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Camilleri E, Kruijt M, den Exter PL, Cannegieter SC, van Rein N, Cobbaert CM, van Vlijmen BJM, Ruhaak LR. Quantitative protein mass spectrometry for multiplex measurement of coagulation and fibrinolytic proteins towards clinical application: What, why and how? Thromb Res 2024; 241:109090. [PMID: 39032389 DOI: 10.1016/j.thromres.2024.109090] [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: 05/14/2024] [Revised: 06/20/2024] [Accepted: 07/03/2024] [Indexed: 07/23/2024]
Abstract
Plasma proteins involved in coagulation and fibrinolysis are essential to hemostasis. Consequently, their circulating levels and functionality are critical in bleeding and thrombosis development. Well-established laboratory tests to assess these are available; however, said tests do not allow high multiplicity, require large volumes of plasma and are often costly. A novel technology to quantify plasma proteins is quantitative protein mass spectrometry (QPMS). Aided by stable isotope-labeled internal standards a large number of proteins can be quantified in one single analytical run requiring <30 μL of plasma. This provides an opportunity to improve insight in the etiology and prognosis of bleeding and thrombotic disorders, in which the balance between different proteins plays a crucial role. This manuscript aims to give an overview of the QPMS potential applications in thrombosis and hemostasis research (quantifying the 38 proteins assigned to coagulation and fibrinolysis by the KEGG database), but also to explore the potential and hurdles if designed for clinical practice. Advantages and limitations of QPMS are described and strategies for improved analysis are proposed, using as an example the test requirements for antithrombin. Application of this technology in the future could represent a step towards individualized patient care.
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Affiliation(s)
- Eleonora Camilleri
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Mirjam Kruijt
- Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Paul L den Exter
- Department of Internal Medicine, Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - Suzanne C Cannegieter
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands; Department of Internal Medicine, Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Nienke van Rein
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands; Department of Pharmacy, Leiden University Medical Center, Leiden, the Netherlands
| | - Christa M Cobbaert
- Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Bart J M van Vlijmen
- Department of Internal Medicine, Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, Leiden, the Netherlands.
| | - L Renee Ruhaak
- Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Palareti G, Santagata D, De Ponti C, Ageno W, Prandoni P. Anticoagulation and compression therapy for proximal acute deep vein thrombosis. VASA 2024. [PMID: 39017921 DOI: 10.1024/0301-1526/a001138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
The treatment of proximal deep vein thrombosis (DVT) of the lower limbs includes an initial management phase, covering the first 1 to 3 weeks, a primary treatment phase, lasting a minimum of 3 months, and a secondary treatment phase for those patients requiring continuing anticoagulation beyond the first 3 to 6 months. During the initial phase most patients with DVT can be managed as outpatients. Exclusion criteria for home treatment include high risk of bleeding, limb threatening DVT or other conditions requiring hospitalisation. Anticoagulant drugs represent the mainstay of treatment and include parenteral drugs such as unfractionated heparin or low molecular weight heparin, and oral drugs such as the vitamin K antagonists and the direct oral anticoagulants (DOACs). DOACs are currently recommended as the first line of treatment for proximal DVT of the lower limbs, with no preference for one DOAC over another. Factors to consider when choosing the anticoagulant strategy include, among others, renal and liver function, underlying diseases such as cancer or the antiphospholipid syndrome, and patient preferences. Indefinite duration of anticoagulation beyond the first 3 to 6 months is recommended for patients with unprovoked DVT and patients with permanent, chronic risk factors. Two DOACs, namely apixaban and rivaroxaban, can be administered at low doses for the secondary prevention of DVT. Elastic compression stockings (ECS) have been used for decades in patients with proximal DVT with the aim of counteracting the venous hypertension generated by the vascular disorder and reducing leg edema and to prevent the post-thrombotic syndrome.
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Affiliation(s)
| | - Davide Santagata
- Dipartimento di Medicina e Chirurgia, University of Insubria, Varese, Italy
| | - Chiara De Ponti
- Dipartimento di Medicina e Chirurgia, University of Insubria, Varese, Italy
| | - Walter Ageno
- Dipartimento di Medicina e Chirurgia, University of Insubria, Varese, Italy
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Burggraaf-van Delft JLI, van Rein N, Bemelmans RHH, van den Berg JWK, Bruggeman CY, Cloos-van Balen M, Coppens M, Eefting M, Ende-Verhaar Y, van Es N, van Guldener C, de Jong WK, Kleijwegt F, Koster T, Kroon C, Kuipers S, Leentjens J, Luijten D, Mairuhu ATA, Meijer K, van de Ree MA, Roos R, Schrover I, Swart-Heikens J, van der Velden AWG, van den Akker-van Marle EM, le Cessie S, Geersing GJ, Middeldorp S, Huisman MV, Klok FA, Cannegieter SC. Tailored anticoagulant treatment after a first venous thromboembolism: protocol of the Leiden Thrombosis Recurrence Risk Prevention (L-TRRiP) study - cohort-based randomised controlled trial. BMJ Open 2024; 14:e078676. [PMID: 38521524 PMCID: PMC10961563 DOI: 10.1136/bmjopen-2023-078676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 02/06/2024] [Indexed: 03/25/2024] Open
Abstract
INTRODUCTION Patients with a first venous thromboembolism (VTE) are at risk of recurrence. Recurrent VTE (rVTE) can be prevented by extended anticoagulant therapy, but this comes at the cost of an increased risk of bleeding. It is still uncertain whether patients with an intermediate recurrence risk or with a high recurrence and high bleeding risk will benefit from extended anticoagulant treatment, and whether a strategy where anticoagulant duration is tailored on the predicted risks of rVTE and bleeding can improve outcomes. The aim of the Leiden Thrombosis Recurrence Risk Prevention (L-TRRiP) study is to evaluate the outcomes of tailored duration of long-term anticoagulant treatment based on individualised assessment of rVTE and major bleeding risks. METHODS AND ANALYSIS The L-TRRiP study is a multicentre, open-label, cohort-based, randomised controlled trial, including patients with a first VTE. We classify the risk of rVTE and major bleeding using the L-TRRiP and VTE-BLEED scores, respectively. After 3 months of anticoagulant therapy, patients with a low rVTE risk will discontinue anticoagulant treatment, patients with a high rVTE and low bleeding risk will continue anticoagulant treatment, whereas all other patients will be randomised to continue or discontinue anticoagulant treatment. All patients will be followed up for at least 2 years. Inclusion will continue until the randomised group consists of 608 patients; we estimate to include 1600 patients in total. The primary outcome is the combined incidence of rVTE and major bleeding in the randomised group after 2 years of follow-up. Secondary outcomes include the incidence of rVTE and major bleeding, functional outcomes, quality of life and cost-effectiveness in all patients. ETHICS AND DISSEMINATION The protocol was approved by the Medical Research Ethics Committee Leiden-Den Haag-Delft. Results are expected in 2028 and will be disseminated through peer-reviewed journals and during (inter)national conferences. TRIAL REGISTRATION NUMBER NCT06087952.
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Affiliation(s)
| | - Nienke van Rein
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Remy H H Bemelmans
- Department of Internal Medicine, Ziekenhuis Gelderse Vallei, Ede, Gelderland, The Netherlands
| | | | - Coty Y Bruggeman
- Department of Internal Medicine, Martini Ziekenhuis, Groningen, Groningen, The Netherlands
| | - Marissa Cloos-van Balen
- Department of Internal Medicine, Groene Hart Ziekenhuis, Gouda, Zuid-Holland, The Netherlands
| | - Michiel Coppens
- Department of Vascular Medicine, Amsterdam UMC Location AMC, Amsterdam, Noord-Holland, The Netherlands
- Pulmonary Hypertension & Thrombosis, Amsterdam Cardiovascular Sciences, Amsterdam, Noord-Holland, The Netherlands
| | - Matthijs Eefting
- Department of Internal Medicine, Ikazia Ziekenhuis, Rotterdam, Zuid-Holland, The Netherlands
| | - Yvonne Ende-Verhaar
- Department of Internal Medicine, Medisch Centrum Haaglanden, Den Haag, Zuid-Holland, The Netherlands
| | - Nick van Es
- Department of Vascular Medicine, Amsterdam UMC Location AMC, Amsterdam, Noord-Holland, The Netherlands
- Pulmonary Hypertension & Thrombosis, Amsterdam Cardiovascular Sciences, Amsterdam, Noord-Holland, The Netherlands
| | - Coen van Guldener
- Department of Internal Medicine, Amphia Ziekenhuis, Breda, North Brabant, The Netherlands
| | - Wouter K de Jong
- Department of Pulmonology, Ziekenhuis Gelderse Vallei, Ede, Gelderland, The Netherlands
| | - Fleur Kleijwegt
- Department of Internal Medicine, Rode Kruis Ziekenhuis, Beverwijk, Noord-Holland, The Netherlands
| | - Ted Koster
- Department of Internal Medicine, Groene Hart Ziekenhuis, Gouda, Zuid-Holland, The Netherlands
| | - Cees Kroon
- Department of Internal Medicine, Ziekenhuis Nij Smellinghe, Drachten, Friesland, The Netherlands
| | - Saskia Kuipers
- Department of Internal Medicine, ADRZ, Goes, Zeeland, The Netherlands
| | - Jenneke Leentjens
- Department of Internal Medicine, Radboud university medical center, Nijmegen, Gelderland, The Netherlands
| | - Dieuwke Luijten
- Department of Medicine-Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Albert T A Mairuhu
- Department of Internal Medicine, Haga Hospital, Den Haag, Zuid-Holland, The Netherlands
| | - Karina Meijer
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Marcel A van de Ree
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Rick Roos
- Department of Internal Medicine, Haga Hospital, Den Haag, Zuid-Holland, The Netherlands
| | - Ilse Schrover
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Janneke Swart-Heikens
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | | | | | - Saskia le Cessie
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
- Department of Clinical Epidemiology, Leids Universitair Medisch Centrum, Leiden, The Netherlands
| | - Geert-Jan Geersing
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Saskia Middeldorp
- Department of Internal Medicine, Radboud university medical center, Nijmegen, Gelderland, The Netherlands
| | - Menno V Huisman
- Department of Medicine-Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Frederikus A Klok
- Department of Medicine-Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Suzanne C Cannegieter
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
- Department of Medicine-Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
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Chopard R, Bertoletti L, Piazza G, Jimenez D, Barillari G, Llamas P, Rubio CM, Aujayeb A, Monreal M, Meneveau N. External validation of the PE-SARD risk score for predicting early bleeding in acute pulmonary embolism in the RIETE Registry. Thromb Res 2024; 235:22-31. [PMID: 38295598 DOI: 10.1016/j.thromres.2024.01.013] [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: 09/11/2023] [Revised: 01/04/2024] [Accepted: 01/17/2024] [Indexed: 02/02/2024]
Abstract
INTRODUCTION The PE-SARD score (syncope, anemia, renal dysfunction) was developed to predict the risk of major bleeding in the acute phase of pulmonary embolism (PE). METHODS We analyzed data from 50,686 patients with acute PE included in the RIETE registry to externally validate the PE-SARD score. We calculated the overall reliability of the PE-SARD score, as well as discrimination and calibration for predicting the risk of major bleeding at 30 days. The performance of PE-SARD was compared to the BACS and PE-CH models. RESULTS During the first 30 days, 640 patients (1.3 %) had a major bleeding event. The incidence of major bleeding within 30 days was 0.6 % in the PE-SARD-defined low-risk group, 1.5 % in the intermediate-risk group, and 2.5 % in the high-risk group, for an OR of 2.22 (95 % CI, 2.02-2.43) for the intermediate-risk group (vs low-risk group), and 3.94 for the high-risk group (vs low-risk group). The corresponding sensitivity was 81.1 % (intermediate/high vs low risk), and specificity was 85.9 % (95 % CI, 85.8-86.1) (low/intermediate vs high risk). The applicability of PE-SARD was consistent across clinically relevant patient subgroups and over shorter time periods of follow-up (i.e., 3 and 7 days). The C-index was 0.654 and calibration was excellent. The PE-SARD bleeding score improved the major bleeding risk prediction compared with the BACS and PE-CH scores. CONCLUSIONS The PE-SARD score identifies PE patients with a higher risk of bleeding, which could assist providers for potentially adjusting PE management, in a framework of shared decision-making with individual patients.
