Abstract:
:Until recently, thrombocytoses in childhood were considered to be rare. The literature on this subject is scarce and contradictory. When thrombocytosis is defined as a platelet count of more than 500 x 10(9)/L (500 000/mm3 or 500 000/microL), the occurrence in routine examinations at pediatric hospitals can be estimated as 3 to 13%. These are almost exclusively secondary thrombocytoses, which are the result of infections (most frequently), trauma and surgery, hypoxemia, immunologic disturbances, premature birth, gastrointestinal disorders, medications, stress situations, or previous loss of platelets. The secondary thrombocytosis usually has less then 800 x 10(9)/L platelets, is temporary, and occurs predominantly in infants and young children. If only thrombocytosis is present, thrombotic complications are practically nonexistent. Antithrombotic prophylaxis is not necessary unless other risk factors for thrombosis are present, such as vessel damage, permanent iron deficiency, hyperviscosity, immobilization. Primary thrombocytoses due to a defect of stem cells are extremely infrequent in childhood.
journal_name
Semin Thromb Hemostjournal_title
Seminars in thrombosis and hemostasisauthors
Sutor AHdoi
10.1055/s-2007-1000654subject
Has Abstractpub_date
1995-01-01 00:00:00pages
330-9issue
3eissn
0094-6176issn
1098-9064journal_volume
21pub_type
杂志文章,评审abstract::The international classification of functioning (ICF) has provided a basic framework for the measurement of outcomes in any health condition. This includes the assessment of the level of activity, participation, and the quality of life of an individual with hemophilia. The measure of activity is an assessment of the i...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0035-1552564
更新日期:2015-11-01 00:00:00
abstract::Numerous studies, performed in recent years, have provided the convincing demonstration that the incidence of newly diagnosed malignancy is increased among patients with unexplained venous thromboembolism during the first 6 to 12 months after the thromboembolic event. Among malignancies presenting with venous thromboe...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-994914
更新日期:1999-01-01 00:00:00
abstract::From injury through healing, thrombin has several important functions in blood clotting, subsequent clot lysis, and tissue repair. These include edema, inflammation, cell recruitment, cellular releases, transformations, mitogenesis, and angiogenesis. Thrombin also participates in disease states, such as venous thrombo...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-995828
更新日期:1998-01-01 00:00:00
abstract::Current guidelines for venous thromboembolism (VTE) primary prophylaxis are based on randomized clinical trials that exclude subjects at a potentially high bleeding risk. Thus no specific recommendation/algorithm for pharmacological prophylaxis in patients with thrombocytopenia and/or platelet dysfunction is available...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0031-1273090
更新日期:2011-04-01 00:00:00
abstract::Clinical and laboratory data of children with von Willebrand disease (VWD) types have been derived from retrospective studies and small case series. This article reports on the clinical and laboratory data of a large pediatric cohort in one single Argentinian center. The biological and clinical responses to desmopress...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0031-1281043
更新日期:2011-07-01 00:00:00
abstract::Factor (F) VIII is a large gene located near the terminus of the long arm of the X chromosome. It contains 26 exons that code for a signal peptide and a 2332 amino acid polypeptide with three different types of domains, namely A1-A2-B-A3-C1-C2. The A domains are homologous with each other and those of ceruloplasmin; s...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2003-37935
更新日期:2003-02-01 00:00:00
abstract::Platelet-type von Willebrand disease (PT-VWD) and type 2B von Willebrand disease (2B-VWD) are rare bleeding disorders characterized by increased ristocetin-induced platelet aggregation (RIPA) at low concentrations of ristocetin. Diagnosis of either condition is not easy and the differential diagnosis between the two e...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0033-1364183
更新日期:2014-03-01 00:00:00
abstract::Tissue factor pathway inhibitor (TFPI) is a Kunitz-type serine protease inhibitor found within the vascular system that is known to be released upon heparin administration. Tissue factor pathway inhibitor regulates the extrinsic pathway by inhibiting both factors VIIa and Xa. The role of TFPI in the prevention of thro...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-999011
