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Burggraaf-van Delft JLI, la Roi-Teeuw HM, de Wit J, Klok FA, Cannegieter SC, Geersing GJ. [When to suspect pulmonary embolism: a balancing act]. Ned Tijdschr Geneeskd 2024; 168:D7788. [PMID: 38661169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Pulmonary embolism (PE) is a common disease, which can present with a variety of symptoms. Optimal use of diagnostics is challenging given the tight and delicate balance between underdiagnosis and over-testing or overdiagnosis. Diagnostic delay occurs in a substantial part of patients, and seems more common in those with known cardiopulmonary disease or non-specific signs and symptoms. At the other end of the spectrum, the amount of diagnostic imaging increases. Increased use of diagnostic imaging in general leads to more harmful exposures and might result in overtreatment, as may be the case in subsegmental PE. Correct use of clinical prediction rules reduces the need for diagnostic imaging while PE can still be ruled out safely. This clinical lesson describes three cases of PE and provides an overview of factors that contribute to underdiagnosis or overdiagnosis. We provide recommendations to improve our balancing act for this challenging disease.
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Affiliation(s)
| | - Hannah M la Roi-Teeuw
- Universitair Medisch Centrum Utrecht, afd. Huisartsgeneeskunde en verplegingswetenschap, Utrecht
| | - J de Wit
- Leids Universitair Medisch Centrum
| | - F A Klok
- Leids Universitair Medisch Centrum, afd. Interne Geneeskunde - Trombose en Hemostase, Leiden
| | - S C Cannegieter
- Leids Universitair Medisch Centrum, afd. Klinische epidemiologie en afd. Trombose en Hemostase, Leiden
| | - G J Geersing
- Universitair Medisch Centrum Utrecht, afd. Huisartsgeneeskunde en verplegingswetenschap, Utrecht
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2
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Cherenko M, Appelman-Dijkstra NM, Priego-Zurita AL, Biermasz NR, Dekkers O, Klok FA, Reisch N, Aulinas A, Biagetti B, Cannavo S, Canu L, Detomas M, Devuyst F, Falhammar H, Feelders RA, Ferrau F, Gatto F, Grasselli C, van Houten P, Hoybye C, Isidori AM, Kyrilli A, Loli P, Maiter D, Nowak EDS, Pivonello R, Ragnarsson O, Steenaard RV, Unger N, Van de Ven AC, Webb SM, Yeste D, Ahmed SF, Pereira AM. Venous thromboembolism in Cushing syndrome: results from an EuRRECa and Endo-ERN survey. Endocr Connect 2024:EC-24-0046. [PMID: 38614126 DOI: 10.1530/ec-24-0046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 04/11/2024] [Indexed: 04/15/2024]
Abstract
BACKGROUND Patients with Cushing syndrome (CS) are at increased risk of venous thromboembolism (VTE). OBJECTIVE To evaluate current management of new cases of CS with a focus on VTE and thromboprophylaxis. DESIGN AND METHODS A survey was conducted within those that report in electronic reporting tool (e-REC) of The European Registries for Rare Endocrine Conditions (EuRRECa) and the involved main thematic groups (MTG's) of the European Reference Networks for Rare Endocrine Disorders (Endo-ERN) on new patients with CS from January 2021 until July 2022. RESULTS Of 222 patients (mean age 44 years, 165 females), 141 patients had Cushing disease (64%), 69 adrenal CS (31%) and 12 patients ectopic CS (5.4%). The mean follow-up period post CS diagnosis was 15 months (range 3-30). Cortisol lowering medications were initiated in 38% of patients. One hundred and fifty-four patients (69%) received thromboprophylaxis (including patients on chronic anticoagulant treatment), of which low-molecular weight-heparins were used in 96% of cases. VTE was reported in 6 patients (2.7%), of which 1 was fatal: 2 long before CS diagnosis, 2 between diagnosis and surgery and 2 post-operatively. Three patients were using thromboprophylaxis at time of the VTE diagnosis. The incidence rate of VTE in patients after Cushing syndrome diagnosis in our study cohort was 14.6 (95% CI 5.5; 38.6) per 1000 person-years. CONCLUSIONS Thirty percent of patients with CS did not receive preoperative thromboprophylaxis during their active disease stage and half of the VTE cases even occurred during this stage despite thromboprophylaxis Prospective trials to establish the optimal thromboprophylaxis strategy in CS patients are highly needed.
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Affiliation(s)
- Mariya Cherenko
- M Cherenko, Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
| | - Natasha M Appelman-Dijkstra
- N Appelman-Dijkstra, Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
| | - Ana Luisa Priego-Zurita
- A Priego-Zurita, Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
| | - N R Biermasz
- N Biermasz, Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
| | - Olaf Dekkers
- O Dekkers, Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
| | - F A Klok
- F Klok, Department of Medicine, Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands
| | - Nicole Reisch
- N Reisch, Department of Medicine IV, LMU University Hospital, Ludwig Maximilian University of Munich, Munchen, Germany
| | - Anna Aulinas
- A Aulinas, Department of Endocrinology, IR-SantPau and CIBERER Unit 747 (ISCIII), Fundacio de Gestio Sanitaria de l'Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Betina Biagetti
- B Biagetti, Department of Endocrinology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Salvatore Cannavo
- S Cannavo, Endocrine Unit AOU Policlinico, G Martino University Hospital of Messina, Messina, Italy
| | - Letizia Canu
- L Canu, University Hospital Careggi, Florence, Italy
| | - Mario Detomas
- M Detomas, Department of Internal Medicine, University Hospital Wurzburg, Wurzburg, Germany
| | - France Devuyst
- F Devuyst, Department of Endocrinology, Hôpital Erasme, Bruxelles, Belgium
| | - Henrik Falhammar
- H Falhammar, Department of Molecular Medicine and Surgey, Karolinska Institutet, Stockholm, Sweden
| | - Richard A Feelders
- R Feelders, Department of Internal Medicine, Division of Endocrinology, Erasmus Medical Center, Rotterdam, Netherlands
| | - Francesco Ferrau
- F Ferrau, Endocrine Unit AOU Policlinico , G Martino University Hospital of Messina, Messina, Italy
| | - F Gatto
- F Gatto, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Chiara Grasselli
- C Grasselli, Cardiovascular Medicine Unit, Arcispedale Santa Maria Nuova di Reggio Emilia, Reggio Emilia, Italy
| | - Pepijn van Houten
- P van Houten , Department of Internal Medicine, Division of Endocrinology, Radboudumc, Nijmegen, Netherlands
| | - Charlotte Hoybye
- C Hoybye, Department of Molecular Medicine and Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - Andrea M Isidori
- A Isidori, Department of Experimental Medicine, University of Rome La Sapienza, Rome, Italy
| | - Aglaia Kyrilli
- A Kyrilli, Department of Endocrinology, Hôpital Erasme, Bruxelles, Belgium
| | - Paola Loli
- P Loli, Division of Endocrinology, IRCCS San Raffaele Hospital , Vita-Salute San Raffaele University, Milano, Italy
| | - Dominique Maiter
- D Maiter, Department of Endocrinology (UCLouvain), Cliniques universitaires Saint-Luc, Bruxelles, Belgium
| | | | - Rosario Pivonello
- R Pivonello, Clinical Medicine and Surgery department, Division of endocrinology, diabetology, andrology and nutriciology, University of Naples Federico II, Napoli, Italy
| | - Oskar Ragnarsson
- O Ragnarsson, Wallenberg Centre for Molecular and Translational Medicine, Institute of Medicine (O.R.), University of Gothenburg Sahlgrenska Academy, Gothenburg, Sweden
| | - Rebecca V Steenaard
- R Steenaard, Department of Internal Medicine, Maxima Medical Centre, Veldhoven, Netherlands
| | - Nicole Unger
- N Unger, Department of Endocrinology, Diabetes and Metabolism, University Hospital Essen, Essen, Germany
| | - Annenienke C Van de Ven
- A Van de Ven , Department of Internal Medicine, Division of Endocrinology, Radboudumc, Nijmegen, Netherlands
| | - Susan M Webb
- S Webb, Department of Endocrinology, IR-SantPau and CIBERER Unit 747 (ISCIII), Fundacio de Gestio Sanitaria de l'Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Diego Yeste
- D Yeste, Pediatric Endocrinology Service, Hospital Universitari Vall d'Hebron, Autonomous University of Barcelona, Barcelona, Spain
| | - S Faisal Ahmed
- S Ahmed, Developmental Endocrinology Research Group, Royal Hospital for Children, University of Glasgow, Glasgow, United Kingdom of Great Britain and Northern Ireland
| | - Alberto M Pereira
- A Pereira, Department of Endocrinology and Metabolism, Amsterdam UMC Locatie AMC, Amsterdam, Netherlands
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3
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Guman NAM, Kaptein FHJ, Lohle SB, Mairuhu ATA, Klok FA, Huisman MV, Kamphuisen PW, van Es N. Discharge from the emergency department and outpatient clinic in cancer patients with acute symptomatic and incidental pulmonary embolism: A multicenter retrospective cohort study. Thromb Res 2024; 233:181-188. [PMID: 38101191 DOI: 10.1016/j.thromres.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/27/2023] [Accepted: 12/11/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND It is unclear how often cancer patients with acute pulmonary embolism (PE) are discharged from the emergency department (ED) or outpatient clinic and whether direct discharge is safe. We assessed treatment setting and early safety outcomes in cancer patients with acute symptomatic and incidental PE. METHODS Cancer patients diagnosed with PE at the ED or outpatient clinic between August 2017 and May 2021 were included in Four Cities VTE Cancer, a Dutch multicenter retrospective cohort study. The main outcome was direct discharge versus hospitalization. Safety outcomes were cumulative 14-day mortality and PE-related readmission incidences. RESULTS We included 602 patients (median age 71 years; 49.5 % female) of whom 285 (47.3 %) were discharged directly and 317 (52.7 %) were hospitalized. The cumulative 14-day mortality incidence was 0.7 % (95 % CI, 0.1-2.4 %) in patients discharged directly and 9.0 % (95 % CI, 6.2-12.5 %) in those hospitalized. The cumulative 14-day PE-related readmission incidence was 1.8 % (95 % CI, 0.7-3.9 %) and 1.4 % (95 % CI, 0.5-3.3 %) in directly discharged and hospitalized patients, respectively. Of the 220 patients with incidental PE, 180 (81.8 %) were discharged directly compared to 105 of 382 (27.5 %) patients with symptomatic PE (P < 0.001). Mortality and readmission incidences in symptomatic and incidental PE were consistent with the main analysis. CONCLUSIONS About 28 % and 82 % of cancer patients with symptomatic or incidental PE, respectively, were discharged directly, with low 14-day mortality and PE-related readmission incidences. These data underline the need for PE risk stratification in oncological populations and suggest that clinicians successfully identify a proportion of patients in whom direct discharge is safe.
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Affiliation(s)
- N A M Guman
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Pulmonary hypertension & Thrombosis, Amsterdam, the Netherlands; Department of Internal Medicine, Tergooi MC, Hilversum, the Netherlands.
| | - F H J Kaptein
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - S B Lohle
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Pulmonary hypertension & Thrombosis, Amsterdam, the Netherlands
| | - A T A Mairuhu
- Department of Internal Medicine, Haga Hospital, The Hague, the Netherlands
| | - F A Klok
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - M V Huisman
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - P W Kamphuisen
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Pulmonary hypertension & Thrombosis, Amsterdam, the Netherlands; Department of Internal Medicine, Tergooi MC, Hilversum, the Netherlands
| | - N van Es
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Pulmonary hypertension & Thrombosis, Amsterdam, the Netherlands
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4
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van Mens TE, Klok FA, Levi M. [Pitfalls of searching online: all symptoms, diseases and adverse events appear correlated]. Ned Tijdschr Geneeskd 2023; 167:D7753. [PMID: 38175564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
When confronted with an unexpected clinical observation, such as a remarkable symptom in a patient with an unrelated rare disease, clinicians increasingly apply online literature search to support the observed correlation. Against a background of an exponential rise in medical publications and the well-documented problem of publication bias, the easy access to literature carries the risk of suggesting spurious correlations. The current paper expounds on this phenomenon. Queries in medical search engines often provide a number of hits, regardless of the plausibility of the correlation searched for. To quantify this, we recently performed a study involving 30.000 automated queries in PubMed using completely random search terms drawn from lists of diseases, symptoms and medications. This provided a background rate of PubMed hits. The data support that several hits by no means automatically indicate a relevant correlation, and underline need for judicious critical appraisal when searching for a correlation observed in daily practice.
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Affiliation(s)
- Thijs E van Mens
- LUMC, afd. Interne geneeskunde, Leiden
- Contact: Thijs E. van Mens
| | - F A Klok
- LUMC, afd. Interne geneeskunde, Leiden
| | - Marcel Levi
- Amsterdam UMC, afd. Interne geneeskunde, Amsterdam
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van der Horst SFB, van Rein N, van Mens TE, Huisman MV, Klok FA. Inappropriate prescriptions of direct oral anticoagulants (DOACs) in hospitalized patients: A narrative review. Thromb Res 2023; 231:135-140. [PMID: 37005194 DOI: 10.1016/j.thromres.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 03/29/2023]
Abstract
Direct oral anticoagulants (DOACs) have become the cornerstone for prevention of thromboembolic events in patients with atrial fibrillation and patients with a history of venous thromboembolism. However, studies show that DOAC prescriptions are commonly inconsistent with guideline recommendations. DOAC dosing in the acutely ill patient could impose an even greater challenge. In this review, we describe the prevalence of inappropriate inpatient prescribing of DOACs and the associated rationales, predictors and clinical consequences. With the aim of promoting appropriate prescriptions of DOACs to hospitalized patients, we further outline DOAC dose reduction criteria justified by various guidelines, illustrating the complexities of appropriate dosing, especially in acutely ill patients. Moreover, we will discuss the impact of anticoagulant stewardship programs and the vital role that pharmacists may play in optimizing inpatient DOAC treatment.
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Affiliation(s)
- S F B van der Horst
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, Netherlands.
| | - N van Rein
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, Netherlands; Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Netherlands
| | - T E van Mens
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, Netherlands; Amsterdam UMC, Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam Reproduction and Development, University of Amsterdam, Amsterdam, Netherlands
| | - M V Huisman
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, Netherlands
| | - F A Klok
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, Netherlands
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6
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Chu G, Valerio L, Barco S, Huisman MV, Konstantinides SV, Klok FA. External validation of AF-BLEED for predicting major bleeding and for tailoring NOAC dose in AF patients: A post hoc analysis in the ENGAGE AF-TIMI 48. Thromb Res 2023; 229:225-231. [PMID: 37566971 DOI: 10.1016/j.thromres.2023.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/20/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023]
Abstract
OBJECTIVE AF-BLEED, a simple bleeding risk classifier, was found to predict major bleeding (MB) in patients with atrial fibrillation (AF) and identify AF patients at high risk of MB who might potentially benefit from a lower direct oral anticoagulant dose. This post hoc study aimed to externally validate these findings in the ENGAGE AF-TIMI 48 (Effective aNticoaGulation with factor Xa next Generation in Atrial Fibrillation-Thrombolysis in Myocardial Infarction study 48) trial. METHODS The ENGAGE AF-TIMI 48 trial randomized AF patients to higher-dose edoxaban regimen (HDER 60/30 mg) versus lower-dose edoxaban regimen (LDER 30/15 mg), with prespecified dose reduction criteria. AF-BLEED was calculated in the modified intention-to-treat cohort (n = 21,026 patients) used for primary outcome analysis. Annualized event rates and hazard ratios (HRs) were obtained for the primary composite outcome (PCO) and its single components (MB, ischemic stroke/systemic embolism and death) to compare LDER 30 mg with HDER 60 mg in both AF-BLEED classes. RESULTS AF-BLEED classified 2882 patients (13.7 %) as high-risk, characterized by a two- to three-fold higher MB risk than AF-BLEED classified low-risk patients. AF-BLEED classified high-risk patients randomized to LDER 30 mg demonstrated a 3.3 % reduction in MB at the cost of a 0.5 % increase in ischemic stroke/systemic embolism. LDER 30 mg resulted in a 3.1 % reduction of PCO compared to HDER 60 mg (HR of 0.81; 95%CI 0.65-1.01). Additional to existing dose reduction criteria, another 6 % of patients could potentially benefit of this dose adjustment strategy. CONCLUSION AF-BLEED could identify AF patients to be at high risk of major bleeding. Our findings support the hypothesis that LDER 30 mg might provide a reasonable option in AF patients with legitimate bleeding concerns.
