forgie K, Bisleri G, Yau TM, Verma S, Yanagawa B. Ticagrelor use and practice patterns among Canadian cardiac surgeons. J Card Surg 2021; 36:2793-2801. [PMID: 34028081 DOI: 10.1111/jocs.15636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 04/19/2021] [Accepted: 04/27/2021] [Indexed: 01/30/2023]
Abstract
BACKGROUND AND AIM The P2Y12 platelet receptor inhibitor ticagrelor is widely used in patients following acute coronary syndromes or in those who have received coronary stents. Bentracimab is a monoclonal antibody-based reversal agent that is being formally evaluated in a Phase 3 clinical trial. Here, we probe the knowledge, attitudes, and practice patterns of cardiac surgeons regarding their perioperative management of ticagrelor and potential application of a ticagrelor reversal agent. METHODS A questionnaire was developed by a working group of cardiac surgeons to inquire into participants' practices and beliefs regarding ticagrelor and disseminated to practicing, Canadian-trained cardiac surgeons. RESULTS A total of 70 Canadian-trained cardiac surgeons participated. Bleeding risk was identified as the most significant consideration when surgically revascularizing ticagrelor-treated patients (90%). There is variability in the duration of withholding ticagrelor before coronary artery bypass graft procedure in a stable patient; 44.3% wait 3 days and 32.9% wait 4 days or longer. Currently, 15.7% of cardiac surgeons prophylactically give platelet transfusions and fresh frozen plasma intraoperatively following protamine infusion in patients who have recently received ticagrelor. Interestingly, 47.1% of surveyed surgeons were aware of a reversal agent for ticagrelor, 91.4% of cardiac surgeons would consider utilizing a ticagrelor reversal agent if available, and 51.4% acknowledged that the introduction of such an agent would be a major advance in clinical practice. CONCLUSIONS The present survey identified ticagrelor-related bleeding as a major concern for cardiac surgeons. Surgeons recognized the significant unmet need that a ticagrelor reversal agent would address.
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Affiliation(s)
- Ahmad Makhdoum
- Divisions of Cardiac Surgery, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - Nitish K Dhingra
- Divisions of Cardiac Surgery, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - Aathmika Kirubaharan
- Divisions of Cardiac Surgery, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - Rachel Eikelboom
- Section of Cardiac Surgery, Department of Surgery, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada
| | - Jessica Luc
- Division of Cardiovascular Surgery, University of British Columbia, Vancouver, Canada
| | - Olina Dagher
- Division of Cardiac Surgery, University of Calgary, Calgary, Canada
| | - Joel Bierer
- Division of Cardiac Surgery, Dalhousie University, Halifax, Canada
| | | | | | - Thin X Vo
- Division of Cardiac Surgery, University of Ottawa Heart Institute, University of Ottawa, Ottawa, Canada
| | - Keir Forgie
- Division of Cardiac Surgery, University of Alberta, Edmonton, Canada
| | - Gianluigi Bisleri
- Divisions of Cardiac Surgery, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - Terrence M Yau
- Division of Cardiac Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Subodh Verma
- Divisions of Cardiac Surgery, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - Bobby Yanagawa
- Divisions of Cardiac Surgery, St. Michael's Hospital, University of Toronto, Toronto, Canada
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Bärnthaler T, Mahla E, Toth GG, Schuligoi R, Prüller F, Buschmann E, Heinemann A. Supplemental Fibrinogen Restores Platelet Inhibitor-Induced Reduction in Thrombus Formation without Altering Platelet Function: An In Vitro Study. Thromb Haemost 2020; 120:1548-1556. [PMID: 32772348 DOI: 10.1055/s-0040-1715445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND For patients treated with dual antiplatelet therapy, standardized drug-specific 3-to-7 day cessation is recommended prior to major surgery to reach sufficient platelet function recovery. Here we investigated the hypothesis that supplemental fibrinogen might mitigate the inhibitory effects of antiplatelet therapy. METHODS AND RESULTS To this end blood from healthy donors was treated in vitro with platelet inhibitors, and in vitro thrombus formation and platelet activation were assessed. Ticagrelor, acetylsalicylic acid, the combination of both, and tirofiban all markedly attenuated the formation of adherent thrombi, when whole blood was perfused through collagen-coated microchannels at physiological shear rates. Addition of fibrinogen restored in vitro thrombus formation in the presence of antiplatelet drugs and heparin. However, platelet activation, as investigated in assays of P-selectin expression and calcium flux, was not altered by fibrinogen supplementation. Most importantly, fibrinogen was able to restore in vitro thrombogenesis in patients on maintenance dual antiplatelet therapy after percutaneous coronary intervention. CONCLUSION Thus, our in vitro data support the notion that supplementation of fibrinogen influences the perioperative hemostasis in patients undergoing surgery during antiplatelet therapy by promoting thrombogenesis without significantly interfering with platelet activation.
