Abstract:
BACKGROUND:Pulmonary embolism (PE) is diagnosed with imaging techniques such as ventilation/perfusion (V/P) lung scintigraphy or multidetector computed tomography of the pulmonary arteries (MDCT). Lung scintigraphy can be performed with planar (V/P PLANAR) and tomographic (V/P SPECT) techniques. V/P SPECT has higher sensitivity and specificity than V/P PLANAR. As nephrotoxic contrast media are not used during V/P SPECT, examinations can be repeated for evaluation of resolution of perfusion defects after PE. However, the value of residual perfusion defects identified using V/P SPECT for the prediction of recurrent PE has not been thoroughly evaluated. MATERIAL AND METHODS:We evaluated resolution and recurrence of PE in 227 patients (mean age 63 ± 17 years, 134[59%] women) with PE undergoing ≥ 2 SPECT examinations in 2005-2007. PE was defined as minor (<20% perfusion defect on SPECT, n=86), medium (20-50% perfusion defect on SPECT, n=99), or major (>50% perfusion defect on SPECT, n=42). RESULTS:At second V/P SPECT examination, complete resolution of perfusion defects had occurred in 45 (52%) patients with minor PE after 8.2 ± 7.4 months, in 29 (29%) of patients with medium PE after 6.2 ± 5.9 months, and in 2(5%) of patients with major PE after 6.5 ± 0.7 months. During 47 ± 24 months of follow up, 37(16 %) patients suffered recurrent PE. Of these 37, 34 (92%) showed residual perfusion defects at the second V/P SPECT examination. Recurrence of PE was also predicted by advanced age and female gender. However, in multivariate regression analysis, recurrence was only predicted by age (p=0.0013) and residual perfusion defect on V/P SPECT (p=0.0039). CONCLUSION:In conclusion, complete resolution of PE was common in patients with minor PE, whereas residual perfusion defects were widespread in patients with medium and major PE. PE patients identified with persistent perfusion defects at follow-up SPECT have a high risk of PE recurrence.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Alhadad A,Miniati M,Alhadad H,Gottsäter A,Bajc Mdoi
10.1016/j.thromres.2012.09.002subject
Has Abstractpub_date
2012-12-01 00:00:00pages
877-81issue
6eissn
0049-3848issn
1879-2472pii
S0049-3848(12)00693-7journal_volume
130pub_type
杂志文章abstract:BACKGROUND:Intravenous fluids can impair coagulation and affect the endothelial glycocalyx, whereas glycocalyx shedding itself can cause an impairment of clot formation and firmness. We hypothesized that hydroxyethyl starch 6% (130/0.4) has a more distinct effect on coagulation and glycocalyx shedding than albumin 5%. ...
journal_title:Thrombosis research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.thromres.2019.10.020
更新日期:2019-11-01 00:00:00
abstract::Mild hyperhomocysteinemia is recognized as a risk factor for venous thromboembolism (VTE), though its role in the thrombogenic processes is not understood. Its possible association with impaired fibrinolysis was investigated in 157 patients (61 women, 96 men) below the age of 60 years (43+/-11, mean+/-SD) with a histo...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(00)00324-8
更新日期:2000-11-15 00:00:00
abstract:INTRODUCTION:The first aim of this study is to evaluate the biological effect of doubling the maintenance dose of clopidogrel in pre-defined clopidogrel "low responders", compared to the biological effect of the standard dose in "responders". The second aim is to test the influence of the CYP 2C19*2 allele on clopidogr...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2007.06.012
更新日期:2008-01-01 00:00:00
abstract::The behavior of hemostatic system activation during protracted physical exercise is well known, but the duration of its modification is not yet defined. In order to evaluate the time of hemostatic system activation after prolonged strenuous endurance physical exercise (typical marathon race: 42.195 km, v=15.35 km/h; m...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(97)00293-4
更新日期:1998-01-15 00:00:00
abstract:BACKGROUND:Unfractionated heparin (UFH) and low molecular weight heparin constitute fundamental anticoagulants during hemodialysis (HD). We aimed to investigate the effect of UFH and enoxaparin on plasma levels of prothrombin fragment 1+2 (PF 1+2) and thrombin/antithrombin complex (TAT) as markers of intravascular thro...