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Affiliation(s)
- G Chu
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
| | - L Valerio
- Center for Thrombosis and Hemostasis (CTH), University Medical Centre Mainz, Mainz, Germany
| | - S Barco
- Center for Thrombosis and Hemostasis (CTH), University Medical Centre Mainz, Mainz, Germany; Clinic of Angiology, University Hospital Zurich, Zurich, Switzerland
| | - M V Huisman
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - S V Konstantinides
- Center for Thrombosis and Hemostasis (CTH), University Medical Centre Mainz, Mainz, Germany; Department of Cardiology, Democritus University of Thrace, Alexandroupolis, Greece
| | - F A Klok
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
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Anijs RJS, Chen Q, van der Hulle T, Versteeg HH, Klok FA, Lijfering WM, Cannegieter SC. Venous and arterial thromboembolism after colorectal cancer in the Netherlands: Incidence, predictors, and prognosis. Thromb Res 2023; 229:90-98. [PMID: 37421683 DOI: 10.1016/j.thromres.2023.06.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/10/2023]
Abstract
BACKGROUND Colorectal cancer (CRC) is the third most prevalent cancer type. CRC-patients are at increased risk of venous and arterial thromboembolism (TE), but the magnitude of the risks, their predictors and consequences are not exactly known. OBJECTIVES We aimed to determine incidence, predictors and prognosis of TE after incident CRC in a large, unselected population. METHODS Using data from Statistics Netherlands and the Netherlands Comprehensive Cancer Organization, all incident CRC-patients were identified between 2013 and 2018 plus a sample of 1:2 age- and sex-matched control subjects. Incidence rates and cumulative incidences for TE were estimated. Predictor variables for TE were explored by univariable Cox regression. The association between TE and all-cause mortality was evaluated by multivariable time-dependent Cox regression. RESULTS 68,238 incident CRC-patients were matched to 136,476 controls. CRC-patients had a 1-year cumulative venous TE (VTE) incidence of 1.93 % (95%CI 1.83-2.04), versus 0.24 % (95%CI 0.21-0.27) in controls (HR 8.85; 95%CI 7.83-9.99). For arterial TE (ATE), this was 2.74 % (95%CI 2.62-2.87) in CRC versus 1.88 % (95%CI 1.81-1.95) in controls (HR 1.57; 95%CI 1.47-1.66). Cancer stage, surgery, chemotherapy and asthma were predictors for VTE, whereas age, prior ATE and Parkinson's disease were predictors for ATE. CRC patients with TE had an increased risk of all-cause mortality (VTE HR; 3.68 (95%CI 3.30-4.10, ATE HR; 3.05 (95%CI 2.75-3.39)) compared with CRC-patients without TE. CONCLUSIONS This Dutch nationwide cohort study adds detailed knowledge on the risk of VTE and ATE, their predictors and prognosis in CRC-patients. These findings may drive TE prophylactic management decisions.
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Affiliation(s)
- R J S Anijs
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands; Department of Medicine, Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - Q Chen
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - T van der Hulle
- Department of Medical Oncology, Leiden University Medical Center, Leiden, the Netherlands
| | - H H Versteeg
- Department of Medicine, Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - F A Klok
- Department of Medicine, Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - W M Lijfering
- The Knowledge Institute of the Federation of Medical Specialists, Utrecht, the Netherlands
| | - S C Cannegieter
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands; Department of Medicine, Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
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8
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van der Horst SFB, Martens ESL, den Exter PL, Bos MHA, van Mens TE, Huisman MV, Klok FA. Idarucizumab for dabigatran reversal: A systematic review and meta-analysis of indications and outcomes. Thromb Res 2023; 228:21-32. [PMID: 37267671 DOI: 10.1016/j.thromres.2023.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 06/04/2023]
Abstract
BACKGROUND Idarucizumab has been approved to reverse the anticoagulant effect of dabigatran. However, there is little knowledge of the effectiveness and safety of idarucizumab in daily practice. AIMS This systematic review and meta-analysis aims to evaluate the use, effectiveness and outcomes of idarucizumab. METHODS A systematic literature search was performed up to September 8th 2022. Original studies including patients prescribed idarucizumab, evaluating prescription indications, prescription appropriateness, haemostatic efficacy and/or the occurrence of adverse events were eligible. Case-reports and studies performed in patients ≤18 years or in healthy volunteers were excluded. Study selection and data extraction were performed by two independent reviewers. Pooled estimates were calculated using the random-effects model, after Freeman-Tukey double-arcsine transformation. RESULTS Thirty studies comprising 3602 patients were included. Idarucizumab was prescribed for bleeding (63.1 %, 95%CI 57.0 %-69.0 %), invasive procedures (30.5 %, 95%CI: 24.1 %-37.2 %), to enable thrombolysis (range: 2.0 %-27.3 %), dabigatran intoxication without bleeding (range: 3.6 %-7.0 %) or unspecified reasons (range: 0.4 %-18.8 %). Overall, 2.8 % (95%CI 0.5 %-6.2 %) of prescription indications were reported to be inappropriate upon post-hoc evaluation. Hemostatic effectiveness was achieved in 77.7 % (95%CI 66.7 %-87.2 %) and peri-procedural haemostasis was normal in 98.5 % (95%CI 86.6 %-100 %) of patients. The pooled incidences of all-cause mortality and thromboembolic events at any follow-up duration were 13.6 % (95%CI 9.6 %-17.9 %) and 2.0 % (95%CI 0.8 %-3.4 %), respectively. CONCLUSION Idarucizumab was mainly prescribed in the setting of bleeding. The reported hemostatic effectiveness was good, especially perioperatively, and the incidence of thromboembolic events was low. Patients with dabigatran-associated bleeding or requiring an urgent procedure nonetheless face a high mortality risk.
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Affiliation(s)
- S F B van der Horst
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, The Netherlands.
| | - E S L Martens
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, The Netherlands
| | - P L den Exter
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, The Netherlands
| | - M H A Bos
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, The Netherlands
| | - T E van Mens
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, The Netherlands
| | - M V Huisman
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, The Netherlands
| | - F A Klok
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, The Netherlands
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Goedegebuur J, Abbel D, Accassat S, Achterberg WP, Akbari A, Arfuch VM, Baddeley E, Bax JJ, Becker D, Bergmeijer B, Bertoletti L, Blom JW, Calvetti A, Cannegieter SC, Castro L, Chavannes NH, Coma-Auli N, Couffignal C, Edwards A, Edwards M, Enggaard H, Font C, Gava A, Geersing GJ, Geijteman ECT, Greenley S, Gregory C, Gussekloo J, Hoffmann I, Højen AA, van den Hout WB, Huisman MV, Jacobsen S, Jagosh J, Johnson MJ, Jørgensen L, Juffermans CCM, Kempers EK, Konstantinides S, Kroder AF, Kruip MJHA, Lafaie L, Langendoen JW, Larsen TB, Lifford K, van der Linden YM, Mahé I, Maiorana L, Maraveyas A, Martens ESL, Mayeur D, van Mens TE, Mohr K, Mooijaart SP, Murtagh FEM, Nelson A, Nielsen PB, Ording AG, Ørskov M, Pearson M, Poenou G, Portielje JEA, Raczkiewicz D, Rasmussen K, Trinks-Roerdink E, Schippers I, Seddon K, Sexton K, Sivell S, Skjøth F, Søgaard M, Szmit S, Trompet S, Vassal P, Visser C, van Vliet LM, Wilson E, Klok FA, Noble SIR. Towards optimal use of antithrombotic therapy of people with cancer at the end of life: A research protocol for the development and implementation of the SERENITY shared decision support tool. Thromb Res 2023; 228:54-60. [PMID: 37276718 DOI: 10.1016/j.thromres.2023.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/02/2023] [Accepted: 05/05/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND Even though antithrombotic therapy has probably little or even negative effects on the well-being of people with cancer during their last year of life, deprescribing antithrombotic therapy at the end of life is rare in practice. It is often continued until death, possibly resulting in excess bleeding, an increased disease burden and higher healthcare costs. METHODS The SERENITY consortium comprises researchers and clinicians from eight European countries with specialties in different clinical fields, epidemiology and psychology. SERENITY will use a comprehensive approach combining a realist review, flash mob research, epidemiological studies, and qualitative interviews. The results of these studies will be used in a Delphi process to reach a consensus on the optimal design of the shared decision support tool. Next, the shared decision support tool will be tested in a randomised controlled trial. A targeted implementation and dissemination plan will be developed to enable the use of the SERENITY tool across Europe, as well as its incorporation in clinical guidelines and policies. The entire project is funded by Horizon Europe. RESULTS SERENITY will develop an information-driven shared decision support tool that will facilitate treatment decisions regarding the appropriate use of antithrombotic therapy in people with cancer at the end of life. CONCLUSIONS We aim to develop an intervention that guides the appropriate use of antithrombotic therapy, prevents bleeding complications, and saves healthcare costs. Hopefully, usage of the tool leads to enhanced empowerment and improved quality of life and treatment satisfaction of people with advanced cancer and their care givers.
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Affiliation(s)
- J Goedegebuur
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands; Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - D Abbel
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands; Department of Medicine - Internal Medicine and Geriatrics, Leiden University Medical Center, Leiden, the Netherlands
| | - S Accassat
- Department of Vascular and Therapeutical Medicine, University Hospital of Saint-Etienne, Saint-Étienne, France
| | - W P Achterberg
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, the Netherlands
| | - A Akbari
- Swansea University, Swansea, Wales, United Kingdom
| | - V M Arfuch
- Department of Medical Oncology, Hospital Clinic Barcelona, Clinical Institute of Haematological and Oncological Diseases (ICMHO), IDIBAPS, Barcelona, Spain
| | - E Baddeley
- Cardiff University, Cardiff, United Kingdom
| | - J J Bax
- Department of Medicine - Cardiology, Leiden University Medical Center, Leiden, the Netherlands
| | - D Becker
- University Medical Center Mainz, Mainz, Germany
| | | | - L Bertoletti
- Department of Vascular and Therapeutical Medicine, Jean Monnet University, University Hospital of Saint-Étienne, Saint-Étienne, France
| | - J W Blom
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, the Netherlands
| | - A Calvetti
- Assistance Publique-Hopitaux de Paris, Paris, France
| | - S C Cannegieter
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands; Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - L Castro
- Vall d'Hebron Research Institute, Barcelona, Spain
| | - N H Chavannes
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, the Netherlands
| | - N Coma-Auli
- Department of Medical Oncology, Hospital Clinic Barcelona, Clinical Institute of Haematological and Oncological Diseases (ICMHO), IDIBAPS, Barcelona, Spain
| | - C Couffignal
- Hôpital Louis Mourier, APHP, Assistance Publique-Hopitaux de Paris, Paris, France
| | - A Edwards
- Cardiff University, Cardiff, United Kingdom
| | - M Edwards
- Cardiff University, Cardiff, United Kingdom
| | - H Enggaard
- Aalborg University Hospital, Aalborg, Denmark
| | - C Font
- Department of Medical Oncology, Hospital Clinic Barcelona, Clinical Institute of Haematological and Oncological Diseases (ICMHO), IDIBAPS, Barcelona, Spain
| | - A Gava
- Societa per l'Assistenza al Malato Oncologico Terminale Onlus (S.A.M.O.T.) Ragusa Onlus, Ragusa, Italy
| | - G J Geersing
- Julius Center for Health Sciences and Primary Care, Department of General Practice, University Medical Center Utrecht, Utrecht, the Netherlands
| | - E C T Geijteman
- Department of Medical Oncology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - S Greenley
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, United Kingdom
| | - C Gregory
- Cardiff University, Cardiff, United Kingdom
| | - J Gussekloo
- Department of Medicine - Internal Medicine and Geriatrics, Leiden University Medical Center, Leiden, the Netherlands; Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, the Netherlands
| | - I Hoffmann
- Hôpital Bichat, APHP, Assistance Publique-Hopitaux de Paris, Paris, France
| | - A A Højen
- Aalborg University Hospital, Aalborg, Denmark
| | - W B van den Hout
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, the Netherlands
| | - M V Huisman
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - S Jacobsen
- Aalborg University Hospital, Aalborg, Denmark
| | - J Jagosh
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, United Kingdom
| | - M J Johnson
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, United Kingdom
| | - L Jørgensen
- Aalborg University Hospital, Aalborg, Denmark
| | - C C M Juffermans
- Centre of Expertise in Palliative Care, Leiden University Medical Center, Leiden, the Netherlands
| | - E K Kempers
- Department of Hematology, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | | | - A F Kroder
- Todaytomorrow, Rotterdam, the Netherlands
| | - M J H A Kruip
- Department of Hematology, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - L Lafaie
- Department of Geriatrics and Gerontology, Jean Monnet University, University Hospital of Saint-Étienne, Saint-Étienne, France
| | | | - T B Larsen
- Aalborg University Hospital, Aalborg, Denmark
| | - K Lifford
- Cardiff University, Cardiff, United Kingdom
| | - Y M van der Linden
- Centre of Expertise in Palliative Care, Leiden University Medical Center, Leiden, the Netherlands; Netherlands Comprehensive Cancer Organization, Utrecht, the Netherlands
| | - I Mahé
- Department of Innovative Therapies in Haemostasis, Hôpital Louis Mourier, APHP, Paris, France
| | - L Maiorana
- Societa per l'Assistenza al Malato Oncologico Terminale Onlus (S.A.M.O.T.) Ragusa Onlus, Ragusa, Italy
| | - A Maraveyas
- Clinical Sciences Centre Hull York Medical School University of Hull, Hull, United Kingdom
| | - E S L Martens
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - D Mayeur
- Centre Georges-François Leclerc, Dijon, France
| | - T E van Mens
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - K Mohr
- University Medical Center Mainz, Mainz, Germany
| | - S P Mooijaart
- Department of Medicine - Internal Medicine and Geriatrics, Leiden University Medical Center, Leiden, the Netherlands
| | - F E M Murtagh
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, United Kingdom
| | - A Nelson
- Cardiff University, Cardiff, United Kingdom
| | - P B Nielsen
- Aalborg University Hospital, Aalborg, Denmark
| | - A G Ording
- Aalborg University Hospital, Aalborg, Denmark
| | - M Ørskov
- Aalborg University Hospital, Aalborg, Denmark
| | - M Pearson
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, United Kingdom
| | - G Poenou
- Department of Vascular and Therapeutical Medicine, Jean Monnet University, University Hospital of Saint-Étienne, Saint-Étienne, France
| | - J E A Portielje
- Department of Medicine - Internal medicine and Medical Oncology, Leiden University Medical Center, Leiden, the Netherlands
| | - D Raczkiewicz
- Department of Medical Statistics, School of Public Health, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - K Rasmussen
- Aalborg University Hospital, Aalborg, Denmark
| | - E Trinks-Roerdink
- Julius Center for Health Sciences and Primary Care, Department of General Practice, University Medical Center Utrecht, Utrecht, the Netherlands
| | | | - K Seddon
- Wales Cancer Research Centre, Cardiff, UK
| | - K Sexton
- Cardiff University, Cardiff, United Kingdom
| | - S Sivell
- Cardiff University, Cardiff, United Kingdom
| | - F Skjøth
- Aalborg University Hospital, Aalborg, Denmark
| | - M Søgaard
- Aalborg University Hospital, Aalborg, Denmark
| | - S Szmit
- Department of Cardio-Oncology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - S Trompet
- Department of Medicine - Internal Medicine and Geriatrics, Leiden University Medical Center, Leiden, the Netherlands
| | - P Vassal
- Department of Vascular and Therapeutical Medicine, University Hospital of Saint-Etienne, Saint-Étienne, France
| | - C Visser
- Department of Hematology, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - L M van Vliet
- Department of Health, Medicine and Neuropsychology, Leiden University, Leiden, the Netherlands
| | - E Wilson
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, United Kingdom
| | - F A Klok
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
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Willems RAL, Michiels N, Lanting VR, Bouwense S, van den Broek BLJ, Graus M, Klok FA, Groot Koerkamp B, de Laat B, Roest M, Wilmink JW, van Es N, Mieog JSD, Ten Cate H, de Vos-Geelen J. Venous Thromboembolism and Primary Thromboprophylaxis in Perioperative Pancreatic Cancer Care. Cancers (Basel) 2023; 15:3546. [PMID: 37509209 PMCID: PMC10376958 DOI: 10.3390/cancers15143546] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/27/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
Recent studies have shown that patients with pancreatic ductal adenocarcinoma (PDAC) treated with neoadjuvant chemo(radio)therapy followed by surgery have an improved outcome compared to patients treated with upfront surgery. Hence, patients with PDAC are more and more frequently treated with chemotherapy in the neoadjuvant setting. PDAC patients are at a high risk of developing venous thromboembolism (VTE), which is associated with decreased survival rates. As patients with PDAC were historically offered immediate surgical resection, data on VTE incidence and associated preoperative risk factors are scarce. Current guidelines recommend primary prophylactic anticoagulation in selected groups of patients with advanced PDAC. However, recommendations for patients with (borderline) resectable PDAC treated with chemotherapy in the neoadjuvant setting are lacking. Nevertheless, the prevention of complications is crucial to maintain the best possible condition for surgery. This narrative review summarizes current literature on VTE incidence, associated risk factors, risk assessment tools, and primary thromboprophylaxis in PDAC patients treated with neoadjuvant chemo(radio)therapy.