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Affiliation(s)
- Thomas Bärnthaler
- Otto Loewi Research Center, Division of Pharmacology Medical University of Graz, Graz, Austria
| | - Elisabeth Mahla
- Division of Anaesthesiology for Cardiovascular and Thoracic Surgery and Intensive Care Medicine, Department of Anesthesiology and Intensive Care Medicine, Medical University of Graz, Graz, Austria
| | - Gabor G Toth
- Division of Cardiology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Rufina Schuligoi
- Otto Loewi Research Center, Division of Pharmacology Medical University of Graz, Graz, Austria
| | - Florian Prüller
- Clinical Institute of Medical Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - Eva Buschmann
- Division of Cardiology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Akos Heinemann
- Otto Loewi Research Center, Division of Pharmacology Medical University of Graz, Graz, Austria
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8
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Bolliger D, Lancé MD, Siegemund M. Point-of-Care Platelet Function Monitoring: Implications for Patients With Platelet Inhibitors in Cardiac Surgery. J Cardiothorac Vasc Anesth 2020; 35:1049-1059. [PMID: 32807601 DOI: 10.1053/j.jvca.2020.07.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 12/13/2022]
Abstract
Although most physicians are comfortable managing the limited anticoagulant effect of aspirin, the recent administration of potent P2Y12 receptor inhibitors in patients undergoing cardiac surgery remains a dilemma. Guidelines recommend discontinuation of potent P2Y12 inhibitors 5- to- 7 days before surgery to reduce the risk of postoperative hemorrhage. Such a strategy might not be feasible before urgent surgery, due to ongoing myocardial ischemia or in patients at high risk for thromboembolic events. Recently, different point-of-care devices to assess functional platelet quality have become available for clinical use. The aim of this narrative review was to evaluate the implications and potential benefits of platelet function monitoring in guiding perioperative management and therapeutic options in patients treated with antiplatelets, including aspirin or P2Y12 receptor inhibitors, undergoing cardiac surgery. No objective superiority of one point-of-care device over another was found in a large meta-analysis. Their accuracy and reliability are generally limited in the perioperative period. In particular, preoperative platelet function testing has been used to assess platelet contribution to bleeding after cardiac surgery. However, predictive values for postoperative hemorrhage and transfusion requirements are low, and there is a significant variability between and within these tests. Further, platelet function monitoring has been used to optimize the preoperative waiting period after cessation of dual antiplatelet therapy before urgent cardiac surgery. Furthermore, studies assessing their value in therapeutic decisions in bleeding patients after cardiac surgery are scarce. A general and liberal use of perioperative platelet function testing is not yet recommended.
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Affiliation(s)
- Daniel Bolliger
- Department for Anesthesia, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland.
| | - Marcus D Lancé
- Department of Anesthesiology, Intensive Care Unit and Perioperative Medicine, Weill-Cornell Medicine-Qatar, Hamad Medical Corporation, Doha, Qatar
| | - Martin Siegemund
- Intensive Care Medicine, University Hospital Basel, Basel, Switzerland
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9
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Javanbakht M, Trevor M, Rezaei Hemami M, Rahimi K, Branagan-Harris M, Degener F, Adam D, Preissing F, Scheier J, Cook SF, Mortensen E. Ticagrelor Removal by CytoSorb ® in Patients Requiring Emergent or Urgent Cardiac Surgery: A UK-Based Cost-Utility Analysis. PHARMACOECONOMICS - OPEN 2020; 4:307-319. [PMID: 31620999 PMCID: PMC7248150 DOI: 10.1007/s41669-019-00183-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
BACKGROUND Acute coronary syndrome patients receiving dual antiplatelet therapy who need emergent or urgent cardiac surgery are at high risk of major bleeding, which can impair postoperative outcomes. CytoSorb®, a blood purification technology based on adsorbent polymer, has been demonstrated to remove ticagrelor from blood during on-pump cardiac surgery. OBJECTIVE The aim of this study was to evaluate the cost utility of intraoperative removal of ticagrelor using CytoSorb versus usual care among patients requiring emergent or urgent cardiac surgery in the UK. METHODS A de novo decision analytic model, based on current treatment pathways, was developed to estimate the short- and long-term costs and outcomes. Results from randomised clinical trials and national standard sources such as National Health Service (NHS) reference costs were used to inform the model. Costs were estimated from the NHS and Personal Social Services perspective. Deterministic and probabilistic sensitivity analyses (PSAs) explored the uncertainty surrounding the input parameters. RESULTS In emergent cardiac surgery, intraoperative removal of ticagrelor using CytoSorb was less costly (£12,933 vs. £16,874) and more effective (0.06201vs. 0.06091 quality-adjusted life-years) than cardiac surgery without physiologic clearance of ticagrelor over a 30-day time horizon. For urgent cardiac surgery, the use of CytoSorb was less costly than any of the three comparators-delaying surgery for natural washout without adjunctive therapy, adjunctive therapy with short-acting antiplatelet agents, or adjunctive therapy with low-molecular-weight heparin. Results from the PSAs showed that CytoSorb has a high probability of being cost saving (99% in emergent cardiac surgery and 53-77% in urgent cardiac surgery, depending on the comparators). Cost savings derive from fewer transfusions of blood products and re-thoracotomies, and shorter stay in the hospital/intensive care unit. CONCLUSIONS The implementation of CytoSorb as an intraoperative intervention for patients receiving ticagrelor undergoing emergent or urgent cardiac surgery is a cost-saving strategy, yielding improvement in perioperative and postoperative outcomes and decreased health resource use.
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Affiliation(s)
- Mehdi Javanbakht
- Optimax Access UK Ltd, Market Access Consultancy, 20 Forth Banks Tower, Newcastle upon Tyne, NE1 3PN, UK.
- Device Access UK Ltd, Market Access Consultancy, University of Southampton Science Park, Chilworth Hampshire, UK.