journal_title:Thrombosis research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.thromres.2007.12.014
更新日期:2009-02-01 00:00:00
abstract::von Willebrand Factor (vWF) is released from endothelial cells. Increased vWF in the coronary circulation during cardiac surgery could be a potential indicator of coronary endothelial injury or stimulation, and thus a possible tool to evaluate regimens of myocardial protection. Release of vWF was investigated in 12 pa...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(94)90050-7
更新日期:1994-01-01 00:00:00
abstract::A synthetic pentasaccharide, representing the critical sequence required in heparin for binding to antithrombin III (AT III), produces strong anti-factor Xa activity in vitro in the presence of AT III and is devoid of any activity directed towards thrombin. This pentasaccharide provides a unique tool to study the ques...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(87)90280-5
更新日期:1987-04-15 00:00:00
abstract::The fibrinogen molecule consists of two sets of Aalpha, Bbeta, and gamma chains assembled into a bilateral disulfide linked (Aalpha, Bbeta, gamma)2 structure. Cleavage of the two A-fibrinopeptides (FPA, Aalpha1-16) from normal Aalpha chains with arginine at position 16 (RFPA) by thrombin or the venom enzyme atroxin tr...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/s0049-3848(00)00383-2
更新日期:2001-01-15 00:00:00
abstract:BACKGROUND:Histamine is classified as an inflammatory mediator and has been reported to have anti- as well as pro-inflammatory properties. The aim of this study was to explore the role of histamine on the production of LPS-induced tissue factor (TF) activity and TNFα in monocytes of whole blood in the absence and prese...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2013.12.022
更新日期:2014-03-01 00:00:00
abstract::Surviving an embolism exposes patients to potential long-term complications, such as altered quality of life, persistent dyspnea, impaired exercise capacity or pulmonary hypertension. The common objective factor in most of these situations is the presence of residual pulmonary vascular obstruction (RPVO). Planar venti...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/j.thromres.2019.09.038
更新日期:2019-12-01 00:00:00
abstract::Endothelial cells from human umbilical vein were incubated in vitro with thrombin in the absence or presence of unfractionated heparin (UFH), low molecular weight heparin (LMWH) or dermatan sulfate (DS) to clarify the effect of these glycosaminoglycans on thrombin-stimulated prostaglandin I2 (PGI2) production. Althoug...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(90)90065-k
更新日期:1990-02-15 00:00:00
abstract::Porcine and human umbilical vein and adult blood vessels were studied for the presence and synthesis of factor VIII related antigen (VIIIR:Ag) and fibronectin (Fn) by immunofluorescence histology and immunoautoradiography. Investigation of human tissue confirmed the widespread distribution of VIIIR:Ag on the endotheli...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(83)90042-7
更新日期:1983-02-01 00:00:00
abstract::It has been suggested that unstable angina at rest, like acute myocardial infarction, might be associated with a thrombotic process. In order to study the hypothesis that myocardial ischemia during exercise could also be associated with an activation of blood coagulation and/or fibrinolysis, we investigated the presen...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(92)90222-v
更新日期:1992-01-01 00:00:00
abstract::Plasma membranes of pig platelets were isolated and subjected to solubilization with digitonin. Binding of [3H]ketanserin to the solubilized membrane fraction, optimal at pH 7.5, was time and protein dependent and was greatly reduced by increasing ionic strength of the incubation buffer. Saturation analysis and inhibi...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(85)90253-1
更新日期:1985-09-15 00:00:00
abstract::Arterial thrombosis and venous thromboembolism (VTE) are traditionally considered two different entities. However, patients with unprovoked VTE are at higher risk of developing subclinical and overt atherosclerosis compared to healthy controls challenging these distinctions. Obesity may explain the association between...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/j.thromres.2020.04.035
更新日期:2020-07-01 00:00:00
abstract::Heparin-induced thrombocytopenia (HIT) is a transient hypercoagulability state initiated, paradoxically, by the anticoagulant, heparin. It is characterized by antibody-induced activation of platelets, leading to thrombin generation. Many patients with HIT develop thrombosis; even when heparin is stopped because of "is...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/s0049-3848(03)00336-0
更新日期:2003-05-01 00:00:00
abstract::Sandwich ELISA systems were developed to measure human von Willebrand factor (vWF). In one system the microtitre plates were coated with goat F(ab')2 to vWF. The F(ab')2 different molecular forms in the soluble phase. VWF antigen bound by the F(ab')2 antibody was subsequently determined by using horse-radish peroxidas...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(86)90047-2
更新日期:1986-07-01 00:00:00
abstract:INTRODUCTION:Edoxaban is an oral, once-daily direct factor Xa (FXa) inhibitor. Although rapidly cleared, strategies to reverse edoxaban-mediated effects on anticoagulation are needed in cases of excessive bleeding or emergency. This study evaluated the effect of two prohemostatic agents, recombinant factor VIIa (rFVIIa...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2014.07.036
更新日期:2014-10-01 00:00:00
abstract:INTRODUCTION:No data are available regarding appropriate strategies for the transition of patients undergoing total hip or knee replacement (THR/TKR) surgery from subcutaneous low molecular weight heparin (LMWH) to rivaroxaban. This study determined the pharmacodynamic effects of rivaroxaban on the first day of adminis...
