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Source: Blood
Condition: Thrombosis
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Total 98 results found since Jan 2013.
Regulatory Genetic Variation at the S100B Gene Associates with Vaso-Occlusive Manifestations in Sickle Cell Disease
In sickle cell disease (SCD) polymerization of hemoglobin S under deoxygenated conditions causes vaso-occlusion, which can manifest as acute pain crisis and progressive bone/organ damage. Molecular studies have attributed vaso-occlusion to elevated vascular adhesion and inflammatory responses, whereas the genetic regulation has only recently been assessed.Genomic DNA isolated from peripheral blood mononuclear cells (PBMCs) was hybridized to Illumina Human 610-Quad SNP array for the PUSH and Walk-PHaSST cohorts and to Affrymetrix SNP 6.0 array for the Howard SCD expression cohort. Single nucleotide polymorphisms (SNPs) for ...
Source: Blood - November 21, 2018 Category: Hematology Authors: Zhang, X., Zhang, W., Saraf, S. L., Nekhai, S., Gladwin, M. T., Machado, R., Gordeuk, V. R. Tags: 113. Hemoglobinopathies, Excluding Thalassemia-Basic and Translational Science: Poster I Source Type: research
Risk Factors and Manageability of the Mainly Mild Mucocutaneous Bleeding Profile Observed in Attp Patients Treated with Caplacizumab during the Phase III Hercules Study
Conclusions: The safety profile of caplacizumab was favorable. In line with its pharmacology, treatment with caplacizumab was associated with an increased risk of mucocutaneous bleeding. These events were generally mild to moderate, and the majority did not require therapeutic intervention. While the number of patients receiving DOACs was low, no increased risk for bleeding with antithrombotic therapy was observed.DisclosuresCataland: Alexion: Research Funding; Shire: Consultancy; Ablynx: Consultancy, Other: Member of Advisory Board. Scully: Novartis: Honoraria, Other: Member of Advisory Board, Speakers Bureau. Peyvandi: N...
Source: Blood - November 21, 2018 Category: Hematology Authors: Cataland, S. R., Scully, M., Peyvandi, F., Coppo, P., Knobl, P., Kremer Hovinga, J. A., Metjian, A., De La Rubia, J., Pavenski, K., Minkue, J., Sousa, R. P., Callewaert, F., De Winter, H. Tags: 311. Disorders of Platelet Number or Function: Poster I Source Type: research
Replacing PT-INR Monitoring of Warfarin with Fiix-NR in Clinical Practice Reduces Thromboembolism without Increasing Bleeding Despite Reduced Number of Dose Adjustments
Conclusions: These results are in agreement with the results of the Fiix-trial and show that ignoring factor VII during VKA monitoring is safe and leads to reduction in thromboembolism without increasing bleeding. Although TTR was identical in both groups, the dose adjustment need was reduced possibly indicating that less anticoagulation variability in the Fiix-NR group explains reduced thromboembolism.FigureDisclosuresGudmundsdottir: Hart Biologicals Ltd: Consultancy, Patents & Royalties: Hart Biologicals Ltd is commercializing the Fiix-PT which will be ready for marketing in Europe in the beginning of year 2019 and p...
Source: Blood - November 21, 2018 Category: Hematology Authors: Oskarsdottir, A. R., Gudmundsdottir, B. R., Onundarson, P. T. Tags: 332. Antithrombotic Therapy: Poster I Source Type: research
Clinical Outcome Following Reinstitution of Anticoagulation after Major Gastrointestinal Bleed: A Single Institutional Analysis
Conclusion: Given the rising national trend on the use of anticoagulants for various medical necessities, it is imperative that a safe and efficient process be devised on reinstitution of anticoagulation post MGIB to guide Clinicians. Although our study represents a single institutional analysis, it concurs with recent studies that early resumption of anticoagulant following stabilization of MGIB is associated with lower thromboembolic events. Timing for resumption depends largely on the medical reason for anticoagulation; reinstitution by day 7 appear safe for patients on mechanical valve whereas after day 12 maybe approp...
Source: Blood - November 21, 2018 Category: Hematology Authors: Ezekwudo, D. E., Gaikazian, S., Anusim, N., Konde, A. S., Zakalik, D., Huben, M. T., Stender, M., Anderson, J., Jaiyesimi, I. Tags: 332. Antithrombotic Therapy: Poster I Source Type: research
Acute Neurotoxicity during ALL Therapy Is Associated with Treatment Intensity, Age and Female Sex - an Analysis of SAE Reports from the UKALL 2003 Trial
Discussion:This large study identifies treatment intensity as the main risk factor for developing acute neurotoxicity with female sex, age and CNS status having a significant modifying effect. CNS status may reflect increased intrathecal therapy given to non-CNS-1 patients. Females are more vulnerable to cranial radiotherapy induced neurotoxicity but this is the first report of female sex as a risk factor on contemporary chemotherapy treatment protocols. Reassuringly, the occurrence of acute neurotoxicity did not influence survival rates. These data provide an important benchmark for ongoing international deep phenotyping ...
