Abstract:
BACKGROUND: Evaluation of thromboembolic risk is essential in anticoagulated atrial fibrillation (AF) patients. The CHA2DS2-VASc score is largely validated and recommended by most guidelines. The GARFIELD-AF Stroke score has been proposed as an alternative risk score. METHODS: We analyzed warfarin-treated patients from SPORTIF III and V studies. Any thromboembolic event (TE) was an adjudicated study outcome. We compared the two scores' capacity in predicting any TE occurrence. RESULTS: A total of 3,665 patients (median [interquartile range] age: 72 [66-77] years; 30.5% female) were included in this analysis. After a mean (standard deviation) follow-up of 566.3 (142.5) days, 148 (4.03%) TEs were recorded. Both continuous CHA2DS2-VASc and GARFIELD-AF were associated with TE (hazard ratio [HR]: 1.37, 95% confidence interval [CI]: 1.22-1.53 and HR: 2.43, 95% CI: 1.72-3.42), with modest predictive ability (c-indexes: 0.63, 95% CI: 0.59-0.68 and 0.61, 95% CI: 0.56-0.66, respectively), with no differences. CHA2DS2-VASc quartiles showed an increasing cumulative risk, while in GARFIELD-AF only the highest quartile (Q4) demonstrated an increased TE risk. On multivariate Cox regression analysis, CHA2DS2-VASc quartiles were associated with increasing risk of TE, whereas for GARFIELD-AF only Q4 showed an association with TE. Discrimination analysis showed that GARFIELD-AF quartiles were associated with a 48.7% reduction in discriminatory ability. Using decision curve analysis, CHA2DS2-VASc was associated with improved clinical usefulness and net clinical benefit, compared with GARFIELD-AF. CONCLUSION: In a warfarin-treated trial cohort of AF patients, both CHA2DS2-VASc and GARFIELD-AF Stroke scores were associated with adjudicated TE events, with modest predictive capacity. The simpler CHA2DS2-VASc score improved discriminatory capacity compared with the more complex GARFIELD-AF score, demonstrating improved clinical usefulness and net clinical benefit.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Proietti M,Rivera-Caravaca JM,Esteve-Pastor MA,Marín F,Lip GYHdoi
10.1055/a-1333-4448subject
Has Abstractpub_date
2020-12-09 00:00:00eissn
0340-6245issn
2567-689Xpub_type
杂志文章abstract::Increased procoagulant activity in the alveolar compartment and uncontrolled inflammation are hallmarks of the acute respiratory distress syndrome (ARDS). Here, we investigated whether the contact phase system of coagulation is activated and may regulate inflammatory responses in human lungs. Components of the contact...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH16-12-0904
更新日期:2017-10-05 00:00:00
abstract::Thirty-one non-hemophilic patients with acquired antibodies to factor VIII were entered into a prospective, randomized, multi-institutional trial to determine the safety and efficacy of prednisone (P), cyclophosphamide (C), or the combination in the treatment of this disorder. Patients were eligible if they had antibo...
