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Ostroumova OD, Listratov AI, Ostroumova TM, Kochetkov AI, Sychev DA. Drug-induced non-traumatic intracranial hemorrhage associated with the use of anticoagulants and antiplatelet agents. NEUROLOGY, NEUROPSYCHIATRY, PSYCHOSOMATICS 2022. [DOI: 10.14412/2074-2711-2022-6-80-88] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- O. D. Ostroumova
- Department of Therapy and Polymorbid pathology named after academician M.S. Vovsi, Russian Medical Academy of Continuous Professional Education, Ministry of Health of Russia; Department of Clinical Pharmacology and Internal Diseases Propaedeutics, N.V. Sklifosovsky Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia
| | - A. I. Listratov
- Department of Therapy and Polymorbid pathology named after academician M.S. Vovsi, Russian Medical Academy of Continuous Professional Education, Ministry of Health of Russia
| | - T. M. Ostroumova
- Department of Nervous System Diseases and Neurosurgery, N.V. Sklifosovsky Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia
| | - A. I. Kochetkov
- Department of Therapy and Polymorbid pathology named after academician M.S. Vovsi, Russian Medical Academy of Continuous Professional Education, Ministry of Health of Russia
| | - D. A. Sychev
- Department of Clinical Pharmacology and Therapy named after academician B.E. Votchal, Russian Medical Academy of Continuous Professional Education, Ministry of Health of Russia
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Sturmberg JP, Kissling B, Kühlein T. Shared decision-making in the realm of uncertainty: The example of coronary artery disease through an EBM and complexity science lens. J Eval Clin Pract 2022. [PMID: 36419338 DOI: 10.1111/jep.13794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 11/27/2022]
Abstract
Patients look to their clinicians for explanations and treatments that achieve predictable cures with certainty. Clinicians usually respond accordingly. Acknowledging uncertainty, while necessary, is difficult, anxiety-provoking and at times overwhelming for patients and clinicians alike. We here present three case studies to illustrate the uncertainties of managing patients with potentially life-threatening illnesses. Research aims to provide answers to clinical problems. But, conducting research almost inevitably entails a reduction of real-world complexities. Research ultimately can only provide 'partial or in general answers' mostly revealing new questions. Due to the complexity of clinical care, research cannot really achieve certainty and predictability for an individual within his specific living context and values. In an unavoidably uncertain environment, instead of oversimplifying, clinicians like patients-as far as possible-ought to better embrace a complexity thinking frame. This provides a deeper understanding how living bodies function as-a-whole within their living contexts. Uncertainty and unpredictability, being inherent elements of complexity thinking, cannot be overcome. However, it may be made easier to cope with uncertainty by at least adopting the thinking in probabilities for benefits and harms of patient related outcomes as introduced in Sackett's Evidence-Based Medicine framework. Through the lenses of evidence-based medicine and complexity sciences this paper critically explores the clinical management of three patients diagnosed as having coronary artery disease. They all received the same treatment even though they presented with very different clinical complaints arising from different disease manifestations. Looking at these case studies the authors reflect on the reasons behind this astonishing, but widely seen medical behaviour of 'one size fits all'. They critically reflect the importance of research and evidence in view of a person-centred solution.