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Affiliation(s)
- Romain Chopard
- Department of Cardiology, University Hospital Besançon, 25000 Besançon, France; EA3920, University of Franche-Comté, 25000 Besançon, France; F-CRIN, INNOVTE network, France.
| | - Laurent Bertoletti
- F-CRIN, INNOVTE network, France; Université Jean Monnet Saint-Étienne, CHU Saint-Étienne, Mines Saint-Etienne, INSERM, SAINBIOSE U1059, CIC 1408, Département of Médecine Vasculaire et Thérapeutique, 42055 Saint-Etienne, France
| | - Gregory Piazza
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - David Jimenez
- Respiratory Department, Hospital Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain; CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Medicine Department, Universidad de Alcalá, (IRYCIS) Madrid, Spain
| | | | - Pilar Llamas
- Department of Hematology, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - Carmen Mª Rubio
- Department of Internal Medicine, Hospital Alto Guadalquivir Andújar, Jaén, Spain
| | - Avinash Aujayeb
- Northumbria Healthcare Foundation trust, Newcastle, United Kingdom
| | - Manuel Monreal
- CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Cátedra de Enfermedad Tromboembólica, Universidad Católica de Murcia, Murcia, Spain
| | - Nicolas Meneveau
- Department of Cardiology, University Hospital Besançon, 25000 Besançon, France; EA3920, University of Franche-Comté, 25000 Besançon, France; F-CRIN, INNOVTE network, France
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Kyrle PA, Eischer L, Šinkovec H, Gressenberger P, Gary T, Brodmann M, Heinze G, Eichinger S. The Vienna Prediction Model for identifying patients at low risk of recurrent venous thromboembolism: a prospective cohort study. Eur Heart J 2024; 45:45-53. [PMID: 37769352 PMCID: PMC10757868 DOI: 10.1093/eurheartj/ehad618] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 08/16/2023] [Accepted: 09/07/2023] [Indexed: 09/30/2023] Open
Abstract
BACKGROUND AND AIMS Patients with unprovoked venous thromboembolism (VTE) have a high recurrence risk, and guidelines suggest extended-phase anticoagulation. Many patients never experience recurrence but are exposed to bleeding. The aim of this study was to assess the performance of the Vienna Prediction Model (VPM) and to evaluate if the VPM accurately identifies these patients. METHODS In patients with unprovoked VTE, the VPM was performed 3 weeks after anticoagulation withdrawal. Those with a predicted 1-year recurrence risk of ≤5.5% were prospectively followed. Study endpoint was recurrent VTE over 2 years. RESULTS A total of 818 patients received anticoagulation for a median of 3.9 months. 520 patients (65%) had a predicted annual recurrence risk of ≤5.5%. During a median time of 23.9 months, 52 patients had non-fatal recurrence. The recurrence risk was 5.2% [95% confidence interval (CI) 3.2-7.2] at 1 year and 11.2% (95% CI 8.3-14) at 2 years. Model calibration was adequate after 1 year. The VPM underestimated the recurrence risk of patients with a 2-year recurrence rate of >5%. In a post-hoc analysis, the VPM's baseline hazard was recalibrated. Bootstrap validation confirmed an ideal ratio of observed and expected recurrence events. The recurrence risk was highest in men with proximal deep-vein thrombosis or pulmonary embolism and lower in women regardless of the site of incident VTE. CONCLUSIONS In this prospective evaluation of the performance of the VPM, the 1-year rate of recurrence in patients with unprovoked VTE was 5.2%. Recalibration improved identification of patients at low recurrence risk and stratification into distinct low-risk categories.
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Affiliation(s)
- Paul A Kyrle
- Division of Hematology and Hemostasis, Department of Medicine I, Medical University of Vienna, Vienna A-1090, Austria
- Karl Landsteiner Institute of Thrombosis Research, Vienna A-1020, Austria
| | - Lisbeth Eischer
- Division of Hematology and Hemostasis, Department of Medicine I, Medical University of Vienna, Vienna A-1090, Austria
| | - Hana Šinkovec
- Center for Medical Statistics, Informatics and Intelligent Systems, Institute of Clinical Biometrics, Medical University of Vienna, Vienna A-1090, Austria
| | - Paul Gressenberger
- Division of Angiology, Department of Medicine, Medical University of Graz, Graz A-8010, Austria
| | - Thomas Gary
- Division of Angiology, Department of Medicine, Medical University of Graz, Graz A-8010, Austria
| | - Marianne Brodmann
- Division of Angiology, Department of Medicine, Medical University of Graz, Graz A-8010, Austria
| | - Georg Heinze
- Center for Medical Statistics, Informatics and Intelligent Systems, Institute of Clinical Biometrics, Medical University of Vienna, Vienna A-1090, Austria
| | - Sabine Eichinger
- Division of Hematology and Hemostasis, Department of Medicine I, Medical University of Vienna, Vienna A-1090, Austria
- Karl Landsteiner Institute of Thrombosis Research, Vienna A-1020, Austria
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Chiasakul T, Bauer KA. The dos, don'ts, and nuances of thrombophilia testing. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2023; 2023:593-599. [PMID: 38066917 PMCID: PMC10727021 DOI: 10.1182/hematology.2023000491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Considerable progress has been made in elucidating genetic and biologic risk factors for venous thromboembolism (VTE). Despite being able to identify heritable defects in a substantial proportion of patients with VTE, testing has not, in general, proven useful in management. Despite efforts to reduce inappropriate testing, it often falls to the hematologist to consult on patients having undergone thrombophilia testing. Through a series of cases, we discuss how D-dimer testing can be helpful in VTE recurrence risk stratification in younger women as well as how to approach patients with persistently elevated D-dimer levels in the absence of thrombosis. While elevated factor VIII coagulant activity levels are a significant risk factor for a first episode of VTE, its biologic basis is not fully understood, and studies have not shown it to be a useful predictor of recurrence. Abnormal results of genetic tests for methylene tetrahydrofolate reductase or plasminogen activator 1 promoter polymorphisms may be encountered, which carry little if any thrombotic risk and should never be ordered. We also discuss protein S deficiency, the most difficult of the hereditary thrombophilias to diagnose due to a wider "normal" range in the general population as compared with protein C, the presence of both free and bound forms in plasma, and the characteristics of the various assays in use. We also present a rare type of protein C deficiency that can be missed by functional assays using an amidolytic rather than a clotting end point.
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Affiliation(s)
- Thita Chiasakul
- Center of Excellence in Translational Hematology, Division of Hematology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Kenneth A Bauer
- Division of Hematology and Hematologic Malignancies, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
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Becattini C. Provoked vs minimally provoked vs unprovoked VTE: does it matter? HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2023; 2023:600-605. [PMID: 38066936 PMCID: PMC10727063 DOI: 10.1182/hematology.2023000492] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Venous thromboembolism (VTE) is a multifactorial disease, and its risk depends on exposure to risk factors and predisposing conditions. Based on their strength of association with a VTE episode, risk factors are classified as major or minor and determined using a temporal pattern to be transient or persistent. All patients with VTE should receive anticoagulant treatment for at least 3 months in the absence of an absolute contraindication. Beyond this period, selected patients may be candidates for an extended phase of anticoagulation aimed at secondary VTE prevention. The risk of recurrent VTE if anticoagulation is discontinued is probably the main driver of decision-making regarding extended treatment. The risk of recurrence after VTE associated with major risk factors is low if the risk factor is no longer present. In this case, treatment can be discontinued. If the major risk factor is persistent, anticoagulation should be continued. After VTE occurring in the absence of risk factors, anticoagulation should probably be continued indefinitely if the risk for bleeding is low and preferably with minimal effective doses of anticoagulants. VTE occurring after exposure to minor risk factors is probably the most challenging situation, especially if the clinical manifestation was acute pulmonary embolism. Understanding the actual role of minor risk factors in the occurrence of VTE helps in estimating the risk of recurrence and avoiding the dangers associated with unnecessary anticoagulation. The availability of safer strategies for anticoagulation could allow personalized strategies for secondary prevention of VTE.