journal_title:Thrombosis and haemostasis
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:
更新日期:1993-11-15 00:00:00
abstract::The release of microvesicles ('platelet microparticles', PMPs) by activated platelets has been shown to be an integral part of the thrombotic process. PMPs are believed to mediate many biological processes as they possess various platelet membrane proteins and bioactive lipids. Of note, there is a growing body of evid...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1160/TH05-03-0201
更新日期:2005-09-01 00:00:00
abstract::Antithrombin (AT) activity tests are used for diagnosing hereditary AT deficiency, a main genetic determinant of thrombophilia. They are either based on inhibition of thrombin (FIIa) or activated factor X (FXa). FXa-based assays have been suggested to be preferable to FIIa-based assays due to their higher sensitivity ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH17-08-0568
更新日期:2018-02-01 00:00:00
abstract::AZD0837 is an investigational oral anticoagulant which is converted to the active form, AR-H067637, a selective direct thrombin inhibitor. The present study, a multicentre, randomised, parallel-group, dose-guiding study, assessed the safety and tolerability of an immediate-release formulation of AZD0837 compared with ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1160/TH09-07-0509
更新日期:2010-03-01 00:00:00
abstract::Staphylokinase (SAK) expresses plasminogen activator (PA) activity by forming a complex with plasmin. The interaction between the plasmin-SAK complex and plasminogen was investigated using synthesized peptides, which were constructed according to the amino acid sequence of the SAK molecule. A synthetic nonadecapeptide...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2007-05-01 00:00:00
abstract::The activation of factor XI by meizothrombin was investigated using recombinant meizothrombin (R155A meizothrombin) that is resistant to autocatalytic removal of fragment 1. Meizothrombin was capable of activating factor XI at an activation rate similar to that of thrombin. Dextran sulphate and heparin, known cofactor...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1997-08-01 00:00:00
abstract::Thromboembolic complications have been attributed to the use of radiographic contrast media (CM) during interventional procedures for arterial revascularization. However, due to the low frequency of adverse events, comparisons between different CM have been difficult to perform, although it has been suggested that ion...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2001-03-01 00:00:00
abstract::In a prospective study, coagulation test results were compared in 137 patients with colorectal cancer (CRC) and 39 subjects with benign colorectal diseases. Prothrombin fragment 1+2 (F1+2), thrombin-antithrombin complex (TAT), and soluble fibrin (SF) were measured in plasma before and after surgery. CRC patients prese...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2002-03-01 00:00:00
abstract::Fucoïdans catalyse thrombin inhibition by antithrombin (AT) and heparin cofactor II (HCII); their affinity for each serpin varies according to the seaweed species from which they are extracted, as well as their chemical composition and molecular weight. We extracted a homogeneous fucoïdan fraction from Ascophyllum nod...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract::The mechanism of thrombin induction of tissue- and urokinase-type plasminogen activator (t-PA and u-PA) biosynthesis was investigated in cultured human fetal lung fibroblast cells, IMR-90. Northern blot analysis of total RNA from thrombin-treated cells showed marked accumulations of both t-PA and u-PA mRNA during 24 h...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-08-01 00:00:00
abstract::Blood platelets have long been recognised to bring about primary haemostasis with deficiencies in platelet production and function manifesting in bleeding while upregulated function favourises arterial thrombosis. Yet increasing evidence indicates that platelets fulfil a much wider role in health and disease. First, t...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1160/THS10-11-0720
更新日期:2011-05-01 00:00:00
abstract::A new immunoadsorbent-amidolytic assay (IAA) for the specific differential detection of two-chain urokinase-type plasminogen activator (tcu-PA) and its single-chain precursor (scu-PA) in cell culture supernatants has been developed. The assay combines the selectivity of immunoassays with the specificity of enzyme acti...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1986-12-15 00:00:00
abstract::Sepsis triggers a complex series of pathophysiologic events involving inflammatory responses and coagulation abnormalities. While circulating blood platelets are well-characterized for their contributions to coagulation, increasingly platelet-dependent effects on inflammation are being recognized. Here, we focus on th...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1055/s-0038-1676794
更新日期:2019-03-01 00:00:00
abstract::Venous thromboembolism (VTE) is a central concern in the intensive care unit (ICU). However, little is known about both current practices for VTE prevention in the ICU and the risk for VTE in persons with severe sepsis and septic shock. XPRESS was a randomized, double-blind, placebo-controlled trial of prophylactic he...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2009-01-01 00:00:00
abstract::Microvascular endothelial damage underlies the pathological changes in haemorrhagic colitis and the haemolytic uraemic syndrome (HUS) caused by enterohaemorrhagic Escherichia coli (EHEC). Shiga toxins (Stxs) are presently the best characterised EHEC virulence factors that can cause the microvascular endothelium injury...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1160/TH05-04-0265
