Abstract:
:Seventeen adults received the antifibrinolytic drug tranexamic acid during cardiac surgery utilizing extracorporeal circulation (ECC). In 8 patients, drug administration began prior to skin incision (pre-ECC); infusions commenced after ECC and protamine administration in another 9 patients (post-ECC). Compared with the post-ECC group, the pre-ECC group exhibited less bleeding via mediastinal drains (420 vs. 655 mL/12 h median, P = 0.024), decreased frequency of the presence (greater than or equal to 10 micrograms/mL) of fibrin split products (P less than 0.05), and greater platelet dense granule content of adenosine diphosphate after surgery (15.47 vs. 4.05 nmoles/mg protein median, P = 0.021). Follow-up in vitro study of tranexamic acid inhibition of plasmin-induced platelet activation utilizing normal human platelet rich plasma and porcine plasmin revealed a 13-fold lower concentration of tranexamic acid for 50% inhibition when plasmin was preincubated with the drug (1.2 micrograms/mL, 95% CI = 1.13-1.60 micrograms/mL) compared to when platelet rich plasma was preincubated with the drug (16 micrograms/mL, 95% CI = 7.3-99. micrograms/mL). Plasmin inactivated with tranexamic acid retained its ability to inhibit thrombin-induced platelet activation, thus suggesting that tranexamic acid inhibits plasmin's catalytic activity and not its binding to platelets. Both clot lysis and platelet dysfunction may contribute to bleeding after ECC. Tranexamic acid blocks plasmin-induced partial platelet activation during ECC, thus preserving platelet function and promoting hemostasis after ECC.
journal_name
Am J Hematoljournal_title
American journal of hematologyauthors
Soslau G,Horrow J,Brodsky Idoi
10.1002/ajh.2830380208subject
Has Abstractpub_date
1991-10-01 00:00:00pages
113-9issue
2eissn
0361-8609issn
1096-8652journal_volume
38pub_type
临床试验,杂志文章,随机对照试验abstract::Anemia is a major cause of morbidity and mortality among patients with sickle cell anemia. In this study, 108 episodes of severe anemia were prospectively evaluated in 108 patients with hemoglobin SS disease attending the pediatric sickle cell clinic of the University of Nigeria Teaching Hospital, Enugu, Nigeria. Youn...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.10285
更新日期:2003-03-01 00:00:00
abstract::How often elevated serum ferritin in primary-care patients reflects increased iron stores (normally 0.8 g in men, 0.4 g in women) is not known. The Hereditary Hemochromatosis and Iron Overload Screening (HEIRS) study screened 101,168 primary-care participants (44% Caucasians, 27% African-Americans, 14% Asians/Pacific ...
journal_title:American journal of hematology
pub_type: 杂志文章,多中心研究
doi:10.1002/ajh.21179
更新日期:2008-08-01 00:00:00
abstract::Nucleotide sequence analysis of the 5' beta-globin gene flanking region has been carried out for numerous homozygous beta-thalassemia patients with different mutations and of various ethnic backgrounds. Four different rearrangements were found associated with numerous beta-thalassemia mutations. The (AT)X(T)Y repeat m...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830450108
更新日期:1994-01-01 00:00:00
abstract:DISEASE OVERVIEW:Hodgkin lymphoma (HL) is an uncommon B-cell lymphoid malignancy affecting 8500 new patients annually and representing approximately 10.2% of all lymphomas in the United States. DIAGNOSIS:HL is composed of two distinct disease entities: classical HL and nodular lymphocyte predominant HL. Nodular sclero...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.25071
更新日期:2018-05-01 00:00:00
abstract::Pancytopenia is a rare complication of the thionamide therapy reported secondary to aplastic anemia, the bone marrow being invariably hypocellular. We present a case of a 16-year-old female with Graves' disease who presented with massive bone marrow plasmocytosis mimicking multiple myeloma. The patient had already bee...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.1127
更新日期:2001-08-01 00:00:00
abstract::The fat embolism syndrome is an important complication of patients with sickle cell hemoglobinopathies because of severe morbidity and mortality. Our recent experience with three cases that survived with intensive supportive care and prompt use of transfusion stimulates this review. A high index of suspicion, prompt u...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.20348
更新日期:2005-05-01 00:00:00
abstract::Sickle cell disease is a single amino acid molecular disorder of hemoglobin leading to its pathological polymerization, red cell rigidity that causes poor microvascular blood flow, with consequent tissue ischemia and infarction. The manifestations of this disease are protean.Among them, leg ulcers represent a particul...