| | | | | | - Kazem Rahimi
- The George Institute for Global Health, University of Oxford, Oxford, UK
| | - Michael Branagan-Harris
- Device Access UK Ltd, Market Access Consultancy, University of Southampton Science Park, Chilworth Hampshire, UK
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Thiele T. Thrombozytentransfusion bei hämatologisch-onkologischen Patienten. INFO HÄMATOLOGIE + ONKOLOGIE 2020. [PMCID: PMC7298445 DOI: 10.1007/s15004-020-8138-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Charpentier T, Ferdynus C, Lair T, Cordier C, Brulliard C, Valance D, Emery M, Caron M, Allou N, Allyn J. Bleeding risk of ticagrelor compared to clopidogrel in intensive care unit patients with acute coronary syndrome: A propensity-score matching analysis. PLoS One 2020; 15:e0232768. [PMID: 32365100 PMCID: PMC7197796 DOI: 10.1371/journal.pone.0232768] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/21/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Intensive care unit (ICU) patients with the most severe forms of acute coronary syndrome (ACS) require invasive therapies such as extracorporeal life support. The risk of bleeding in ICU patients with ACS treated with a dual antiplatelet therapy of aspirin and ticagrelor is unknown. The primary objective of this study was to compare the bleeding risk of ticagrelor and clopidogrel in ICU patients with ACS. METHODS AND FINDINGS We conducted a retrospective study based on a propensity score and a proportional hazards model. All patients with ACS hospitalized in the ICU of a French university hospital between January 2013 and January 2017 were included in the study. Bleeding during ICU stay was defined as all Thrombolysis in myocardial infarction (TIMI) major or minor events. A total of 155 patients were included in the study. According to propensity score matching, 57 patients treated with aspirin and ticagrelor were matched with 57 patients treated with aspirin and clopidogrel. Median (first-third quartile) Simplified Acute Physiology Score II was 61.5 (41.0-85.0). Bleeding during ICU stay occurred in 12 patients (21.1%) treated with clopidogrel and in 35 patients (61.4%) treated with ticagrelor (p<0.0001). This significant association was found for both TIMI major bleeding (12.3% vs. 35.1%, p = 0.004) and TIMI minor bleeding (8.8% vs. 26.3%, p = 0.01). The relative risk of bleeding occurrence during ICU stay was 2.60 (confidence interval 95%: 1.55-4.35) for ticagrelor compared to clopidogrel. No significant difference in ICU mortality was found between the two groups (45.6% in the clopidogrel group vs. 29.8% in the ticagrelor group, p = 0.08). CONCLUSIONS Bleeding complications are frequent and serious in ICU patients with ACS. A dual antiplatelet therapy of aspirin and ticagrelor is associated with a higher risk of bleeding compared to a dual antiplatelet therapy of aspirin and clopidogrel.
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Affiliation(s)
- Thibault Charpentier
- Réanimation Polyvalente, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
| | - Cyril Ferdynus
- Unité de Soutien Méthodologique, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
- INSERM, CIC 1410, Saint-Pierre, France
- Département d’Informatique Clinique, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
| | - Thomas Lair
- Réanimation Polyvalente, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
| | - Charlotte Cordier
- Réanimation Polyvalente, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
| | - Caroline Brulliard
- Réanimation Polyvalente, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
| | - Dorothée Valance
- Réanimation Polyvalente, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
| | - Malo Emery
- Réanimation Polyvalente, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
| | - Margot Caron
- Réanimation Polyvalente, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
| | - Nicolas Allou
- Réanimation Polyvalente, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
- Département d’Informatique Clinique, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
| | - Jérôme Allyn
- Réanimation Polyvalente, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
- Département d’Informatique Clinique, Centre hospitalier universitaire Félix Guyon, La Réunion, Saint-Denis, France
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Farooq MU. Ticagrelor: A safe option as part of triple therapy? Clin Pract 2020; 10:1221. [PMID: 32373308 PMCID: PMC7196927 DOI: 10.4081/cp.2020.1221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 04/10/2020] [Indexed: 11/23/2022] Open
Abstract
Patients with atrial fibrillation who have concurrent coronary artery disease requiring percutaneous coronary intervention are subsequently prescribed dual antiplatelet therapy and anticoagulation resulting in triple therapy (TT). Ticagrelor, a reversibly binding P2Y12 antiplatelet agent, has shown superiority to clopidogrel in prevention of ischemic events and death, but is also associated with a small increase in the incidence of intracranial bleeding. This bleeding risk may be enhanced in the setting of TT. The objective of this report is to describe a case of a 70-year-old male prescribed TT with ticagrelor and to review the current literature on the safety of ticagrelor as a part of TT.
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Affiliation(s)
- Mohammad Umar Farooq
- ChristianaCare Health System, Academic Affiliate of Sidney Kimmel Medical College, Thomas Jefferson University, Newark, DE, USA
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13
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Comparison of two preventive dual antiplatelet regimens for unruptured intracranial aneurysm embolization with flow diverter/disrupter: A matched-cohort study comparing clopidogrel with ticagrelor. J Neuroradiol 2019; 46:378-383. [DOI: 10.1016/j.neurad.2019.01.094] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 01/21/2019] [Indexed: 01/14/2023]
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Traby L, Kollars M, Kaider A, Siller-Matula JM, Wolkersdorfer MF, Wolzt M, Kyrle PA, Eichinger S. Differential Effects of Ticagrelor With or Without Aspirin on Platelet Reactivity and Coagulation Activation: A Randomized Trial in Healthy Volunteers. Clin Pharmacol Ther 2019; 107:415-422. [PMID: 31442298 PMCID: PMC7006887 DOI: 10.1002/cpt.1616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 07/29/2019] [Indexed: 01/04/2023]
Abstract
Dual antiplatelet therapy (DAPT) is standard in acute coronary heart disease but confers a bleeding risk. To compare the effects of ticagrelor‐monotherapy with ticagrelor‐based DAPT on hemostatic system activation, we conducted a randomized controlled trial in 44 volunteers using a loading‐dose regimen and measured platelet‐aggregometry triggered by adenosine diphosphate (multiple electrode aggregometry (MEA)‐ADP) and arachidonic acid (MEA‐AA), the vasodilator‐stimulated phosphoprotein (VASP), prothrombin fragment 1.2 (f1.2), and d‐Dimer. Ticagrelor‐based DAPT and ticagrelor‐monotherapy significantly decreased MEA‐ADP (Δmean: −51.4 (−56.9; −45.8) and −46.2 (−51.7; −40.7)) and VASP (Δmean: −70.3 (−76.2; −64.4) and −69.6 (−75.5; −63.7)) at 2 hours and over 24 hours. MEA‐AA was reduced significantly by both treatments (Δmean: −72.9 (−80.6; −65.3) and −25.7 (−33.3; −18.0)) at 2 hours, and stronger by ticagrelor‐based DAPT over 24 hours. Both treatments decreased f1.2 (geometric mean ratio (GMR): 0.92 (0.84; 1.01) and 0.88 (0.80; 0.96)) and d‐Dimer (GMR: 0.89 (0.86; 0.92) and 0.91 (0.88; 0.94)) at 2 hours and d‐Dimer over 24 hours. Ticagrelor‐monotherapy and ticagrelor‐based DAPT comparably affect hemostatic system activation.