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Affiliation(s)
- R A L Willems
- Department of Functional Coagulation, Synapse Research Institute, 6217 KD Maastricht, The Netherlands
- Thrombosis Expert Center Maastricht, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands
- Department of Internal Medicine, Section Vascular Medicine, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands
- Department of Internal Medicine, Section Medical Oncology, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands
- CARIM, School for Cardiovascular Diseases, 6229 ER Maastricht, The Netherlands
| | - N Michiels
- Department of Surgery, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - V R Lanting
- Department of Internal Medicine, Section Vascular Medicine, University of Amsterdam, Amsterdam UMC Location, 1105 AZ Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, 1081 HV Amsterdam, The Netherlands
- Tergooi Hospitals, Internal Medicine, 1201 DA Hilversum, The Netherlands
| | - S Bouwense
- Department of Surgery, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands
- NUTRIM, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - B L J van den Broek
- Department of Surgery, Erasmus University Medical Center, 3015 CN Rotterdam, The Netherlands
| | - M Graus
- Department of Internal Medicine, Section Medical Oncology, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands
- GROW, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - F A Klok
- Department of Medicine-Thrombosis and Hemostasis, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - B Groot Koerkamp
- Department of Surgery, Erasmus University Medical Center, 3015 CN Rotterdam, The Netherlands
| | - B de Laat
- Department of Functional Coagulation, Synapse Research Institute, 6217 KD Maastricht, The Netherlands
- CARIM, School for Cardiovascular Diseases, 6229 ER Maastricht, The Netherlands
- Department of Platelet Pathophysiology, Synapse Research Institute, 6217 KD Maastricht, The Netherlands
| | - M Roest
- Department of Platelet Pathophysiology, Synapse Research Institute, 6217 KD Maastricht, The Netherlands
| | - J W Wilmink
- Cancer Center Amsterdam, 1081 HV Amsterdam, The Netherlands
- Department of Medical Oncology, Amsterdam University Medical Center, Location University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - N van Es
- Department of Internal Medicine, Section Vascular Medicine, University of Amsterdam, Amsterdam UMC Location, 1105 AZ Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Pulmonary Hypertension and Thrombosis, 1081 HV Amsterdam, The Netherlands
| | - J S D Mieog
- Department of Surgery, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - H Ten Cate
- Thrombosis Expert Center Maastricht, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands
- Department of Internal Medicine, Section Vascular Medicine, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands
- CARIM, School for Cardiovascular Diseases, 6229 ER Maastricht, The Netherlands
| | - J de Vos-Geelen
- Department of Internal Medicine, Section Medical Oncology, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands
- GROW, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
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11
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van Mens TE, Klok FA, Levi M. Searching the literature to explain unexpected clinical observations: all that glitters is not gold. Eur J Intern Med 2023; 112:17-18. [PMID: 37059603 DOI: 10.1016/j.ejim.2023.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/16/2023]
Affiliation(s)
- T E van Mens
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam institute for Infection and Immunity, Amsterdam University Medical Centers, University of Amsterdam, the Netherlands; Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, the Netherlands.
| | - F A Klok
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - M Levi
- Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, the Netherlands
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12
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Kaptein FHJ, Kroft LJM, van Dam LF, Stöger JL, Ninaber MK, Huisman MV, Klok FA. Impact of pulmonary infarction in pulmonary embolism on presentation and outcomes. Thromb Res 2023; 226:51-55. [PMID: 37121011 DOI: 10.1016/j.thromres.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/10/2023] [Accepted: 04/05/2023] [Indexed: 05/02/2023]
Abstract
BACKGROUND Pulmonary infarction (PI) is relatively common in pulmonary embolism (PE). The association between PI and persistent symptoms or adverse events is largely unknown. AIM To evaluate the predictive value of radiological PI signs at acute PE diagnosis on 3-month outcomes. METHODS We studied a convenience cohort with computed tomography pulmonary angiography (CTPA)-confirmed PE for whom extensive 3-month follow-up data were available. The CTPAs were re-evaluated for signs of suspected PI. Associations with presenting symptoms, adverse events (recurrent thrombosis, PE-related readmission and mortality) and self-reported persistent symptoms (dyspnea, pain and post-PE functional impairment) at 3-month follow-up were investigated using univariate Cox regression analysis. RESULTS At re-evaluation of the CTPAs, 57 of 99 patients (58 %) had suspected PI, comprising a median of 1 % (IQR 1-3) of total lung parenchyma. Patients with suspected PI more often presented with hemoptysis (11 % vs. 0 %) and pleural pain (OR 2.7, 95%CI 1.2-6.2), and with more proximal PE on CTPA (OR 1.6, 95%CI 1.1-2.4) than patients without suspected PI. There was no association with adverse events, persistent dyspnea or pain at 3-month follow-up, but signs of PI predicted more functional impairment (OR 3.03, 95%CI 1.01-9.13). Sensitivity analysis with the largest infarctions (upper tertile of infarction volume) yielded similar results. CONCLUSIONS PE patients radiologically suspected of PI had a different clinical presentation than patients without those signs and reported more functional limitations after 3 months of follow-up, a finding that could guide patient counselling.
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Affiliation(s)
- F H J Kaptein
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Centre, Leiden, the Netherlands
| | - L J M Kroft
- Department of Radiology, Leiden University Medical Centre, Leiden, the Netherlands
| | - L F van Dam
- Department of Emergency Medicine, Haga Teaching Hospital, The Hague, the Netherlands
| | - J L Stöger
- Department of Radiology, Leiden University Medical Centre, Leiden, the Netherlands
| | - M K Ninaber
- Department of Pulmonology, Leiden University Medical Centre, Leiden, the Netherlands
| | - M V Huisman
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Centre, Leiden, the Netherlands
| | - F A Klok
- Department of Medicine - Thrombosis and Haemostasis, Leiden University Medical Centre, Leiden, the Netherlands.
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13
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Trinks-Roerdink EM, Geersing GJ, Hemels M, van Gelder IC, Klok FA, van Smeden M, Rutten FH, van Doorn S. External validation and updating of prediction models of bleeding risk in patients with cancer receiving anticoagulants. Open Heart 2023; 10:openhrt-2023-002273. [PMID: 37055175 PMCID: PMC10106080 DOI: 10.1136/openhrt-2023-002273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/27/2023] [Indexed: 04/15/2023] Open
Abstract
OBJECTIVE Patients with cancer are at increased bleeding risk, and anticoagulants increase this risk even more. Yet, validated bleeding risk models for prediction of bleeding risk in patients with cancer are lacking. The aim of this study is to predict bleeding risk in anticoagulated patients with cancer. METHODS We performed a study using the routine healthcare database of the Julius General Practitioners' Network. Five bleeding risk models were selected for external validation. Patients with a new cancer episode during anticoagulant treatment or those initiating anticoagulation during active cancer were included. The outcome was the composite of major bleeding and clinically relevant non-major (CRNM) bleeding. Next, we internally validated an updated bleeding risk model accounting for the competing risk of death. RESULTS The validation cohort consisted of 1304 patients with cancer, mean age 74.0±10.9 years, 52.2% males. In total 215 (16.5%) patients developed a first major or CRNM bleeding during a mean follow-up of 1.5 years (incidence rate; 11.0 per 100 person-years (95% CI 9.6 to 12.5)). The c-statistics of all selected bleeding risk models were low, around 0.56. Internal validation of an updated model accounting for death as competing risk showed a slightly improved c-statistic of 0.61 (95% CI 0.54 to 0.70). On updating, only age and a history of bleeding appeared to contribute to the prediction of bleeding risk. CONCLUSIONS Existing bleeding risk models cannot accurately differentiate bleeding risk between patients. Future studies may use our updated model as a starting point for further development of bleeding risk models in patients with cancer.
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Affiliation(s)
- E M Trinks-Roerdink
- Department of General Practice & Nursing Science, Julius Centre for Health Sciences and Primary Care, UMCU, Utrecht, The Netherlands
| | - G J Geersing
- Department of General Practice & Nursing Science, Julius Centre for Health Sciences and Primary Care, UMCU, Utrecht, The Netherlands
| | - Mew Hemels
- Department of Cardiology, Rijnstate Hospital, Arnhem, The Netherlands
- Department of Cardiology, Radboudumc, Nijmegen, The Netherlands
| | - I C van Gelder
- Department of Cardiology, UMCG, Groningen, The Netherlands
| | - F A Klok
- Department of Medicine - Thrombosis and Haemostasis, LUMC, Leiden, The Netherlands
| | - M van Smeden
- Department of Epidemiology & Health Economics, Julius Centre for Health Sciences and Primary Care, UMCU, Utrecht, The Netherlands
| | - F H Rutten
- Department of General Practice & Nursing Science, Julius Centre for Health Sciences and Primary Care, UMCU, Utrecht, The Netherlands
| | - S van Doorn
- Department of General Practice & Nursing Science, Julius Centre for Health Sciences and Primary Care, UMCU, Utrecht, The Netherlands
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14
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Klok FA, Siegerink B. Ordinal outcomes add value to clinical trials. Lancet 2023; 401:995. [PMID: 36965967 DOI: 10.1016/s0140-6736(23)00137-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/18/2023] [Indexed: 03/27/2023]
Affiliation(s)
- F A Klok
- Department of Medicine-Thrombosis and Hemostasis, Leiden University Medical Center, Leiden University, Leiden 2333, Netherlands
| | - B Siegerink
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden University, Leiden 2333, Netherlands.
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15
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Farmakis I, Valerio L, Mavromanoli AC, Bikdeli B, Connors JM, Giannakoulas G, Goldhaber SZ, Hobohm L, Hunt BJ, Keller K, Klok FA, Spyropoulos AC, Kucher N, Konstantinides S, Barco S. Mortality related to pulmonary embolism in the United States before and during the COVID-19 pandemic: an analysis of the CDC Multiple Cause of Death database. Eur Heart J 2022. [PMCID: PMC9619500 DOI: 10.1093/eurheartj/ehac544.1869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Background The COVID-19 pandemic caused a large number of excess deaths. COVID-19 emerged as a prothrombotic disease often complicated by pulmonary embolism (PE). In light of this, we hypothesized that PE-related mortality rates (stable before the pandemic) would be characterized by an increasing trend following the COVID-19 outbreak. Purpose To investigate the mortality rates associated with PE among deaths with or without COVID-19 during the 2020 pandemic in the United States (US). Methods For this retrospective epidemiological study, we analyzed public medically certified vital registration data (death certificates encompassing underlying and multiple causes of death) from the Mortality Multiple Cause-of-Death database provided by the Division of Vital Statistics of the US Centers for Disease Control and Prevention (CDC; US, 2018–20). We investigated the time trends in monthly PE-related crude mortality rates for 2018–2019 and for 2020 (the latter associated vs. not associated with COVID-19), utilizing annual national population totals from the US Census Bureau. Second, we calculated the PE-related proportionate mortality among COVID-19 deaths (overall and limited to autopsy-based diagnosis). We performed subgroup analyses based on age groups, sex and race. Results During 2020, 49,423 deaths in association with PE were reported, vs. 39,450 in 2019 and 38,215 in 2018. The crude PE-related mortality rate without COVID-19 was 13.3 per 100,000 population in 2020 compared to 11.7 in 2018 and 12.0 in 2019 (Figure 1A). The PE-related mortality rate with COVID-19 was 1.6 per 100,000 population in 2020. Among non-COVID-19-related deaths, the crude PE-related mortality rate was higher in women; among COVID-19-related deaths, it was higher in men. PE-related mortality rates were approximately two-fold higher among black (vs. white) general population irrespective of COVID-19 status (Figures 1B and 1C). Among COVID-19 deaths, PE-related deaths corresponded to 1.4% of total; the value rose to 6.0% when an autopsy was performed. This figure was higher in men and its time evolution is depicted in Figure 2A. The proportionate mortality of PE in COVID-19 deaths was higher for younger age groups (15–44 years) compared to non-COVID-19-related deaths (Figure 2B). Conclusion In 2020, an overall 20%-increase in PE-related mortality was reported, not being limited to patients with COVID-19. Our findings could be interpreted in the context of undiagnosed COVID-19 cases, uncounted late sequelae, and possibly sedentary lifestyle and avoidance of healthcare facilities during the pandemic that may have prevented timely diagnosis and treatment of other diseases. Whether vaccination programs had an impact on PE-associated mortality in the year 2021, remains to be determined. Funding Acknowledgement Type of funding sources: None.
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Affiliation(s)
- I Farmakis
- Center for Thrombosis and Hemostasis , Mainz , Germany
| | - L Valerio
- Center for Thrombosis and Hemostasis , Mainz , Germany
| | | | - B Bikdeli
- Brigham and Women's Hospital, Cardiovascular Medicine Division , Boston , United States of America
| | - J M Connors
- Brigham and Women's Hospital, Hematology Division , Boston , United States of America
| | - G Giannakoulas
- AHEPA University General Hospital, Department of Cardiology , Thessaloniki , Greece
| | - S Z Goldhaber
- Brigham and Women's Hospital, Cardiovascular Medicine Division , Boston , United States of America
| | - L Hobohm
- Center for Thrombosis and Hemostasis , Mainz , Germany
| | - B J Hunt
- Guy's & St Thomas' NHS Foundation Trust, St Thomas' Hospital Thrombosis and Haemophilia Centre and Thrombosis and Vascular Biology Group , London , United Kingdom
| | - K Keller
- University Medical Center Mainz, Department of Cardiology , Mainz , Germany
| | - F A Klok
- Leiden University Medical Center, Department of Medicine - Thrombosis and Hemostasis , Leiden , The Netherlands
| | - A C Spyropoulos
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell , Hempstead , United States of America
| | - N Kucher
- University Hospital Zurich, Department of Angiology , Zurich , Switzerland
| | | | - S Barco
- University Hospital Zurich, Department of Angiology , Zurich , Switzerland
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16
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Bonnesen K, Klok FA, Andersen MJ, Andersen A, Nielsen-Kudsk JE, Mellemkjaer S, Sorensen HT, Schmidt M. Chronic thromboembolic pulmonary hypertension and mortality after venous thromboembolism: a nationwide population-based cohort study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
One of the ultimate long-term complications of venous thromboembolism (VTE) is chronic thromboembolic pulmonary hypertension (CTEPH). CTEPH is a condition defined as an increased mean pulmonary arterial pressure of at least 25 mmHg at rest and abnormal pulmonary artery resistance measured by right heart catheterization. To our knowledge, no study has compared mortality in VTE patients developing CTEPH to those who do not.
Purpose
We aimed to investigate the influence of CTEPH on long-term VTE mortality, by examining how receiving any pulmonary hypertension (PH) diagnosis following VTE influenced mortality.
Methods
We conducted a population-based cohort study of all adult Danish patients with an incident in or outpatient VTE diagnosis from 1995 through 2016. We excluded patients with a previous PH diagnosis. We defined CTEPH as receiving any PH diagnosis within two years following VTE. We categorized VTE by type (deep venous thrombosis [DVT] or pulmonary embolism [PE]) and provoking risk factors. We followed patients from two years after VTE until the first of death, emigration, or 31 December 2016. We calculated mortality rates and standardized mortality rate ratios (SMRs) of the association between PH and all-cause mortality and cause-specific mortality due to cancer and cardiovascular diseases. We also stratified the analyses by baseline presence of comorbidity (congestive heart failure, chronic pulmonary disease, and/or interstitial pulmonary disease).
Results
In 89,062 VTE patients alive two years after their VTE, 724 developed PH. The mortality rate per 1,000 person-years was 121 (95% confidence interval [CI]: 110–134) in patients with PH and 48 (95% CI: 47–48) in patients without PH. The SMR was 2.05 (95% CI: 1.77–2.37) for all VTE patients, 2.20 (95% CI: 1.53–3.16) for DVT patients, and 1.72 (95% CI: 1.47–2.01) for PE patients. The SMR was 1.79 (95% CI: 1.28–2.51) in VTE patients with a provoking VTE risk factor and 2.15 (95% CI: 1.83–2.53) in VTE patients without a provoking VTE risk factor. PH was associated with increased cause-specific mortality due to cardiovascular diseases (SMR=2.31, 95% CI: 1.75–3.06), but not cancer (SMR=0.94, 95% CI: 0.64–1.38). The SMR was 2.36 (95% CI: 2.06–2.71) in patients with comorbidity and 1.80 (95% CI: 1.45–2.24) in patients without comorbidity.