更新日期:1996-01-01 00:00:00
abstract::Hip replacement surgery carries a high risk of thromboembolic complications, and pharmacological prophylaxis is routinely adopted in clinical practice. Meta-analyses have indicated that low molecular weight heparins (LMWHs) are clinically superior to conventional prophylaxis with unfractionated heparin. These analyses...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:
更新日期:1999-01-01 00:00:00
abstract::Anticoagulants are pivotal to achieve circulation in extracorporeal circuits. In this review we discuss several anticoagulants in clinical use or in the preclinical phase. In hemodialysis the low-molecular-weight heparins (LMWHs) appear to be as effective and safe as standard heparin (SH). The main advantages of LMWHs...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-996094
更新日期:1997-01-01 00:00:00
abstract::Each bone marrow megakaryocyte (MK) releases thousands of platelets into the circulation, and the underlying molecular and cellular mechanisms recently have received intense scrutiny. Genetic studies are beginning to clarify the mechanisms by which transcription factors help distinguish MK progenitors from other blood...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2004-833474
更新日期:2004-08-01 00:00:00
abstract::Neonatal hemostasis differs qualitatively, but in particular quantitatively, from hemostasis in older children and adults. Nevertheless, hemostasis in healthy neonates is functionally stable with no tendency to bleeding or thrombotic complications. In sick neonates, however, risk factors may disrupt this equilibrium a...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0036-1592299
更新日期:2016-10-01 00:00:00
abstract::In order to assess inhibitor development in previously untreated patients (PUPs) with severe (factor VIII [FVIII]<1%) and moderate (FVIII 1 to 5%) hemophilia A, a prospective study was initiated in 1976. During the 23-year study period, 72 hemophiliacs were frequently exposed prophylactically or on demand to plasma-de...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2002-32664
更新日期:2002-06-01 00:00:00
abstract::C-type lectin-like receptor 2 (CLEC-2) has been identified on the surface of platelets as a receptor for a platelet activating snake venom, rhodocytin/aggretin. CLEC-2 belongs to a C-type lectin superfamily and binds to a sialoglycoprotein, podoplanin, in vivo. Platelets play a crucial role in hemostasis and thrombosi...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0037-1604090
更新日期:2018-03-01 00:00:00
abstract::Tissue factor (TF) by forming a complex with factor VIIa (FVIIa) initiates blood coagulation. It was traditionally believed that the separation of FVIIa in circulation from subendothelial TF was the main control that was preventing spontaneous initiation of thrombosis and that circulating cells and endothelium did not...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0032-1333311
更新日期:2013-02-01 00:00:00
abstract::There is a persuasive body of evidence suggesting that tissue factor (TF) is a major determinant of tumor progression. In addition to its "traditional" function as the initiator of hemostasis, TF may support tumor progression through signaling mechanisms involving either direct signal transduction through the TF cytop...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2008-1079255
更新日期:2008-03-01 00:00:00
abstract::We present the clinical characteristics of pregnancy histories and subsequent pregnancy outcomes of 13 women who tested positive for anticardiolipin beta2-glycoprotein I antibody (aCLbeta2GPI). Six of the 13 women had a history of recurrent spontaneous abortion (RSA). The prevalence of aCLbeta2GPI syndrome among women...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2004-815631
更新日期:2003-12-01 00:00:00
abstract::Women with inherited or acquired thrombophilia are at increased risk for venous thromboembolism (VTE) when they use oral contraceptives (OCs) of either the second or third generation. For women who are heterozygous for Factor V Leiden, the risk is probably 28 to 50 of 10,000 women-years compared to 2 to 5 of 10,000 ye...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:
更新日期:1998-01-01 00:00:00
abstract::Non-Shiga toxin-associated hemolytic uremic syndrome (atypical HUS) is a rare form of thrombotic microangiopathy that associates hemolytic anemia, thrombocytopenia, and acute renal failure. The disease has been demonstrated to be linked with a complement alternative pathway dysregulation due to genetic defects but als...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0030-1262885
