Abstract:
:We evaluated the performance of eight d-assays for the exclusion of deep vein thrombosis (DVT); Biopool AutoDimer, Biopool MiniQuant, bioMèrieux MDA D-Dimer, VIDAS, Dade Behring D-Dimer Plus, Trinity Biotech AMAX, NycoCard D-dimer and IL Test D-Dimer. The assays were evaluated both as stand-alone tests, and in combination with pretest probability (PTP). D-dimer assays and PTP assessment were performed on 410 patients presenting to the emergency department with suspected acute DVT. DVT was diagnosed in 76 of 410 patients (18.5%) by compression ultrasound or other imaging techniques, as required. Receiver operator characteristics analysis established optimum cut-off values and these were compared with manufacturer's cut-off values where provided. As stand-alone tests, the assays varied immensely regarding cut-off value, negative predictive value (NPV 93-100%) and specificity (0-67%). At least one patient with confirmed DVT had a low d-dimer level by each method: to achieve 100% sensitivity it would be necessary to reduce cut-off values to levels below clinical usefulness. When low d-dimer was used in combination with PTP, six of eight methods achieved > or =98% NPV, with a diagnosis of DVT excluded in 16-44% of patients without the requirement for diagnostic imaging. The highly variable diagnostic performance of these d-dimer assays means that some assays are unsuitable for certain diagnostic strategies. However, our data suggest that the combination of sensitive D-dimer assays with an assessment of PTP may be used to exclude a diagnosis of DVT.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Gardiner C,Pennaneac'h C,Walford C,Machin SJ,Mackie IJdoi
10.1111/j.1365-2141.2005.05394.xsubject
Has Abstractpub_date
2005-03-01 00:00:00pages
842-8issue
6eissn
0007-1048issn
1365-2141pii
BJH5394journal_volume
128pub_type
杂志文章abstract::Immunoglobulin kappa (Igkappa) gene recombinations can be used - similarly to IgH rearrangements - as clonal markers in B-lineage leukaemias. Based on the extensive junctional diversity, these rearrangements represent valuable targets for the analysis of minimal residual disease (MRD). In order to provide a simple met...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01557.x
更新日期:1999-08-01 00:00:00
abstract::The purpose of the present work were to identify the initial characteristics associated with long-term survival in chronic granulocytic leukaemia (CGL) and to analyse the accuracy of prognostic models in identifying long-term survivors. 813 Philadelphia (Ph) chromosome-positive, nonblastic CGL patients from six Americ...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2141.1994.tb04912.x
更新日期:1994-06-01 00:00:00
abstract::We investigated the molecular basis of factor VII deficiency in a Japanese patient and identified a novel missense mutation in the signal sequence of the gene. Factor VII activity and antigen level measured in the patient were 10.7% and 11% of normal, respectively. All exons except 1B and the 5'-flanking region contai...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00666.x
更新日期:1998-04-01 00:00:00
abstract::The in vitro efficacies of three new drugs--clofarabine (CLOF), nelarabine (NEL) and flavopiridol (FP) - were assessed in a panel of acute lymphoblastic leukaemia (ALL) cell lines. The 50% inhibitory concentration (IC50) for CLOF across all lines was 188-fold lower than that of NEL. B-lineage, but not T-lineage lines,...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2007.06527.x
更新日期:2007-04-01 00:00:00
abstract::Some case reports and a Japanese series suggest benefit from the use of rituximab in patients with intravascular large B-cell lymphoma (IVL). Rituximab efficacy was evaluated in Western patients with IVL, comparing outcome of 10 patients treated with rituximab + chemotherapy (R-CT) and of 20 patients treated with chem...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2141.2008.07338.x
更新日期:2008-10-01 00:00:00
abstract::Our knowledge of the cellular and molecular mechanisms of platelet production has greatly expanded in recent years due to the opportunity to culture in vitro megakaryocytes and to create transgenic animals with specific genetic defects that interfere with platelet biogenesis. However, in vitro models do not reproduce ...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/bjh.12752
更新日期:2014-04-01 00:00:00
abstract::Resistance to the anticoagulant effects of activated protein C (APC) is now considered the most prevalent cause of inherited thrombophilia. The great majority of patients with activated protein C resistance (APCR) have a missense mutation in the factor V molecule (factor V Leiden, FVR506Q) resulting in defective inact...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1996.d01-1937.x
更新日期:1996-12-01 00:00:00