Conclusion
Development of PH, as a measure of CTEPH, within two years following incident VTE was associated with two-fold increased mortality in two-year VTE survivors. The increase in mortality was driven by cardiovascular causes.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- K Bonnesen
- Aarhus University and Aarhus University Hospital , Aarhus N , Denmark
| | - F A Klok
- Leiden University Medical Center , Leiden , The Netherlands
| | | | - A Andersen
- Aarhus University Hospital , Aarhus , Denmark
| | | | | | - H T Sorensen
- Aarhus University and Aarhus University Hospital , Aarhus N , Denmark
| | - M Schmidt
- Aarhus University and Aarhus University Hospital , Aarhus N , Denmark
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17
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van Haalen FM, Kaya M, Pelsma ICM, Dekkers OM, Biermasz NR, Cannegieter SC, Huisman MV, van Vlijmen BJM, Feelders RA, Klok FA, Pereira AM. Current clinical practice for thromboprophylaxis management in patients with Cushing's syndrome across reference centers of the European Reference Network on Rare Endocrine Conditions (Endo-ERN). Orphanet J Rare Dis 2022; 17:178. [PMID: 35505430 PMCID: PMC9062860 DOI: 10.1186/s13023-022-02320-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 04/09/2022] [Indexed: 11/22/2022] Open
Abstract
Background Cushing’s syndrome (CS) is associated with an hypercoagulable state and an increased risk of venous thromboembolism (VTE). Evidence-based guidelines on thromboprophylaxis strategies in patients with CS are currently lacking. We aimed to map the current clinical practice for thromboprophylaxis management in patients with CS across reference centers (RCs) of the European Reference Network on Rare Endocrine Conditions (Endo-ERN), which are endorsed specifically for the diagnosis and treatment of CS. Using the EU survey tool, a primary screening survey, and subsequently a secondary, more in-depth survey were developed. Results The majority of the RCs provided thromboprophylaxis to patients with CS (n = 23/25), although only one center had a standardized thromboprophylaxis protocol (n = 1/23). RCs most frequently started thromboprophylaxis from CS diagnosis onwards (n = 11/23), and the majority stopped thromboprophylaxis based on individual patient characteristics, rather than standardized treatment duration (n = 15/23). Factors influencing the initiation of thromboprophylaxis were ‘medical history of VTE’ (n = 15/23) and ‘severity of hypercortisolism’ (n = 15/23). Low-Molecular-Weight-Heparin was selected as the first-choice anticoagulant drug for thromboprophylaxis by all RCs (n = 23/23). Postoperatively, the majority of RCs reported ‘severe immobilization’ as an indication to start thromboprophylaxis in patients with CS (n = 15/25). Most RCs (n = 19/25) did not provide standardized testing for variables of hemostasis in the postoperative care of CS. Furthermore, the majority of the RCs provided preoperative medical treatment to patients with CS (n = 23/25). About half of these RCs (n = 12/23) took a previous VTE into account when starting preoperative medical treatment, and about two-thirds (n = 15/23) included ‘reduction of VTE risk’ as a goal of treatment. Conclusions There is a large practice variation regarding thromboprophylaxis management and perioperative medical treatment in patients with CS, even in Endo-ERN RCs. Randomized controlled trials are needed to establish the optimal prophylactic anticoagulant regimen, carefully balancing the increased risk of (perioperative) bleeding, and the presence of additional risk factors for thrombosis. Supplementary Information The online version contains supplementary material available at 10.1186/s13023-022-02320-x.
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Affiliation(s)
- F M van Haalen
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands.
| | - M Kaya
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
| | - I C M Pelsma
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
| | - O M Dekkers
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands.,Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Netherlands
| | - N R Biermasz
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
| | - S C Cannegieter
- Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands.,Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Netherlands
| | - M V Huisman
- Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands
| | - B J M van Vlijmen
- Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands
| | - R A Feelders
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands.,Department of Medicine, Division of Endocrinology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - F A Klok
- Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands
| | - A M Pereira
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, Netherlands
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18
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Hanna-Sawires RG, Groen JV, Hamming A, Tollenaar RAEM, Mesker WE, Luelmo SAC, Vahrmeijer AL, Bonsing BA, Versteeg HH, Klok FA, Mieog JSD. Incidence, timing and risk factors of venous thromboembolic events in patients with pancreatic cancer. Thromb Res 2021; 207:134-139. [PMID: 34628229 DOI: 10.1016/j.thromres.2021.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/25/2021] [Accepted: 08/04/2021] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Pancreatic cancer is associated with a high risk of venous thromboembolism (VTE). However, comprehensive data on incidence, timing and relevant determinants of VTE in this particular population are scarce. Current study assesses incidence, timing and predictors of VTE in pancreatic cancer through different phases of disease. METHODS All pancreatic cancer patients treated in our tertiary referral center between 2013 through 2017 were studied. Occurrence of VTE was evaluated from diagnosis through end of follow-up or death. Relevant determinants of VTE were identified in logistic regression models. Hazard ratios were calculated to evaluate impact of VTE on overall survival. RESULTS In total, 361 patients were followed for a median period of 43 months; 64 were diagnosed with VTE (18%). Most were tumor related thrombosis (59%), incidental (75%) and occurred after anti-cancer treatment had been stopped (80%), only 1.6% occurred during remission phase. Stage IV pancreatic cancer was a predictor for VTE (hazard ratio (HR) 2.46, 95% confidence interval (CI) 0.9-6.8). Biliary drainage (HR 0.52, 95%CI 0.28-0.98) and tumor resection (HR 0.45, 95%CI 0.45-1.83) were protective factors. VTE was not associated with worse survival (HR 1.3; 95% CI 0.97-1.74). CONCLUSIONS VTE in pancreatic cancer is disease-stage dependent, with 80% occurring in advanced phases of disease when patients no longer receive active treatment. We speculate that this is the main reason for the absence of a survival effect of VTE in our cohort. These practice-based findings should be taken into account when considering wide-spread introduction of primary thromboprophylaxis in patients with pancreatic cancer.
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Affiliation(s)
| | - Jesse V Groen
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - Alexander Hamming
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - Rob A E M Tollenaar
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - Wilma E Mesker
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - Saskia A C Luelmo
- Department of Medical Oncology, Leiden University Medical Centre, Leiden, the Netherlands
| | | | - Bert A Bonsing
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - Henri H Versteeg
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Centre, Leiden, the Netherlands
| | - F A Klok
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Centre, Leiden, the Netherlands
| | - J Sven D Mieog
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands.
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19
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Chu G, Van Rein N, Huisman MV, Pedersen L, Cannegieter SC, Klok FA, Sorensen HT. Antithrombotic therapy and bleeding complications in patients with atrial fibrillation and active cancer. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Little is known about the extent to which an active cancer diagnosis increases bleeding and thromboembolic risks in atrial fibrillation (AF) patients. Data on major bleeding rates per antithrombotic management strategy are lacking in AF patients with active cancer.
Purpose
To examine the incidence rates of major bleeding per antithrombotic treatment in AF patients with active cancer and to examine whether cancer type impacts major bleeding and thromboembolic risks.
Methods
We used Danish population-based health care databases to conduct this cohort study. We included all incident AF (including atrial flutter) patients aged ≥50 years between January 1st 1995 and December 31st 2016, out of whom we identified AF patients who subsequently developed cancer. We used International Classification of Diseases 10th Revision codes to identify data on cancer type and outcomes (i.e. major bleeding, arterial and venous thromboembolism). We used Anatomical Therapeutic Chemical codes to provide information on antithrombotic treatment (e.g. no anticoagulant treatment, platelet inhibitors, vitamin K antagonists, direct oral anticoagulants, or a combination of antithrombotic drugs) which was evaluated as a time-dependent variable. The follow-up started from the incident cancer diagnosis until the occurrence of an outcome, death or the end of the two year follow-up. Incidence rates per 100 patient-years and adjusted hazard ratios were computed.
Results
22,996 AF patients with a subsequent incident cancer diagnosis were included in the study. These patients had higher major bleeding and thromboembolic risk compared to those without cancer, with adjusted HRs of 2.11 (1.99–2.23) and 1.36 (1.27–1.44), respectively (Figure 1). Highest bleeding risk was observed for intracranial and respiratory cancer, while haematological and respiratory cancer were associated with highest thromboembolic risk. Bleeding risk increased with increasing number of antithrombotic drugs and was higher in AF patients with active cancer compared to those without, across all exposure categories (Figure 2).
Conclusions
Patients with AF and active cancer are at increased risk of major bleeding and thromboembolisms than those without cancer. Treatment with dual or triple antithrombotic therapy in AF patients with active cancer showed very high bleeding rates.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- G Chu
- Leiden University Medical Center, Department of Medicine - Thrombosis and Haemostasis, Leiden, Netherlands (The)
| | - N Van Rein
- Aarhus University Hospital, Department of Clinical Epidemiology, Aarhus, Denmark
| | - M V Huisman
- Leiden University Medical Center, Department of Medicine - Thrombosis and Haemostasis, Leiden, Netherlands (The)
| | - L Pedersen
- Aarhus University Hospital, Department of Clinical Epidemiology, Aarhus, Denmark
| | - S C Cannegieter
- Leiden University Medical Center, Department of Clinical Epidemiology, Leiden, Netherlands (The)
| | - F A Klok
- Leiden University Medical Center, Department of Medicine - Thrombosis and Haemostasis, Leiden, Netherlands (The)
| | - H T Sorensen
- Aarhus University Hospital, Department of Clinical Epidemiology, Aarhus, Denmark
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20
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Roik M, Pruszczyk P, Klok FA, Barco S, Jermakow M, Dudek D. Current use of catheter directed treatment of acute PE in Europe: results of survey of EAPCI and ESC Working Group on Pulmonary Circulation and Right Ventricular Function. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Aims
This survey conducted by the European Association of Percutaneous Cardiovascular Interventions (EAPCI) and ESC Working Group on Pulmonary Circulation & Right Ventricular Functioncollected information on current practices in catheter-directed treatment (CDT) of acute pulmonary embolism (PE) among cardiology intervention centers in European countries.
Methods and results
Responses from 157 Catheterization laboratories (Cath Lab) representing European countries were collated and analyzed.Sixty seven centers (43%) centers reported application of CDT in PE patients. Almost all centers performing CDT (96%) provided 24/7 service and had experience with a wide spectrum of percutaneous interventions including those for the treatment of structural heart diseases; 53% of the Cath labs utilizing CDT were located in teaching hospitals, and involved 5 to 10 interventional cardiologists performing more than 600 coronary procedures per year. The survey showed a rapid increase in CDT use in European countries after 2015 (45 out of 67 centers). Over 60% of responding centers performed 5–10 CDT procedures per year. It was estimated that 24 patients were treated with CDT per center on a yearly base. The majority of centers (80.3%) indicated that CDT is used in high-risk PE patients, while 38% also apply CDT to intermediate high risk PE.
The survey revealed that pigtail catheters are most commonly used for CDT (49%), while dedicated systems such as AngioJet, Indigo and EKOS were reported to be used in 25%, 23.81% and 20.24% of the centers, respectively. Local thrombolysis during CDT was used in 71% of the procedures. More than 60% of the responders indicated that according to their expert opinion CDT will be routinely used in PE patients in the future. However, they stressed the need for randomized trials to evaluate the safety and efficacy of CDT and determine the patients that would benefit most.
Conclusions
According to the survey, use of CDT in patients with PE is increasing over time. Currently, it is mostly but not exclusively applied to patients with high-risk PE. The respondents indicated the need for high-quality randomized trials to establish the optimal indication for CDT and further standardize the use of the available techniques.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Roik
- Medical University of Warsaw, Warsaw, Poland
| | - P Pruszczyk
- Medical University of Warsaw, Warsaw, Poland
| | - F A Klok
- Leiden University Medical Center, Department of Thrombosis and Hemostasis, Leiden, Netherlands (The)
| | - S Barco
- University Hospital Zurich, Zurich, Switzerland
| | - M Jermakow
- Medical University of Warsaw, Warsaw, Poland
| | - D Dudek
- University Hospital, Institute of Cardiology, Jagiellonian University Medical College, 2nd Department of Cardiology, Krakow, Poland
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21
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Chu G, Van Rein N, Huisman MV, Pedersen L, Klok FA, Cannegieter SC, Sorensen HT. Atrial fibrillation in patients with a history of cancer and risk of bleeding complications associated with antithrombotic therapy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Up to one in four patients with atrial fibrillation (AF) has a cancer diagnosis. It is largely unknown to which extent a prior cancer diagnosis affects major bleeding and thromboembolic risk in AF patients. Moreover, data on major bleeding rates per antithrombotic treatment type are lacking in these patients.
Purpose
To examine the incidence rates of major bleeding per antithrombotic treatment in AF patients with prior cancer and to examine whether cancer type and the time-interval between AF and cancer influence major bleeding and thromboembolic risks.
Methods
This nationwide population-based cohort study included incident Danish AF patients aged ≥50 years between 01–01–1995 and 31–12–2016. Data on prior cancer, major bleeding and thromboembolisms (i.e. arterial and venous) were obtained from Danish health registries via International Classification of Diseases 10th Revision codes. We stratified according to prior cancer and by time between the AF and cancer diagnosis (i.e. <1 year, 1–3 years, >3 years), and cancer type. Data on antithrombotic exposure (e.g. no anticoagulant treatment, platelet inhibitors, vitamin K antagonists, direct oral anticoagulants, or combination of antithrombotic drugs) were evaluated as a time-dependent variable. We computed incidence rates per 100 patient-years and adjusted hazard ratios in a Cox regression model.
Results
We identified 39,178 AF patients with a prior cancer diagnosis. Bleeding risk increased with increasing number of antithrombotic drugs and was higher in AF patients with a history of cancer compared to those without, across all exposure categories (Figure 1). The increased bleeding risk was similar across different time intervals between cancer and AF diagnosis. The increased thromboembolic risk steeply declined with increasing time intervals between AF and cancer diagnosis (Figure 2). Prior gastrointestinal, intracranial, haematological, respiratory and urogenital cancers were associated with an increased bleeding risk. The two latter cancer types were also associated with increased thromboembolic risks.
Conclusion
We showed that patients with atrial fibrillation and a prior history of cancer experience higher rates of bleeding than those without cancer. Both respiratory and urogenital cancers had the highest rates of bleeding and thromboembolisms.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- G Chu
- Leiden University Medical Center, Department of Medicine - Thrombosis and Haemostasis, Leiden, Netherlands (The)
| | - N Van Rein
- Aarhus University Hospital, Department of Clinical Epidemiology, Aarhus, Denmark
| | - M V Huisman
- Leiden University Medical Center, Department of Medicine - Thrombosis and Haemostasis, Leiden, Netherlands (The)
| | - L Pedersen
- Aarhus University Hospital, Department of Clinical Epidemiology, Aarhus, Denmark
| | - F A Klok
- Leiden University Medical Center, Department of Medicine - Thrombosis and Haemostasis, Leiden, Netherlands (The)
| | - S C Cannegieter
- Leiden University Medical Center, Department of Clinical Epidemiology, Leiden, Netherlands (The)
| | - H T Sorensen
- Aarhus University Hospital, Department of Clinical Epidemiology, Aarhus, Denmark
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22
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Klok FA, Toenges G, Barco S, Konstantinides SV. Efficacy and safety of early switch to oral anticoagulation in acute intermediate-risk pulmonary embolism. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Guidelines recommend risk-adjusted management of pulmonary embolism (PE). We investigated whether treatment of acute intermediate-risk PE with parenteral anticoagulation for a short period of 72 hours, followed by switch to a direct oral anticoagulant (dabigatran), is effective and safe.
Methods
We conducted a prospective multicentre single-arm management trial in patients with intermediate-risk PE (EudraCT Identifier 2015–001830–12). Patients received parenteral heparin, switched to dabigatran 72 hours after diagnosis following standardised clinical assessment. The study was terminated early following sample size adaptation after the predefined interim analysis.
Findings
From January 2016 through July 2019, 402 patients were enrolled in 9 European countries. Adherence to protocol was 92.0% (Table 1). The primary outcome, recurrent symptomatic venous thromboembolism or PE-related death within 6 months (Table 2), occurred in 7 patients (1.7%; upper bound of right-sided 95% CI 3.2%; p=0.ehab724.192322 for rejecting H0), with all events in the intermediate-high-risk group (2.5%; upper bound of right-sided 95% CI 4.6%). Median duration of hospitalisation for the index event was 6 days, despite the fact that >70% of the patients had intermediate-high-risk PE. The six-month incidence of major bleeding was 2.7%; the only fatal haemorrhage occurred before switch to dabigatran.
Interpretation
A strategy of early switch from heparin to dabigatran following standardised clinical assessment was effective and safe in intermediate-risk PE. Our results can help to fine-tune guideline recommendations for initial treatment of PE, optimising the use of resources and avoiding prolonged hospitalisation.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): German Federal Ministry of Education and Research; and Boehringer Ingelheim Table 1. Time between diagnosis of pulmonary embolism and switch to dabigatran (N = 402 patients)Table 2. Efficacy and safety outcomes
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Affiliation(s)
- F A Klok
- Center for Thrombosis and Hemostasis, Mainz, Germany
| | - G Toenges
- Center for Thrombosis and Hemostasis, Mainz, Germany
| | - S Barco
- Center for Thrombosis and Hemostasis, Mainz, Germany
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23
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Kapteijn MY, Kaptein FHJ, Stals MAM, van Duinen SG, Taphoorn MJB, Dirven L, Koekoek JAF, Klok FA, Versteeg HH, Buijs JT. P04.10 CDKN2A mutational status is associated with venous thromboembolism in patients with glioblastoma. Neuro Oncol 2021. [DOI: 10.1093/neuonc/noab180.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND
Patients with glioblastoma have a high risk of developing venous thromboembolism (VTE). However, the underlying genetic risk factors remain largely unknown. Therefore, the aim of our study was to discover whether genetic aberrations in glioblastoma associate with VTE.