journal_title:American journal of hematology
pub_type:
doi:10.1002/ajh.21838
更新日期:2010-10-01 00:00:00
abstract::Intravenous anti-D immune globulin (anti-D IGIV) is indicated for the treatment of immune thrombocytopenic purpura (ITP) in nonsplenectomized patients who are Rh(D)-positive. Recent reports have described episodes of intravascular hemolysis (IVH) and acute renal failure (ARF) after anti-D IGIV. We report the first adu...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.10432
更新日期:2003-12-01 00:00:00
abstract::In this descriptive study, all 425 reports were included concerning drug-associated agranulocytosis as registered between 1974 and 1994 in the files of the Drug Safety Unit of the Dutch Inspectorate for Health Care. All reports were analysed as to the probability of agranulocytosis or neutropenia according to previous...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199803)57:3<206::aid-ajh4>
更新日期:1998-03-01 00:00:00
abstract::In thalassemia, fetal hemoglobin (HbF) augmentation with hydroxycarbamide (also known as hydroxyurea) is not always successful. The expected parallel effects on red cell (RBC) membrane deformability, cell hydration, and membrane phospholipid organization, all important for extending RBC life span and increasing Hb, ha...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.21266
更新日期:2008-11-01 00:00:00
abstract::Primary mediastinal large B-cell lymphoma (PMBL) is a distinct subtype of diffuse large B-cell lymphoma (DLBCL) that shows overlap with classical Hodgkin lymphoma (CHL) and a favorable prognosis compared to mediastinal gray-zone lymphoma (MGZL). We performed immunohistochemistry on initial diagnostic specimens of 49 c...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.24485
更新日期:2016-10-01 00:00:00
abstract::Precursor B-ALL blasts may be positive for CD20 in up to 50% of cases. There are few reports on the use of the anti CD20 monoclonal antibody, rituximab, in children with B-ALL. We report on two adult patients with precursor B-ALL who developed significant hepatic toxicity during induction chemotherapy. Single agent ri...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.20675
更新日期:2006-12-01 00:00:00
abstract::Morbid obesity is a health problem that has been shown to be refractory to diet, exercise, and medical treatment. Surgeries designed to promote weight loss, termed bariatric surgery and typically involving a gastric bypass procedure, have recently been implemented to treat obesity with high success rates. However, lon...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.21106
更新日期:2008-05-01 00:00:00
abstract::Expression of alkaline phosphatase (ALP) on the surface membrane of neutrophils (mNAP) was studied by immunofluorescence using an anti-ALP monoclonal antibody. Fluorescent intensity distribution of mNAP was analyzed using FACS (fluorescence-activated cell sorter). The mean fluorescent intensity (MFI) of the mNAP in th...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199901)60:1<12::aid-ajh3>3
更新日期:1999-01-01 00:00:00
abstract::To compare the features of sickle-cell anemia in Brazil with those in other locales, we studied the effects of the beta-globin-like gene cluster haplotype and alpha-thalassemia upon the clinical and hematological features in 85 patients. The distribution of haplotypes differed from that in the United States and Jamaic...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8652(199610)53:2<72::AID-AJH3>3
更新日期:1996-10-01 00:00:00
abstract::Agnogenic myeloid metaplasia (AMM) is a chronic myeloproliferative disorder arising from a single hematopoietic cell. Approximately 5% of reported cases of AMM have terminated in leukemic crisis; however, the precise characteristics of the leukemic cells have rarely been reported. We report a case of AMM that occurred...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830440111
更新日期:1993-09-01 00:00:00
abstract::An HTLV-I-seronegative case of adult T-cell leukemia (ATL) carrying the HTLV-I genome is reported. Screening serological tests were negative and Western blot analysis revealed only a faint band for HTLV-I p24. Polymerase chain reaction (PCR) disclosed the presence of HTLV-I gag, pol, env, pX, and LTR sequences in the ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(SICI)1096-8652(199610)53:2<133::AID-AJH13
更新日期:1996-10-01 00:00:00
abstract::Mutations in the calreticulin gene (CALR) were recently identified in approximately 70-80% of patients with JAK2-V617F-negative essential thrombocytosis and primary myelofibrosis. All frameshift mutations generate a recurring novel C-terminus. Here we provide evidence that mutant calreticulin does not accumulate effic...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.24245
更新日期:2016-02-01 00:00:00