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Affiliation(s)
- Cecilia Becattini
- Internal and Cardiovascular Medicine, Stroke Unit, University of Perugia, Perugia, Italy
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8
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Han J, van Hylckama Vlieg A, Rosendaal FR. Genomic science of risk prediction for venous thromboembolic disease: convenient clarification or compounding complexity. J Thromb Haemost 2023; 21:3292-3303. [PMID: 37838557 DOI: 10.1016/j.jtha.2023.09.006] [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: 08/27/2023] [Accepted: 09/07/2023] [Indexed: 10/16/2023]
Abstract
Venous thromboembolism (VTE) refers to abnormal blood clots in veins occurring in 1 to 2 per 1000 individuals every year. While anticoagulant treatment can prevent VTE, it increases the risk of bleeding. This emphasizes the importance of identifying individuals with a high risk of VTE and providing prophylactic interventions to these individuals to reduce both VTE and bleeding risks. Current risk assessment of VTE is based on the combination of mainly clinical risk factors. With the identification of an increasing number of genetic variants associated with the risk of VTE, the addition of genetic findings to clinical prediction models can improve risk prediction for VTE. Especially for individuals in high-risk situations, the added value of genetic findings to clinical prediction models may have benefits such as better prophylaxis of VTE and the reduced side effects of bleeding from unnecessary treatment. Nevertheless, the question of whether these models will eventually have clinical utility remains to be proven. Here, we review the current state of knowledge on genetic risk factors for VTE, explore genetic prediction models for VTE, and discuss their clinical implications and challenges.
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Affiliation(s)
- Jihee Han
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Frits R Rosendaal
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.
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9
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Ten Cate V, Rapp S, Schulz A, Pallares Robles A, Jurk K, Koeck T, Espinola-Klein C, Halank M, Seyfarth HJ, Beutel ME, Schuster AK, Marini F, Hobohm L, Lankeit M, Lackner KJ, Ruf W, Münzel T, Andrade-Navarro MA, Prochaska JH, Konstantinides SV, Wild PS. Circulating microRNAs predict recurrence and death following venous thromboembolism. J Thromb Haemost 2023; 21:2797-2810. [PMID: 37481073 DOI: 10.1016/j.jtha.2023.07.010] [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: 01/25/2023] [Revised: 06/10/2023] [Accepted: 07/07/2023] [Indexed: 07/24/2023]
Abstract
BACKGROUND Recurrent events frequently occur after venous thromboembolism (VTE) and remain difficult to predict based on established genetic, clinical, and proteomic contributors. The role of circulating microRNAs (miRNAs) has yet to be explored in detail. OBJECTIVES To identify circulating miRNAs predictive of recurrent VTE or death, and to interpret their mechanistic involvement. METHODS Data from 181 participants of a cohort study of acute VTE and 302 individuals with a history of VTE from a population-based cohort were investigated. Next-generation sequencing was performed on EDTA plasma samples to detect circulating miRNAs. The endpoint of interest was recurrent VTE or death. Penalized regression was applied to identify an outcome-relevant miRNA signature, and results were validated in the population-based cohort. The involvement of miRNAs in coregulatory networks was assessed using principal component analysis, and the associated clinical and molecular phenotypes were investigated. Mechanistic insights were obtained from target gene and pathway enrichment analyses. RESULTS A total of 1950 miRNAs were detected across cohorts after postprocessing. In the discovery cohort, 50 miRNAs were associated with recurrent VTE or death (cross-validated C-index, 0.65). A weighted miRNA score predicted outcome over an 8-year follow-up period (HRSD, 2.39; 95% CI, 1.98-2.88; P < .0001). The independent validation cohort validated 20 miRNAs (ORSD for score, 3.47; 95% CI, 2.37-5.07; P < .0001; cross-validated-area under the curve, 0.61). Principal component analysis revealed 5 miRNA networks with distinct relationships to clinical phenotype and outcome. Mapping of target genes indicated regulation via transcription factors and kinases involved in signaling pathways associated with fibrinolysis. CONCLUSION Circulating miRNAs predicted the risk of recurrence or death after VTE over several years, both in the acute and chronic phases.
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Affiliation(s)
- Vincent Ten Cate
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Clinical Epidemiology and Systems Medicine, Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Partner Site Rhine-Main, German Centre for Cardiovascular Research (DZHK), Mainz, Germany. https://twitter.com/cesm_mainz
| | - Steffen Rapp
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Andreas Schulz
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Alejandro Pallares Robles
- Clinical Epidemiology and Systems Medicine, Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Kerstin Jurk
- Clinical Epidemiology and Systems Medicine, Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Partner Site Rhine-Main, German Centre for Cardiovascular Research (DZHK), Mainz, Germany
| | - Thomas Koeck
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Christine Espinola-Klein
- Department of Angiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Michael Halank
- Department of Internal Medicine I and Pulmonology, Carl Gustav Carus Hospital, University of Dresden, Dresden, Germany
| | | | - Manfred E Beutel
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Alexander K Schuster
- Department of Ophthalmology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Federico Marini
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Lukas Hobohm
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Department of Cardiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Mareike Lankeit
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Department of Internal Medicine and Cardiology, Campus Virchow Klinikum (CVK), Charité - University Medicine Berlin, Germany
| | - Karl J Lackner
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Wolfram Ruf
- Partner Site Rhine-Main, German Centre for Cardiovascular Research (DZHK), Mainz, Germany; Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Department of Immunology and Microbiology, Scripps Research, La Jolla, California, USA
| | - Thomas Münzel
- Partner Site Rhine-Main, German Centre for Cardiovascular Research (DZHK), Mainz, Germany; Department of Cardiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Miguel A Andrade-Navarro
- Institute of Organismic and Molecular Evolution, Faculty of Biology, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Jürgen H Prochaska
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Clinical Epidemiology and Systems Medicine, Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Partner Site Rhine-Main, German Centre for Cardiovascular Research (DZHK), Mainz, Germany
| | - Stavros V Konstantinides
- Department of Internal Medicine and Cardiology, Campus Virchow Klinikum (CVK), Charité - University Medicine Berlin, Germany
| | - Philipp S Wild
- Preventive Cardiology and Preventive Medicine, Center for Cardiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Clinical Epidemiology and Systems Medicine, Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany; Partner Site Rhine-Main, German Centre for Cardiovascular Research (DZHK), Mainz, Germany; Institute of Molecular Biology (IMB), Mainz, Germany.
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10
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Lowe G, Wu O, van Hylckama Vlieg A, Folsom A, Rosendaal F, Woodward M. Plasma levels of coagulation factors VIII and IX and risk of venous thromboembolism: Systematic review and meta-analysis. Thromb Res 2023; 229:31-39. [PMID: 37390526 PMCID: PMC10881212 DOI: 10.1016/j.thromres.2023.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 07/02/2023]
Abstract
INTRODUCTION The associations of plasma factor VIII (FVIII) and factor IX (FIX) levels with risk of venous thromboembolism (VTE) are not well defined. We performed a systematic review and meta-analysis of these associations. METHODS Random effects inverse-variance weighted meta-analysis was used to estimate pooled odds ratios for comparisons across equal quartiles of the distributions and 90 % thresholds (higher versus lower), and for testing linear trends. RESULTS Among 15 studies (5327 cases) the pooled odds ratio of VTE for the fourth versus first quarter was 3.92 (95 % confidence interval 1.61, 5.29) for FVIII level; and among 7 studies (3498 cases) 1.57 (1.32, 1.87) for FIX level. Comparing factor levels above, versus below, the 90th percentile, the estimated pooled odds ratios were 3.00 (2.10, 4.30) for FVIII; 1.77 (1.22, 2.56) for FIX; and 4.56 (2.73, 7.63) for both FVIII and FIX considered jointly. CONCLUSIONS We confirm increases in risk of VTE across population distributions of FVIII and FIX levels. Levels above the 90th percentile have almost twice the risk for FIX level compared to levels below; three-fold risk for FVIII level; and almost five-fold risk for both FVIII and FIX levels elevated.
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Affiliation(s)
- Gordon Lowe
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK.
| | - Olivia Wu
- Health Economics and Health Technology Assessment Research Unit, University of Glasgow, Glasgow, UK
| | | | - Aaron Folsom
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, USA
| | - Frits Rosendaal
- Department of Clinical Epidemiology, Leiden University Medical Center, the Netherlands
| | - Mark Woodward
- The George Institute for Global Health, University of New South Wales, Sydney, Australia; The George Institute for Global Health, Imperial College London, UK
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Role of factor VIII, IX, and XI in venous thrombosis recurrence risk in adults and children: A systematic review. Res Pract Thromb Haemost 2023; 7:100064. [PMID: 36852262 PMCID: PMC9958483 DOI: 10.1016/j.rpth.2023.100064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/05/2022] [Accepted: 01/03/2023] [Indexed: 02/05/2023] Open
Abstract
Background Predicting recurrent venous thromboembolic events (VTEs) is challenging in clinical practice for both adults and children, but it is relevant for clinical management. Identifying laboratory risk factors for VTE recurrence may aid in clinical decision-making. Objective The goal of this systematic review is to investigate the predictive role of FVIII, IX, or XI in recurrent VTE in adult and pediatric patients with a first VTE. Methods A systematic review of the published literature was conducted in databases MEDLINE In-Process, Other Nonindexed Citations, MEDLINE Epub Ahead of Print, EMBASE Classic + EMBASE (OvidSP), and Cochrane (Wiley). We included observational and interventional studies that comprised adults or children with a first VTE, FVIII, FIX, and/or FXI and objectively confirmed VTE recurrence. The quality in prognosis studies tool was used to assess the risk of bias. Results We identified 2177 unique studies, of which 19 were included (18 for adults and 1 for children). The risk of bias was overall low to moderate. The studies were heterogenous with regards to population (provoked/unprovoked primary VTE), exposure (type of assay and cut-off values), and statistical analysis results (measures of association and modeling strategy). In adults, contradictory evidence was found for FVIII and FXI as outcome predictors, while no research could establish if FIX predicts VTE recurrence. Data in pediatrics were limited. Given the extensive heterogeneity of the literature, a meta-analysis was not performed. Conclusions Overall, there is contradictory evidence that FVIII, FIX, or FXI predict recurrent VTE in adults and children. Addressing heterogeneity is a relevant aspect to consider in future studies investigating prognostic factors for VTE recurrence.