更新日期:2010-09-01 00:00:00
abstract::While case fatality rates in ischemic stroke tend to decline, the total number of strokes is expected to increase further in the future because of more people reaching a greater age. Acute ischemic stroke, usually caused by chronic arterial hypertension, in most cases is induced either by a sudden loss of perfusion pr...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-998991
更新日期:1996-01-01 00:00:00
abstract::Factor VIII inhibitory antibodies occur following treatment in more than 30% of subjects with severe factor VIII deficiency. Almost all inhibitor formation occurs in subjects with little if any circulating factor VIII. In the absence of in utero exposure to endogenous or maternal factor VIII, these subjects probably r...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2000-9820
更新日期:2000-01-01 00:00:00
abstract::The two components of biological variability are interindividual variability, which is the variability due to the heterogeneity of physiologic influences among subjects, and intraindividual variability, which is due to the variability in the same individual over time. Analysis of biological variation is crucial for es...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0029-1214155
更新日期:2009-02-01 00:00:00
abstract::Heparin is a familiar anticoagulant drug with properties that may impede tumor growth; it modifies properties of cells that contribute to malignant dissemination such as angiogenesis, growth factor and protease activity, immune function, proliferation, and gene expression. Heparin has antitumor effects in animal model...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2000-9499
更新日期:2000-01-01 00:00:00
abstract::Central venous catheters (CVCs) are important for the treatment of patients with cancer, especially in the perioperative and palliative care settings. These devices not only allow for the administration of chemotherapy, parenteral nutrition, and other intravenous therapies, but they may also improve the patients' qual...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0034-1371005
更新日期:2014-04-01 00:00:00
abstract::Atherosclerosis is the major underlying cause of cardiovascular diseases, the prevalence of which is continuously increasing, thus currently standing as the leading global cause of death. This pathology gradually develops over the course of 50 or more years throughout the life of an individual under the influence of a...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0039-1701019
更新日期:2020-07-01 00:00:00
abstract::Currently, in Germany, there is a successful program where patients monitor their own coagulation status through self-testing. The advent of a new generation of coagulometers has allowed more and more patients to use self-testing to monitor their coagulation status. The development of a structured training program by ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-996423
更新日期:1999-01-01 00:00:00
abstract::Essential thrombocythemia (ET) is a clonal myeloproliferative disorder of unknown origin primarily involving the megakaryocyte/platelet lineage. In an attempt to evaluate the role of the receptor c-mpl and its ligand thrombopoietin (TPO) in ET, various studies have been undertaken, the results of which are discussed h...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-996118
更新日期:1997-01-01 00:00:00
abstract:BACKGROUND:The normalized dilute Russell viper venom time (DRVVT) ratio provides a robust assay methodology for lupus anticoagulant (LA) detection. OBJECTIVES:We evaluated six normalized DRVVT LA screen and confirm systems for inter-method consistency. Reagents were purchased from Diagnostica Stago, Inc. (Parsippany, ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0033-1334865
更新日期:2013-04-01 00:00:00
abstract::We experienced 23 cases of venous thrombosis after gynecological surgery for the past 12 years at Tokyo Women's Medical University Hospital, representing 0.345 % of all patients. Eighteen of the 23 cases had deep venous thrombosis (DVT) including five cases followed by pulmonary embolism (PE), and five cases had PE wi...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-996036
更新日期:1998-01-01 00:00:00
abstract::Current concepts of the cause, pathophysiologic mechanisms, diagnosis, and management of acute and chronic DIC have been discussed. Considerable attention has been devoted to interrelationships that have remained confusing. Only by clearly understanding these pathophysiologic interrelationships can the clinician and l...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-1002793
更新日期:1988-10-01 00:00:00