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Specialty: Hematology
Condition: Hemorrhagic Stroke

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Total 295 results found since Jan 2013.

Caplacizumab reduces the frequency of major thromboembolic events, exacerbations, and death in patients with acquired thrombotic thrombocytopenic purpura.
CONCLUSION: In total, 11.4% of caplacizumab-treated patients versus 43.2% of placebo-treated patients experienced one or more major thromboembolic event, an exacerbation or died. This analysis shows the potential for caplacizumab to reduce the risk of major thromboembolic morbidities and mortality associated with aTTP. This article is protected by copyright. All rights reserved. PMID: 28445600 [PubMed - as supplied by publisher]
Source: Thrombosis and Haemostasis - April 26, 2017 Category: Hematology Authors: Peyvandi F, Scully M, Kremer Hovinga JA, Knöbl P, Cataland S, De Beuf K, Callewaert F, De Winter H, Zeldin RK Tags: J Thromb Haemost Source Type: research

Platelet-related biomarkers and their response to inhibition with aspirin and p2y 12 -receptor antagonists in patients with acute coronary syndrome
AbstractThe PLATelet inhibition and patient Outcomes (PLATO) trial showed that treatment with ticagrelor reduced the rate of death due to vascular causes, myocardial infarction and stroke when compared to clopidogrel in patients with ST-elevation or non-ST-elevation acute coronary syndrome (ACS). While the comparative benefit of ticagrelor over clopidogrel increased over time, event rates accrued in both groups during the study period. The purpose of our biomarker-based exploratory analysis was to determine whether long-term platelet inhibition may be associated with plateletadaptation. A sample of 4000 participants from t...
Source: Journal of Thrombosis and Thrombolysis - June 12, 2017 Category: Hematology Source Type: research

Predicting the higher rate of intracranial hemorrhage in glioma patients receiving therapeutic enoxaparin
Venous thromboembolism occurs in up to one-third of patients with primary brain tumors. Spontaneous intracranial hemorrhage (ICH) is also a frequent occurrence in these patients, but there is limited data on the safety of therapeutic anticoagulation. To determine the rate of ICH in patients treated with enoxaparin, we performed a matched, retrospective cohort study with blinded radiology review for 133 patients with high-grade glioma. After diagnosis of glioma, the cohort that received enoxaparin was 3 times more likely to develop a major ICH than those not treated with anticoagulation (14.7% vs 2.5%; P = .036; hazard rati...
Source: Blood - June 22, 2017 Category: Hematology Authors: Mantia, C., Uhlmann, E. J., Puligandla, M., Weber, G. M., Neuberg, D., Zwicker, J. I. Tags: Free Research Articles, Thrombosis and Hemostasis, Clinical Trials and Observations Source Type: research

Acute management of hemostasis in patients with neurological injury
Neurological injuries can be divided into those with traumatic and non-traumatic causes. The largest groups are traumatic brain injury (TBI) and non-traumatic stroke. TBI patients may present with intracranial hemorrhages (contusions, subdural-, or epidural hematomas). Strokes are ischemic or hemorrhagic. In all these disorders thrombosis and hemostasis play a major role. Treatment aims to either cease bleeding and/or restore perfusion. We reviewed hemostatic and thrombolytic therapies in patients with neurological injuries by MEDLINE and EMBASE search using various key words for neurological disorders and hemostatic thera...
Source: Transfusion Medicine Reviews - July 13, 2017 Category: Hematology Authors: M. Irem Baharoglu, Anneke Brand, Maria M. Koopman, Marinus Vermeulen, Yvo B.W.E.M. Roos Source Type: research

Platelet transfusion to reverse antiplatelet therapy before decompressive surgery in patients with intracranial haemorrhage
ConclusionPlatelet concentrate transfusion before cranial decompressive surgery in patients with ICH complicating APT showed a low risk for cardio‐cerebral thrombotic complications. However, the risk of rebleeding remains high, especially in patients with chronic ICH and those pretreated with clopidogrel.
Source: Vox Sanguinis - July 1, 2017 Category: Hematology Authors: M. Baschin, S. Selleng, J. ‐P. Zeden, A. Westphal, T. Kohlmann, H. W. Schroeder, A. Greinacher, T. Thiele Tags: Original Paper Source Type: research