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12
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Matilainen S, Kask G, Nieminen J, Lassila R, Laitinen M. Preoperative coagulation biomarkers associate with survival and pulmonary embolism after surgical treatment of non-spinal skeletal metastases. Thromb J 2022; 20:70. [PMID: 36419117 PMCID: PMC9682700 DOI: 10.1186/s12959-022-00431-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 11/13/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Thrombotic complications are synergistic and associated with orthopedic procedures, trauma, and malignancy. Because cancer enhances coagulation activity and vice versa, we assessed preoperative biomarkers for survival and complications after treatment of pathologic fractures in non-spinal skeletal metastases. PATIENTS/METHODS Our study population comprised 113 actual or impending pathologic fractures in 100 patients admitted to two referral centers. Laboratory variables were collected retrospectively from patient records and analyzed related to incidence of pulmonary embolism (PE) and mortality (Kaplan-Meier and Cox regression analyses and biomarker quartiles). RESULTS Preoperative coagulation variables were high without exceptions. PE occurred in 12 patients at 36 post-operative days at incidence of 11% in the lower and 13% in the upper extremity fractures. Patients with fibrinogen exceeding 5 g/l (log-rank 0.022) developed PE earlier (5 to 15 days postoperatively) than others. Also, mean patient survival with normal fibrinogen range (2-4 g/l) was 34 months, whereas it halved upon elevated fibrinogen (log-rank p = 0.009). Survival in patients with FVIII levels under 326 IU/dl (Q3) was 22 months, but only 7 months if FVIII exceeded 326 IU/dl (log-rank p = 0.002). Combined elevated fibrinogen and FVIII predicted survival: for patients with levels below threshold limits was 22 months versus only 7 months when both variables exceeded the ranges (log-rank p < 0.001). Multivariate analysis to control confounders supported an independent role of fibrinogen and FVIII for survival. CONCLUSIONS Our study has established fibrinogen and FVIII as potential preoperative contributors of survival and complications after treatment of metastatic fractures. These results highlight the need for novel anticoagulation and thromboprophylaxis strategies among these patients.
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Affiliation(s)
- Sanna Matilainen
- grid.7737.40000 0004 0410 2071Department of Orthopedics and Traumatology, Lohja Hospital, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Gilber Kask
- grid.7737.40000 0004 0410 2071Department of Orthopedics and Traumatology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Jyrki Nieminen
- grid.459422.c0000 0004 0639 5429Coxa, Hospital for Joint Replacement, Tampere, Finland
| | - Riitta Lassila
- grid.7737.40000 0004 0410 2071Coagulation Disorders Unit, Department of Hematology, Comprehensive Cancer Center, Research Program Unit of Systems Oncology, Oncosys University of Helsinki, Helsinki, Finland
| | - Minna Laitinen
- grid.7737.40000 0004 0410 2071Department of Orthopedics and Traumatology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland ,grid.15485.3d0000 0000 9950 5666Department of Orthopaedics and Traumatology, Bone Tumour Unit, HUS, Helsinki University Hospital, Topeliuksenkatu 5, P.O.Box 266, FI-00029, Helsinki, Finland
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13
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Lidstrom SC, Wiggins KL, Harrington LB, McKnight B, Blondon M, Smith NL. Incident thrombus location and predicting risk of recurrent venous thromboembolism. Res Pract Thromb Haemost 2022; 6:e12762. [PMID: 35910943 PMCID: PMC9326286 DOI: 10.1002/rth2.12762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 05/19/2022] [Accepted: 06/07/2022] [Indexed: 12/02/2022] Open
Abstract
Background Understanding venous thromboembolism (VTE) recurrence risk is central to determining the appropriate treatment course. Whether this risk varies after discontinuing anticoagulation or overall by type of incident event (pulmonary embolism [PE] vs deep vein thrombosis [DVT]) and by the detailed location of the DVT needs further clarification. Methods In this population-based inception cohort of incident VTE cases with follow-up by electronic health record review, incident DVT was categorized as distal, popliteal, or iliofemoral. We used the Fine-Gray regression model to describe the predictive association of the thrombus location with the risk of recurrence before death. Results Among 2766 participants with an incident event from 2002 to 2010, 1713 (62%) ceased anticoagulation and were followed for recurrent events; 301 events were observed during the 4.5 years of follow-up. Relative to participants with an incident thrombus in an iliofemoral location and no PE, those with a thrombus in a popliteal location and no PE had a similar risk of recurrence (adjusted subdistribution hazard ratio [aSHR], 0.82 [95% confidence interval (CI), 0.57-1.19]), while those with a thrombus in a distal location and no PE and those with a thrombus that included a PE had lower risk of recurrence: aSHR, 0.34 (95% CI, 0.20-0.57); and aSHR, 0.58 (95% CI 0.45-0.76), respectively. Conclusions The findings of this population-based inception cohort confirm that the risk of recurrent VTE after discontinuing anticoagulants is similar after iliofemoral and popliteal DVT but is lower after distal DVT. Recurrence may be lower after PE than proximal DVT.
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Affiliation(s)
- Sara C. Lidstrom
- Department of EpidemiologyUniversity of WashingtonSeattleWashingtonUSA
| | - Kerri L. Wiggins
- Department of MedicineUniversity of WashingtonSeattleWashingtonUSA
| | - Laura B. Harrington
- Department of EpidemiologyUniversity of WashingtonSeattleWashingtonUSA
- Kaiser Permanente Washington Health Research InstituteSeattleWashingtonUSA
- Department of Health Systems ScienceKaiser Permanente Bernard J. Tyson School of MedicinePasadenaCaliforniaUSA
- Department of NutritionHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
| | - Barbara McKnight
- Department of BiostatisticsUniversity of WashingtonSeattleWashingtonUSA
| | - Marc Blondon
- Division of Angiology and HemostasisGeneva University Hospitals and Faculty of MedicineGenevaSwitzerland
| | - Nicholas L. Smith
- Department of EpidemiologyUniversity of WashingtonSeattleWashingtonUSA
- Kaiser Permanente Washington Health Research InstituteSeattleWashingtonUSA
- Department of Veterans AffairsSeattle Epidemiologic Research and Information Center, Office of Research & DevelopmentSeattleWashingtonUSA
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Chopard R, Albertsen IE, Ecarnot F, Guth S, Besutti M, Falvo N, Piazza G, Meneveau N. Extended Anticoagulation After Pulmonary Embolism: A Multicenter Observational Cohort Analysis. J Am Heart Assoc 2022; 11:e024425. [PMID: 35730608 PMCID: PMC9333394 DOI: 10.1161/jaha.121.024425] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background Pulmonary embolism (PE) has a long‐term risk of adverse events, which can be prevented by extended anticoagulation. We compared clinical characteristics and outcomes between patients treated with 2‐year extended anticoagulation and those who were not, in a population who had completed an initial phase of 3 to 6 months of anticoagulant therapy after acute PE. Methods and Results Observational cohort analysis of patients with PE who survived an initial phase of 3 to 6 months anticoagulation. Primary efficacy outcome was all‐cause death or recurrent venous thromboembolism. Primary safety outcome was major bleeding. In total, 858 (71.5%) patients were treated with and 341 (28.5%) were treated without extended anticoagulant therapy during the active study period. Age <65 years, intermediate‐high or high‐risk index PE, normal platelet count, and the absence of concomitant antiplatelet treatment were independently associated with the prescription of extended anticoagulation. The mean duration of the active phase was 2.1±0.3 years. The adjusted rate of the primary efficacy outcome was 2.1% in the extended group and 7.7% in the nonextended group (P<0.001) for patients treated with extended anticoagulant therapy. Rate of bleeding were similar between the extended anticoagulant group and the nonextended group. Conclusions Extended oral anticoagulation over 2 and a half years after index PE seems to provide a net clinical benefit compared with no anticoagulation in patients with PE selected to receive extended anticoagulation. Randomized clinical trials are warranted to explore the potential benefit of extended anticoagulation in patients with PE, especially those with transient provoking factors but residual risk.
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Affiliation(s)
- Romain Chopard
- Department of Cardiology University Hospital Jean Minjoz Besançon France.,EA3920 University of Burgundy Franche-Comté Besançon France.,F-CRIN INNOVTE Network Saint-Etienne France
| | | | - Fiona Ecarnot
- Department of Cardiology University Hospital Jean Minjoz Besançon France.,EA3920 University of Burgundy Franche-Comté Besançon France
| | - Sebastien Guth
- Department of Cardiology University Hospital Jean Minjoz Besançon France
| | - Matthieu Besutti
- Department of Cardiology University Hospital Jean Minjoz Besançon France
| | - Nicolas Falvo
- Department of Internal Medicine University Hospital Dijon-Bourgogne Dijon France
| | - Gregory Piazza
- Division of Cardiovascular Medicine Department of Medicine Brigham and Women's HospitalHarvard Medical School Boston MA
| | - Nicolas Meneveau
- Department of Cardiology University Hospital Jean Minjoz Besançon France.,EA3920 University of Burgundy Franche-Comté Besançon France.,F-CRIN INNOVTE Network Saint-Etienne France
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15
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Eppenberger D, Nilius H, Anagnostelis B, Huber CA, Nagler M. Current Knowledge on Factor V Leiden Mutation as a Risk Factor for Recurrent Venous Thromboembolism: A Systematic Review and Meta-Analysis. Front Cardiovasc Med 2022; 9:883986. [PMID: 35463779 PMCID: PMC9021545 DOI: 10.3389/fcvm.2022.883986] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 03/17/2022] [Indexed: 12/24/2022] Open
Abstract
Background Thrombophilia screening is widely done in clinical practice, and it is claimed that the extent of venous thromboembolism (VTE) recurrence risk in patients with common defects is still not fully understood. Aim We aimed to summarize data of all observational studies prospectively assessing the association of heterozygous factor V Leiden (FVL) mutation and recurrent VTE in patients with VTE, and to calculate pooled relative risks (RR), overall and in various subgroups. Methods We searched MEDLINE and EMBASE databases for cohort studies prospectively assessing VTE recurrence in patients with and without FVL mutation (PROSPERO: CRD42021182800). Data were extracted on cohort and study-level. The methodological quality was assessed using the Newcastle-Ottawa Scale (NOS). RR were calculated overall and in subgroups using a random-effects model. Results From 31 cohorts, 24 studies were finally included summarizing 13,571 patients. Heterozygous FVL mutation was identified in 2,840 individuals (21%). The methodological quality was estimated to be high in 20 studies (83%). The overall RR was 1.46 (95% CI: 1.31, 1.64), consistent across subgroups. Conclusions Pooling all high-quality epidemiological data, the risk of recurrent VTE was increased by 46% in patients with heterozygous FVL mutation. Against the background of established risk factors, the FVL mutation plays only a marginal role in the risk assessment for recurrent VTE.