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Affiliation(s)
- Joachim P Sturmberg
- School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia
| | | | - Thomas Kühlein
- Allgemeinmedizinisches Institut, Universitätsklinikum Erlangen, Erlangen, Germany
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Riojas CM, Ekaney ML, Ross SW, Cunningham KW, Furay EJ, Brown CVR, Evans SL. Platelet Dysfunction after Traumatic Brain Injury: A Review. J Neurotrauma 2021; 38:819-829. [PMID: 33143502 DOI: 10.1089/neu.2020.7301] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Coagulopathy is a known sequela of traumatic brain injury (TBI) and can lead to increased morbidity and mortality. Platelet dysfunction has been identified as one of several etiologies of coagulopathy following TBI and has been associated with poor outcomes. Regardless of whether the platelet dysfunction occurs as a direct consequence of the injury or because of pre-existing medical comorbidities or medication use, accurate detection and monitoring of response to therapy is key to optimal patient care. Platelet transfusion has been proposed as a potential therapeutic intervention to treat platelet dysfunction, with several studies using platelet function assays to monitor response. The development of increasingly precise diagnostic testing is providing enhanced understanding of the specific derangement in the hemostatic process, allowing clinicians to provide patient-specific treatment plans. There is wide variability in the currently available literature on the incidence and clinical significance of platelet dysfunction following TBI, which creates challenges with developing evidence-based management guidelines. The relatively high prevalence of platelet inhibitor therapy serves as an additional confounding factor. In addition, the data are largely retrospective in nature. We performed a literature review to provide clarity on this clinical issue. We reviewed 348 abstracts, and included 97 manuscripts in our final literature review. Based on the currently available research, platelet dysfunction has been consistently demonstrated in patients with moderate-severe TBI. We recommend the use of platelet functional assays to evaluate patients with TBI. Platelet transfusion directed at platelet dysfunction may lead to improved clinical outcome. A randomized trial guided by implementation science could improve the applicability of these practices.
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Affiliation(s)
- Christina M Riojas
- FH "Sammy" Ross Trauma Center, Department of Surgery, Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Michael L Ekaney
- FH "Sammy" Ross Trauma Center, Department of Surgery, Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Samuel W Ross
- FH "Sammy" Ross Trauma Center, Department of Surgery, Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Kyle W Cunningham
- FH "Sammy" Ross Trauma Center, Department of Surgery, Carolinas Medical Center, Charlotte, North Carolina, USA
| | - Elisa J Furay
- Dell Medical School, University of Texas at Austin, Austin, Texas, USA
| | - Carlos V R Brown
- Dell Medical School, University of Texas at Austin, Austin, Texas, USA
| | - Susan L Evans
- FH "Sammy" Ross Trauma Center, Department of Surgery, Carolinas Medical Center, Charlotte, North Carolina, USA
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Bertling A, Fender AC, Schüngel L, Rumpf M, Mergemeier K, Geißler G, Sibrowski W, Kelsch R, Waltenberger J, Jakubowski JA, Kehrel BE. Reversibility of platelet P2Y12 inhibition by platelet supplementation: ex vivo and in vitro comparisons of prasugrel, clopidogrel and ticagrelor. J Thromb Haemost 2018; 16:1089-1098. [PMID: 29582544 DOI: 10.1111/jth.14014] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Indexed: 12/16/2022]
Abstract
Essentials Successful outcome of platelet transfusion depends on specific antiplatelet therapy in use. We assessed if ticagrelor, clopidogrel or prasugrel impacts on donor platelet activity ex vivo. Ticagrelor and/or its active metabolite in plasma or bound to platelets can inhibit donor platelets. This might compromise the effectiveness of platelet transfusion therapy. SUMMARY Background Platelet transfusion is the conventional approach to restore platelet function during acute bleeds or surgery, but successful outcome depends on the specific antiplatelet therapy. Notably ticagrelor is associated with inadequate recovery of platelet function after platelet transfusion. We examined whether plasma and/or platelets from ticagrelor-treated patients influence donor platelet function, in comparison with clopidogrel and prasugrel. Methods Platelet transfusion was mimicked ex vivo by mixing naïve donor platelet-rich plasma (PRP) or gel-filtered platelets (GFP) in defined proportions with PRP, plasma or GFP from cardiovascular patients receiving standard care including medication with prasugrel, clopidogrel or ticagrelor (n = 20 each). Blood was taken 4 h after the previous dose. HLA2/HLA28 haplotyping let us distinguish net (all platelet) and individual patient/donor platelet reactivity in mixtures of patient/donor platelets, measured by flow cytometry analysis of ADP-induced fibrinogen binding and CD62P expression. Results ADP responsiveness of donor platelets was dramatically reduced by even low (10%) concentrations of PRP or plasma from ticagrelor-treated patients. Clopidogrel and prasugrel were associated with more modest donor platelet inhibition. GFP from ticagrelor-treated patients but not patients receiving clopidogrel or prasugrel also suppressed donor GFP function upon mixing, suggesting the transfer of ticagrelor from patient platelets to donor platelets. This transfer did not lead to recovery of ADP responsiveness of patient's platelets. Conclusion Collectively, these observations support the concept that ticagrelor and/or its active metabolite in plasma or bound to platelets can inhibit donor platelets, which might compromise the effectiveness of platelet transfusion therapy.