abstract::Various in vitro studies and clinical observations suggest that Fanconi's anemia (FA) patients are unable to detoxify adequately superoxide anions (O2-) released by activated phagocytes. Recent studies have shown that certain lymphokines such as tumor necrosis factor-alpha (TNF-alpha) and interferon-gamma (IFN-gamma) ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830420211
更新日期:1993-02-01 00:00:00
abstract::A common side effect of opioids is nausea and vomiting; however, the incidence in hospitalized patients receiving opioids for acute pain is unknown. We performed a retrospective study in adult patients with sickle cell disease admitted for an acute pain crisis during a six-month period to evaluate the incidence of nau...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.21031
更新日期:2008-03-01 00:00:00
abstract::Human T-cell leukemia virus (HTLV-I) is known to be associated with certain hematologic malignancies, and a related virus, HTLV-III/LAV, might be the cause of AIDS. Some persons with AIDS have had evidence of HTLV-I infection. Unrelated to these findings, it has been suggested that HTLV-I is transmitted via blood prod...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830200205
更新日期:1985-10-01 00:00:00
abstract::Sickle cell disease (SCD) is associated with early mortality. We sought to determine the incidence, cause, and risk factors for death in an adult population of patients with SCD. All patients aged >/=18 years seen at the Adult Sickle Cell Center at Duke University Medical Center between January 2000 and April 2005 wer...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.21569
更新日期:2010-01-01 00:00:00
abstract::Aragon et al [4] reported that rat erythrocytes can be cross-linked and permeabilized without significant inactivation or alterations of several enzymes in the glycolytic pathway. If this is the case, in situ kinetic analysis of the red cell enzymes in normal human red cells and abnormal red cells associated with hemo...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830130103
更新日期:1982-08-01 00:00:00
abstract::A risk score based on three biological features (CD38, ZAP-70, and IGHV mutational status) was previously developed to predict progression-free survival (PFS) in untreated Binet A CLL patients. Here we perform a score validation analysis in a prospective and independent cohort of patients. Biological markers (CD38, ZA...
journal_title:American journal of hematology
pub_type: 杂志文章,多中心研究
doi:10.1002/ajh.23729
更新日期:2014-07-01 00:00:00
abstract::With the emerging success of treating CD19 expressing B cell malignancies with ex vivo modified, autologous T cells that express CD19-directed chimeric antigen receptors (CAR), there is intense interest in expanding this evolving technology to develop effective modalities to treat other malignancies including solid tu...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.24794
更新日期:2017-09-01 00:00:00
abstract::We evaluated T-lymphocyte functions in the peripheral blood of a patient with B-cell chronic lymphocytic leukemia after transformation to large cell lymphoma (Richter's syndrome). A subpopulation of E-rosette adherent cells were found with T-lymphocytic surface markers (OKT3+/8+/4+), monocytic characteristics (latex i...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830200312
更新日期:1985-11-01 00:00:00
abstract::Forty-one patients with polycythemia vera (PV) according to the PVSG criteria were analysed retrospectively from January 1960 to March 1996. There were 23 male and 18 female patients with a median follow-up of 66.5 months (3-431 months). Median age was 62 (range: 37-85). The median hemoglobin level at diagnosis was 18...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199709)56:1<59::aid-ajh12>
更新日期:1997-09-01 00:00:00
abstract::The activation pathways for the generation of enzymes involved in blood clotting, clot lysis, complement activation, and kinin generation are briefly reviewed. The interrelationship of the four systems is illustrated by the multiple functions of four key enzymes: Factor XIIa, kallikrein, plasmin, and C1 esterase. The ...
journal_title:American journal of hematology
pub_type: 杂志文章,评审
doi:10.1002/ajh.2830040412
更新日期:1978-01-01 00:00:00
abstract::This analysis, using data from the bortezomib-melphalan-prednisone (VMP) arm of the Phase III VISTA study, investigated whether increased cumulative bortezomib dose could improve overall survival (OS) in transplant-ineligible patients with previously untreated multiple myeloma. Median cumulative bortezomib dose receiv...
journal_title:American journal of hematology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ajh.23933
更新日期:2015-04-01 00:00:00
abstract::Achievement of a complete response has been associated with improved outcomes in patients with multiple myeloma. Recently, increasing application of minimal residual disease (MRD) assessment has shown that MRD negativity is a powerful prognostic factor for survival outcomes. We wanted to examine the impact of the poly...
journal_title:American journal of hematology
pub_type: 临床试验,杂志文章
doi:10.1002/ajh.25481
更新日期:2019-07-01 00:00:00