MATERIAL AND METHODS
In this retrospective cohort study, all patients diagnosed with glioblastoma between February 2017 and August 2020 in two hospitals (Leiden University Medical Center and Haaglanden Medical Center) were included (n=341). Targeted DNA next-generation sequencing (NGS) had been performed of all glioblastomas for diagnostic purposes and included tumor mutational status of the genes ATRX, BRAF, CIC, FUBP1, H3F3A, IDH1, IDH2, PIK3CA, PTEN and TP53 and amplification/gain or deletion of BRAF, CDKN2A, EGFR, NOTCH1 and PTEN. Through extensive chart review, we collected data on VTE events (deep vein thrombosis and/or pulmonary embolism) three months before until two years after glioblastoma diagnosis, which were adjudicated by an independent investigator. Patients with cerebral vein thrombosis (n=3) and low quality NGS data (n=1; minimum reads/samples: <1.5M and/or minimum depth: <100 reads) were excluded. Cox regression analysis and competing risk analysis (CICR) were performed to compare patients that developed VTE with patients that did not.
RESULTS
Of the 337 patients, 215 had died, 26 were diagnosed with VTE and 37 were lost to follow-up. CDKN2A deletion was found to associate most significantly with VTE (HR: 2.65, 95%CI: 1.18–5.94, p=0.018). Competing risk analysis confirmed this finding, demonstrating a 12-month adjusted cumulative incidence of 12.7% (95%CI: 7.5–19.3) compared to 5.2% (95%CI: 2.5–9.2) in patients with CDKN2A wild-type (p=0.013). No significant association was found between any of the investigated genes, including CDKN2A deletion, and death.
CONCLUSION
This study demonstrates that CDKN2A deletion is associated with VTE in glioblastoma patients. Therefore, CDKN2A mutational status may be a promising predictor to identify patients with glioblastoma at high risk of VTE, who may benefit from thromboprophylaxis.
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Affiliation(s)
- M Y Kapteijn
- Leiden University Medical Center, Leiden, Netherlands
| | - F H J Kaptein
- Leiden University Medical Center, Leiden, Netherlands
| | - M A M Stals
- Leiden University Medical Center, Leiden, Netherlands
| | | | - M J B Taphoorn
- Leiden University Medical Center, Leiden, Netherlands
- Haaglanden Medical Center, The Hague, Netherlands
| | - L Dirven
- Leiden University Medical Center, Leiden, Netherlands
- Haaglanden Medical Center, The Hague, Netherlands
| | - J A F Koekoek
- Leiden University Medical Center, Leiden, Netherlands
- Haaglanden Medical Center, The Hague, Netherlands
| | - F A Klok
- Leiden University Medical Center, Leiden, Netherlands
| | - H H Versteeg
- Leiden University Medical Center, Leiden, Netherlands
| | - J T Buijs
- Leiden University Medical Center, Leiden, Netherlands
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24
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Asady E, Ghanima W, Jelsness‐Jorgensen L, Klok FA, Kahn SR, Stromme H, Wik HS. Health-related quality-of-life questionnaires for deep vein thrombosis and pulmonary embolism: A systematic review on questionnaire development and methodology. Res Pract Thromb Haemost 2021; 5:e12556. [PMID: 34278190 PMCID: PMC8279125 DOI: 10.1002/rth2.12556] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/19/2021] [Accepted: 05/04/2021] [Indexed: 12/25/2022] Open
Abstract
To improve the quality and accuracy of the patient-reported outcome measures that assess health-related quality of life (HRQoL), guidelines have been developed to standardize the development and validation process. Considering the increasing importance of HRQoL questionnaires in research, we set out to review the literature and evaluate whether existing questionnaires developed for deep vein thrombosis (DVT) and pulmonary embolism (PE) fulfill state-of-the-art requirements. The literature search was conducted in March 2019 and updated in September 2020. Seven databases were searched. No time limit was set for the search to include all available questionnaires. The inclusion criteria were original publications describing the development of disease-specific HRQoL questionnaires specific to DVT or PE in adults and available in English. The questionnaires were assessed to determine whether they fulfill the requirements in the latest guidelines. A total of 3826 references were identified. After the exclusion process, 15 papers were reviewed in full, of which 7 were included. Four questionnaires were developed for chronic venous disease, two were specific to DVT, and one was specific to PE. Most questionnaires we found in this review, fulfilled some but none fulfilled all recommendations in existing guidelines. Because the development of current available HRQoL questionnaires specific to DVT or PE do not fulfil all recommendations of existing guidelines, there is room for improvements within this field. Such improvements could likely enhance the quality associated with the use of these end points in clinical trials and practice.
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Affiliation(s)
- Elia Asady
- Department of ResearchØstfold Hospital TrustGrålumNorway
- Institute of Clinical MedicineUniversity of OsloOsloNorway
| | - Waleed Ghanima
- Department of ResearchØstfold Hospital TrustGrålumNorway
- Institute of Clinical MedicineUniversity of OsloOsloNorway
- Department of HaematologyOslo University HospitalOsloNorway
| | - Lars‐Petter Jelsness‐Jorgensen
- Department of ResearchØstfold Hospital TrustGrålumNorway
- Department of Health SciencesØstfold University CollegeHaldenNorway
| | - F. A. Klok
- Department of Medicine – Thrombosis and HemostasisLeiden University Medical CenterLeidenThe Netherlands
| | - Susan R. Kahn
- McGill UniversityMontrealQCCanada
- Jewish General HospitalMontrealQCCanada
| | - Hilde Stromme
- Library of Medicine and ScienceUniversity of OsloNorway
| | - Hilde S. Wik
- Department of HaematologyOslo University HospitalOsloNorway
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25
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Abstract
Accumulating studies on COVID-19 patients report high incidences of thrombotic complications, but guidance on the best diagnostic approach for suspected pulmonary embolism (PE) in COVID-19 patients is lacking. Diagnosing PE in these patients is challenging as signs and symptoms of PE and COVID-19 show wide overlap, D-dimer levels are often elevated in the absence of thrombosis and computed tomography pulmonary angiography (CTPA) may be unfeasible in the case of severe renal impairment and/or hemodynamic instability.This narrative review discusses available literature and guidelines on current diagnostic algorithms for suspected PE in special patient populations, in particular COVID-19. A special focus is on reviewing the literature aimed at identifying symptoms with a high suspicion for PE and on the diagnostic performance of diagnostic algorithms for suspected PE in the setting of COVID-19.Based on available literature, the index of suspicion for PE should be high in the case of unexplained abrupt worsening of respiratory status, typical symptoms of deep-vein thrombosis and/or acute unexplained right ventricular dysfunction. Despite the lack of prospective diagnostic management studies, we propose to adhere to current diagnostic algorithms applying assessment of pretest probability and D-dimer testing as available evidence suggests that these might be considered safe. Preferably, algorithms using adjusted D-dimer thresholds are recommended as it likely improves the yield of the clinical decision rule/D-dimer combination.
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Affiliation(s)
- Mam Stals
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands
| | - Fhj Kaptein
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands
| | - Ljm Kroft
- Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands
| | - M V Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands
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Tieleman RG, Klok FA, Belfroid E, Hoogervorst-Schilp J, Schalkers I, Jansen CW, Siebelink HJ. Effect of anticoagulant therapy in COVID-19 patients. Neth Heart J 2021; 29:35-44. [PMID: 33861430 PMCID: PMC8050812 DOI: 10.1007/s12471-021-01574-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND In patients hospitalised with COVID-19, an increased incidence of thromboembolic events, such as pulmonary embolism, deep vein thrombosis and stroke, has been reported. It is unknown whether anticoagulation can prevent these complications and improve outcome. METHODS A systematic literature search was performed to answer the question: What is the effect of (prophylactic and therapeutic dose) anticoagulation therapy in COVID-19 patients on cardiovascular and thromboembolic complications and clinical outcome? Relevant outcome measures were mortality (crucial), hospital admission, length of stay, thromboembolic complications (pulmonary embolism, stroke, transient ischaemic attack), need for mechanical ventilation, acute kidney injury and use of renal replacement therapy. Medline and Embase databases were searched with relevant search terms until 17 July 2020. After systematic analysis, eight studies were included. Analysis was stratified for the start of anticoagulation before or during hospital admission. RESULTS There was insufficient evidence that therapeutic anticoagulation could improve the outcome in patients hospitalised with COVID-19. None of the studies demonstrated improved mortality, except for one very small Italian study. Furthermore, none of the studies showed a positive effect of anticoagulation on other outcome measures in COVID-19, such as ICU admission, length of hospital stay, thromboembolic complications, need for mechanical ventilation, acute kidney failure or need for renal replacement therapy, except for two studies demonstrating an association between anticoagulation and a lower incidence of pulmonary embolism. However, the level of evidence of all studies varied from 'low' to 'very low', according to the GRADE methodology. CONCLUSION Analysis of the literature showed that there was insufficient evidence to answer our objective on the effect of anticoagulation on outcome in COVID-19 patients, especially due to the low scientific quality of the described studies. Randomised controlled studies are needed to answer this question.
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Affiliation(s)
- R G Tieleman
- Department of Cardiology, Martini Hospital, Groningen, The Netherlands.
| | - F A Klok
- Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - E Belfroid
- Knowledge Institute of Medical Specialists, Utrecht, The Netherlands
| | | | | | - C W Jansen
- Netherlands Society of Cardiology, Utrecht, The Netherlands
| | - H J Siebelink
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
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27
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Kaptein FHJ, Kroft LJM, Hammerschlag G, Ninaber MK, Bauer MP, Huisman MV, Klok FA. Pulmonary infarction in acute pulmonary embolism. Thromb Res 2021; 202:162-169. [PMID: 33862471 DOI: 10.1016/j.thromres.2021.03.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/05/2021] [Accepted: 03/24/2021] [Indexed: 01/10/2023]
Abstract
Pulmonary infarction results from occlusion of the distal pulmonary arteries leading to ischemia, hemorrhage and ultimately necrosis of the lung parenchyma. It is most commonly caused by acute pulmonary embolism (PE), with a reported incidence of around 30%. Following an occlusion of the pulmonary artery, the bronchial arteries are recruited as primary source of perfusion of the pulmonary capillaries. The relatively higher blood pressure in the bronchial circulation causes an increase in the capillary blood flow, leading to extravasation of erythrocytes (i.e. alveolar hemorrhage). If this hemorrhage cannot be resorbed, it results in tissue necrosis and infarction. Different definitions of pulmonary infarction are used in literature (clinical, radiological and histological), although the diagnosis is nowadays mostly based on radiological characteristics. Notably, the infarcted area is only replaced by a fibrotic scar over a period of months. Hence and formally, the diagnosis of pulmonary infarction cannot be confirmed upon diagnosis of acute PE. Little is known of the impact and relevance of pulmonary infarction in acute PE, and whether specific management strategies should be applied to prevent and/or treat complications such as pain, pneumonia or post-PE syndrome. In this review we will summarize current knowledge on the pathophysiology, epidemiology, diagnosis and prognosis of pulmonary infarction in the setting of acute PE. We highlight the need for dedicated studies to overcome the current knowledge gaps.
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Affiliation(s)
- F H J Kaptein
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - L J M Kroft
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - G Hammerschlag
- Department of Respiratory and Sleep Medicine, The Royal Melbourne Hospital, Melbourne, Australia
| | - M K Ninaber
- Department of Pulmonology, Leiden University Medical Center, Leiden, the Netherlands
| | - M P Bauer
- Department of Medicine - Acute Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - M V Huisman
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - F A Klok
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
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28
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Kaptein FHJ, Stals MAM, Grootenboers M, Braken SJE, Burggraaf JLI, van Bussel BCT, Cannegieter SC, Ten Cate H, Endeman H, Gommers DAMPJ, van Guldener C, de Jonge E, Juffermans NP, Kant KM, Kevenaar ME, Koster S, Kroft LJM, Kruip MJHA, Leentjens J, Marechal C, Soei YL, Tjepkema L, Visser C, Klok FA, Huisman MV. Incidence of thrombotic complications and overall survival in hospitalized patients with COVID-19 in the second and first wave. Thromb Res 2021; 199:143-148. [PMID: 33535120 PMCID: PMC7832218 DOI: 10.1016/j.thromres.2020.12.019] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 12/22/2022]
Abstract
INTRODUCTION In the first wave, thrombotic complications were common in COVID-19 patients. It is unknown whether state-of-the-art treatment has resulted in less thrombotic complications in the second wave. METHODS We assessed the incidence of thrombotic complications and overall mortality in COVID-19 patients admitted to eight Dutch hospitals between September 1st and November 30th 2020. Follow-up ended at discharge, transfer to another hospital, when they died, or on November 30th 2020, whichever came first. Cumulative incidences were estimated, adjusted for competing risk of death. These were compared to those observed in 579 patients admitted in the first wave, between February 24th and April 26th 2020, by means of Cox regression techniques adjusted for age, sex and weight. RESULTS In total 947 patients with COVID-19 were included in this analysis, of whom 358 patients were admitted to the ICU; 144 patients died (15%). The adjusted cumulative incidence of all thrombotic complications after 10, 20 and 30 days was 12% (95% confidence interval (CI) 9.8-15%), 16% (13-19%) and 21% (17-25%), respectively. Patient characteristics between the first and second wave were comparable. The adjusted hazard ratio (HR) for overall mortality in the second wave versus the first wave was 0.53 (95%CI 0.41-0.70). The adjusted HR for any thrombotic complication in the second versus the first wave was 0.89 (95%CI 0.65-1.2). CONCLUSIONS Mortality was reduced by 47% in the second wave, but the thrombotic complication rate remained high, and comparable to the first wave. Careful attention to provision of adequate thromboprophylaxis is invariably warranted.
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Affiliation(s)
- F H J Kaptein
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - M A M Stals
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - M Grootenboers
- Department of Pulmonology, Amphia Hospital Breda, the Netherlands
| | - S J E Braken
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - J L I Burggraaf
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - B C T van Bussel
- Department of Intensive Care Medicine, Maastricht, UMC+, Maastricht, the Netherlands; Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, the Netherlands
| | - S C Cannegieter
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands; Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - H Ten Cate
- Department of Internal Medicine, Cardiovascular Research Institute Maastricht, Maastricht, the Netherlands
| | - H Endeman
- Department of Adult Intensive Care, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - D A M P J Gommers
- Department of Adult Intensive Care, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - C van Guldener
- Department of Internal Medicine, Amphia Hospital Breda, the Netherlands
| | - E de Jonge
- Department of Intensive Care Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - N P Juffermans
- Department of Intensive Care Medicine, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands
| | - K M Kant
- Department of Intensive Care Medicine, Amphia Hospital Breda, the Netherlands
| | - M E Kevenaar
- Department of Internal Medicine, Franciscus Gasthuis& Vlietland, Rotterdam, the Netherlands
| | - S Koster
- Department of Intensive Care Medicine, Zaans Medical Center, Zaandam, the Netherlands
| | - L J M Kroft
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - M J H A Kruip
- Department of Hematology, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - J Leentjens
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - C Marechal
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - Y L Soei
- Department of Internal Medicine, Franciscus Gasthuis& Vlietland, Rotterdam, the Netherlands
| | - L Tjepkema
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - C Visser
- Department of Hematology, Erasmus MC, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - M V Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
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van Dam LF, Kroft LJM, van der Wal LI, Cannegieter SC, Eikenboom J, de Jonge E, Huisman MV, Klok FA. Clinical and computed tomography characteristics of COVID-19 associated acute pulmonary embolism: A different phenotype of thrombotic disease? Thromb Res 2020; 193:86-89. [PMID: 32531548 PMCID: PMC7274953 DOI: 10.1016/j.thromres.2020.06.010] [Citation(s) in RCA: 127] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/03/2020] [Accepted: 06/04/2020] [Indexed: 01/08/2023]
Abstract
INTRODUCTION COVID-19 infections are associated with a high prevalence of venous thromboembolism, particularly pulmonary embolism (PE). It is suggested that COVID-19 associated PE represents in situ immunothrombosis rather than venous thromboembolism, although the origin of thrombotic lesions in COVID-19 patients remains largely unknown. METHODS In this study, we assessed the clinical and computed tomography (CT) characteristics of PE in 23 consecutive patients with COVID-19 pneumonia and compared these to those of 100 consecutive control patients diagnosed with acute PE before the COVID-19 outbreak. Specifically, RV/LV diameter ratio, pulmonary artery trunk diameter and total thrombus load (according to Qanadli score) were measured and compared. RESULTS We observed that all thrombotic lesions in COVID-19 patients were found to be in lung parenchyma affected by COVID-19. Also, the thrombus load was lower in COVID-19 patients (Qanadli score -8%, 95% confidence interval [95%CI] -16 to -0.36%) as was the prevalence of the most proximal PE in the main/lobar pulmonary artery (17% versus 47%; -30%, 95%CI -44% to -8.2). Moreover, the mean RV/LV ratio (mean difference -0.23, 95%CI -0.39 to -0.07) and the prevalence of RV/LV ratio >1.0 (prevalence difference -23%, 95%CI -41 to -0.86%) were lower in the COVID-19 patients. CONCLUSION Our findings therefore suggest that the phenotype of COVID-19 associated PE indeed differs from PE in patients without COVID-19, fuelling the discussion on its pathophysiology.