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Affiliation(s)
- A Bertling
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Muenster, Germany
- Experimental and Clinical Haemostasis, University Hospital Muenster, Muenster, Germany
| | - A C Fender
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Muenster, Germany
- Experimental and Clinical Haemostasis, University Hospital Muenster, Muenster, Germany
- Institute of Pharmacology, University Hospital Essen, Essen, Germany
| | - L Schüngel
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Muenster, Germany
- Experimental and Clinical Haemostasis, University Hospital Muenster, Muenster, Germany
| | - M Rumpf
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Muenster, Germany
- Experimental and Clinical Haemostasis, University Hospital Muenster, Muenster, Germany
| | - K Mergemeier
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Muenster, Germany
- Experimental and Clinical Haemostasis, University Hospital Muenster, Muenster, Germany
| | - G Geißler
- Institute of Transfusion Medicine, University Hospital Muenster, Muenster, Germany
| | - W Sibrowski
- Institute of Transfusion Medicine, University Hospital Muenster, Muenster, Germany
| | - R Kelsch
- Institute of Transfusion Medicine, University Hospital Muenster, Muenster, Germany
| | - J Waltenberger
- Department of Cardiovascular Medicine, University Hospital Muenster, Muenster, Germany
| | - J A Jakubowski
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - B E Kehrel
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Muenster, Germany
- Experimental and Clinical Haemostasis, University Hospital Muenster, Muenster, Germany
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Preclinical Studies and Translational Applications of Intracerebral Hemorrhage. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5135429. [PMID: 28698874 PMCID: PMC5494071 DOI: 10.1155/2017/5135429] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 04/16/2017] [Accepted: 05/02/2017] [Indexed: 02/08/2023]
Abstract
Intracerebral hemorrhage (ICH) which refers to bleeding in the brain is a very deleterious condition with high mortality and disability rate. Surgery or conservative therapy remains the treatment option. Various studies have divided the disease process of ICH into primary and secondary injury, for which knowledge into these processes has yielded many preclinical and clinical treatment options. The aim of this review is to highlight some of the new experimental drugs as well as other treatment options like stem cell therapy, rehabilitation, and nanomedicine and mention some translational clinical applications that have been done with these treatment options.
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Abstract
Intracerebral hemorrhage (ICH) is a potentially devastating neurologic injury representing 10-15% of stroke cases in the USA each year. Numerous risk factors, including age, hypertension, male gender, coagulopathy, genetic susceptibility, and ethnic descent, have been identified. Timely identification, workup, and management of this condition remain a challenge for clinicians as numerous factors can present obstacles to achieving good functional outcomes. Several large clinical trials have been conducted over the prior decade regarding medical and surgical interventions. However, no specific treatment has shown a major impact on clinical outcome. Current management guidelines do exist based on medical evidence and consensus and these provide a framework for care. While management of hypertension and coagulopathy are generally considered basic tenets of ICH management, a variety of measures for surgical hematoma evacuation, intracranial pressure control, and intraventricular hemorrhage can be further pursued in the emergent setting for selected patients. The complexity of management in parenchymal cerebral hemorrhage remains challenging and offers many areas for further investigation. A systematic approach to the background, pathology, and early management of spontaneous parenchymal hemorrhage is provided.
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Chang Y, Kim YJ, Song TJ. Management of Oral Anti-Thrombotic Agents Associated Intracerebral Hemorrhage. JOURNAL OF NEUROCRITICAL CARE 2016. [DOI: 10.18700/jnc.160082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Mittal MK, LacKamp A. Intracerebral Hemorrhage: Perihemorrhagic Edema and Secondary Hematoma Expansion: From Bench Work to Ongoing Controversies. Front Neurol 2016; 7:210. [PMID: 27917153 PMCID: PMC5116572 DOI: 10.3389/fneur.2016.00210] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 11/08/2016] [Indexed: 12/30/2022] Open
Abstract
Intracerebral hemorrhage (ICH) is a medical emergency, which often leads to severe disability and death. ICH-related poor outcomes are due to primary injury causing structural damage and mass effect and secondary injury in the perihemorrhagic region over several days to weeks. Secondary injury after ICH can be due to hematoma expansion (HE) or a consequence of repair pathway along the continuum of neuroinflammation, neuronal death, and perihemorrhagic edema (PHE). This review article is focused on PHE and HE and will cover the animal studies, related human studies, and clinical trials relating to these mechanisms of secondary brain injury in ICH patients.