journal_title:Thrombosis research
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/j.thromres.2012.07.014
更新日期:2012-11-01 00:00:00
abstract::The von Willebrand factor (vWF) is found in plasma and in platelets. The concentration and multimeric composition of the vWF in platelets of 160 patients with bleeding tendency were examined since very little is known about the platelet vWF. For quantitative analysis of the platelet vWF, a modified ELISA was establish...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(92)90212-s
更新日期:1992-03-01 00:00:00
abstract::Trimethylamine-N-oxide (TMAO), one of the products in choline metabolite, is recently reported to be associated with cardiovascular diseases (CVD) that mainly attribute to atherothrombosis. However, the mechanisms how TMAO functions in the pathogenesis of CVD and atherothrombosis remain elusive. Tissue factor (TF) has...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2019.02.028
更新日期:2019-05-01 00:00:00
abstract:INTRODUCTION:Preterm infants often require assisted ventilation, however ventilation when applied to the immature lung can initiate ventilator-induced lung injury (VILI). The biotrauma which underscores VILI is largely undefined, and is likely to involve vascular injury responses, including hemostasis. We aimed to use ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2020.09.036
更新日期:2020-12-01 00:00:00
abstract:INTRODUCTION:Even though thrombocytopenia following transcatheter aortic valve implantation (TAVI) has been described, further investigation of this phenomenon is needed. AIMS:To determine which factors may explain the fall in platelet count that occurs after implantation of a TAVI device, including markers of platele...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2017.05.020
更新日期:2017-08-01 00:00:00
abstract::Disadvantages of current bleeding time methods include poor reproducibility, limited repeatability, and at times scar formation. We report a new, in vitro technique which circumvents these problems. Venous blood is collected in sodium citrate, stored capped in a siliconized tube at 37 degrees C until use, and made to ...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/0049-3848(83)90011-7
更新日期:1983-07-01 00:00:00
abstract::While the role of platelets in hemostasis is well characterized from a biological perspective, the biophysical interactions between platelets and their mechanical microenvironment are relatively unstudied. The field of cellular mechanics has developed a number of approaches to study the effects of extracellular matrix...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/j.thromres.2013.12.037
更新日期:2014-04-01 00:00:00
abstract::Since the 19(th) century an association between cancer and thromboembolic events has been described, with a poorer survival prognosis. Production and secretion of procoagulant factors affect tumor biology and cancer-associated thrombosis. Tissue factor (TF) exerts coagulant and protease activated receptor (PAR)-depend...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/S0049-3848(14)50013-8
更新日期:2014-05-01 00:00:00
abstract:OBJECTIVE:To compare rates of VTE occurrence in obese versus non-obese hospitalized patients who received UFH 5000 units subcutaneously q8 h. MATERIALS AND METHODS:This was a retrospective cohort study conducted in an academic medical center in the United States. Consecutive adult patients who were hospitalized during...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2018.07.027
更新日期:2018-09-01 00:00:00
abstract::Activation of the coagulation and inflammatory systems are physiologically occurring during pregnancy. However, excess activation of either system is well documented in gestational vascular diseases (GVD). GVD are placenta-mediated pregnancy complications and a major cause of feto-maternal morbidity and mortality. The...
journal_title:Thrombosis research
pub_type: 杂志文章,评审
doi:10.1016/S0049-3848(17)30063-4
更新日期:2017-03-01 00:00:00
abstract::Patients with active cancer have a heightened risk of venous thromboembolism (VTE). This risk is further increased by the initiation of chemotherapy. Although previous studies have suggested that the use of parenteral thromboprophylaxis in all ambulatory cancer patients receiving chemotherapy significantly decreases t...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2018.01.018
更新日期:2018-04-01 00:00:00
abstract::Interaction with circulating platelets is considered an important virulent mechanism for Staphylococcus aureus (S. aureus) bacteria to induce endocarditis, a severe infectious disease with high incidence of systemic thrombosis. It therefore represents an important target for pharmacological intervention. In this study...
journal_title:Thrombosis research
pub_type: 杂志文章
doi:10.1016/j.thromres.2004.11.016
更新日期:2005-01-01 00:00:00