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Affiliation(s)
- L F van Dam
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - L J M Kroft
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - L I van der Wal
- Department of Intensive Care Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - S C Cannegieter
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands; Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - J Eikenboom
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - E de Jonge
- Department of Intensive Care Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - M V Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
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30
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Klok FA, Kruip MJHA, van der Meer NJM, Arbous MS, Gommers DAMPJ, Kant KM, Kaptein FHJ, van Paassen J, Stals MAM, Huisman MV, Endeman H. Incidence of thrombotic complications in critically ill ICU patients with COVID-19. Thromb Res 2020; 191:145-147. [PMID: 32291094 PMCID: PMC7146714 DOI: 10.1016/j.thromres.2020.04.013] [Citation(s) in RCA: 3225] [Impact Index Per Article: 806.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION COVID-19 may predispose to both venous and arterial thromboembolism due to excessive inflammation, hypoxia, immobilisation and diffuse intravascular coagulation. Reports on the incidence of thrombotic complications are however not available. METHODS We evaluated the incidence of the composite outcome of symptomatic acute pulmonary embolism (PE), deep-vein thrombosis, ischemic stroke, myocardial infarction or systemic arterial embolism in all COVID-19 patients admitted to the ICU of 2 Dutch university hospitals and 1 Dutch teaching hospital. RESULTS We studied 184 ICU patients with proven COVID-19 pneumonia of whom 23 died (13%), 22 were discharged alive (12%) and 139 (76%) were still on the ICU on April 5th 2020. All patients received at least standard doses thromboprophylaxis. The cumulative incidence of the composite outcome was 31% (95%CI 20-41), of which CTPA and/or ultrasonography confirmed VTE in 27% (95%CI 17-37%) and arterial thrombotic events in 3.7% (95%CI 0-8.2%). PE was the most frequent thrombotic complication (n = 25, 81%). Age (adjusted hazard ratio (aHR) 1.05/per year, 95%CI 1.004-1.01) and coagulopathy, defined as spontaneous prolongation of the prothrombin time > 3 s or activated partial thromboplastin time > 5 s (aHR 4.1, 95%CI 1.9-9.1), were independent predictors of thrombotic complications. CONCLUSION The 31% incidence of thrombotic complications in ICU patients with COVID-19 infections is remarkably high. Our findings reinforce the recommendation to strictly apply pharmacological thrombosis prophylaxis in all COVID-19 patients admitted to the ICU, and are strongly suggestive of increasing the prophylaxis towards high-prophylactic doses, even in the absence of randomized evidence.
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Affiliation(s)
- F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
| | - M J H A Kruip
- Department of Haematology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - N J M van der Meer
- Department of Anesthesiology and Critical Care, Amphia Hospital Breda and Oosterhout the Netherlands and TIAS/Tilburg University, Tilburg, the Netherlands
| | - M S Arbous
- Department of Intensive Care Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - D A M P J Gommers
- Department of Adult Intensive Care, Erasmus Medical Center, Rotterdam, the Netherlands
| | - K M Kant
- Department of Intensive Care, Amphia Hospital, Breda, the Netherlands
| | - F H J Kaptein
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - J van Paassen
- Department of Intensive Care Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - M A M Stals
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - M V Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - H Endeman
- Department of Adult Intensive Care, Erasmus Medical Center, Rotterdam, the Netherlands
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Meijer FMM, Hendriks SV, Huisman MV, van der Hulle T, Swenne CA, Kies P, Jongbloed MRM, Egorova AD, Vliegen HW, Klok FA. Lack of diagnostic utility of the ECG-derived ventricular gradient in patients with suspected acute pulmonary embolism. J Electrocardiol 2020; 61:141-146. [PMID: 32619875 DOI: 10.1016/j.jelectrocard.2020.06.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 05/12/2020] [Accepted: 06/03/2020] [Indexed: 10/24/2022]
Abstract
INTRODUCTION The YEARS algorithm was successfully developed to reduce the number of computed tomography pulmonary angiography (CTPA) investigations in the diagnostic management of patients with suspected pulmonary embolism (PE), although half of patients still needed to be referred for CTPA. We hypothesized that ECG derived ventricular gradient optimized for right ventricular pressure overload (VG-RVPO), an easy to use tool for detecting PE-induced pulmonary hypertension (PH), may further improve the efficiency of the YEARS algorithm. METHODS In this post-hoc analysis of the Years study, ECGs of 479 patients with suspected PE managed according to the YEARS algorithm were available for analysis. The diagnostic performance of VG-RVPO was assessed and likelihood ratios were calculated. RESULTS PE was diagnosed in 88 patients (18%). In patients with confirmed PE, 34% had an abnormal VG-RVPO versus 24% of those without PE (odds ratio 1.6; 95%CI 0.94-2.6). The mean VG-RVPO was -22 ± 13 and did not differ between the two patient groups (-22 versus -20; mean difference - 2, 95% CI -4.8 to 1.3). The sensitivity of VG-RVPO for PE was 24% (95%CI 34-45), the specificity 76% (95%CI 71-80) and the c-statistic 0.45 (95% CI 0.38-0.51). When combined with the YEARS algorithm, the likelihood ratios of VG-RVPO remained close to 1.0. Ruling out PE in patients with an indication for CTPA based on a normal VG-RVPO would have resulted in 58 missed cases. CONCLUSIONS The VG-RVPO has no diagnostic value for suspected acute PE, either as stand-alone diagnostic test or combined with the YEARS algorithm. CONDENSED ABSTRACT This post-hoc analysis of the YEARS study failed to demonstrate incremental diagnostic value of VG-RVPO for acute PE, either as stand-alone diagnostic test or combined with the YEARS algorithm. Nevertheless, the role of VG-RVPO recorded on admission could potentially be valuable in the risk stratification of PE during hospitalization, although this remains to be studied.
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Affiliation(s)
- F M M Meijer
- Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands.
| | - S V Hendriks
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - M V Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - T van der Hulle
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - C A Swenne
- Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands
| | - P Kies
- Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands
| | - M R M Jongbloed
- Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands; Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, the Netherlands
| | - A D Egorova
- Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands
| | - H W Vliegen
- Heart Lung Center, Leiden University Medical Center, Leiden, the Netherlands
| | - F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
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Klok FA, Kruip MJHA, van der Meer NJM, Arbous MS, Gommers D, Kant KM, Kaptein FHJ, van Paassen J, Stals MAM, Huisman MV, Endeman H. Confirmation of the high cumulative incidence of thrombotic complications in critically ill ICU patients with COVID-19: An updated analysis. Thromb Res 2020; 191:148-150. [PMID: 32381264 PMCID: PMC7192101 DOI: 10.1016/j.thromres.2020.04.041] [Citation(s) in RCA: 1132] [Impact Index Per Article: 283.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION We recently reported a high cumulative incidence of thrombotic complications in critically ill patients with COVID-19 admitted to the intensive care units (ICUs) of three Dutch hospitals. In answering questions raised regarding our study, we updated our database and repeated all analyses. METHODS We re-evaluated the incidence of the composite outcome of symptomatic acute pulmonary embolism (PE), deep-vein thrombosis, ischemic stroke, myocardial infarction and/or systemic arterial embolism in all COVID-19 patients admitted to the ICUs of 2 Dutch university hospitals and 1 Dutch teaching hospital from ICU admission to death, ICU discharge or April 22nd 2020, whichever came first. RESULTS We studied the same 184 ICU patients as reported on previously, of whom a total of 41 died (22%) and 78 were discharged alive (43%). The median follow-up duration increased from 7 to 14 days. All patients received pharmacological thromboprophylaxis. The cumulative incidence of the composite outcome, adjusted for competing risk of death, was 49% (95% confidence interval [CI] 41-57%). The majority of thrombotic events were PE (65/75; 87%). In the competing risk model, chronic anticoagulation therapy at admission was associated with a lower risk of the composite outcome (Hazard Ratio [HR] 0.29, 95%CI 0.091-0.92). Patients diagnosed with thrombotic complications were at higher risk of all-cause death (HR 5.4; 95%CI 2.4-12). Use of therapeutic anticoagulation was not associated with all-cause death (HR 0.79, 95%CI 0.35-1.8). CONCLUSION In this updated analysis, we confirm the very high cumulative incidence of thrombotic complications in critically ill patients with COVID-19 pneumonia.
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Affiliation(s)
- F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
| | - M J H A Kruip
- Department of Hematology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - N J M van der Meer
- Department of Anesthesiology and Critical Care, Amphia Hospital Breda, Oosterhout, the Netherlands; TIAS/Tilburg University Tilburg, the Netherlands
| | - M S Arbous
- Department of Intensive Care Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - D Gommers
- Department of Adult Intensive Care, Erasmus Medical Center, Rotterdam, the Netherlands
| | - K M Kant
- Department of Intensive Care, Amphia Hospital, Breda, the Netherlands
| | - F H J Kaptein
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - J van Paassen
- Department of Intensive Care Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - M A M Stals
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - M V Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - H Endeman
- Department of Adult Intensive Care, Erasmus Medical Center, Rotterdam, the Netherlands
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Boon GJAM, Barco S, Bertoletti L, Ghanima W, Huisman MV, Kahn SR, Noble S, Prandoni P, Rosovsky RP, Sista AK, Siegerink B, Klok FA. Measuring functional limitations after venous thromboembolism: Optimization of the Post-VTE Functional Status (PVFS) Scale. Thromb Res 2020; 190:45-51. [PMID: 32298840 DOI: 10.1016/j.thromres.2020.03.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/25/2020] [Accepted: 03/27/2020] [Indexed: 12/24/2022]
Abstract
INTRODUCTION We recently proposed a scale for assessment of patient-relevant functional limitations following an episode of venous thromboembolism (VTE). Further development of this post-VTE functional status (PVFS) scale is still needed. METHODS Guided by the input of VTE experts and patients, we refined the PVFS scale and its accompanying manual, and attempted to acquire broad consensus on its use. RESULTS A Delphi analysis was performed involving 53 international VTE experts with diverse scientific and clinical backgrounds. In this process, the number of scale grades of the originally proposed PVFS scale was reduced and descriptions of the grades were improved. After these changes, a consensus was reached on the number/definitions of the grades, and method/timing of the scale assessment. The relevance and potential impact of the scale was confirmed in three focus groups totaling 18 VTE patients, who suggested additional changes to the manual, but not to the scale itself. Using the improved manual, the κ-statistics between PVFS scale self-reporting and its assessment via the structured interview was 0.75 (95%CI 0.58-1.0), and 1.0 (95%CI 0.83-1.0) between independent raters of the recorded interview of 16 focus groups members. CONCLUSION We improved the PVFS scale and demonstrated broad consensus on its relevance, optimal grades, and methods of assessing among international VTE experts and patients. The interobserver agreement of scale grade assignment was shown to be good-to-excellent. The PVFS scale may become an important outcome measure of functional impairment for quality of patient care and in future VTE trials.
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Affiliation(s)
- G J A M Boon
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - S Barco
- Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany; Clinic of Angiology, University Hospital of Zurich, Zurich, Switzerland
| | - L Bertoletti
- Service de Médecine Vasculaire et Thérapeutique, CHU de St-Étienne, Saint-Étienne, France; INSERM UMR 1059 and CIC 1408, Université Jean-Monnet, Saint-Étienne, France
| | - W Ghanima
- Department of Oncology, Østfold Hospital Trust, Kalnes, Norway; Department Medicine and Research, Østfold Hospital Trust, Kalnes, Norway
| | - M V Huisman
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - S R Kahn
- Division of Clinical Epidemiology, Department of Medicine, Jewish General Hospital, Montreal, QC, Canada
| | - S Noble
- Marie Curie Palliative Care Research Centre, Cardiff University, Cardiff, UK
| | - P Prandoni
- Arianna Foundation on Anticoagulation, Bologna, Italy
| | - R P Rosovsky
- Department of Medicine, Hematology/Oncology, Massachusetts General Hospital, Boston, MA, United States
| | - A K Sista
- Department of Radiology, New York University School of Medicine, New York, NY, United States
| | - B Siegerink
- Center for Stroke Research Berlin, Charité Universitätsmedizin Berlin, Berlin, Germany; Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - F A Klok
- Department of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands; Center for Thrombosis and Hemostasis (CTH), University Medical Center Mainz, Mainz, Germany.
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van Es J, Cheung YW, van Es N, Klok FA, Dronkers CEA, Ten Wolde M, Kruip MJHA, Huisman MV, Meijer K, Kamphuisen PW, Gerdes VEA, Middeldorp S. Short-term prognosis of breakthrough venous thromboembolism in anticoagulated patients. Thromb Res 2020; 187:125-130. [PMID: 31986475 DOI: 10.1016/j.thromres.2020.01.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Evidence for guideline recommendations for the treatment of venous thromboembolism (VTE) during anticoagulant therapy is scarce. We aimed to observe and to describe the management of VTE occurring during anticoagulant therapy. METHODS This prospective multi-center, observational study included patients with objectively confirmed VTE during anticoagulant therapy (breakthrough event), with a follow-up of 3 months, after the breakthrough event. RESULTS We registered 121 patients with a breakthrough event, with a mean age of 56 years (range, 19 to 90); 61 were male (50%). Fifty-eight patients (48%) had an active malignancy. At the time of the breakthrough event, 57 patients (47%) were treated with a vitamin K antagonist (VKA), 53 patients (44%) with low-molecular-weight heparin (LMWH) and 11 patients (9%) with direct oral anticoagulants, unfractionated heparin, or VKA plus LMWH. A total of 21 patients (17%) were receiving a subtherapeutic dose of an anticoagulant. The main regimens to treat recurrence in patients on VKA were: switch to LMWH (33%), temporary double treatment with LMWH and VKA (23%), and VKA with a higher target INR (19%). In patients with a breakthrough on LMWH, the most frequently chosen regimen was a permanent dose increase (74%). During 3-month follow-up, 7% of patients had a second breakthrough event and 8% experienced major or clinically relevant non-major bleeding. CONCLUSION There is wide variation in the management of VTE during anticoagulant treatment, reflecting a heterogeneous and complex clinical situation. Despite intensifying anticoagulation, the risk of a second breakthrough event in this population is 7%.
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Affiliation(s)
- J van Es
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Cardiovascular Sciences, Amsterdam, the Netherlands; Department of Pulmonology, OLVG, Amsterdam, the Netherlands.
| | - Y W Cheung
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Cardiovascular Sciences, Amsterdam, the Netherlands
| | - N van Es
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Cardiovascular Sciences, Amsterdam, the Netherlands
| | - F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - C E A Dronkers
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - M Ten Wolde
- Department of Internal Medicine, Flevoziekenhuis, Almere, the Netherlands
| | - M J H A Kruip
- Department of Hematology, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - M V Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - K Meijer
- Division of Hemostasis and Thrombosis, Department of Hematology, University Medical Center Groningen, Groningen, the Netherlands
| | - P W Kamphuisen
- Department of Internal Medicine, Tergooi Hospital, Hilversum, the Netherlands
| | - V E A Gerdes
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Cardiovascular Sciences, Amsterdam, the Netherlands
| | - S Middeldorp
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Cardiovascular Sciences, Amsterdam, the Netherlands
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Klok FA, Chu KG, Valerio L, Van Der Wall SJ, Barco S, Konstantinides S, Huisman MV. P4767VTE-BLEED score predicts major bleeding in patients with atrial fibrillation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.1143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Bleeding risk scores in atrial fibrillation (AF) are used to identify risk factors for bleeding but not to determine anticoagulant therapy since high bleeding risk strongly correlates to high risk of stroke. VTE-BLEED is a simple bleeding risk score (Klok FA Eur Respir J 2016) that predicts major bleeding (MB) in patients with venous thromboembolism, but has never been evaluated in AF.
Aims
To evaluate VTE-BLEED in AF and whether dabigatran dose reduction in VTE-BLEED high-risk patients would result in a lower incidence of MB and the composite endpoint of MB plus stroke/systemic embolism.
Methods
Assessment of VTE-BLEED in 18040 patients of the RE-LY trial (Connolly SJ NEJM 2009) that compared dabigatran (both 150mg BID and 110mg BID) to warfarin. The score was calibrated to fit the AF population. Hazard ratios (HR) were obtained for the VTE-BLEED high-risk patients randomized to dabigatran. The risk ratios for MB and the composite outcome of MB plus stroke/systemic embolism between dabigatran 150mg and 110mg were calculated for the VTE-BLEED high-risk group.
Results
The adapted VTE-BLEED score classified 4060 patients (22.5%) as high-risk. A high score indeed predicted MB in patients treated with dabigatran 150mg BID or 110mg BID, for HRs of 2.48 (95% CI 1.96–3.13) and 2.61 (95% CI 2.04–3.33), respectively. In VTE-BLEED high-risk patients, the risk ratio between the two dabigatran doses was 0.53 (95% CI 0.35–0.78) for MB and 0.55 (95% CI 0.38–0.79) for the composite outcome, both in favor of dabigatran 110mg BID (Figure 1). Compared to the current European label of dabigatran, application of VTE-BLEED to determine dabigatran dosing would result in a different dose for 21% of patients.
Figure 1
Conclusions
VTE-BLEED was validated for AF. Our data suggest that dabigatran dose reduction in VTE-BLEED bleed high-risk patients -in addition to targeting individual modifiable risk factors for bleeding- may lower the risk of MB and improve patient outcome. This finding could have important clinical implications but should be confirmed in future studies.