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Affiliation(s)
- Manoj K Mittal
- Department of Neurology, University of Kansas Medical Center , Kansas City, KS , USA
| | - Aaron LacKamp
- Department of Anesthesiology, University of Kansas Medical Center , Kansas City, KS , USA
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Sawhney GS, Ross CR, Chhabra MS, Varghese VK, Tiwari A, Chand AK. SDH with Bleeding Diathesis-a Management Protocol. Indian J Surg 2016; 78:121-4. [PMID: 27303121 DOI: 10.1007/s12262-015-1331-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 08/18/2015] [Indexed: 10/23/2022] Open
Abstract
Chronic subdural hematoma (SDH) is one of the leading causes of morbidity and mortality in elderly. Patients taking antiplatelets and/or anticoagulants have increased risk of bleeding during the perioperative period. Precise dose blood products and specific surgical technique have been effective in preventing hemorrhagic complications perioperatively. From Jan 2010 to Dec 2012, 25 patients who were on antiplatelets and/or oral anticoagulants underwent emergency surgery for chronic or acute on chronic SDH. Patients were divided into three groups: group I-patients on antiplatelets, group II-patients on oral anticoagulants, and group III-patients taking both. Of these, 21 patients underwent minicraniotomy with microsurgical membranectomy and 4 patients underwent burr hole craniostomy. Random donor platelet concentrate (RDPC) and fresh frozen plasma (FFP) were used depending on whether patient was on antiplatelets or oral anticoagulants. Results were evaluated on the basis of ease of intraoperative hemostasis, incidence of rebleeding in postoperative period, postoperative imaging, and reversal of neurological deficits. Group I, group II, and group III had 16, 4, and 5 patients, respectively. Group I received a mean of 7 units of RDPC. Group II received a mean of 4 units of FFP. Group III received a mean of 7 units of RDPC and 4 units FFPs. There was no problem with intraoperative hemostasis and no incidence of rebleeding. We suggest specific dose protocol for reversal of antiplatelet and anticoagulant effect and specific surgical procedure in preventing intraoperative bleeding and postoperative rebleeding in the above group of patients.
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Affiliation(s)
- Gurneet Singh Sawhney
- Department of Neurosurgery, St. John's Medical College, Sarjapur Road, Bangalore, 560034 India
| | - Cecil R Ross
- Department of Hematology, St. John's Medical College, Bangalore, India
| | - Manmeet Singh Chhabra
- Department of Neurosurgery, St. John's Medical College, Sarjapur Road, Bangalore, 560034 India
| | - Vineesh K Varghese
- Department of Neurosurgery, St. John's Medical College, Sarjapur Road, Bangalore, 560034 India
| | - Ashish Tiwari
- Department of Neurosurgery, St. John's Medical College, Sarjapur Road, Bangalore, 560034 India
| | - Ashis K Chand
- Department of Neurosurgery, St. John's Medical College, Sarjapur Road, Bangalore, 560034 India
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Rossaint R, Bouillon B, Cerny V, Coats TJ, Duranteau J, Fernández-Mondéjar E, Filipescu D, Hunt BJ, Komadina R, Nardi G, Neugebauer EAM, Ozier Y, Riddez L, Schultz A, Vincent JL, Spahn DR. The European guideline on management of major bleeding and coagulopathy following trauma: fourth edition. Crit Care 2016; 20:100. [PMID: 27072503 PMCID: PMC4828865 DOI: 10.1186/s13054-016-1265-x] [Citation(s) in RCA: 597] [Impact Index Per Article: 74.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 03/11/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Severe trauma continues to represent a global public health issue and mortality and morbidity in trauma patients remains substantial. A number of initiatives have aimed to provide guidance on the management of trauma patients. This document focuses on the management of major bleeding and coagulopathy following trauma and encourages adaptation of the guiding principles to each local situation and implementation within each institution. METHODS The pan-European, multidisciplinary Task Force for Advanced Bleeding Care in Trauma was founded in 2004 and included representatives of six relevant European professional societies. The group used 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 reconsidered and revised based on new scientific evidence 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. This guideline represents the fourth edition of a document first published in 2007 and updated in 2010 and 2013. RESULTS The guideline now recommends that patients be transferred directly to an appropriate trauma treatment centre and encourages use of a restricted volume replacement strategy during initial resuscitation. Best-practice use of blood products during further resuscitation continues to