Source: Blood - November 21, 2018 Category: Hematology Authors: Wahid, Q.-u.-A., Hamadeh, L., McGowan, S., Hough, R., Vora, A., Moorman, A. V., Halsey, C. Tags: 612. Acute Lymphoblastic Leukemia: Clinical Studies: Poster I Source Type: research
Coagulation Profile of Sickle Cell Patients with Leg Ulcers
CONCLUSIONSIn SCD patients with leg ulcers, PC and PS levels are significantly lower than in SCD patients without leg ulcers. Additionally, in SCD patients with leg ulcers, there is a trend towards decreased levels of AT III and increased LA positivity. FVL and prothrombin gene mutations were rare in our cohort, consistent with the general population. The above findings did not correlate clinically with a history of DVT/PE in the same population.Our results of decreased NOACs confirm previous reports from our group that demonstrated similar findings. Of greater significance, however, is our finding that sickle cell patient...
Source: Blood - November 21, 2018 Category: Hematology Authors: Ogu, U. O., Buscetta, A., Crouch, E., You, S., Bradford, C., Heo, M., Abdallah, K., Vinces, G., Bonham, V. L., Minniti, C. Tags: 114. Hemoglobinopathies, Excluding Thalassemia-Clinical: Poster II Source Type: research
Bleeding Related Episodes, Thrombotic Events and Platelet Counts Among Immune Thrombocytopenia Patients Receiving Second Line Therapy
CONCLUSIONS: This retrospective real world evidence study compares mean platelet response and burden of both BREs and TEs in ITP patients treated with different second-line treatments. Although there were significant differences in mean platelet counts achieved with the second-line treatments, TEs were observed with similar incidence across all treatments. Patients who received splenectomy had the highest mean platelet counts and also the highest proportion of patients who experienced TEs, though differences in TEs did not reach statistical significance. Incidence proportion of patients with BREs was lower in patients trea...
Source: Blood - November 21, 2018 Category: Hematology Authors: Said, Q., Lal, L. S., Andrade, K., Nezami, B., Graves, J. A., Roy, A., Cuker, A. Tags: 311. Disorders of Platelet Number or Function: Poster II Source Type: research
Emicizumab for the Treatment of Acquired Hemophilia_A: Lessons Learned from 4 Very Different Cases
In conclusion, emiczumab seems to be an effective hemostatic therapy also for AHA, which offers several advantages: subcutaneous weekly therapy, good hemostatic efficacy, possible outpatient therapy, the option to reduce the intensity of immunosuppressive therapy to avoid side effects (as the patients are protected from bleeding), and seems even to be more cost effective than bypassing agents. However, special attention is necessary on the use of appropriate lab assays (chromogenic FVIII assays), the artificial effects on APTT and Bethesda assays, the recognition of the remission, and to avoid the concomitant use of APCC. ...
Source: Blood - November 21, 2018 Category: Hematology Authors: Knoebl, P., Sperr, W. R., Schellongowski, P., Staudinger, T., Jilma-Stohlawetz, P., Quehenberger, P., Koder, S., Ay, C., Gleixner, K. V. Tags: 322. Disorders of Coagulation or Fibrinolysis: Poster II Source Type: research
Chronic Kidney Disease (CKD) in the U.S. Hemophilia Population: A Cohort Study
Conclusions: In this interim analysis of an ongoing national prospective cohort study, older men with moderate to severe hemophilia commonly report risk factors for CKD, including HTN (51.5%), DM, viral infection, and potential renal damaging medication use. Only 11.6% had CVD. Urological symptoms were also common, including hematuria and obstructive symptoms with urination.In our cohort, 11.4% met the definition of CKD, defined as the presence of either kidney damage or GFR < 60 ml/min/1.73 m2 for ≥ 3 months. The distribution of GFR values appeared similar to the general population. As with risk factors associated w...
Source: Blood - November 21, 2018 Category: Hematology Authors: Sood, S. L., Cheng, D., Shapiro, A., Kessler, C. M., Key, N. S., Quon, D., Eyster, M. E., Manco-Johnson, M. J., Kempton, C. L., Cuker, A., Ragni, M. V., Kuriakose, P., von Drygalski, A., Kouides, P. A., Escobar, M. A., Wheeler, A. P., Wang, T.-F., Leissin Tags: 322. Disorders of Coagulation or Fibrinolysis: Poster II Source Type: research
Management of Cerebral Vein Thrombosis in a Canadian Tertiary Hospital
Introduction: Cerebral vein thrombosis (CVT) is an uncommon cause of stroke and is more likely to affect young adults and children. Women have a three-fold increased risk compared to men, owing to gender specific factors such as oral contraceptive use (OCP), pregnancy, and hormone replacement therapies. The presenting symptoms of CVT are non-specific and include headache, seizure, focal neurological deficits, or coma as the most severe presentation. The rarity and variable symptoms of the disease leads to delayed diagnosis and implementation of treatment. With improved imaging techniques and increased awareness in recent y...