abstract::Post-transplant lymphoproliferative disorder (PTLD) after haemopoietic stem cell transplantation is a serious complication that occurs in 8-22% of patients with high-risk factors. We retrospectively investigated tolerance and efficacy of humanized anti-CD20 monoclonal antibody (rituximab) as first-line treatment in 12...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.03041.x
更新日期:2001-10-01 00:00:00
abstract::Immune reconstitution was studied prospectively in 66 children who underwent 77 haematopoietic cell transplantations (HCT): 46 autologous HCTs in 39 patients and 31 allogeneic HCTs in 27 patients. We studied the dynamic analysis of immune recovery with regard to potential factors affecting its speed, including age, ty...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2002.03560.x
更新日期:2002-07-01 00:00:00
abstract::Recent studies have demonstrated that parenteral deferroxamine can prolong life in patients with iron overload. We have developed a non-human primate model of iron overload and have accurately determined negative iron balance in parenteral and oral studies of deferroxamine and a new chelator, desferrithiocin. Cebus mo...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1989.tb07732.x
更新日期:1989-07-01 00:00:00
abstract::We have investigated the potency of the C677T mutation in the methylene tetrahydrofolate reductase (MTHFR) gene as a genetic risk factor in women with a history of early (=12 weeks gestation) and/or late (>12 weeks gestation) recurrent miscarriage (three or more consecutive pregnancy losses). Fifty-seven of the tota...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:
更新日期:1999-04-01 00:00:00
abstract::Screening of the skeleton by plain radiography was compared to magnetic resonance imaging (MRI) of the lumbar spine in 41 patients with multiple myeloma. In the lumbar spine, myeloma lesions were detected in 15 patients with radiography and in 28 patients with MRI. Radiography of the lumbar spine was not positive in a...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2141.1995.tb05363.x
更新日期:1995-11-01 00:00:00
abstract::Diffuse large B-cell lymphoma (DLBCL) is a heterogeneous disease and "double-hit" DLBCL, with both MYC and BCL2 translocations has a poor prognosis. In this study, we investigated whether MYC and BCL2 protein expression in tissue would predict survival in DLBCL. The study included 106 cases of de novo DLBCL treated wi...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.12763
更新日期:2014-05-01 00:00:00
abstract::The following diagnostic criteria are proposed to classify four clinical subtypes of HTLV-1 associated adult T-cell leukaemia-lymphoma (ATL): (1) Smouldering type, 5% or more abnormal lymphocytes of T-cell nature in PB, normal lymphocyte level (less than 4 x 10(9)/l), no hypercalcaemia (corrected calcium level less th...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1991.tb08051.x
更新日期:1991-11-01 00:00:00
abstract::In vitro culture of hairy cells (HC) (five patients) with alpha IFN (100 U/ml) significantly enhanced MHC and CD22 antigen expression and reduced CD25, sIg and FMC7 positivity, together with consistent but not significant reductions in CD9, 19 and HC2. A sixth patient, who was refractory to the effects of alpha IFN in...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1989.tb07719.x
更新日期:1989-07-01 00:00:00
abstract::Idiopathic thrombotic thrombocytopenic purpura (TTP) is characterized by frequent recurrences. Effective screening for relapses will enable intervention prior to overt episodes of TTP. The present study used a modified assay to detect ADAMTS13 (a disintegrin and metalloprotease with thrombospondin type 1 motif, 13) ac...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2008.07107.x
更新日期:2008-05-01 00:00:00
abstract::T-cell large granular lymphocytic leukaemia (T-LGLL) is a chronic clonal lymphoproliferative disorder of cytotoxic T lymphocytes which commonly occurs in older patients and is often associated with autoimmune diseases. Among 246 patients with T-LGLL seen at our institution over the last 10 years, we encountered 15 cas...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.16336
更新日期:2020-04-01 00:00:00
abstract::This study describes the largest series reported to date, of individuals belonging to unrelated families carrying a beta-thalassaemia-like phenotype in whom the beta-globin gene was found to be structurally intact by sequence analysis. This genetic determinant appears haematologically heterogeneous, displaying either ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2005.05915.x
更新日期:2006-03-01 00:00:00
abstract::Platelets have recently been shown to trigger intrinsic coagulation by two alternative pathways, protect active clotting factors from inactivation by plasma inhibitors and catalyse intrinsic coagulation reactions on the platelet surface to form fibrin. To determine whether these platelet coagulant activities (PCA) mig...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2141.1976.tb00946.x