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Affiliation(s)
- Daria Eppenberger
- Department of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Henning Nilius
- Department of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Betsy Anagnostelis
- Medical Library Research Support Service, University Library of Bern, University of Bern, Bern, Switzerland
| | - Carola A. Huber
- Department of Health Sciences, Helsana Insurance Group, Zürich, Switzerland
| | - Michael Nagler
- Department of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- *Correspondence: Michael Nagler
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Wang H, Cushman M, Rosendaal FR, van Hylckama Vlieg A. Association of Remote History of Venous Thrombosis With Risk of Venous Thrombosis After Age 70 Years. JAMA Netw Open 2022; 5:e224205. [PMID: 35333359 PMCID: PMC8956975 DOI: 10.1001/jamanetworkopen.2022.4205] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
IMPORTANCE Previous venous thrombosis (VT) is associated with risk of future VT, but quantification of risk over the life course is poorly understood. More information is needed for clinicians to understand the association of remote history of VT with the risk of VT in older patients. OBJECTIVE To assess the association between a remote history of VT and the development of VT in older age. DESIGN, SETTING, AND PARTICIPANTS The Age and Thrombosis, Acquired and Genetic Risk Factors in the Elderly case-control study enrolled patients 70 years and older with VT and control individuals 70 years and older without VT between June 2008 and August 2011. The Age and Thrombosis, Acquired and Genetic Risk Factors in the Elderly study is a 2-center, population-based case-control study that was conducted in Burlington, Vermont, in the US and in Leiden, the Netherlands. Consecutively diagnosed patients with an objectively proven episode of VT (deep vein thrombosis of the leg or pulmonary embolism) were included. Control individuals were identified in the same geographic areas as the patients and were randomly selected. Data were analyzed between May 2021 and October 2021. EXPOSURES Self-reported remote VT (occurring >10 years before to enrollment). MAIN OUTCOMES AND MEASURES The main outcome was the risk of VT at older age. The association of self-reported history of remote VT with VT at older age was assessed by calculating odds ratios (ORs) as estimates of relative risk with 95% CIs. RESULTS A total of 460 patients with VT and 456 control participants were included. There were slightly more women than men in both groups (60.2% of patients [n = 277] were women and 52.4% of control participants [n = 239] were women), and the mean (range) age of patients was 78.7 (70.0-100.9) years, which was similar to the control participants. Compared with individuals without remote VT, those with a remote history of VT had an increased risk of VT (OR, 2.54; 95% CI, 1.56-4.13). The crude risk estimate was robust to adjustment and time since remote VT, that is, individuals with a VT 10 to 30 years ago (OR, 2.74; 95% CI, 1.34-5.57) and those with a VT more than 30 years ago (OR, 2.42; 95% CI, 1.21-4.84) had a an increased risk of VT. The population-attributable fraction of a remote history of VT was 7.7%. CONCLUSIONS AND RELEVANCE In this study, a remote history of VT was associated with risk of VT in older individuals. This quantification could assist clinicians in advising patients on VT prevention.
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Affiliation(s)
- Huijie Wang
- Leiden University Medical Center, Department of Clinical Epidemiology, Leiden, the Netherlands
| | - Mary Cushman
- Department of Medicine, Larner College of Medicine at the University of Vermont, Burlington
| | - Frits R. Rosendaal
- Leiden University Medical Center, Department of Clinical Epidemiology, Leiden, the Netherlands
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17
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Mohammed Y, Touw CE, Nemeth B, van Adrichem RA, Borchers CH, Rosendaal FR, van Vlijmen BJ, Cannegieter SC. Targeted proteomics for evaluating risk of venous thrombosis following traumatic lower-leg injury or knee arthroscopy. J Thromb Haemost 2022; 20:684-699. [PMID: 34919779 PMCID: PMC9303526 DOI: 10.1111/jth.15623] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 11/22/2021] [Accepted: 12/14/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Patients with lower-leg cast immobilization and patients undergoing knee arthroscopy have an increased risk of venous thrombosis (VT). Guidelines are ambiguous about thromboprophylaxis use, and individual risk factors for developing VT are often ignored. To assist in VT risk stratification and guide thromboprophylaxis use, various prediction models have been developed. These models depend largely on clinical factors and provide reasonably good C-statistics of around 70%. We explored using protein levels in blood plasma measured by multiplexed quantitative targeted proteomics to predict VT. Our aim was to assess whether a VT risk prediction model based on absolute plasma protein quantification is possible. METHODS We used internal standards to quantify proteins in less than 10 μl plasma. We measured 270 proteins in samples from patients scheduled for knee arthroscopy or with lower-leg cast immobilization. The two prospective POT-(K)CAST trails allow complementary views of VT signature in blood, namely pre and post trauma, respectively. From approximately 3000 patients, 31 patients developed VT who were included and matched with double the number of controls. RESULTS Top discriminating proteins between cases and controls included APOC3, APOC4, APOC2, ATRN, F13B, and F2 in knee arthroscopy patients and APOE, SERPINF2, B2M, F13B, AFM, and C1QC in patients with lower-leg cast. A logistic regression model with cross-validation resulted in C-statistics of 88.1% (95% CI: 85.7-90.6%) and 79.6% (95% CI: 77.2-82.0%) for knee arthroscopy and cast immobilization groups respectively. CONCLUSIONS Promising C-statistics merit further exploration of the value of proteomic tests for predicting VT risk upon additional validation.
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Affiliation(s)
- Yassene Mohammed
- Center for Proteomics and MetabolomicsLeiden University Medical CenterLeidenThe Netherlands
- University of Victoria ‐ Genome British Columbia Proteomics CentreVictoriaBritish ColumbiaCanada
| | - Carolina E. Touw
- Department of Clinical EpidemiologyLeiden University Medical CenterLeidenThe Netherlands
- Department of Orthopaedic SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - Banne Nemeth
- Department of Clinical EpidemiologyLeiden University Medical CenterLeidenThe Netherlands
- Department of Orthopaedic SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - Raymond A. van Adrichem
- Department of Clinical EpidemiologyLeiden University Medical CenterLeidenThe Netherlands
- Department of Orthopaedic SurgeryLeiden University Medical CenterLeidenThe Netherlands
| | - Christoph H. Borchers
- Segal Cancer Proteomics CentreSegal Cancer CentreLady Davis InstituteJewish General HospitalMcGill UniversityMontrealQuebecCanada
- Gerald Bronfman Department of OncologyJewish General Hospital, McGill UniversityMontrealQuebecCanada
- Department of Data Intensive Science and EngineeringSkolkovo Institute of Science and TechnologySkolkovo Innovation CenterMoscowRussia
| | - Frits R. Rosendaal
- Department of Clinical EpidemiologyLeiden University Medical CenterLeidenThe Netherlands
| | - Bart J. van Vlijmen
- Einthoven Laboratory for Experimental Vascular MedicineDepartment of Internal MedicineDivision of Thrombosis & HemostasisLeiden University Medical CenterLeidenThe Netherlands
| | - Suzanne C. Cannegieter
- Department of Clinical EpidemiologyLeiden University Medical CenterLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineDepartment of Internal MedicineDivision of Thrombosis & HemostasisLeiden University Medical CenterLeidenThe Netherlands
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Gris JC, Cochery-Nouvellon É, Bourguignon C, Mercier É, Bouvier S, Quéré I, Perez-Martin A, Molinari N, Matzner-Lober É. Reference values of coagulation assays performed for thrombophilia screening after a first venous thrombosis and their intra-patient associations. Thromb Res 2022; 210:94-103. [PMID: 35042062 DOI: 10.1016/j.thromres.2022.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/03/2021] [Accepted: 01/03/2022] [Indexed: 10/19/2022]
Abstract
INTRODUCTION No reference values are currently available for coagulation assays performed for thrombophilia screening prescribed according to guidelines, after a first venous thromboembolic (VTE) event, and we have no idea of the intra-patient associations between results. METHODS We performed a retrospective study of consecutive prescriptions fulfilling guidelines in a French university hospital from 2010 to 2019 (n = 3842) from the Glims® laboratory information system. We collected results of 12 parameters: aPTT, PT, fibrinogen (Fg), one-stage clotting methods for factors VIII, IX, XI and II (FVIII, FIX, FXI, FII), antithrombin (using an amidolytic assay: AT), protein C and S (using clotting assays: PC and PS) and mixing tests of a lupus-anticoagulant sensitive aPTT and of DRVVT. RESULTS We show the results of the 12 parameters from 3603 individual files with less than 6 missing values, then describe these distributions and correlations between results from 2930 files with no missing value. We give the frequency of results described as indicating a risk of first VTE or of VTE recurrence. We propose 2 quantitative scores linking the 12 parameters at the individual level and reflecting their degree of dispersion with respect to their mean, describe the values of these scores and their associations with thrombophilic results. CONCLUSIONS These normal values should help laboratory workers to validate process results and to assess their degree of originality. Our 2 scores should help to determine the intra-patient plausibility of associations of results. The usefulness of these laboratory scores for predicting clinically-relevant outcomes deserves to be investigated.