更新日期:2005-08-01 00:00:00
abstract::Knowledge on the natural history of mesenteric vein thrombosis (MVT) and of the efficacy and safety of long-term oral anticoagulant therapy (OAT) in this setting is based on small uncontrolled series of patients with a limited follow-up. It was the aim of the study to assess the natural history of MVT in a cohort of p...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,多中心研究
doi:10.1160/TH08-12-0842
更新日期:2009-09-01 00:00:00
abstract::In the last decade, several studies revealed inter-patient response variability to antiplatelet agents: patients who display negligible or no responses to these drugs are considered poor responders, or "resistant" to treatment. In order to identify poor responders to an antiplatelet drug, laboratory tests of platelet ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1160/TH12-10-0758
更新日期:2013-05-01 00:00:00
abstract:BACKGROUND: Cardiac-enriched micro ribonucleic acids (miRNAs) are released into the circulation following ST-elevation myocardial infarction (STEMI). Lack of standardized approaches for reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR) data normalization and presence of RT-qPCR inhibitors...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1055/s-0038-1660437
更新日期:2018-07-01 00:00:00
abstract::It is now recognised that acute myocardial infarction results from the rupture of atherosclerotic plaques. Lymphocytes and macrophages, which infiltrate rupture sites, contribute to plaque degradation by expressing urokinase (u-PA) bound to cell membrane by urokinase receptor (u-PAR) and by secreting metalloproteinase...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2000-10-01 00:00:00
abstract::Filtration through asbestos filter (Seitz) of human plasma modified the prothrombin molecule as previously shown. Factor II could no longer be activated by physiological activators (Ca++ + phospholipid + V and Xa) but reacted readily with staphylocoagulase. The separation and purification of the modified prothrombin a...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1979-02-15 00:00:00
abstract:BACKGROUND:Infusions of apolipoprotein A-I (apoA-I), the major protein component of high-density lipoproteins (HDL), result in aortic valve stenosis (AVS) regression in experimental models. Severe AVS can be complicated by acquired von Willebrand syndrome, a haemorrhagic disorder associated with loss of high-molecular-...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH17-10-0729
更新日期:2018-02-01 00:00:00
abstract::Haemophilia A and B are X-linked disorders which are due to a reduced activity of coagulation factor VIII or IX, respectively. Female carriers have a wide range of plasma concentration of factor VIII or factor IX, and may in rare cases have an affected phenotype. In order to investigate if this variation is related to...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2000-03-01 00:00:00
abstract::We have identified a patient with a dysfunctional prothrombin that we have designated Prothrombin Frankfurt. The proband was characterized by a prothrombin activity level of 13% and 20% compared to normal controls using two different assays with a normal prothrombin antigen level of 91% of normal controls. The genetic...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-02-01 00:00:00
abstract::This study examines the relationship between plasma Plasminogen Activator Inhibitor-1 (PAI-1) activity and the PAI-1 4G/5G polymorphism, and their association with the risk of myocardial infarction (MI). Furthermore, this study explores whether a high level of PAI-1 or whether the PAI-1 4G/5G polymorphism synergistica...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2003-06-01 00:00:00
abstract::Data on anti-platelet therapy (APT) for prevention of atherothrombotic events in thrombocytopaenic cancer patients is lacking. We aimed to identify patient and physician characteristics associated with APT management in thrombocytopaenic patients with haematological malignancy. A clinical vignette-based experiment was...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1055/s-0038-1676520
更新日期:2019-01-01 00:00:00
abstract::The thrombin time of normal citrated plasma is progressively prolonged on incubation in open glass tubes at 37 degrees C. The phenomenon is dependent on the temperature and duration of incubation, on the pH, and on the concentration of calcium ions present. Platelet-rich citrated plasma fails to exhibit augmented anti...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1977-02-28 00:00:00
abstract::Platelet-rich plasma was obtained 24 hr after the race ended from athletes who ran in the London marathon. The platelets were only marginally less sensitive to adrenaline than were those of non-runners using conventional aggregation tests. However, the runners' platelets were much more sensitive to inhibition by prost...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1984-07-29 00:00:00
abstract::The spleen is a crucial organ in humans. However, little is known about the association of venous thromboembolism (VTE) with splenic injury and splenectomy in trauma patients. The aim of this study was to determine the subsequent risk of VTE following splenic injury and splenectomy. A nationwide retrospective cohort s...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH15-05-0381
更新日期:2016-01-01 00:00:00
abstract::Forty-two patients with total occlusion of a coronary vessel were treated with intracoronary fibrinolytic agents. Four therapeutic protocols were compared: group I received streptokinase (SK) as a continuous infusion; group II and III received SK as a bolus at different doses and group IV received lysplasminogen (Pg) ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1983-12-30 00:00:00