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Affiliation(s)
- Ludwig Traby
- Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Marietta Kollars
- Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Alexandra Kaider
- Center for Medical Statistics, Informatics and Intelligent Systems, Medical University of Vienna, Vienna, Austria
| | | | | | - Michael Wolzt
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Paul A Kyrle
- Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Sabine Eichinger
- Department of Medicine I, Medical University of Vienna, Vienna, Austria
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15
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Bhatt DL, Pollack CV, Weitz JI, Jennings LK, Xu S, Arnold SE, Umstead BR, Mays MC, Lee JS. Antibody-Based Ticagrelor Reversal Agent in Healthy Volunteers. N Engl J Med 2019; 380:1825-1833. [PMID: 30883047 DOI: 10.1056/nejmoa1901778] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Ticagrelor is an oral P2Y12 inhibitor that is used with aspirin to reduce the risk of ischemic events among patients with acute coronary syndromes or previous myocardial infarction. Spontaneous major bleeding and bleeding associated with urgent invasive procedures are concerns with ticagrelor, as with other antiplatelet drugs. The antiplatelet effects of ticagrelor cannot be reversed with platelet transfusion. A rapid-acting reversal agent would be useful. METHODS In this randomized, double-blind, placebo-controlled, phase 1 trial, we evaluated intravenous PB2452, a monoclonal antibody fragment that binds ticagrelor with high affinity, as a ticagrelor reversal agent. We assessed platelet function in healthy volunteers before and after 48 hours of ticagrelor pretreatment and again after the administration of PB2452 or placebo. Platelet function was assessed with the use of light transmission aggregometry, a point-of-care P2Y12 platelet-reactivity test, and a vasodilator-stimulated phosphoprotein assay. RESULTS Of the 64 volunteers who underwent randomization, 48 were assigned to receive PB2452 and 16 to receive placebo. After 48 hours of ticagrelor pretreatment, platelet aggregation was suppressed by approximately 80%. PB2452 administered as an initial intravenous bolus followed by a prolonged infusion (8, 12, or 16 hours) was associated with a significantly greater increase in platelet function than placebo, as measured by multiple assays. Ticagrelor reversal occurred within 5 minutes after the initiation of PB2452 and was sustained for more than 20 hours (P<0.001 after Bonferroni adjustment across all time points for all assays). There was no evidence of a rebound in platelet activity after drug cessation. Adverse events related to the trial drug were limited mainly to issues involving the infusion site. CONCLUSIONS In healthy volunteers, the administration of PB2452, a specific reversal agent for ticagrelor, provided immediate and sustained reversal of the antiplatelet effects of ticagrelor, as measured by multiple assays. (Funded by PhaseBio Pharmaceuticals; ClinicalTrials.gov number, NCT03492385.).
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Affiliation(s)
- Deepak L Bhatt
- From the Brigham and Women's Hospital Heart and Vascular Center and Harvard Medical School, Boston (D.L.B.); the Department of Emergency Medicine, Thomas Jefferson University, Philadelphia (C.V.P.); McMaster University and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.I.W.); CirQuest Labs and the University of Tennessee Health Science Center, Memphis (L.K.J.); and PhaseBio Pharmaceuticals, Malvern, PA (S.X., S.E.A., B.R.U., M.C.M., J.S.L.)
| | - Charles V Pollack
- From the Brigham and Women's Hospital Heart and Vascular Center and Harvard Medical School, Boston (D.L.B.); the Department of Emergency Medicine, Thomas Jefferson University, Philadelphia (C.V.P.); McMaster University and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.I.W.); CirQuest Labs and the University of Tennessee Health Science Center, Memphis (L.K.J.); and PhaseBio Pharmaceuticals, Malvern, PA (S.X., S.E.A., B.R.U., M.C.M., J.S.L.)
| | - Jeffrey I Weitz
- From the Brigham and Women's Hospital Heart and Vascular Center and Harvard Medical School, Boston (D.L.B.); the Department of Emergency Medicine, Thomas Jefferson University, Philadelphia (C.V.P.); McMaster University and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.I.W.); CirQuest Labs and the University of Tennessee Health Science Center, Memphis (L.K.J.); and PhaseBio Pharmaceuticals, Malvern, PA (S.X., S.E.A., B.R.U., M.C.M., J.S.L.)
| | - Lisa K Jennings
- From the Brigham and Women's Hospital Heart and Vascular Center and Harvard Medical School, Boston (D.L.B.); the Department of Emergency Medicine, Thomas Jefferson University, Philadelphia (C.V.P.); McMaster University and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.I.W.); CirQuest Labs and the University of Tennessee Health Science Center, Memphis (L.K.J.); and PhaseBio Pharmaceuticals, Malvern, PA (S.X., S.E.A., B.R.U., M.C.M., J.S.L.)
| | - Sherry Xu
- From the Brigham and Women's Hospital Heart and Vascular Center and Harvard Medical School, Boston (D.L.B.); the Department of Emergency Medicine, Thomas Jefferson University, Philadelphia (C.V.P.); McMaster University and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.I.W.); CirQuest Labs and the University of Tennessee Health Science Center, Memphis (L.K.J.); and PhaseBio Pharmaceuticals, Malvern, PA (S.X., S.E.A., B.R.U., M.C.M., J.S.L.)
| | - Susan E Arnold
- From the Brigham and Women's Hospital Heart and Vascular Center and Harvard Medical School, Boston (D.L.B.); the Department of Emergency Medicine, Thomas Jefferson University, Philadelphia (C.V.P.); McMaster University and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.I.W.); CirQuest Labs and the University of Tennessee Health Science Center, Memphis (L.K.J.); and PhaseBio Pharmaceuticals, Malvern, PA (S.X., S.E.A., B.R.U., M.C.M., J.S.L.)