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Affiliation(s)
- Jean-Christophe Gris
- Department of Haematology, CHU Nîmes, Univ Montpellier, Nîmes, France; Faculty of Pharmaceutical and Biological Sciences, Montpellier University, France; UMR UA11 INSERM Institut Desbrest d'Epidémiologie et de Santé Publique, Montpellier University, France; I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation.
| | - Éva Cochery-Nouvellon
- Department of Haematology, CHU Nîmes, Univ Montpellier, Nîmes, France; UMR UA11 INSERM Institut Desbrest d'Epidémiologie et de Santé Publique, Montpellier University, France
| | - Chloé Bourguignon
- Department of Haematology, CHU Nîmes, Univ Montpellier, Nîmes, France; UMR UA11 INSERM Institut Desbrest d'Epidémiologie et de Santé Publique, Montpellier University, France
| | - Éric Mercier
- Department of Haematology, CHU Nîmes, Univ Montpellier, Nîmes, France; Faculty of Pharmaceutical and Biological Sciences, Montpellier University, France; UMR UA11 INSERM Institut Desbrest d'Epidémiologie et de Santé Publique, Montpellier University, France
| | - Sylvie Bouvier
- Department of Haematology, CHU Nîmes, Univ Montpellier, Nîmes, France; UMR UA11 INSERM Institut Desbrest d'Epidémiologie et de Santé Publique, Montpellier University, France
| | - Isabelle Quéré
- UMR UA11 INSERM Institut Desbrest d'Epidémiologie et de Santé Publique, Montpellier University, France; Department of Vascular Medicine, University Hospital, Montpellier, France
| | - Antonia Perez-Martin
- UMR UA11 INSERM Institut Desbrest d'Epidémiologie et de Santé Publique, Montpellier University, France; Department of Vascular Medicine, CHU Nîmes, Univ Montpellier, Nîmes, France
| | - Nicolas Molinari
- Faculty of Pharmaceutical and Biological Sciences, Montpellier University, France; UMR UA11 INSERM Institut Desbrest d'Epidémiologie et de Santé Publique, Montpellier University, France
| | - Éric Matzner-Lober
- UMR UA11 INSERM Institut Desbrest d'Epidémiologie et de Santé Publique, Montpellier University, France; CREST UMR 9194, ENSAE Formation Continue, 91120 Palaiseau, France
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Timp JF, Braekkan SK, Lijfering WM, van Hylckama Vlieg A, Hansen JB, Rosendaal FR, le Cessie S, Cannegieter SC. Correction: Prediction of recurrent venous thrombosis in all patients with a first venous thrombotic event: The Leiden Thrombosis Recurrence Risk Prediction model (L-TRRiP). PLoS Med 2021; 18:e1003612. [PMID: 33891592 PMCID: PMC8064740 DOI: 10.1371/journal.pmed.1003612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
[This corrects the article DOI: 10.1371/journal.pmed.1002883.].
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20
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Orsi FA, Lijfering WM, Geersing GJ, Rosendaal FR, Dekkers OM, le Cessie S, Cannegieter SC. Glucocorticoid use and risk of first and recurrent venous thromboembolism: self-controlled case-series and cohort study. Br J Haematol 2021; 193:1194-1202. [PMID: 33748963 PMCID: PMC8251551 DOI: 10.1111/bjh.17388] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 02/11/2021] [Indexed: 12/21/2022]
Abstract
Glucocorticoid treatment increases venous thromboembolism (VTE) risk. Whether this is due to the medication or the underlying disease, or affects the risk of VTE recurrence, has been difficult to determine. The aim of our present study was to quantify the risk for first and recurrent VTE associated with oral glucocorticoids use, considering the underlying disease. A total of 2547 patients with VTE from the Multiple Environmental and Genetic Assessment of Risk Factors for Venous Thrombosis (MEGA) study were linked to the Dutch Pharmaceutical Statistics register. The risk of first VTE during periods of exposure with oral glucocorticoids was estimated by the self‐controlled case series method and that of recurrent VTE was examined in a cohort design. The incidence rate ratio (IRR) of first VTE in the period of glucocorticoid treatment was 3·51 [95% confidence interval (CI) 2·55–4·80]. This IRR was 2·53 (95% CI 1·10–5·72) in the week before treatment started, 5·28 (95% CI 2·89–9·53) in the first 7 days of treatment, remained elevated afterwards and decreased to 1·55 (95% CI 0·85–3·12) after 6 months, as compared to unexposed periods. The hazard ratio for recurrence was 2·72 (95% CI 1·64–4·78) in treatment periods as compared with no treatment. The increased risk of VTE associated with oral glucocorticoid treatment is due to a combined effect of the treatment and the underlying disease, remaining high during the first months of prescription.
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Affiliation(s)
- Fernanda A Orsi
- Department of Clinical Pathology, School of Medical Sciences, University of Campinas (UNICAMP), Campinas, Brazil.,Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Willem M Lijfering
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Geert-Jan Geersing
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Frits R Rosendaal
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Olaf M Dekkers
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.,Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Saskia le Cessie
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.,Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, the Netherlands
| | - Suzanne C Cannegieter
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.,Department of Internal Medicine, Section of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
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21
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Stevens H, McFadyen J, Chan N. Advances in the Management of Acute Venous Thromboembolism and New Therapeutic Agents. Semin Respir Crit Care Med 2021; 42:218-232. [PMID: 33601429 DOI: 10.1055/s-0041-1723953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Important advances in the understanding and management of venous thromboembolism (VTE) have enhanced our ability to diagnose, prevent, and treat VTE. In this narrative review, we discuss how recent advances in the understanding and management of VTE are changing practice, highlight ongoing unmet needs in VTE management, and outline how novel therapeutic targets with little or no influence on hemostasis may help address these unmet needs.
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Affiliation(s)
- Hannah Stevens
- Atherothrombosis and Vascular Biology Program, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.,Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia.,Department of Clinical Haematology, Alfred Hospital, Melbourne, Victoria, Australia
| | - James McFadyen
- Atherothrombosis and Vascular Biology Program, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.,Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia.,Department of Clinical Haematology, Alfred Hospital, Melbourne, Victoria, Australia
| | - Noel Chan
- Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, Ontario, Canada
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Ageno W, Farjat A, Haas S, Weitz JI, Goldhaber SZ, Turpie AGG, Goto S, Angchaisuksiri P, Dalsgaard Nielsen J, Kayani G, Schellong S, Bounameaux H, Mantovani LG, Prandoni P, Kakkar AK. Provoked versus unprovoked venous thromboembolism: Findings from GARFIELD-VTE. Res Pract Thromb Haemost 2021; 5:326-341. [PMID: 33733032 PMCID: PMC7938631 DOI: 10.1002/rth2.12482] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Venous thromboembolism (VTE) has a long-term risk of recurrence, dependent on the presence or absence of provoking risk factors at the time of the event. OBJECTIVE To compare clinical characteristics, anticoagulant patterns, and 12-month outcomes in patients with transient provoking factors, active cancer, and unprovoked VTE. METHODS The Global Anticoagulant Registry in the FIELD (GARFIELD)-VTE is a prospective, observational study that enrolled 10 207 patients with objectively diagnosed VTE from 415 sites in 28 countries. RESULTS Patients with transient provoking factors were younger (53.0 years) and more frequently women (61.2%) than patients with unprovoked VTE (60.3 years; 43.0% women) or active cancer (63.6 years; 51.7% women). After 6 months, 59.1% of patients with transient provoking factors remained on anticoagulation, compared to 71.3% with unprovoked VTE and 47.3% with active cancer. At 12 months, this decreased to 36.7%, 51.5%, and 25.4%, respectively. The risk of mortality (hazard ratio [HR], 1.21; 95% confidence interval [CI], 0.90-1.62), recurrent VTE (HR, 0.84; 95% CI, 0.62-1.14), and major bleeding (HR, 1.26; 95% CI, 0.86-1.85) was comparable in patients with transient provoking factors and unprovoked VTE. Patients with minor and major transient provoking factors had a similar risk of recurrent VTE (HR, 0.99; 95% CI, 0.59-1.66), but those with major transient risk factors had a lower risk of death (HR, 0.61; 95% CI, 0.38-0.98). CONCLUSION At 1 year, nearly 40% of patients with transient provoking factors and slightly over half of patients with unprovoked VTE were on anticoagulant treatment. Event rates were comparable between the two groups. Risk of death was higher in patients with minor transient factors than in those with major transient factors.
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Affiliation(s)
- Walter Ageno
- Department of Medicine and SurgeryUniversity of InsubriaVareseItaly
| | | | - Sylvia Haas
- Formerly Technical University of MunichMunichGermany
| | - Jeffrey I. Weitz
- McMaster University and the Thrombosis and Atherosclerosis Research InstituteHamiltonONCanada
| | | | | | - Shinya Goto
- Department of Medicine (Cardiology)Tokai University School of MedicineShibuya CityJapan
| | | | | | | | | | | | | | | | - Ajay K. Kakkar
- Thrombosis Research InstituteLondonUK
- University College LondonLondonUK
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23
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de Winter MA, van Es N, Büller HR, Visseren FLJ, Nijkeuter M. Prediction models for recurrence and bleeding in patients with venous thromboembolism: A systematic review and critical appraisal. Thromb Res 2021; 199:85-96. [PMID: 33485094 DOI: 10.1016/j.thromres.2020.12.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/07/2020] [Accepted: 12/31/2020] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Prediction models for recurrence and bleeding are infrequently used when deciding on anticoagulant treatment duration after venous thromboembolism (VTE) due to concerns about performance and validity. Our aim was to critically appraise these models by systematically summarizing data from derivation and validation studies. MATERIALS AND METHODS MEDLINE and CENTRAL were searched until November 15th, 2019. Studies on prediction models for recurrence or bleeding after at least 3 months of anticoagulation in adult patients with VTE were included. The PROBAST, ROBINS-I and RoB2 tools were used to assess risk of bias and applicability. RESULTS Selection yielded 18 studies evaluating 8 models for recurrence (7 on development; 9 on validation; 1 update). Generally, models for recurrent VTE appeared to perform poorly to moderately in external validation studies (C-statistics 0.39-0.66, one 0.83). However, impact studies show that HERDOO2 and Vienna prediction model may identify patients with unprovoked VTE at low recurrence risk. Sixteen studies evaluating 14 models for anticoagulation-related bleeding were identified (7 on development; 9 on validation). Although some models seemed promising in development studies, their predictive performance was poor to moderate in external validation (C-statistics 0.52-0.71). All but 3 studies were considered at high risk of bias, mainly due to limitations in the statistical analysis. CONCLUSIONS Prognostic models for recurrence and anticoagulation-related bleeding risk often have important methodological limitations and insufficient predictive accuracy. These findings do not support their use in clinical practice to weigh risks of recurrence and bleeding when deciding on continuing anticoagulation after initial treatment of VTE.
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Affiliation(s)
- Maria A de Winter
- University Medical Center, Utrecht, Department of Acute Internal Medicine, Heidelberglaan 100, 3584CX Utrecht, the Netherlands.
| | - Nick van Es
- Amsterdam UMC, Department of Vascular Medicine; Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands.
| | - Harry R Büller
- Amsterdam UMC, Department of Vascular Medicine; Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands.
| | - Frank L J Visseren
- University Medical Center, Utrecht, Department of Vascular Medicine, Heidelberglaan 100, 3584CX Utrecht, the Netherlands.
| | - Mathilde Nijkeuter
- University Medical Center, Utrecht, Department of Acute Internal Medicine, Heidelberglaan 100, 3584CX Utrecht, the Netherlands.