Source: Blood - November 21, 2018 Category: Hematology Authors: Castellucci, L. A., Chiang, P. Tags: 332. Antithrombotic Therapy: Poster II Source Type: research
Benefits and Limitations of Long-Term Eculizumab Treatment for Paroxysmal Nocturnal Hemoglobinuria (PNH): Real-World Data from Large Cohort Study in Russia
Conclusions: The results of the study show both the high efficacy and limitations of treatment with eculizumab for PNH in real-world practice. Prospectively confirmed significant improvement of the overall survival on eculizumab stress the need for faster and wider access to costly therapy. Nevertherless, a number of limitations, including BTH and extravascular hemolysis, lack of control of bone marrow failure and further clonal evolution, determine the relevance of next-generation complement inhibitors and risk-adjusted allogeneic HSCT as a curative option.DisclosuresKulagin: Alexion Pharmaceuticals, Inc: Consultancy, Honoraria.
Source: Blood - November 21, 2018 Category: Hematology Authors: Kulagin, A., Klimova, O., Rudakova, T., Golubovskaya, I., Ivanova, M., Smirnova, A., Lapina, A., Bykova, T., Babenko, E., Popova, M., Dobronravov, V., Afanasyev, B. Tags: 508. Bone Marrow Failure: Poster II Source Type: research
Sialic Acid Content on Platelet Surface Glycoproteins Modulates Thrombin-Induced Activation
Platelets are fundamentally important in normal hemostasis and pathological thrombosis (i.e. cardiovascular diseases, stroke, etc.). Platelets mediate the initial first-step in hemostasis through surface glycoproteins like the GPIb-IX-V complex and integrin αIIbβ3 (GPIIbIIIa). Although the functions of platelet surface glycoproteins are well known, the roles of posttranslational modifications on those surface glycoproteins are poorly understood. We have recently shown that sialic acid is a key regulator of platelet survival. As platelets circulate and age in blood, they lose sialic acid and are rapidly cleared b...
Source: Blood - November 21, 2018 Category: Hematology Authors: Prete, A., Urtula, A., Grozovsky, R. Tags: 301. Vascular Wall Biology, Endothelial Progenitor Cells, and Platelet Adhesion, Activation, and Biochemistry: Poster III Source Type: research
Fibrinolysis of Contracted Blood Clots Depends on Whether Plasminogen Activator Acts from inside or Outside
Fibrinolysis involves the dissolution of polymeric fibrin networks that is required to restore blood flow through vessels obstructed by clots and thrombi. The efficiency of lysis depends on the susceptibility of fibrin to enzymatic digestion, which is governed by the structure and spatial organization of fibrin fibers as well as porosity and composition of the clot. Platelet-driven clot contraction results in compaction of the erythrocytes into the core of the clot, effectively reducing the permeability of the clot, and influences fibrin network structure. We have shown that clot contraction is reduced in blood from patien...
Source: Blood - November 21, 2018 Category: Hematology Authors: Tutwiler, V., Peshkova, A. D., Le Minh, G., Zaitsev, S., Litvinov, R. I., Cines, D. B., Weisel, J. W. Tags: 321. Blood Coagulation and Fibrinolytic Factors: Poster III Source Type: research
Monoclonal Gammopathy of Undetermined Significance - Patient Characteristics and Referral Patterns
ConclusionMGUS is often incidentally detected as part of a work up for other medical conditions, and our results reveal that there is a variety of reasons for which monoclonal testing is performed. With recent developments in our understanding of the significance of monoclonal gammopathy and its association with certain renal and organ damage (Fermand et al., 2018; Leung et al., 2012), there may be a change in how the paraproteinemia investigations are utilized by clinicians in different disciplines. It will be important to recognize and establish appropriate indications for testing. Furthermore, MGUS patients present with...
Source: Blood - November 21, 2018 Category: Hematology Authors: Lee, H., Street, L., Tay, J., Grossman, J., Thaell, J. F., Goodyear, D., McCulloch, S., Duggan, P., Neri, P., Jimenez-Zepeda, V. Tags: 651. Myeloma: Biology and Pathophysiology, excluding Therapy: Poster III Source Type: research
Home Based Primary Care for Patients with Sickle Cell Disease
Conclusion: Overall, home based primary care seems to be a promising alternative for pts with SCD. It had a significant impact on patient quality of care and may improve prescription adherence, but more data are needed to determine if it has an effect on healthcare utilization for pts with SCD.DisclosuresMoore: Ohio State University College of Medicine: Research Funding. Desai: FDA: Research Funding; Pfizer: Research Funding; University of Pittsburgh: Research Funding; Selexy/Novartis: Research Funding; NIH: Research Funding; Ironwood: Other: Adjudication Committee.
Source: Blood - November 21, 2018 Category: Hematology Authors: Moore, M. D., Schamess, A., Williams, N., Huang, Y., Menka, G., Desai, P. C. Tags: 901. Health Services Research-Non-Malignant Conditions: Poster III Source Type: research