| | - Bret R Umstead
- From the Brigham and Women's Hospital Heart and Vascular Center and Harvard Medical School, Boston (D.L.B.); the Department of Emergency Medicine, Thomas Jefferson University, Philadelphia (C.V.P.); McMaster University and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.I.W.); CirQuest Labs and the University of Tennessee Health Science Center, Memphis (L.K.J.); and PhaseBio Pharmaceuticals, Malvern, PA (S.X., S.E.A., B.R.U., M.C.M., J.S.L.)
| | - Michael C Mays
- From the Brigham and Women's Hospital Heart and Vascular Center and Harvard Medical School, Boston (D.L.B.); the Department of Emergency Medicine, Thomas Jefferson University, Philadelphia (C.V.P.); McMaster University and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.I.W.); CirQuest Labs and the University of Tennessee Health Science Center, Memphis (L.K.J.); and PhaseBio Pharmaceuticals, Malvern, PA (S.X., S.E.A., B.R.U., M.C.M., J.S.L.)
| | - John S Lee
- From the Brigham and Women's Hospital Heart and Vascular Center and Harvard Medical School, Boston (D.L.B.); the Department of Emergency Medicine, Thomas Jefferson University, Philadelphia (C.V.P.); McMaster University and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.I.W.); CirQuest Labs and the University of Tennessee Health Science Center, Memphis (L.K.J.); and PhaseBio Pharmaceuticals, Malvern, PA (S.X., S.E.A., B.R.U., M.C.M., J.S.L.)
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17
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Singh S, Damén T, Dellborg M, Jeppsson A, Nygren A. Intraoperative infusion of noradrenaline improves platelet aggregation in patients undergoing coronary artery bypass grafting: a randomized controlled trial. J Thromb Haemost 2019; 17:657-665. [PMID: 30762945 DOI: 10.1111/jth.14408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Indexed: 01/06/2023]
Abstract
Essentials Strategies to improve platelet function may reduce excessive bleeding during cardiac surgery. Patients were randomized to standard care or standard care + noradrenaline infusion. Low-dose noradrenaline improved intraoperative platelet aggregation and clot formation. Noradrenaline may be considered to improve intraoperative hemostasis during cardiac surgery. SUMMARY: Background New approaches to prevent bleeding complications during cardiac surgery are needed. Objective To investigate if noradrenaline (NA) enhances platelet aggregation in patients undergoing coronary artery bypass grafting (CABG). Patients/Methods Twenty-four patients undergoing coronary artery bypass grafting (CABG) were included in a prospective parallel-group randomized study. All patients but one were treated with acetylsalicylic acid (ASA). In the treatment group (n = 12), mean arterial blood pressure (MAP) was maintained at pre-induction levels by NA infusion. In the control group (n = 12), NA was administered only if MAP decreased below 60 mmHg. Platelet aggregation (impedance aggregometry with ADP, arachidonic acid [AA] and thrombin-receptor activating peptide [TRAP] as initiators) and clot formation (clotting time, clot formation time and maximum clot firmness by EXTEM, INTEM and FIBTEM tests with thromboelastometry) were assessed before and 50 min after anesthesia induction (before cardiopulmonary bypass was initiated). Results All patients in the treatment group received NA (median dose after 50 min 0.09 (range 0-0.26) μg kg-1 min-1 ). Four patients in the control group also received NA (0.03-0.12 μg kg-1 min-1 ). There were differences between the treatment group and the control group in ADP- and AA-induced aggregation changes (ADP, +16 [25th-75th percentiles, 5-26] vs. -7 [-19 to -1] U; AA, +12 [-4 to 16] vs. -9 [-13 to 1] U). INTEM maximum clot firmness increased in the treatment group but not in the control group. Conclusion Infusion of clinically relevant doses of NA enhanced platelet aggregation and clot firmness in ASA-treated CABG patients. NA infusion is hence a potential new method to acutely improve platelet reactivity in patients on antiplatelet therapy undergoing surgery.
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Affiliation(s)
- Sukhi Singh
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Tor Damén
- Department of Anesthesiology and Intensive Care Medicine, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Cardiothoracic Anesthesia and Intensive Care, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Mikael Dellborg
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anders Jeppsson
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Andreas Nygren
- Department of Anesthesiology and Intensive Care Medicine, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Cardiothoracic Anesthesia and Intensive Care, Sahlgrenska University Hospital, Gothenburg, Sweden
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18
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Nagalla S, Sarode R. Role of Platelet Transfusion in the Reversal of Anti-Platelet Therapy. Transfus Med Rev 2019; 33:92-97. [DOI: 10.1016/j.tmrv.2019.01.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 01/01/2019] [Accepted: 01/14/2019] [Indexed: 12/31/2022]
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19
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Spahn DR, Bouillon B, Cerny V, Duranteau J, Filipescu D, Hunt BJ, Komadina R, Maegele M, Nardi G, Riddez L, Samama CM, Vincent JL, Rossaint R. The European guideline on management of major bleeding and coagulopathy following trauma: fifth edition. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:98. [PMID: 30917843 PMCID: PMC6436241 DOI: 10.1186/s13054-019-2347-3] [Citation(s) in RCA: 663] [Impact Index Per Article: 132.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 02/06/2019] [Indexed: 12/24/2022]
Abstract
Background Severe traumatic injury continues to present challenges to healthcare systems around the world, and post-traumatic bleeding remains a leading cause of potentially preventable death among injured patients. Now in its fifth edition, this document aims to provide guidance on the management of major bleeding and coagulopathy following traumatic injury and encourages adaptation of the guiding principles described here to individual institutional circumstances and resources. Methods The pan-European, multidisciplinary Task Force for Advanced Bleeding Care in Trauma was founded in 2004, and the current author group included representatives of six relevant European professional societies. The group applied a structured, evidence-based consensus approach to address scientific queries that served as the basis for each recommendation and supporting rationale. Expert opinion and current clinical practice were also considered, particularly in areas in which randomised clinical trials have not or cannot be performed. Existing recommendations were re-examined and revised based on scientific evidence that has emerged since the previous edition and observed shifts in