Evaluating safety of thrombolysis in chronic kidney disease patients presenting with pulmonary embolism using propensity score matching
AbstractTo assess the safety of thrombolytic therapy in chronic kidney disease (CKD) patients who present with pulmonary embolism (PE). We used the Nationwide Inpatient Sample Database to identify patients who underwent thrombolysis for PE between 2010 and 2014. The patients were divided into two groups: (1) No CKD and (2) CKD. Patients with and without CKD were matched using 1:1 propensity score matching and a caliper width of 0.01. The primary outcomes were in-hospital mortality and hemorrhagic events. The secondary outcomes were blood transfusions, length of stay and total hospitalization charge. Two separate, multivari...
Source: Journal of Thrombosis and Thrombolysis - September 1, 2017 Category: Hematology Source Type: research

Management of rivaroxaban- or apixaban-associated major bleeding with prothrombin complex concentrates: a cohort study
There is uncertainty regarding the effectiveness and occurrence of thromboembolic events in patients treated with prothrombin complex concentrates (PCCs) for the management of major bleeding events (MBEs) on rivaroxaban or apixaban. We investigated the effectiveness of PCCs given for the management of MBEs in patients on rivaroxaban or apixaban. Between 1 January 2014 and 1 October 2016, we prospectively included patients on rivaroxaban or apixaban treated with PCCs for the management of MBEs. The effectiveness of PCCs was assessed by using the International Society of Thrombosis and Hemostasis Scientific and Standardizati...
Source: Blood - October 12, 2017 Category: Hematology Authors: Majeed, A., Agren, A., Holmström, M., Bruzelius, M., Chaireti, R., Odeberg, J., Hempel, E.-L., Magnusson, M., Frisk, T., Schulman, S. Tags: Free Research Articles, Thrombosis and Hemostasis, Clinical Trials and Observations Source Type: research

Acute Isolated Paraplegia Revealing an Ewing Sarcoma of the Thoracic Spine
In this report, we present the case of a child with ES localized at the upper thoracic level. ES was revealed by isolated acute complete paraplegia mimicking medullary stroke. The girl was operated for decompressive laminectomy and tumor removal. Afterwards, she received adjuvant therapy. Subsequently, the child showed a slow improvement of her leg sensitivity associated with a partial motor recovery. ES can affect the mobile spine. Acute symptomatology due to intratumoral hemorrhage and sudden spinal cord compression may suggest the diagnosis. Neurological outcomes following ES are generally poor.
Source: Journal of Pediatric Hematology Oncology - October 26, 2017 Category: Hematology Tags: Online Articles: Clinical and Laboratory Observations Source Type: research

Anticoagulation with VADs and ECMO: walking the tightrope.
Authors: Raffini L Abstract The evolution of devices for mechanical circulatory support (MCS), including ventricular assist devices (VADs) for patients with heart failure and extracorporeal membrane oxygenation (ECMO) for patients with acute cardiac or respiratory failure, has improved survival for subsets of critically ill children and adults. The devices are intricate and complex, allowing blood to bypass the heart or lungs (or both). As blood flows through these artificial devices, normal hemostasis is disrupted, coagulation is promoted, and in the absence of anticoagulation, a thrombus may form in the device, r...
Source: Hematology ASH Education Program - December 10, 2017 Category: Hematology Tags: Hematology Am Soc Hematol Educ Program Source Type: research

Acute agranulocytosis after oral administration of dabigatran: a rare case report and a short review of literature
AbstractThis case report describes agranulocytosis immediately after oral administration of dabigatran in a 68  years old man with atrial fibrillation (AF). Dabigatran is an oral, reversible and competitive thrombin inhibitor that has shown promising results. In patients with atrial fibrillation of RE-LY study (Randomized Evaluation of Long-Term Anticoagulant Therapy), dabigatran administered at a dose of 1 50 mg, as compared with warfarin, was associated with lower rates of stroke and systemic embolism but similar rates of major hemorrhage. Dabigatran is administered as a prodrug and the peak of the plasma concentration...
Source: Journal of Thrombosis and Thrombolysis - February 5, 2018 Category: Hematology Source Type: research