更新日期:1976-03-01 00:00:00
abstract::A single immunoglobulin light chain lambda was identified in the blast cells of two out of 12 patients with common acute lymphoblastic leukaemia (C-ALL) using the alkaline phosphatase/anti-alkaline phosphatase (APAAP) technique. Inhibition at the cell surface proved that the reaction was a genuine anti-lambda reaction...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1989.tb06274.x
更新日期:1989-01-01 00:00:00
abstract::Mutations of the p53 tumour suppressor gene have frequently been observed in several types of solid tumours and are believed to be implicated in the development of these tumours. To determine the relevance of p53 mutations in haematologic neoplasms, we performed polymerase chain reaction-single strand conformation pol...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1992.tb08213.x
更新日期:1992-06-01 00:00:00
abstract::Heparin binding on polymorphonuclear leucocytes (PMNL) was characterized. Heparin binding was specific, rapid, saturable and reversible. One single class of heparin binding sites was found with a dissociation constant of 1.22 mumol/l and 7.7 x 10(6) sites per PMNL. The binding was independent of the anticoagulant acti...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1992.tb08176.x
更新日期:1992-05-01 00:00:00
abstract::Mastocytosis is an uncommon disease characterized by a proliferation of tissue mast cells involving various organs, particularly the bone marrow. Though rare, the association of mastocytosis and haematological malignancies is well established. However, the frequency of mastocytosis reported in patients with essential ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1991.tb08011.x
更新日期:1991-09-01 00:00:00
abstract::Recently developed ferrokinetic methods offer a tool to measure effective and ineffective erythropoiesis and mean red-cell lifespan (Ricketts et al, 1975). We have used this tool to investigate erythropoiesis in normal subjects and in patients with the anaemia of active rheumatoid arthritis. In normal subjects the res...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1978.tb01114.x
更新日期:1978-07-01 00:00:00
abstract::A new method of in vivo bioassay for erythropoietin (EPO) is described. This method is based on the measurement of immature reticulocytes in EPO-treated mice using an automatic microcell counter, and is simpler and more precise than the existing methods of polycythaemic mouse assay and starved rat assay. Normal mice w...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1991.tb08595.x
更新日期:1991-03-01 00:00:00
abstract::A DNA-based method was developed to genotype donors for the human platelet antigens HPA-1a and -1b. Sequence-specific primers (SSP) were used in the polymerase chain reaction (PCR) which allowed the HPA-1a/1a, -1b/1b and -1a/1b genotypes to be determined by PCR alone, no second analytical stage was required. 10 donors...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1993.tb08680.x
更新日期:1993-09-01 00:00:00
abstract::Anaplastic large cell lymphomas (ALCLs) are rare CD30+ peripheral T-cell lymphomas (PTCLs) classified according to the expression of the anaplastic lymphoma kinase (ALK+) protein or not (ALK-). We have analysed the outcome and risk factors for survival in a population-based bi-national cohort of patients with systemic...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/bjh.14740
更新日期:2017-09-01 00:00:00
abstract::Acute graft-versus-host disease (GvHD) is an important complication of bone marrow transplantation in humans. Risk factors are imprecisely defined and controversial. We analysed data from 2036 recipients of HLA-identical sibling transplants for leukaemia or aplastic anaemia to identify risk factors for GvHD. Analyses ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1987.tb06160.x
更新日期:1987-12-01 00:00:00
abstract::The levels of platelet-associated Igs (PAIgs) and plasma circulating antiplatelet antibodies were evaluated by a flow cytometric immunofluorescence assay (FCIFA), an enzyme-linked immunoassay (ELISA), and a platelet radioactive antiglobulin test (PRAT), in a group of 45 human immunodeficiency virus (HIV)-infected intr...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1996.00502.x
更新日期:1996-05-01 00:00:00
abstract::T cells modified with anti-CD19 chimeric antigen receptor (CAR) containing either CD28 or 4-1BB (also termed TNFRSF9, CD137) costimulatory signalling have shown great potential in the treatment of acute lymphoblastic leukaemia (ALL). However, the difference between CD28 and 4-1BB costimulatory signalling in CAR-T trea...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.15195
更新日期:2018-05-01 00:00:00