clinical practice. New recommendations were formulated to reflect current clinical concerns and areas in which new research data have been generated. Results Advances in our understanding of the pathophysiology of post-traumatic coagulopathy have supported improved management strategies, including evidence that early, individualised goal-directed treatment improves the outcome of severely injured patients. The overall organisation of the current guideline has been designed to reflect the clinical decision-making process along the patient pathway in an approximate temporal sequence. Recommendations are grouped behind the rationale for key decision points, which are patient- or problem-oriented rather than related to specific treatment modalities. While these recommendations provide guidance for the diagnosis and treatment of major bleeding and coagulopathy, emerging evidence supports the author group’s belief that the greatest outcome improvement can be achieved through education and the establishment of and adherence to local clinical management algorithms. Conclusions A multidisciplinary approach and adherence to evidence-based guidance are key to improving patient outcomes. If incorporated into local practice, these clinical practice guidelines have the potential to ensure a uniform standard of care across Europe and beyond and better outcomes for the severely bleeding trauma patient. Electronic supplementary material The online version of this article (10.1186/s13054-019-2347-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Donat R Spahn
- Institute of Anaesthesiology, University of Zurich and University Hospital Zurich, Raemistrasse 100, CH-8091, Zurich, Switzerland
| | - Bertil Bouillon
- Department of Trauma and Orthopaedic Surgery, Cologne-Merheim Medical Centre (CMMC), University of Witten/Herdecke, Ostmerheimer Strasse 200, D-51109, Cologne, Germany
| | - Vladimir Cerny
- Department of Anaesthesiology, Perioperative Medicine and Intensive Care, J.E. Purkinje University, Masaryk Hospital, Usti nad Labem, Socialni pece 3316/12A, CZ-40113, Usti nad Labem, Czech Republic.,Centre for Research and Development, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic, Sokolska 581, CZ-50005, Hradec Kralove, Czech Republic.,Department of Anaesthesiology and Intensive Care Medicine, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, CZ-50003, Hradec Kralove, Czech Republic.,Department of Anaesthesia, Pain Management and Perioperative Medicine, QE II Health Sciences Centre, Dalhousie University, Halifax, 10 West Victoria, 1276 South Park St, Halifax, NS, B3H 2Y9, Canada
| | - Jacques Duranteau
- Department of Anaesthesia and Intensive Care, Hôpitaux Universitaires Paris Sud, University of Paris XI, Faculté de Médecine Paris-Sud, 78 rue du Général Leclerc, F-94275, Le Kremlin-Bicêtre Cedex, France
| | - Daniela Filipescu
- Department of Cardiac Anaesthesia and Intensive Care, C. C. Iliescu Emergency Institute of Cardiovascular Diseases, Sos Fundeni 256-258, RO-022328, Bucharest, Romania
| | - Beverley J Hunt
- King's College and Departments of Haematology and Pathology, Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK
| | - Radko Komadina
- Department of Traumatology, General and Teaching Hospital Celje, Medical Faculty Ljubljana University, SI-3000, Celje, Slovenia
| | - Marc Maegele
- Department of Trauma and Orthopaedic Surgery, Cologne-Merheim Medical Centre (CMMC), Institute for Research in Operative Medicine (IFOM), University of Witten/Herdecke, Ostmerheimer Strasse 200, D-51109, Cologne, Germany
| | - Giuseppe Nardi
- Department of Anaesthesia and ICU, AUSL della Romagna, Infermi Hospital Rimini, Viale Settembrini, 2, I-47924, Rimini, Italy
| | - Louis Riddez
- Department of Surgery and Trauma, Karolinska University Hospital, S-171 76, Solna, Sweden
| | - Charles-Marc Samama
- Hotel-Dieu University Hospital, 1, place du Parvis de Notre-Dame, F-75181, Paris Cedex 04, France
| | - Jean-Louis Vincent
- Department of Intensive Care, Erasme University Hospital, Université Libre de Bruxelles, Route de Lennik 808, B-1070, Brussels, Belgium
| | - Rolf Rossaint
- Department of Anaesthesiology, University Hospital Aachen, RWTH Aachen University, Pauwelsstrasse 30, D-52074, Aachen, Germany.
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21
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Smith TJ, Johnson JL, Habtewold A, Burmeister MA. Cardiovascular Risk Reduction: A Pharmacotherapeutic Update for Antiplatelet Medications. Crit Care Nurs Clin North Am 2018; 31:15-30. [PMID: 30736932 DOI: 10.1016/j.cnc.2018.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This update presents evidence for new antiplatelet therapies including modified P2Y12 inhibitors and a new class of thromboxane antagonists. Discussed are emerging data on established antihyperlipidemic medications that support an additional antiplatelet effect. Current information about the effectiveness of several bleeding reversal agents is discussed, and the concept of personalized antiplatelet therapy, wherein selection of an antiplatelet therapy is based on genetic factors or laboratory testing that predict response to therapy and risk of adverse effects. Finally, future drug targets are introduced and drug interactions that can be leveraged to design more effective and safe antiplatelet therapies are described.
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Affiliation(s)
- Troy J Smith
- Department of Pharmacy Practice and Administration, William Carey University School of Pharmacy, 19640 MS-67, Biloxi, MS 39532, USA.
| | - Jessica L Johnson
- Department of Pharmacy Practice and Administration, William Carey University School of Pharmacy, 19640 MS-67, Biloxi, MS 39532, USA
| | - Abiy Habtewold
- Department of Pharmaceutical Sciences, William Carey University School of Pharmacy, 19640 MS-67, Biloxi, MS 39532, USA
| | - Melissa A Burmeister
- Department of Pharmaceutical Sciences, William Carey University School of Pharmacy, 19640 MS-67, Biloxi, MS 39532, USA
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22
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Mahla E, Tantry US, Prüller F, Gurbel PA. Is There a Role for Preoperative Platelet Function Testing in Patients Undergoing Cardiac Surgery During Antiplatelet Therapy? Circulation 2018; 138:2145-2159. [DOI: 10.1161/circulationaha.118.035160] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Elisabeth Mahla
- Department of Anesthesiology and Intensive Care Medicine (E.M.), Medical University of Graz, Austria
| | - Udaya S. Tantry
- Inova Center for Thrombosis Research and Drug Development, Inova Heart and Vascular Institute, Falls Church, VA (U.S.T., P.A.G.)
| | - Florian Prüller
- Clinical Institute of Medical and Chemical Laboratory Diagnostics (F.P.), Medical University of Graz, Austria
| | - Paul A. Gurbel
- Inova Center for Thrombosis Research and Drug Development, Inova Heart and Vascular Institute, Falls Church, VA (U.S.T., P.A.G.)