Prothrombin complex concentrate for reversal of direct factor Xa inhibitors prior to emergency surgery or invasive procedure: a retrospective study
AbstractDirect oral factor Xa (FXa) inhibitors are widely used for anticoagulation but a targeted antidote is not available. Four-factor prothrombin complex concentrate (4FPCC) has been shown in observational studies to support hemostasis in most patients with major bleeding related to FXa inhibitors with an acceptable rate of thromboembolic events. However, the effectiveness of 4FPCC for reversal of FXa inhibitors prior to emergency surgery or invasive procedures is unclear. A retrospective chart review was performed in patients that received 4FPCC at Hamilton General Hospital from 2015 to 2017. The primary effectiveness ...
Source: Journal of Thrombosis and Thrombolysis - March 21, 2018 Category: Hematology Source Type: research

Dabigatran reduces endothelial permeability through inhibition of thrombin-induced cytoskeleton reorganization
Dabigatran etexilate (DE), a new oral anti-coagulant, is a direct thrombin inhibitor. Clinical trials showed the favorable benefit-to-risk profile of DE compared to warfarin for the prevention of ischemic stroke in patients with atrial fibrillation. Remarkably, patients treated with dabigatran showed reduced rates of intracerebral hemorrhage compared to warfarin. As the breakdown of endothelial barrier integrity is associated with hemorrhagic events and as thrombin increases endothelial permeability, we hypothesized that dabigatran preserves the endothelial barrier by inhibiting thrombin-induced permeability.
Source: Thrombosis Research - April 25, 2018 Category: Hematology Authors: Hyun-Jung Choi, Na-Eun Kim, Jayoung Kim, Sunho An, Seung-Hee Yang, Jimin Ha, Sunghee Cho, Il Kwon, Young Dae Kim, Hyo Suk Nam, Ji Hoe Heo Tags: Full Length Article Source Type: research

Causes of Death in Patients with Venous Thromboembolism Anticoagulated with Direct Oral Anticoagulants: A Systematic Review and Meta-Analysis
Semin Thromb Hemost DOI: 10.1055/s-0038-1642644Death is more frequent than nonfatal recurrent venous thromboembolism (VTE) and major bleeding after acute VTE. The analysis of the causes of death is fundamental to explore new strategies to reduce mortality rates in these patients. The authors performed a meta-analysis to analyze mortality and independently adjudicated causes of death in anticoagulated patients due to VTE, and to evaluate potential differences between different anticoagulant schemes. They searched MEDLINE and CENTRAL, from January 1, 2000, to January 31, 2017, and performed additional searches in Web sites o...
Source: Seminars in Thrombosis and Hemostasis - May 3, 2018 Category: Hematology Authors: G ómez-Outes, Antonio Terleira-Fern ández, Ana Isabel Lecumberri, Ram ón Su árez-Gea, Mª Luisa Calvo-Rojas, Gonzalo Vargas-Castrill ón, Emilio Tags: Review Article Source Type: research

Hemostasis in the Very Young
Semin Thromb Hemost DOI: 10.1055/s-0038-1660852Hemostasis is a dynamic process that starts in utero. The coagulation system evolves with age, as evidenced by marked physiological differences in the concentration of the majority of hemostatic proteins in early life compared with adulthood. This concept, known as “developmental hemostasis,” has important biological and clinical implications. Overall, impaired platelet function, along with physiologically reduced levels of vitamin K–dependent and contact coagulation factors, may cause poorer clot firmness even in healthy neonates. However, increased activity of von Will...
Source: Seminars in Thrombosis and Hemostasis - June 18, 2018 Category: Hematology Authors: Kenet, Gili Barg, Assaf Arie Nowak-G öttl, Ulrike Tags: Review Article Source Type: research

Appropriateness of non-vitamin K antagonist oral anticoagulant dose in patients with atrial fibrillation in Israel: A population-based study
The non-vitamin K oral antagonists (NOACs) are at least as effective as warfarin in the prevention of stroke in non valvular atrial fibrillation (NVAF) and are associated with less intracranial hemorrhage. Many patients with NVAF inappropriately do not receive anticoagulants often because of the inconvenience associated with warfarin administration. NOACs have the potential to increase anticoagulation use because they are safer and easier to administer than warfarin. Indeed, the use of anticoagulation in patients with newly diagnosed AF in many countries is increasing as a result of the use of NOACs in preference to warfarin [1].
Source: Thrombosis Research - July 24, 2018 Category: Hematology Authors: Martin H. Ellis, Sari Greenberg Dotan, Ariel Hammerman, Erez Battat, Estela Derazne, Orly Avnery Tags: Letter to the Editors-in-Chief Source Type: research