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Affiliation(s)
- F A Klok
- Leiden University Medical Center, Leiden, Netherlands (The)
| | - K G Chu
- Leiden University Medical Center, Leiden, Netherlands (The)
| | - L Valerio
- Center for Thrombosis and Hemostasis, Mainz, Germany
| | | | - S Barco
- Center for Thrombosis and Hemostasis, Mainz, Germany
| | | | - M V Huisman
- Center for Thrombosis and Hemostasis, Mainz, Germany
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Barco S, Mavromanoli A, Klok FA, Konstantinides SV. P2772The rule-out criteria for chronic thromboembolic pulmonary hypertension can identify patients without haemodynamic abnormalities and functional limitation 3 and 12 months after acute PE. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Up to one-third of patients report persisting hemodynamic abnormalities and functional limitation over long-term follow-up after acute pulmonary embolism (PE).
Purpose
We tested whether a validated algorithm designed to rule-out chronic thromboembolic pulmonary hypertension (CTEPH) after acute PE can be used for identifying patients at lower risk of presenting with persisting symptoms and echocardiographic abnormalities.
Methods
The multicentre Follow-up of Acute Pulmonary Embolism (FOCUS) cohort study prospectively enrolled 1,100 consecutive patients diagnosed with acute symptomatic PE; two-year follow-up is ongoing. We focused on the scheduled visits for 3- and 12-month follow-up. The rule-out criteria are based on: the absence of ECG signs of right ventricular dysfunction and normal NT-proBNP/BNP values. Echocardiographic abnormalities were defined according to the presence of abnormal parameters indicating an intermediate/high probability of pulmonary hypertension as recommended by the 2015 ESC/ERS Society Guidelines on Pulmonary Hypertension. The presence of functional limitation was defined based on a World Health Organization classification grade ≥3, a Borg dyspnoea index ≥4, or a 6-minute walking distance <300 m.
Results
We included 323 patients (mean age 61 years, 58% men), of whom 255 have meanwhile completed a one-year follow-up. At 3- and 12-month follow-up, 194 (60%) and 155 (61%) of patients exhibited no abnormal echocardiographic findings or natriuretic peptide levels. The percentage of patients with echocardiographic abnormalities was 20.4% and 18.0%, respectively. The negative predictive value of the score for ruling out the combination of functional limitation and intermediate/high probability of pulmonary hypertension as recommended by the 2015 ESC/ERS Guidelines on Pulmonary Hypertension was 0.96 (95% CI 0.92–0.98) at 3 and 0.97 (0.92–0.99) at 12 months. The corresponding positive predictive values were 0.10 (0.06–0.17) and 0.09 (0.05–0.17), respectively.
Conclusions
The CTEPH rule-out criteria are capable of excluding functional limitation and evidence of (chronic) pulmonary hypertension 3 and 12 months after the diagnosis of acute PE.
Acknowledgement/Funding
The sponsor (University Medical Center of the Johannes Gutenberg University, Mainz) has obtained grants from Bayer Vital GmbH and Bayer Pharma AG
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Affiliation(s)
- S Barco
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - A Mavromanoli
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - F A Klok
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - S V Konstantinides
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
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Barco S, Russo M, Klok FA, Konstantinides SV. P5017Factors associated with a negative D-dimer test in patients diagnosed with acute symptomatic pulmonary embolism. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The recommended diagnostic strategy for suspected acute pulmonary embolism (PE) combines the assessment of pre-test probability, D-dimer level, and -if indicated- computed tomography pulmonary angiography.
Purpose
To evaluate the frequency and potential explanations for negative D-dimer tests in patients diagnosed with acute PE.
Methods
The multicentre Follow-up of Acute Pulmonary Embolism (FOCUS) cohort study prospectively enrolled 1,100 consecutive patients diagnosed with acute symptomatic PE; two-year follow-up is ongoing. The items of the Simplified revised Geneva Score and the D-dimer levels at diagnosis have been prospectively collected, but they did not necessarily guide management decisions. Quantitative D-dimer was measured on admission either by quantitative latex-based assays or enzyme-linked immunosorbent assays. A negative D-dimer was defined by fixed (0.50 μg/mL) or age-adjusted (age*0.01 μg/mL if age>50) cut-off.
Results
Using the fixed cut-off, a negative D-Dimer was detected in 17 of 773 patients with ultimately diagnosed PE (miss rate 2.2% [95% CI 1.4–3.5]); using the age-adjusted cut-off, the test was discordant with the PE diagnosis in 24 patients (3.1% [2.1–4.6]). In Figure 1, red dots indicate negative D-dimer test by fixed cut-off and blue dots indicate additional negative D-dimer tests by age-adjusted cut-off.
In 448 (59%) patients post-hoc classified as PE-unlikely, 11 (2.5% [1.4–4.3]) and 14 (3.1% [1.9–5.2]) patients had a negative D-dimer using the two different cut-offs, respectively. Haemoptysis on admission, V/Q scan-based diagnosis, and chronic lung disease were associated with a discordant D-dimer, while an inverse association existed for concomitant DVT. In 7 (29%) PE cases with normal D-dimer, PE was verified to be subsegmental also in a post-hoc evaluation. Another seven (29%) patients were receiving anticoagulation at the time of D-dimer assessment.
Figure 1
Conclusions
Our results show that the frequency of discordance between a normal D-dimer test and the diagnosis of acute PE is low, but not negligible. One third of discordant findings were related to subsegmental PE. Physicians should be aware that the risk of obtaining a false-negative D-dimer might be higher in specific subgroups of patients.
Acknowledgement/Funding
The sponsor (University Medical Center of the Johannes Gutenberg University, Mainz) has obtained grants from Bayer Vital GmbH and Bayer Pharma AG
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Affiliation(s)
- S Barco
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - M Russo
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - F A Klok
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - S V Konstantinides
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
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Klok FA, Presles E, Tromeur C, Barco S, Konstantinides SV, Couturaud F. P2773Evaluation of the bleeding prediction score VTE-BLEED for predicting recurrent VTE. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
VTE-BLEED is a validated score for identification of patients at a 3 to 5-fold increased risk of major bleeding during extended anticoagulation for venous thromboembolism (VTE; table 1). It is unknown whether VTE-BLEED high-risk patients also have an increased risk for recurrent VTE, which would limit the potential usefulness of the score.
Methods
This was a post-hoc analysis of the randomised double-blind placebo-controlled PADIS-PE trial, in which patients with a first unprovoked pulmonary embolism (PE) initially treated for 6 months were randomised to receive an additional 18-month of warfarin versus placebo. Primary outcome of the current analysis was recurrent VTE during 2-year follow-up after anticoagulant discontinuation, i.e. after the initial 6-month treatment in the placebo arm and after 24 months of anticoagulation in the active treatment arm. This rate, adjusted on study treatment allocation, was compared between patients in the high- versus low-risk VTE-BLEED group.
Results
In complete case analysis (n=308; 82.4% of total population), 89 (28.9%) patients were classified as VTE-BLEED high risk. A total of 44 VTE events occurred after anticoagulant discontinuation during 668 patient-years. The cumulative incidence of recurrent VTE was 16.4% (95% CI 10.0–26.1%; 14 events) and 14.6% (95% CI 10.4–20.3%; 30 events) in the high-risk and low-risk VTE-BLEED groups, respectively, for an adjusted Hazard Ratio of 1.16 (95% CI 0.62–2.19; Figure 1).
Figure 1
Conclusion
In this study, patients with unprovoked PE classified at high risk of major bleeding by VTE-BLEED did not have a higher incidence of recurrent VTE after cessation of anticoagulant therapy, supporting the potential yield of the score for making management decisions on the optimal duration of anticoagulant therapy.
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Affiliation(s)
- F A Klok
- Leiden University Medical Center, Leiden, Netherlands (The)
| | - E Presles
- University Hospital of Brest, Brest, France
| | - C Tromeur
- University Hospital of Brest, Brest, France
| | - S Barco
- Center for Thrombosis and Hemostasis, Mainz, Germany
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Giustozzi M, Barco S, Valerio L, Klok FA, Vedovati MC, Becattini C, Konstantinides SV, Agnelli G. P3850Impact of sex and risk factors for venous thromboembolism on the clinical course of first acute venous thromboembolism. Insights from the PREFER in VTE. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
The interaction between sex and specific provoking risk factors for venous thromboembolism (VTE) may influence initial presentation and prognosis.
Purpose
We investigated the impact of sex on the risk of recurrence across subgroups of patients with first VTE classified according to baseline risk factors.
Methods
PREFER in VTE was an international, non-interventional registry (2013–2015) including patients with a first episode of acute symptomatic objectively diagnosed VTE. We studied the risk of recurrence in patients classified according to baseline provoking risk factors for VTE consisted of i) major transient (major surgery/trauma, >5 days in bed), ii) minor transient (pregnancy or puerperium, estroprogestinic therapy, prolonged immobilization, current infection or bone fracture/soft tissue trauma); iii) unprovoked events, iv) active cancer-associated VTE.
Results
A total of 3,455 patients diagnosed with first acute VTE were identified, of whom 1,623 (47%) were women. The percentage of patients with a major transient risk factor was 22.2% among women and 19.7% among men. Minor transient risk factors were present in 21.3% and 12.4%, unprovoked VTE in 51.6% and 61.6%, cancer-associated VTE in 4.9% of women and 6.3% of men, respectively. The proportions of cases treated with Vitamin-K antagonists (VKAs) and direct oral anticoagulants (DOACs) were similar between sexes. Median length of treatment of VKAs was 181.5 and 182.0 days and of DOACs was 113.0 and 155.0 days in women and men, respectively. At 12-months of follow-up, VTE recurrence was reported in 74 (4.8%) women and 80 (4.5%) men. Table 1 shows the sex-specific proportion of recurrences by VTE risk factor categories.
Table 1 Major Transient (n=722) Minor transient (n=573) Cancer-associated (n=195) Unprovoked (1965) Women (361) Men (361) OR (95% CI) Women (346) Men (227) OR (95% CI) Women (79) Men (116) OR (95% CI) Women (837) Men (1128) OR (95% CI) One-year follow-up, n (N%) Recurrent VTE, 21 (6.2) 10 (2.9) 0.46 (0.2; 0.9) 9 (2.7) 12 (5.4) 2.09 (0.9; 5.0) 6 (8.0) 5 (4.5) 0.54 (0.2; 1.9) 38 (4.7) 53 (4.7) 1.03 (0.7; 1.6) Major bleeding, 6 (1.8) 5 (1.5) 0.83 (0.3; 2.7) 5 (1.5) 1 (0.5) 0.30 (0.1; 2.6) 1 (1.3) 3 (2.7) 2.07 (0.2; 20) 10 (1.2) 15 (1.4) 1.11 (0.6; 2.4) All-cause death, 37 (10.2) 31 (8.5) 0.82 (0.5; 1.4) 10 (2.9) 14 (6.2) 2.21 (0.9; 5.1) 26 (32.9) 49 (42.2) 1.49 (0.8; 2.7) 33 (3.9) 30 (2.7) 0.66 (0.4; 1.1)
Conclusions
The proportion of patients with recurrent VTE events after first acute symptomatic VTE provoked by transient risk factors was not negligible during the first year of follow-up during in both women and men. These results may have implications on the decision whether to consider extended anticoagulant therapy in selected patients with provoked events.
Acknowledgement/Funding
This study was funded by Daiichi Sankyo.
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Affiliation(s)
- M Giustozzi
- Internal and Cardiovascular Medicine-Stroke Unit, Perugia, Italy
| | - S Barco
- Center for Thrombosis and Hemostasis, Mainz, Germany
| | - L Valerio
- Center for Thrombosis and Hemostasis, Mainz, Germany
| | - F A Klok
- Center for Thrombosis and Hemostasis, Mainz, Germany
| | - M C Vedovati
- Internal and Cardiovascular Medicine-Stroke Unit, Perugia, Italy
| | - C Becattini
- Internal and Cardiovascular Medicine-Stroke Unit, Perugia, Italy
| | | | - G Agnelli
- Internal and Cardiovascular Medicine-Stroke Unit, Perugia, Italy
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Barco S, Klok FA, Konstantinides SV, Dartevelle P, Fadel E, Jenkins D, Kim NH, Madani M, Matsubara M, Mayer E, Pepke-Zaba J, Simonneau G, Delcroix M, Lang IM. P2540Sex-specific differences in the clinical presentation, surgical complications, and course of chronic thromboembolic pulmonary hypertension. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Women are more susceptible to develop several forms of pulmonary hypertension, but they may have better survival rates than men. Sparse data are available concerning sex-specific differences in chronic thromboembolic pulmonary hypertension (CTEPH).
Purpose and methods
We investigated sex-specific differences in the clinical presentation of CTEPH, functional parameters, exposure to pulmonary endarterectomy (PEA), and survival.
Results
Women constituted half of the study population (N=679 treatment-naïve patients from the European CTEPH registry) and were characterized by a lower prevalence of some cardiovascular risk factors (e.g. prior acute coronary syndrome, smoking habit, chronic obstructive pulmonary disease), but more prevalent obesity, cancer, and thyroid diseases. Median age was 62 (IQR 50–73) years in women and 63 (IQR 53–70) in men. Women underwent PEA less often than men (54% vs 65%; Figure 1, Panel A) and were exposed to fewer additional cardiac procedures, notably coronary artery bypass graft surgery (0.5% vs. 9.5%). The prevalence of specific reasons for not being operated, including the patient's refusal and the proportion of proximal vs. distal lesions, did not differ between sexes. A total of 57 (17.0%) deaths in women and 70 (20.7%) in men were recorded over long-term follow-up. Female sex was positively associated with long-term survival (adjusted Hazard Ratio 0.66; 95% Confidence Interval 0.46–0.94). Short-term mortality was identical in the two groups (Figure 1, Panel B).
Conclusions
Women with CTEPH had a lower prevalence of cardiovascular risk factors and underwent PEA less frequently than men, who, in turn, were more often exposed to additional major cardiac surgery procedures. Women had more favorable long-term survival.
Acknowledgement/Funding
The CTEPH registry is supported by a research grant from Actelion Pharmaceuticals Ltd.
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Affiliation(s)
- S Barco
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - F A Klok
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - S V Konstantinides
- University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - P Dartevelle
- Hôpital Marie-Lannelongue, Paris-Sud Univ, Department of Thoracic and Vascular Surgery and Heart-Lung Transplantation, Paris, France
| | - E Fadel
- Univ. Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, Paris, France
| | - D Jenkins
- Papworth Hospital NHS Trust, Department of Cardiothoracic Surgery, Cambridge, United Kingdom
| | - N H Kim
- University of San Diego, Division of Pulmonary and Critical Care Medicine, La Jolla, United States of America
| | - M Madani
- University of San Diego, Division of Cardiovascular and Thoracic Surgery, La Jolla, United States of America
| | - M Matsubara
- Okayama Medical Center, Department of Clinical Science, Okayama, Japan
| | - E Mayer
- Kerckhoff Heart and Thorax Center, Bad Nauheim, Germany
| | - J Pepke-Zaba
- Papworth Hospital NHS Trust, Pulmonary Vascular Disease Unit, Cambridge, United Kingdom
| | - G Simonneau
- Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Le Kremlin-Bicetre, France
| | - M Delcroix
- University Hospitals (UZ) Leuven, Department of Pneumology, Leuven, Belgium
| | - I M Lang
- Medical University of Vienna, Department of Internal Medicine II, Division of Cardiology, Vienna, Austria
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Klok FA, Huisman MV. [Andexanet alfa: the best antidote for factor Xa inhibitors?]. Ned Tijdschr Geneeskd 2019; 163:D3894. [PMID: 31283119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Andexanet alfa (andexanet) was specifically developed to reverse factor Xa inhibitors. Its effect on patients who are experiencing major bleeding while being treated with an oral Xa inhibitor or low molecular weight heparin was studied in the ANNEXA 4 study. The main outcome of this study was that anti-factor Xa activity decreased during the 2-hour infusion with andexanet, and that 82% of patients had excellent or good haemostatic efficacy after 12 hours according to pre-specified criteria. Although andexanet is the only specific antidote for factor Xa inhibitors available, an alternative treatment may be high-dose prothrombin concentrate (PCC). With the recent approval by the European Medicines Agency (EMA) but unknown Dutch reimbursement status, the role of andexanet for daily clinical practice in the Netherlands remains to be determined. Notably, and importantly, when treating patients with anticoagulant-associated major bleeding, local haemostatic control and-if relevant-adequate fluid resuscitation are at least as important as choosing the optimal anticoagulation antidote.