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23
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Singh S, Malm CJ, Ramström S, Hesse C, Jeppsson A. Adrenaline enhances in vitro platelet activation and aggregation in blood samples from ticagrelor-treated patients. Res Pract Thromb Haemost 2018; 2:718-725. [PMID: 30349891 PMCID: PMC6178615 DOI: 10.1002/rth2.12149] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 08/04/2018] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Temporarily improved platelet reactivity may reduce the bleeding in patients on antiplatelet therapy who have ongoing bleeding or who are in need of acute surgery. Adrenaline can bind to adrenergic α2A-receptors on platelets and potentially enhance platelet reactivity. OBJECTIVE To assess if adrenaline can improve adenosine diphosphate (ADP)-induced platelet aggregation and activation in blood samples from patients on dual antiplatelet therapy with acetylsalicylic acid (ASA) and the ADP-receptor antagonist ticagrelor. METHODS Blood samples were collected from a total of forty acute coronary syndrome patients on dual antiplatelet therapy with ASA and ticagrelor. ADP-induced platelet aggregation (by impedance aggregometry) and activation (by flow cytometry) were assessed before and after supplementation with adrenaline and/or platelet concentrate. RESULTS Adrenaline supplementation (770 nmol L-1) increased median ADP-induced aggregation from 15 (25-75th percentiles: 10-20) to 26 (18-38) aggregation units. The effect was independent of concomitant platelet supplementation. Adrenaline also increased ADP-induced platelet activation: from 40% (36-54%) to 83% (74-88%) platelets with active fibrinogen receptor (binding PAC-1) and from 13% (7-21%) to 35% (18-50%) P-selectin-expressing platelets. CONCLUSIONS Adrenaline potentiated ADP-induced platelet aggregation and activation in blood samples from ticagrelor-treated patients. Adrenaline infusion may be a new method to enhance platelet function in ticagrelor-treated patients who are in need of acute surgery or have ongoing bleeding. In vivo studies are needed to confirm the present results.
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Affiliation(s)
- Sukhi Singh
- Department of Molecular and Clinical MedicineInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Carl Johan Malm
- Department of Molecular and Clinical MedicineInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Sofia Ramström
- School of Medical SciencesÖrebro UniversityÖrebroSweden
- Department of Clinical Chemistry and Department of Clinical and Experimental MedicineLinköping UniversityLinköpingSweden
| | - Camilla Hesse
- Department of Clinical Chemistry and Transfusion MedicineInstitute of BiomedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Regional Blood BankSahlgrenska University HospitalGothenburgSweden
| | - Anders Jeppsson
- Department of Molecular and Clinical MedicineInstitute of MedicineSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
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24
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Sierra P, Gómez-Luque A, Llau JV, Ferrandis R, Cassinello C, Hidalgo F. Recommendations for perioperative antiplatelet treatment in non-cardiac surgery. Working Group of the Spanish Society of Anaesthesiology-Resuscitation and Pain Therapy, Division of Haemostasis, Transfusion Medicine, and Perioperative Fluid Therapy. Update of the Clinical practice guide 2018. ACTA ACUST UNITED AC 2018; 66:18-36. [PMID: 30166124 DOI: 10.1016/j.redar.2018.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 07/13/2018] [Indexed: 12/24/2022]
Affiliation(s)
- P Sierra
- Servicio de Anestesiología, Reanimación y Tratamiento del Dolor, Fundación Puigvert (IUNA), Barcelona, España.
| | - A Gómez-Luque
- Servicio de Anestesiología, Reanimación y Tratamiento del Dolor, Hospital Universitario Virgen de la Victoria, Universidad de Málaga, Málaga, España
| | - J V Llau
- Servicio de Anestesiología, Reanimación y Tratamiento del Dolor, Hospital Dr. Peset, Universitat de València, Valencia, España
| | - R Ferrandis
- Servicio de Anestesiología, Reanimación y Tratamiento del Dolor, Hopital Clínic i Universitari La Fe, Universitat de València, Valencia, España
| | - C Cassinello
- Servicio de Anestesiología, Reanimación y Tratamiento del Dolor, Hospital Universitario Miguel Servet, Zaragoza, España
| | - F Hidalgo
- Servicio de Anestesiología, Reanimación y Tratamiento del Dolor, Clínica Universidad de Navarra, Pamplona, España
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Willeman T, Marlu R, Böhle H, Francony G, Jourdil JF, Fonrose X, Stanke-Labesque F. Lethal cerebral hemorrhage after ticagrelor intoxication: a specific antidote is urgently needed. Clin Toxicol (Phila) 2018; 56:1200-1203. [DOI: 10.1080/15563650.2018.1480026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Théo Willeman
- Laboratory of Pharmacology, Toxicology and Pharmacogenetics, Grenoble-Alpes University Hospital, Grenoble, France
| | - Raphael Marlu
- Hemostasis Laboratory, Grenoble-Alpes University Hospital, Grenoble, France
| | - Holger Böhle
- Department of Anesthesiology and Intensive Care, Grenoble-Alpes University Hospital, Grenoble, France
| | - Gilles Francony
- Department of Anesthesiology and Intensive Care, Grenoble-Alpes University Hospital, Grenoble, France
| | - Jean-François Jourdil
- Laboratory of Pharmacology, Toxicology and Pharmacogenetics, Grenoble-Alpes University Hospital, Grenoble, France
| | - Xavier Fonrose
- Laboratory of Pharmacology, Toxicology and Pharmacogenetics, Grenoble-Alpes University Hospital, Grenoble, France
| | - Françoise Stanke-Labesque
- Laboratory of Pharmacology, Toxicology and Pharmacogenetics, Grenoble-Alpes University Hospital, Grenoble, France
- INSERM U1042, HP2, Grenoble, France
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Kruger P, Chan N, Eikelboom JW. Platelet Transfusion for Ticagrelor Reversal. Circ Cardiovasc Interv 2017; 10:CIRCINTERVENTIONS.117.005579. [DOI: 10.1161/circinterventions.117.005579] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Paul Kruger
- From the Population Health Research Institute (P.K., J.W.E.); Thrombosis and Atherosclerosis Research Institute, Hamilton, Ontario, Canada (N.C., J.W.E.); and Hamilton Health Science Corporation and McMaster University, Ontario, Canada (P.K., N.C., J.W.E.)