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Amini K, Arabzadeh A, Jahed S, Amini P. Topical Tranexamic Acid versus Phenylephrine-lidocaine for the Treatment of Anterior Epistaxis in Patients Taking Aspirin or Clopidogrel; a Randomized Clinical Trial. ARCHIVES OF ACADEMIC EMERGENCY MEDICINE 2020. [PMID: 33313573 PMCID: PMC7720853 DOI: 10.22037/aaem.v9i1.875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Epistaxis is one of the most prevalent complaints in the emergency department (ED), especially in patients who take antiplatelet agents. This study aimed to compare the effect of topical use of tranexamic acid (TXA) with phenylephrine-lidocaine anterior nasal packing (PANP) in controlling epistaxis of patients who take aspirin or clopidogrel. METHODS This prospective, double-blind, parallel-group, randomized clinical trial was conducted to compare the effect of topical use of intravenous (IV) TXA compared with PANP on controlling anterior epistaxis in patients who take aspirin or clopidogrel. RESULTS One hundred patients with the mean age of 59.24 ± 7.75 (45 - 75) years were studied (52% male). Two groups were similar in terms of age (p=0.81) and sex (p=0.23) distribution, diabetes mellitus (p=0.54), and hypertension (p = 0.037). The mean time to stop bleeding was 6.70 ± 2.35 minutes in the TXA group and 11.50±3.64 minutes in the PANP group (p=0.002). Bleeding recurrence occurred in 3 (6%) cases of the TXA group and 10 (20%) cases of the PANP group (p =0.03). Time to discharge from ED in the TXA group was significantly lower than the PANP group (p<0.001). The absolute risk reduction (ARR), relative risk reduction, and number needed to harm of treatment with TXA for anterior nasal bleeding were 14.00% (95%CI: 1.11 - 26.89), 17.50% (95%CI: 0.60 - 37.27), and 7.14 (95%CI: 3.71 -90.43), respectively. CONCLUSION Topical TXA is an appropriate treatment option in bleeding cessation, and reducing re-bleeding and duration of hospital stay in patients with epistaxis who take antiplatelet agents.
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Affiliation(s)
- Keyvan Amini
- Department of Emergency Medicine, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - AmirAhmad Arabzadeh
- Department of surgery, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran. ,Corresponding authors: AmirAhmad Arabzadeh; Department of surgery, Fatemi Hospital, Ardabil, Iran. , Fax number: +984533249947, Phone: +984533249947, ORCID: https://orcid.org/0000-0001-9594-5522
| | - Sevda Jahed
- School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Payman Amini
- School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
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25
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Raj L, Presles E, Le Mao R, Robin P, Sanchez O, Pernod G, Bertoletti L, Jego P, Lemarié CA, Leven F, Hoffmann C, Planquette B, Le Roux PY, Slaun PY, Nonent M, Girard P, Lacut K, Mélac S, Guégan M, Mismetti P, Laporte S, Meyer G, Leroyer C, Tromeur C, Couturaud F. Evaluation of Venous Thromboembolism Recurrence Scores in an Unprovoked Pulmonary Embolism Population: A Post-hoc Analysis of the PADIS-PE trial. Am J Med 2020; 133:e406-e421. [PMID: 32333853 DOI: 10.1016/j.amjmed.2020.03.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 02/01/2020] [Accepted: 03/13/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND We aimed to validate the Men Continue and HERDOO2 (HERDOO2), D-dimer, age, sex, hormonal therapy (DASH), and updated Vienna recurrent venous thromboembolism prediction models in a population composed entirely of first unprovoked pulmonary embolism, and to analyze the impact of the addition of the pulmonary vascular obstruction index (PVOI) on score accuracy. METHODS Analyses were based on the double-blind, randomized PADIS-PE trial, which included 371 unprovoked pulmonary embolism patients initially treated for 6 months, successively randomized to receive an additional 18 months of warfarin or placebo, and subsequently followed-up for 2 years. RESULTS The HERDOO2, DASH, and updated Vienna scores displayed C-statistics of 0.61 (95% CI 0.54-0.68), 0.60 (95% CI 0.53-0.66), and 0.58 (95% CI 0.51-0.66), respectively. Only the HERDOO2 score identified low recurrence risk patients (<3%/year) after anticoagulation was stopped. When added to either of the prediction models, PVOI measured at pulmonary embolism diagnosis, after 6 months of anticoagulation, or both, improved scores' C-statistics between +0.06 and +0.11 points and consistently led to identifying at least 50% of patients who experienced recurrence but in whom the scores would have indicated against extended anticoagulation. CONCLUSIONS In patients with a first unprovoked pulmonary embolism, the HERDOO2 score is able to identify patients with a low recurrence risk after treatment discontinuation. Addition of PVOI improves accuracy of all scores. CLINICAL TRIALS REGISTRATION URL: http://www.controlled-trials.com. Unique identifier: NCT00740883.
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Affiliation(s)
- Leela Raj
- Département de Médecine Interne et Pneumologie, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, and EA 3878, CIC INSERM 1412, Brest, France; McMaster University, Hamilton, Ontario, Canada
| | - Emilie Presles
- Unité de Recherche Clinique, Innovation et Pharmacologie, Centre Hospitalo-Universitaire de Saint-Etienne, and INSERM U1059 SAINBIOSE, Université Jean Monnet, France; F-CRIN INNOVTE, Saint Etienne, France
| | - Raphael Le Mao
- Département de Médecine Interne et Pneumologie, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, and EA 3878, CIC INSERM 1412, Brest, France; F-CRIN INNOVTE, Saint Etienne, France
| | - Philippe Robin
- F-CRIN INNOVTE, Saint Etienne, France; Service de Médecine Nucléaire and EA 3878, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, France
| | - Olivier Sanchez
- F-CRIN INNOVTE, Saint Etienne, France; Université Paris Descartes, Université Sorbonne Paris Cité, France; Service de Pneumologie et de Soins intensifs, Hôpital Européen Georges Pompidou, AP-HP, Paris, France; INSERM UMR S 1140, France
| | - Gilles Pernod
- F-CRIN INNOVTE, Saint Etienne, France; Département de Médecine Vasculaire, Centre Hospitalo-Universitaire de Grenoble, Université de Grenoble 1, France
| | - Laurent Bertoletti
- F-CRIN INNOVTE, Saint Etienne, France; Service de Médecine Vasculaire et Thérapeutique, Unité de Pharmacologie Clinique, CIC1408, Centre Hospitalo-Universitaire de Saint-Etienne, and INSERM U1059 SAINBIOSE, Université Jean Monnet, France
| | - Patrick Jego
- F-CRIN INNOVTE, Saint Etienne, France; Service de Médecine Interne, Centre Hospitalo-Universitaire de Rennes, Université de Rennes 1, France
| | - Catherine A Lemarié
- Département de Médecine Interne et Pneumologie, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, and EA 3878, CIC INSERM 1412, Brest, France; F-CRIN INNOVTE, Saint Etienne, France
| | - Florent Leven
- Service de Cardiologie and EA 3878, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, France
| | - Clément Hoffmann
- Service d'Echo-doppler Vasculaire, and EA 3878, CIC INSERM 1412, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, France
| | - Benjamin Planquette
- F-CRIN INNOVTE, Saint Etienne, France; Université Paris Descartes, Université Sorbonne Paris Cité, France; Service de Pneumologie et de Soins intensifs, Hôpital Européen Georges Pompidou, AP-HP, Paris, France; INSERM UMR S 1140, France
| | - Pierre-Yves Le Roux
- F-CRIN INNOVTE, Saint Etienne, France; Service de Médecine Nucléaire and EA 3878, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, France
| | - Pierre-Yves Slaun
- F-CRIN INNOVTE, Saint Etienne, France; Service de Médecine Nucléaire and EA 3878, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, France
| | - Michel Nonent
- Service de Radiologie, and EA 3878, CIC INSERM 1412, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, France
| | - Philippe Girard
- F-CRIN INNOVTE, Saint Etienne, France; Département Thoracique, Institut Mutualiste Montsouris, Paris, France
| | - Karine Lacut
- Département de Médecine Interne et Pneumologie, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, and EA 3878, CIC INSERM 1412, Brest, France; F-CRIN INNOVTE, Saint Etienne, France
| | - Solen Mélac
- Département de Médecine Interne et Pneumologie, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, and EA 3878, CIC INSERM 1412, Brest, France; F-CRIN INNOVTE, Saint Etienne, France
| | - Marie Guégan
- Département de Médecine Interne et Pneumologie, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, and EA 3878, CIC INSERM 1412, Brest, France; F-CRIN INNOVTE, Saint Etienne, France
| | - Patrick Mismetti
- F-CRIN INNOVTE, Saint Etienne, France; Service de Médecine Vasculaire et Thérapeutique, Unité de Pharmacologie Clinique, CIC1408, Centre Hospitalo-Universitaire de Saint-Etienne, and INSERM U1059 SAINBIOSE, Université Jean Monnet, France
| | - Silvy Laporte
- Unité de Recherche Clinique, Innovation et Pharmacologie, Centre Hospitalo-Universitaire de Saint-Etienne, and INSERM U1059 SAINBIOSE, Université Jean Monnet, France; F-CRIN INNOVTE, Saint Etienne, France
| | - Guy Meyer
- F-CRIN INNOVTE, Saint Etienne, France; Université Paris Descartes, Université Sorbonne Paris Cité, France; Service de Pneumologie et de Soins intensifs, Hôpital Européen Georges Pompidou, AP-HP, Paris, France; INSERM UMR S 1140, France
| | - Christophe Leroyer
- Département de Médecine Interne et Pneumologie, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, and EA 3878, CIC INSERM 1412, Brest, France; F-CRIN INNOVTE, Saint Etienne, France
| | - Cécile Tromeur
- Département de Médecine Interne et Pneumologie, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, and EA 3878, CIC INSERM 1412, Brest, France; F-CRIN INNOVTE, Saint Etienne, France
| | - Francis Couturaud
- Département de Médecine Interne et Pneumologie, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, and EA 3878, CIC INSERM 1412, Brest, France; F-CRIN INNOVTE, Saint Etienne, France.