evolve and should be guided by a goal-directed strategy. The identification and management of patients pre-treated with anticoagulant agents continues to pose a real challenge, despite accumulating experience and awareness. The present guideline should be viewed as an educational aid to improve and standardise the care of the bleeding trauma patients across Europe and beyond. This document may also serve as a basis for local implementation. Furthermore, local quality and safety management systems need to be established to specifically assess key measures of bleeding control and outcome. CONCLUSIONS A multidisciplinary approach and adherence to evidence-based guidance are key to improving patient outcomes. The implementation of locally adapted treatment algorithms should strive to achieve measureable improvements in patient outcome.
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Affiliation(s)
- Rolf Rossaint
- />Department of Anaesthesiology, University Hospital Aachen, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Bertil Bouillon
- />Department of Trauma and Orthopaedic Surgery, Witten/Herdecke University, Cologne-Merheim Medical Centre, Ostmerheimer Strasse 200, 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, 40113 Usti nad Labem, Czech Republic
- />Department of Research and Development, Charles University in Prague, Faculty of Medicine in Hradec Kralove, Sokolska 581, 50005 Hradec Kralove, Czech Republic
- />Department of Anaesthesiology and Intensive Care, Charles University in Prague, Faculty of Medicine in Hradec Kralove, Sokolska 581, 50005 Hradec Kralove, Czech Republic
- />Department of Anaesthesia, Pain Management and Perioperative Medicine, Dalhousie University, Halifax, QE II Health Sciences Centre, 10 West Victoria, 1276 South Park St., Halifax, NS B3H 2Y9 Canada
| | - Timothy J. Coats
- />Emergency Medicine Academic Group, University of Leicester, University Road, Leicester, LE1 7RH UK
| | - 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, 94275 Le Kremlin-Bicêtre, Cedex France
| | - Enrique Fernández-Mondéjar
- />Servicio de Medicina Intensiva, Complejo Hospitalario Universitario de Granada, ctra de Jaén s/n, 18013 Granada, Spain
| | - Daniela Filipescu
- />Department of Cardiac Anaesthesia and Intensive Care, C. C. Iliescu Emergency Institute of Cardiovascular Diseases, Sos Fundeni 256-258, 022328 Bucharest, Romania
| | - Beverley J. Hunt
- />King’s College, Departments of Haematology, Pathology and Lupus, 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, Oblakova 5, 3000 Celje, Slovenia
| | - Giuseppe Nardi
- />Shock and Trauma Centre, S. Camillo Hospital, Viale Gianicolense 87, 00152 Rome, Italy
| | - Edmund A. M. Neugebauer
- />Faculty of Health - School of Medicine, Witten/Herdecke University, Ostmerheimer Strasse 200, Building 38, 51109 Cologne, Germany
| | - Yves Ozier
- />Division of Anaesthesia, Intensive Care and Emergency Medicine, Brest University Hospital, Boulevard Tanguy Prigent, 29200 Brest, France
| | - Louis Riddez
- />Department of Surgery and Trauma, Karolinska University Hospital, 171 76 Solna, Sweden
| | - Arthur Schultz
- />Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Lorenz Boehler Trauma Centre, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Jean-Louis Vincent
- />Department of Intensive Care, Erasme University Hospital, Université Libre de Bruxelles, Route de Lennik 808, 1070 Brussels, Belgium
| | - Donat R. Spahn
- />Institute of Anaesthesiology, University of Zurich and University Hospital Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
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Kimpton G, Dabbous B, Leach P. New oral anticoagulant and antiplatelet agents for neurosurgeons. Br J Neurosurg 2015; 29:614-21. [DOI: 10.3109/02688697.2015.1029433] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- George Kimpton
- Cardiff University School of Medicine, Heath Park, Cardiff, Wales, UK
| | - Bassam Dabbous
- Department of Neurosurgery, University Hospital of Wales, Cardiff, Wales, UK
| | - Paul Leach
- Department of Neurosurgery, University Hospital of Wales, Cardiff, Wales, UK
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Abstract
Management of patients with an indication for long-term oral antithrombotic therapy who have an intracerebral hemorrhage (ICH) presents a therapeutic dilemma. Should antithrombotic therapy be resumed, and if so, when, using what agent, and for whom? There is no consensus for answers to these questions. In the absence of randomized trials, management of antithrombotic therapy after ICH is based on a combination of observational data, pathophysiologic concepts, and decision analysis. At the heart of the decision is an assessment of the individual patient's risk of thromboembolism off antithrombotic therapy versus risk of ICH recurrence on antithrombotic therapy.