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Affiliation(s)
- F A Klok
- Leids Universitair Medisch Centrum, afd. Interne Geneeskunde - Trombose en Hemostase, Leiden
- Contact: F.A. Klok
| | - Menno V Huisman
- Leids Universitair Medisch Centrum, afd. Interne Geneeskunde - Trombose en Hemostase, Leiden
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Hanna-Sawires RG, Groen JV, Klok FA, Tollenaar RAEM, Mesker WE, Swijnenburg RJ, Vahrmeijer AL, Bonsing BA, Mieog JSD. Outcomes following pancreatic surgery using three different thromboprophylaxis regimens. Br J Surg 2019; 106:765-773. [PMID: 30776085 PMCID: PMC6593975 DOI: 10.1002/bjs.11103] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/17/2018] [Accepted: 12/06/2018] [Indexed: 01/03/2023]
Abstract
BACKGROUND Postpancreatectomy haemorrhage (PPH) and venous thromboembolism (VTE) are serious complications following pancreatic surgery. The aim was to assess the timing, occurrence and predictors of PPH and VTE. METHODS Elective pancreatic resections undertaken in a single university hospital between November 2013 and September 2017 were assessed. Three intervals were reviewed, each with a different routine regimen of nadroparin: 2850 units once daily (single dose) administered in hospital only, or 5700 units once daily (double dose) or 2850 units twice daily (split dose) administered in hospital and continued for 6 weeks after surgery. Clinically relevant PPH (CR-PPH) was classified according to International Study Group of Pancreatic Surgery criteria. VTE was defined according to a number of key diagnostic criteria within 6 weeks of surgery. Cox regression analyses were performed to test the hypotheses that the double-dose group would experience more PPH than the other two groups, the single-dose group would experience more VTE than the other two groups, and the split-dose group would experience the fewest adverse events (PPH or VTE). RESULTS In total, 240 patients were included, 80 per group. The double-dose group experienced significantly more CR-PPH (hazard ratio (HR) 2·14, 95 per cent c.i. 1·16 to 3·94; P = 0·015). More relaparotomies due to CR-PPH were performed in the double-dose group (16 versus 3·8 per cent; P = 0·002). The single-dose group did not experience more VTE (HR 1·41, 0·43 to 4·62; P = 0·570). The split dose was not associated with fewer adverse events (HR 0·77, 0·41 to 1·46; P = 0·422). Double-dose low molecular weight heparin (LMWH), high BMI and pancreatic fistula were independent predictors of CR-PPH. CONCLUSION A double dose of LMWH prophylaxis continued for 6 weeks after pancreatic resection was associated with a twofold higher rate of CR-PPH, resulting in four times more relaparotomies. Patients receiving a single daily dose of LMWH in hospital only did not experience a higher rate of VTE.
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Affiliation(s)
- R G Hanna-Sawires
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - J V Groen
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - F A Klok
- Department of Thrombosis and Haemostasis, Leiden University Medical Centre, Leiden, the Netherlands
| | - R A E M Tollenaar
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - W E Mesker
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - R J Swijnenburg
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - A L Vahrmeijer
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - B A Bonsing
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
| | - J S D Mieog
- Department of Surgery, Leiden University Medical Centre, Leiden, the Netherlands
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Akaberi A, Klok FA, Cohn DM, Hirsch A, Granton J, Kahn SR. Determining the minimal clinically important difference for the PEmbQoL questionnaire, a measure of pulmonary embolism-specific quality of life. J Thromb Haemost 2018; 16:2454-2461. [PMID: 30240543 DOI: 10.1111/jth.14302] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Indexed: 11/30/2022]
Abstract
Essentials The minimal clinically important difference (MCID) for PEmbQoL has not yet been determined. We estimated the MCID for PEmbQoL and its subscales via anchor- and distribution-based approaches. Our results indicate that MCID for PEmbQoL appears to be 15 points. Our work enables interpretation of changes or differences in PEmbQoL. SUMMARY: Background Pulmonary embolism (PE) reduces quality of life (QOL). The PEmbQoL questionnaire, a PE-related QOL measure, was recently developed and validated and has been used to quantify disease-specific QOL in clinical studies of patients with PE. However, to date, interpretation of PEmbQoL scores has been limited by a lack of information on the minimal clinically important difference (MCID) of this measure. Objective To determine the MCID for PEmbQoL and its subscales using anchor-based and distribution-based approaches. Methods We analyzed data from the ELOPE Study, a prospective, multicenter cohort study of long-term outcomes after a first episode of acute PE. At baseline and 1, 3, 6 and 12 months after PE, we measured generic QOL (SF-36), PE-specific QOL (PEmbQoL) and dyspnea severity (UCSD Shortness of Breath Questionnaire). We used time-varying repeated-measures mixed-effect models to estimate anchor-based MCID and effect sizes to estimate distribution-based MCID. Results Eighty-two patients participated in this sub-study. Their mean age was 49.4 years, 60% were male and 84% had PE diagnosed in an outpatient setting. Using both anchor- and distribution-based approaches, the MCID for PEmbQoL appears to be 15 points. Based on this MCID, 42%, 59%, 66% and 75% of patients experienced at least one MCID unit of improvement in PEmbQoL from baseline to 1, 3, 6 and 12 months, respectively. Conclusion Our results provide new information on the MCID of PEmbQoL, a PE-specific QOL questionnaire that can be used by researchers and clinicians to measure and interpret changes in PE-specific QOL over time, or as an outcome in clinical trials.
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Affiliation(s)
- A Akaberi
- Center for Clinical Epidemiology, Lady Davis Institute, Montreal, QC, Canada
| | - F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - D M Cohn
- Department of Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - A Hirsch
- Department of Medicine, Jewish General Hospital, Montreal, QC, Canada
| | - J Granton
- Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - S R Kahn
- Center for Clinical Epidemiology, Lady Davis Institute, Montreal, QC, Canada
- Department of Medicine, Jewish General Hospital, Montreal, QC, Canada
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Fronas SG, Wik HS, Dahm AEA, Jørgensen CT, Gleditsch J, Raouf N, Klok FA, Ghanima W. Safety of D-dimer testing as a stand-alone test for the exclusion of deep vein thrombosis as compared with other strategies. J Thromb Haemost 2018; 16:2471-2481. [PMID: 30303610 DOI: 10.1111/jth.14314] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Indexed: 12/01/2022]
Abstract
Essentials The aim of deep vein thrombosis (DVT) diagnostic work-up is to maximize both safety and efficiency. We explored whether D-dimer is safe and efficient as a stand-alone test to exclude DVT. Our findings suggest it is a safe, efficient and simplified diagnostic strategy. The safety of age-adjusted D-dimer as a stand-alone test requires further investigation. SUMMARY: Background Several strategies for safely excluding deep vein thrombosis (DVT) while limiting the number of imaging tests have been explored. Objectives To determine whether D-dimer testing could safely and efficiently exclude DVT as a stand-alone test, and evaluate its performance as compared with strategies that incorporate the Wells score and age-adjusted D-dimer. Patients/Methods We included consecutive outpatients referred with suspected DVT to the Emergency Department at Østfold Hospital, Norway. STA-Liatest D-Di PLUS D-dimer was analyzed for all patients. Patients with a D-dimer level of ≥ 0.5 μg mL-1 were referred for compression ultrasonography (CUS). In patients with a D-dimer level of < 0.5 μg mL-1 , no further testing was performed and anticoagulation was withheld. Patients were followed for 3 months for venous thromboembolism (VTE). Results Of the 913 included patients, 298 (33%) had a negative D-dimer result. One hundred and seventy-three patients (18.9%) were diagnosed with DVT at baseline. One of 298 patients had DVT despite having a negative D-dimer result, resulting in a failure rate of 0.3% (95% confidence interval [CI] 0.1-1.9%). Adding the modified Wells score would have yielded a failure rate of 0.0% (95% CI 0.0-1.8%) while necessitating 87 more CUS examinations. Age-adjusted D-dimer as a stand-alone test would have necessitated 80 fewer CUS examinations than fixed D-dimer as a stand-alone test, at the cost of a failure rate of 1.6% (95% CI 0.7-3.4%). Conclusions This outcome study shows that a negative high-sensitivity D-dimer result safely excludes DVT in an outpatient population, and necessitates fewer CUS than if used in combination with Wells score. The safety of stand-alone age-adjusted D-dimer needs further assessment in prospective outcome studies.
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Affiliation(s)
- S G Fronas
- Department of Internal Medicine, Østfold Hospital Trust, Grålum, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - H S Wik
- Department of Hematology, Oslo University Hospital, Oslo, Norway
| | - A E A Dahm
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Hematology, Akershus University Hospital, Lørenskog, Norway
| | - C T Jørgensen
- Department of Internal Medicine, Østfold Hospital Trust, Grålum, Norway
| | - J Gleditsch
- Department of Radiology, Østfold Hospital Trust, Grålum, Norway
| | - N Raouf
- Department of Internal Medicine, Østfold Hospital Trust, Grålum, Norway
| | - F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - W Ghanima
- Department of Internal Medicine, Østfold Hospital Trust, Grålum, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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Ende-Verhaar YM, van den Hout WB, Bogaard HJ, Meijboom LJ, Huisman MV, Symersky P, Vonk-Noordegraaf A, Klok FA. Healthcare utilization in chronic thromboembolic pulmonary hypertension after acute pulmonary embolism. J Thromb Haemost 2018; 16:2168-2174. [PMID: 30099844 DOI: 10.1111/jth.14266] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Indexed: 11/29/2022]
Abstract
Essentials Diagnostic delay of chronic thromboembolic pulmonary hypertension (CTEPH) is long. We explored healthcare utilisation of patients diagnosed with CTEPH after pulmonary embolism. A large number of physicians were consulted and test results were not always interpreted correctly. Better education and higher awareness of CTEPH may lead to faster diagnosis. SUMMARY: Background The median diagnostic delay of chronic thromboembolic pulmonary hypertension (CTEPH) is 14 months, which may affect prognosis. We aimed to explore the healthcare utilization of patients diagnosed with CTEPH after acute pulmonary embolism (PE), and to identify the causes of diagnostic delay. Methods We collected all data on patient symptoms, medical specialist referrals and ordered diagnostic tests to reconstruct the clinical pathways of 40 patients referred to the VU University Medical Center Amsterdam (VUMC, the Netherlands) for CTEPH treatment. Diagnostic delay was defined as the time between first symptom onset and referral to the VUMC. Correlations of patient-specific characteristics and diagnostic delay were evaluated. Results Patients consulted four (median) different physicians for a median of 13 (interquartile range [IQR] 10-18) consultations before the correct diagnosis was made. The median diagnostic delay was 21 months (IQR 12-49 months). Echocardiographic results suggestive of CTEPH were not always followed by an adequate work-up; most patients were not subjected to ventilation/perfusion scanning. Prior cardiopulmonary comorbidity and recurrent venous thromboembolism were predictors of a longer delay. Conclusion Healthcare utilization in patients before their final CTEPH diagnosis was far from optimal, contributing to a considerable diagnostic delay. Better education and higher awareness of CTEPH among PE caretakers may lead to faster diagnosis.
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Affiliation(s)
- Y M Ende-Verhaar
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - W B van den Hout
- Department of Medical statistics and Bio-informatics, Leiden University Medical Center, Leiden, the Netherlands
| | - H J Bogaard
- Department of Pulmonology, VU University Medical Center, Amsterdam, the Netherlands
| | - L J Meijboom
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, the Netherlands
| | - M V Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - P Symersky
- Department of Cardiac Surgery, VU University Medical Center, Amsterdam, the Netherlands
| | - A Vonk-Noordegraaf
- Department of Pulmonology, VU University Medical Center, Amsterdam, the Netherlands
| | - F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
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Huisman MV, Ferreira M, Feuring M, Fraessdorf M, Klok FA. Less abnormal uterine bleeding with dabigatran than warfarin in women treated for acute venous thromboembolism. J Thromb Haemost 2018; 16:1775-1778. [PMID: 29974611 DOI: 10.1111/jth.14226] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Indexed: 12/13/2022]
Abstract
Essentials Factor Xa inhibitors cause more abnormal menstrual bleeding (AUB) than vitamin-K antagonists (VKA). We analyzed data of AUB in women, evaluating dabigatran versus VKA. We observed a 41% lower risk of AUB in women on dabigatran compared to those on VKA. Our findings of lower AUB risk on dabigatran should be corroborated in future studies. SUMMARY Introduction Although direct oral anticoagulants (DOACs) are associated with a better safety profile than warfarin in patients with acute venous thromboembolism (VTE), direct factor Xa inhibitors involve a higher risk of abnormal uterine bleeding (AUB). We aimed to determine the risk of AUB during anticoagulation with dabigatran compared with warfarin. Methods Post-hoc analysis of the pooled RE-COVER studies and the RE-MEDY trial. Incidences of AUB, based on a defined preferred terms search for adverse events, in female patients aged 18-50 years treated with dabigatran, were compared with those in women treated with warfarin. Results Of the 2964 women included in the above-mentioned trials, 1280 women were in the relevant age category (18-50 years) and included in the current analysis. A total of 643 patients were randomized to treatment with dabigatran and 637 to treatment with warfarin. The overall rate of AUB was 8.1%, 5.9% for the women treated with dabigatran and 9.6% in those treated with warfarin, for an odds ratio for dabigatran-treated patients of 0.59 (95% confidence interval [CI], 0.39-0.90; P = 0.015). In the dabigatran-treated patients, three (0.5%) suffered major bleeding (MB) vs. five (0.8%) in the warfarin-treated patients (HR, 0.65; 95% CI, 0.15-2.72). MB or non-major relevant bleeding occurred in 30 (4.7%) patients randomized to receive dabigatran and 57 (8.9%) randomized to receive warfarin (HR, 0.53; 95% CI, 0.34-0.83). None of the bleeding events was fatal. Conclusion Dabigatran treatment was associated with a significantly (41%) lower risk of AUB than warfarin. Future studies in daily practice are needed to corroborate these findings.
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Affiliation(s)
- M V Huisman
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
| | - M Ferreira
- Department of Internal Medicine, Hospital Garcia de Orta, Almada, Portugal
| | - M Feuring
- Boehringer Ingelheim GmbH & Co KG, Ingelheim am Rhein, Germany
| | - M Fraessdorf
- Boehringer Ingelheim GmbH & Co KG, Ingelheim am Rhein, Germany
| | - F A Klok
- Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands
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Van Der Wall SJ, Van Rein N, Van Den Bemt B, Kruip MJHA, Meijer K, Te Boome LCJ, Simmers TA, Alings M, Tieleman R, Klok FA, Huisman MV. P2906Evaluation of appropriate use and clinical outcomes of idarucizumab as antidote of dabigatran in daily clinical practice. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - N Van Rein
- Leiden University Medical Center, Leiden, Netherlands
| | - B Van Den Bemt
- Radboud University Medical Centre, Nijmegen, Netherlands
| | | | - K Meijer
- University Medical Center Groningen, Groningen, Netherlands
| | - L C J Te Boome
- Medisch Centrum Haaglanden Westeinde, Den Haag, Netherlands
| | | | - M Alings
- Amphia Hospital, Breda, Netherlands
| | - R Tieleman
- Martini Hospital, Groningen, Netherlands
| | - F A Klok
- Leiden University Medical Center, Leiden, Netherlands
| | - M V Huisman
- Leiden University Medical Center, Leiden, Netherlands
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Klok FA, Meijboom LJ, Kroft LJM, Beenen LFM, Boon GJAM, Middeldorp S, Huisman MV, Bogaard HJ, Vonk Noordegraaf A, Ende-Verhaar YM. P1625Identification of chronic thromboembolic pulmonary hypertension on standard computed tomography pulmonary angiography for suspected acute pulmonary embolism. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- F A Klok
- Leiden University Medical Center, Leiden, Netherlands
| | - L J Meijboom
- VU University Medical Center, Amsterdam, Netherlands
| | - L J M Kroft
- Leiden University Medical Center, Leiden, Netherlands
| | - L F M Beenen
- Academic Medical Center of Amsterdam, Amsterdam, Netherlands
| | - G J A M Boon
- Leiden University Medical Center, Leiden, Netherlands
| | - S Middeldorp
- Academic Medical Center of Amsterdam, Amsterdam, Netherlands
| | - M V Huisman
- Leiden University Medical Center, Leiden, Netherlands
| | - H J Bogaard
- VU University Medical Center, Amsterdam, Netherlands
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Klok FA, Barco S, Konstantinides SV, Delcroix M, Lang IM. P2612Determinants of diagnostic delay in chronic thromboembolic pulmonary hypertension: results from the international prospective cteph registry. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- F A Klok
- Leiden University Medical Center, Leiden, Netherlands
| | - S Barco
- Center for Thrombosis and Hemostasis, Mainz, Germany
| | | | - M Delcroix
- University Hospitals (UZ) Leuven, Leuven, Belgium
| | - I M Lang
- Medical University of Vienna, Vienna, Austria
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Klok FA, Barco S, Turpie AGG, Haas S, Kreutz R, Mantovani LG, Gebel M, Monje D, Brugge JB, Bach M, Konstantinides SV, Ageno W. 4320Predictive value of VTE-BLEED to predict major bleeding and other adverse events in a practice-based cohort of patients with venous thromboembolism: results of the XALIA study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.4320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- F A Klok
- Leiden University Medical Center, Leiden, Netherlands
| | - S Barco
- Center for Thrombosis and Hemostasis, Mainz, Germany
| | - A G G Turpie
- McMaster University, Department of Medicine, Hamilton, Canada
| | - S Haas
- Formerly Technical University of Munich, Department of Medicine, Munich, Germany
| | - R Kreutz
- Charité - Universitätsmedizin Berlin, Berlin, Germany
| | | | - M Gebel
- Bayer AG, Wuppertal, Germany
| | - D Monje
- Bayer Vital GmbH, Leverkusen, Germany
| | | | - M Bach
- Darmstadt Clinic, Darmstadt, Germany
| | | | - W Ageno
- University of Insubria, Varese, Italy
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