| | - Noel Chan
- From the Population Health Research Institute (P.K., J.W.E.); Thrombosis and Atherosclerosis Research Institute, Hamilton, Ontario, Canada (N.C., J.W.E.); and Hamilton Health Science Corporation and McMaster University, Ontario, Canada (P.K., N.C., J.W.E.)
| | - John W. Eikelboom
- From the Population Health Research Institute (P.K., J.W.E.); Thrombosis and Atherosclerosis Research Institute, Hamilton, Ontario, Canada (N.C., J.W.E.); and Hamilton Health Science Corporation and McMaster University, Ontario, Canada (P.K., N.C., J.W.E.)
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Pehrsson S, Johansson KJ, Janefeldt A, Sandinge AS, Maqbool S, Goodman J, Sanchez J, Almquist J, Gennemark P, Nylander S. Hemostatic effects of the ticagrelor antidote MEDI2452 in pigs treated with ticagrelor on a background of aspirin. J Thromb Haemost 2017; 15:1213-1222. [PMID: 28322016 DOI: 10.1111/jth.13680] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Indexed: 01/22/2023]
Abstract
Essentials MEDI2452 is a specific antidote of the platelet P2Y12 receptor antagonist ticagrelor. Hemostatic effects of MEDI2452 were evaluated in pigs treated with ticagrelor and aspirin. MEDI2452 eliminated free ticagrelor within 5 min and gradually normalized platelet aggregation. Improvements in blood pressure (significant) and in blood-loss and survival (non-significant) were observed. SUMMARY Background Ticagrelor, a P2Y12 antagonist, is approved for the prevention of thromboembolic events. However, antiplatelet therapies carry a risk of bleeding. Objective To explore the hemostatic effects of MEDI2452, an antidote for ticagrelor. Methods Pigs, pre-treated with aspirin, were given an intravenous infusion of ticagrelor or vehicle. At the end of the infusion, a piece of a liver lobe was cut off and a bolus of MEDI2452 or vehicle was administered intravenously. Blood was collected to monitor blood loss, mean arterial blood pressure (MAP) was recorded and survival time was observed over 4 h. Blood samples for drug plasma exposures and platelet aggregation were collected. Results MEDI2452 eliminated the free concentrations of ticagrelor and its active metabolite AR-C124910XX within 5 min. ADP-induced platelet aggregation was close to normal at 60 min, which was not significantly different from aspirin alone. MEDI2452 numerically reduced ticagrelor-mediated effects: body-weight-adjusted blood loss in the 15- to 90-min interval, 12 (confidence interval [CI] 95% 7-28] vs. 17 (CI 95% 5-31) (ticagrelor and aspirin) vs. 5 (CI 95% 3-9) mL kg-1 (aspirin alone), survival 70% (CI 95% 47-100) vs. 45% (CI 95% 21-92) (ticagrelor and aspirin) vs. 100% (CI 95% 100-100) (aspirin alone), and median survival time, 240 (CI 95% 180-240) vs. 169 (CI 95% 64-240) (ticagrelor and aspirin) vs. 240 (CI 95% 240-240) min (aspirin alone). Finally, MEDI2452 significantly attenuated the decline in MAP, 0.08 (CI 95% 0.07-0.09) vs. 0.141 (CI 95% 0.135-0.148) (ticagrelor and aspirin) vs. 0.04 (CI 95% 0.03-0.05) mmHg per min (aspirin alone) and maintained MAP at a significantly higher level, 73 (CI 95% 51-95) vs. 48 (CI 95% 25-70) (ticagrelor and aspirin) vs. 115 (CI 95% 94-136) mmHg (aspirin alone). Conclusion MEDI2452 eliminated free ticagrelor and AR-C124910XX within 5 min. This translated into a gradual normalization of ADP-induced platelet aggregation and significant improvement in blood pressure and numerical but non-significant improvements in blood-loss and survival.
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Affiliation(s)
- S Pehrsson
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development, AstraZeneca, Mölndal, Sweden
| | - K J Johansson
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development, AstraZeneca, Mölndal, Sweden
| | - A Janefeldt
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development, AstraZeneca, Mölndal, Sweden
| | - A-S Sandinge
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development, AstraZeneca, Mölndal, Sweden
| | - S Maqbool
- Clinical Pharmacology and DMPK, MedImmune, Cambridge, UK
| | - J Goodman
- Clinical Pharmacology and DMPK, MedImmune, Cambridge, UK
| | - J Sanchez
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development, AstraZeneca, Mölndal, Sweden
| | - J Almquist
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development, AstraZeneca, Mölndal, Sweden
- Fraunhofer-Chalmers Center, Chalmers Science Park, Gothenburg, Sweden
- Systems and Synthetic Biology, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - P Gennemark
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development, AstraZeneca, Mölndal, Sweden
| | - S Nylander
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development, AstraZeneca, Mölndal, Sweden
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Becker RC. Reversal of Antithrombotic Therapy: Is it Necessary and Sufficient? JACC Basic Transl Sci 2017; 2:146-148. [PMID: 30167562 PMCID: PMC6113539 DOI: 10.1016/j.jacbts.2017.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Richard C. Becker
- Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, Ohio
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