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Affiliation(s)
- Allyson Zazulia
- Department of Neurology, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8111, St Louis, MO 63110, USA.
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Whitfield P, Williams A, Nokes T. Managing coagulopathy and thromboprophylaxis in the neurosurgical patient. ADVANCES IN CLINICAL NEUROSCIENCE & REHABILITATION 2015. [DOI: 10.47795/stkk4952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Kam JK, Chen Z, Liew D, Yan B. Does warfarin-related intracerebral haemorrhage lead to higher costs of management? Clin Neurol Neurosurg 2014; 126:38-42. [PMID: 25201813 DOI: 10.1016/j.clineuro.2014.08.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 08/10/2014] [Accepted: 08/20/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND AND PURPOSE Warfarin-related intracerebral haemorrhage is associated with significant morbidity but long term treatment costs are unknown. Our study aimed to assess the cost of warfarin-related intracerebral haemorrhage. METHODS We included all patients with intracerebral haemorrhage between July 2006 and December 2011 at a single centre. We collected data on anticoagulant use, baseline clinical variables, discharge destinations, modified Rankin Scale at discharge and in-hospital costings. First year costings were extracted from previous studies. Multiple linear regression for treatment cost was performed with stratified analysis to assess for effect modification. RESULTS There were 694 intracerebral haemorrhage patients, with 108 (15.6%) previously on warfarin. Mean age (SD) of participants was 70.3 (13.6) and 58.5% were male. Patients on warfarin compared to those not on warfarin had significantly lower rates of discharge home (12.0% versus 18.9%, p=0.013). Overall total costs between groups were similar, $AUD 25,767 for warfarin-related intracerebral haemorrhage and $AUD 27,388 for non-warfarin intracerebral haemorrhage (p=0.353). Stratified analysis showed survivors of warfarin-related intracerebral haemorrhage had higher costs compared to those without warfarin ($AUD 33,419 versus $AUD 30,193, p<0.001) as well as increased length of stay (12 days versus 8 days, p<0.001). Inpatient mortality of patients on warfarin was associated with a shorter length of stay (p=0.001) and lower costs. CONCLUSION Survival of initial haemorrhage on warfarin was associated with increased treatment cost and length of stay but this was discounted by higher rates and earlier nature of mortality in warfarinised patients.
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Affiliation(s)
- Jeremy K Kam
- Melbourne Brain Centre, Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia
| | - Zhibin Chen
- Melbourne Brain Centre, Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia
| | - Danny Liew
- Department of Medicine, University of Melbourne, Melbourne, Australia; Melbourne EpiCentre, University of Melbourne and Melbourne Health, Melbourne, Australia
| | - Bernard Yan
- Melbourne Brain Centre, Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia; Department of Medicine, University of Melbourne, Melbourne, Australia.