| | -
- Département de Médecine Interne et Pneumologie, Centre Hospitalo-Universitaire de Brest, Université de Bretagne Occidentale, and EA 3878, CIC INSERM 1412, Brest, France
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Rezaee M, Putrenko I, Takeh A, Ganna A, Ingelsson E. Development and validation of risk prediction models for multiple cardiovascular diseases and Type 2 diabetes. PLoS One 2020; 15:e0235758. [PMID: 32726343 PMCID: PMC7390268 DOI: 10.1371/journal.pone.0235758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 06/22/2020] [Indexed: 12/20/2022] Open
Abstract
Accurate risk assessment of an individuals’ propensity to develop cardiovascular diseases (CVDs) is crucial for the prevention of these conditions. Numerous published risk prediction models used for CVD risk assessment are based on conventional risk factors and include only a limited number of biomarkers. The addition of novel biomarkers can boost the discriminative ability of risk prediction models for CVDs with different pathogenesis. The present study reports the development of risk prediction models for a range of heterogeneous CVDs, including coronary artery disease (CAD), stroke, deep vein thrombosis (DVT), and abdominal aortic aneurysm (AAA), as well as for Type 2 diabetes mellitus (DM2), a major CVD risk factor. In addition to conventional risk factors, the models incorporate various blood biomarkers and comorbidities to improve both individual and population stratification. An automatic variable selection approach was developed to generate the best set of explanatory variables for each model from the initial panel of risk factors. In total, up to 254,220 UK Biobank participants (ranging from 215,269 to 254,220 for different CVDs and DM2) were included in the analyses. The derived prediction models utilizing Cox proportional hazards regression achieved consistent discrimination performance (C-index) for all diseases: CAD, 0.794 (95% CI, 0.787–0.801); DM2, 0.909 (95% CI, 0.903–0.916); stroke, 0.778 (95% CI, 0.756–0.801); DVT, 0.743 (95% CI, 0.737–0.749); and AAA, 0.893 (95% CI, 0.874–0.912). When validated on various subpopulations, they demonstrated higher discrimination in healthier and middle-age individuals. In general, calibration of a five-year risk of developing the CVDs and DM2 demonstrated incremental overestimation of disease-related conditions amongst the highest decile of risk probabilities. In summary, the risk prediction models described were validated with high discrimination and good calibration for several CVDs and DM2. These models incorporate multiple shared predictor variables and may be integrated into a single platform to enhance clinical stratification to impact health outcomes.
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Affiliation(s)
- Mehrdad Rezaee
- Mynomx Inc., Palo Alto, CA, United States of America
- Cardiac and Vascular Care Inc., San Jose, CA, United States of America
- * E-mail:
| | - Igor Putrenko
- Mynomx Inc., Palo Alto, CA, United States of America
| | - Arsia Takeh
- Mynomx Inc., Palo Alto, CA, United States of America
| | - Andrea Ganna
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, United States of America
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, United States of America
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, United States of America
| | - Erik Ingelsson
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States of America
- Stanford Cardiovascular Institute, Stanford, CA, United States of America
- Stanford Diabetes Research Center, Stanford, CA, United States of America
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Predicting the Risk of Recurrent Venous Thromboembolism: Current Challenges and Future Opportunities. J Clin Med 2020; 9:jcm9051582. [PMID: 32456008 PMCID: PMC7290951 DOI: 10.3390/jcm9051582] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/13/2020] [Accepted: 05/19/2020] [Indexed: 12/11/2022] Open
Abstract
Acute venous thromboembolism (VTE) is a commonly diagnosed condition and requires treatment with anticoagulation to reduce the risk of embolisation as well as recurrent venous thrombotic events. In many cases, cessation of anticoagulation is associated with an unacceptably high risk of recurrent VTE, precipitating the use of indefinite anticoagulation. In contrast, however, continuing anticoagulation is associated with increased major bleeding events. As a consequence, it is essential to accurately predict the subgroup of patients who have the highest probability of experiencing recurrent VTE, so that treatment can be appropriately tailored to each individual. To this end, the development of clinical prediction models has aided in calculating the risk of recurrent thrombotic events; however, there are several limitations with regards to routine use for all patients with acute VTE. More recently, focus has shifted towards the utility of novel biomarkers in the understanding of disease pathogenesis as well as their application in predicting recurrent VTE. Below, we review the current strategies used to predict the development of recurrent VTE, with emphasis on the application of several promising novel biomarkers in this field.
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Rokx C, Borjas Howard JF, Smit C, Wit FW, Pieterman ED, Reiss P, Cannegieter SC, Lijfering WM, Meijer K, Bierman W, Tichelaar V, Rijnders BJA. Risk of recurrent venous thromboembolism in patients with HIV infection: A nationwide cohort study. PLoS Med 2020; 17:e1003101. [PMID: 32407386 PMCID: PMC7224453 DOI: 10.1371/journal.pmed.1003101] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 04/13/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Multiple studies have described a higher incidence of venous thromboembolism (VTE) in people living with an HIV infection (PWH). However, data on the risk of recurrent VTE in this population are lacking, although this question is more important for clinical practice. This study aims to estimate the risk of recurrent VTE in PWH compared to controls and to identify risk factors for recurrence within this population. METHODS AND FINDINGS PWH with a first VTE were derived from the AIDS Therapy Evaluation in the Netherlands (ATHENA) cohort (2003-2015), a nationwide ongoing cohort following up PWH in care in the Netherlands. Uninfected controls were derived from the Multiple Environmental and Genetic Assessment of risk factors for venous thrombosis (MEGA) follow-up study (1999-2003), a cohort of patients with a first VTE who initially participated in a case-control study in the Netherlands who were followed up for recurrent VTE. Selection was limited to persons with an index VTE suffering from deep vein thrombosis in the lower limbs and/or pulmonary embolism (PE). Participants were followed from withdrawal of anticoagulation to VTE recurrence, loss to follow-up, death, or end of study. We estimated incidence rates, cumulative incidence (accounting for competing risk of death) and hazard ratios (HRs) using Cox proportional hazards regression, adjusting for age, sex, and whether the index event was provoked or unprovoked. When analyzing risk factors among PWH, the main focus of analysis was the role of immune markers (cluster of differentiation 4 [CD4]+ T-cell count). There were 153 PWH (82% men, median 48 years) and 4,005 uninfected controls (45% men, median 49 years) with a first VTE (71% unprovoked in PWH, 34% unprovoked in controls) available for analysis. With 40 VTE recurrences during 774 person-years of follow-up (PYFU) in PWH and 635 VTE recurrences during 20,215 PYFU in controls, the incidence rates were 5.2 and 3.1 per 100 PYFU (HR: 1.70, 95% CI 1.23-2.36, p = 0.003). VTE consistently recurred more frequently per 100 PYFU in PWH in all predefined subgroups of men (5.6 versus 4.8), women (3.6 versus 1.9), and unprovoked (6.0 versus 5.2) or provoked (3.1 versus 2.1) first VTE. After adjustment, the VTE recurrence risk was higher in PWH compared to controls in the first year after anticoagulant discontinuation (HR: 1.67, 95% CI 1.04-2.70, p = 0.03) with higher cumulative incidences in PWH at 1 year (12.5% versus 5.6%) and 5 years (23.4% versus 15.3%) of follow-up. VTE recurred less frequently in PWH who were more immunodeficient at the first VTE, marked by a better CD4+ T-cell recovery on antiretroviral therapy and during anticoagulant therapy for the first VTE (adjusted HR: 0.81 per 100 cells/mm3 increase, 95% CI 0.67-0.97, p = 0.02). Sensitivity analyses addressing potential sources of bias confirmed our principal analyses. The main study limitations are that VTEs were adjudicated differently in the cohorts and that diagnostic practices changed during the 20-year study period. CONCLUSIONS Overall, the risk of recurrent VTE was elevated in PWH compared to controls. Among PWH, recurrence risk appeared to decrease with greater CD4+ T-cell recovery after a first VTE. This is relevant when deciding to (dis)continue anticoagulant therapy in PWH with otherwise unprovoked first VTE.
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Affiliation(s)
- Casper Rokx
- Erasmus MC, University Medical Centre Rotterdam, Department of Internal Medicine, Section of Infectious Diseases, Rotterdam, the Netherlands
| | - Jaime F Borjas Howard
- University of Groningen, University Medical Centre Groningen, Department of Haematology, Groningen, the Netherlands
| | - Colette Smit
- HIV Monitoring Foundation, Amsterdam, the Netherlands
| | - Ferdinand W Wit
- Department of Global Health and Division of Infectious Diseases, Amsterdam University Medical Centres, University of Amsterdam, Amsterdam, the Netherlands
| | - Elise D Pieterman
- Erasmus MC, University Medical Centre Rotterdam, Department of Internal Medicine, Section of Infectious Diseases, Rotterdam, the Netherlands
| | - Peter Reiss
- Department of Global Health and Division of Infectious Diseases, Amsterdam University Medical Centres, University of Amsterdam, Amsterdam, the Netherlands
| | - Suzanne C Cannegieter
- Leiden University Medical Centre, Department of Clinical Epidemiology, Leiden, the Netherlands
| | - Willem M Lijfering
- Leiden University Medical Centre, Department of Clinical Epidemiology, Leiden, the Netherlands
| | - Karina Meijer
- University of Groningen, University Medical Centre Groningen, Department of Haematology, Groningen, the Netherlands
| | - Wouter Bierman
- University of Groningen, University Medical Centre Groningen, Department of Internal Medicine, Infectious Diseases Service, Groningen, the Netherlands
| | - Vladimir Tichelaar
- University of Groningen, University Medical Centre Groningen, Department of Haematology, Groningen, the Netherlands
| | - Bart J A Rijnders
- Erasmus MC, University Medical Centre Rotterdam, Department of Internal Medicine, Section of Infectious Diseases, Rotterdam, the Netherlands
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Albertsen IE, Piazza G, Søgaard M, Nielsen PB, Larsen TB. Extended oral anticoagulation after incident venous thromboembolism – a paradigm shift? Expert Rev Cardiovasc Ther 2020; 18:201-208. [DOI: 10.1080/14779072.2020.1755260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ida Ehlers Albertsen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
- Aalborg Thrombosis Research Unit, Aalborg University, Aalborg, Denmark
| | - Gregory Piazza
- Division of Cardiovascular Medicine, Harvard Medical School, Brigham and Women’s Hospital, Boston, USA
| | - Mette Søgaard
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
- Aalborg Thrombosis Research Unit, Aalborg University, Aalborg, Denmark
| | - Peter Brønnum Nielsen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
- Aalborg Thrombosis Research Unit, Aalborg University, Aalborg, Denmark
| | - Torben Bjerregaard Larsen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
- Aalborg Thrombosis Research Unit, Aalborg University, Aalborg, Denmark
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