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Abstract
Primary, spontaneous intracerebral hemorrhage (ICH) confers significant early mortality and long-term morbidity worldwide. Advances in acute care including investigative, diagnostic, and management strategies are important to improving outcomes for patients with ICH. Physicians caring for patients with ICH should anticipate the need for emergent blood pressure reduction, coagulopathy reversal, cerebral edema management, and surgical interventions including ventriculostomy and hematoma evacuation. This article reviews the pathogenesis and diagnosis of ICH, and details the acute management of spontaneous ICH in the critical care setting according to existing evidence and published guidelines.
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Affiliation(s)
- Sheila Chan
- Neurocritical Care Program, Department of Neurology, University of California, San Francisco, 1001 Potrero Avenue, San Francisco, CA 94110, USA
| | - J Claude Hemphill
- Neurocritical Care Program, Department of Neurology, Brain and Spinal Injury Center, San Francisco General Hospital, University of California, San Francisco, Building 1, Room 101, 1001 Potrero Avenue, San Francisco, CA 94110, USA; Department of Neurological Surgery, University of California, San Francisco, 1001 Potrero Avenue, San Francisco, CA 94110, USA.
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17
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James RF, Palys V, Lomboy JR, Lamm JR, Simon SD. The role of anticoagulants, antiplatelet agents, and their reversal strategies in the management of intracerebral hemorrhage. Neurosurg Focus 2013; 34:E6. [DOI: 10.3171/2013.2.focus1328] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
New anticoagulant and antiplatelet medications have been approved and are prescribed with increased frequency. Intracranial hemorrhage is associated with the use of these medications. Therefore, neurosurgeons need to be aware of these new medications, how they are different from their predecessors, and the strategies for the urgent reversal of their effects. Utilization of intraluminal stents by endovascular neurosurgeons has resulted in the need to have a thorough understanding of antiplatelet agents. Increased use of dabigatran, rivaroxaban, and apixaban as oral anticoagulants for the treatment of atrial fibrillation and acute deep venous thrombosis has increased despite the lack of known antidotes to these medications.
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Affiliation(s)
- Robert F. James
- 1Division of Neurosurgery, Department of Surgery, East Carolina University Brody School of Medicine, Greenville, North Carolina; and
| | - Viktoras Palys
- 2Department of Neurosurgery, Virginia Commonwealth University School of Medicine, Richmond, Virginia
| | - Jason R. Lomboy
- 1Division of Neurosurgery, Department of Surgery, East Carolina University Brody School of Medicine, Greenville, North Carolina; and
| | - J. Richard Lamm
- 1Division of Neurosurgery, Department of Surgery, East Carolina University Brody School of Medicine, Greenville, North Carolina; and
| | - Scott D. Simon
- 2Department of Neurosurgery, Virginia Commonwealth University School of Medicine, Richmond, Virginia
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Intracerebral haemorrhage associated with antithrombotic treatment: translational insights from experimental studies. Lancet Neurol 2013; 12:394-405. [PMID: 23518332 DOI: 10.1016/s1474-4422(13)70049-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Little is known about the pathophysiology of intracerebral haemorrhage that occurs during anticoagulant treatment. In observational studies, investigators have reported larger haematoma volumes and worse functional outcome in these patients than in those with intracerebral haemorrhage and a normal coagulation status. The need to prevent extensive haematoma enlargement by rapid reversal of the anticoagulation seems intuitive, although no evidence is available from randomised clinical trials. New oral anticoagulants, such as the direct thrombin inhibitor dabigatran and the factor Xa inhibitor rivaroxaban, have been approved recently; however, intracerebral haemorrhage during dabigatran or rivaroxaban anticoagulation has not been characterised, and whether anticoagulation reversal can be beneficial in this scenario is unknown. In a translational approach, new experimental models have been developed to study anticoagulation-associated intracerebral haemorrhage in more detail and to test treatment strategies. Vitamin k antagonists enlarge haematoma volumes and worsen functional outcome in animal models. Rapid reversal of anticoagulation in the experimental setting prevents prolonged haematoma expansion and improves outcome. The new oral anticoagulants increase intracerbral haemorrhage volumes less than does warfarin. Haemostatic approaches that have been used for vitamin k-associated intracerebral haemorrhage also seem to be effective in intracerebral haemorrhage associated with the new anticoagulants. These experimental studies are valuable for filling gaps in knowledge, but the results need careful translation into routine clinical practice.
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