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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 213 (1967), S. 79-80 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The medium on which the electrophoresis is performed is cellulose acetate in a gel form ('Cellogel', manufactured by Chemetron, via G. Modena 24, Milano, Italy); this has already been used in investigations of the lactic dehydrogenase isozymes3. We use strips 4 cm wide, 17 cm long and 0-25 mm ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Medicine 41 (1990), S. 55-64 
    ISSN: 0066-4219
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Haemophilia 2 (1996), S. 0 
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: There has been wide variation in the reported haemorrhagic manifestations of factor VII deficiency. We examined type and frequency of clinical manifestations in 28 Iranian and Italian patients with severe deficiency (factor VII coagulant activity 2% or less). The most frequent symptoms were epistaxis and menorrhagia, whereas soft tissue bleeding such as haemarthrosis and muscle haematoma was less frequent. Only 5 of 9 patient who underwent surgery without factor VII replacement therapy had postoperative bleeding severe enough to require blood transfusion. No thrombotic manifestation occurred. A factor VII functional assay based on the use of human thromboplastin was a better predictor of the bleeding tendency of these patients than a rabbit thromboplastin-based functional assay or immunoassay. On the whole, this study shows that in severe factor VII deficiency bleeding in mucosal tracts is not uncommon. Surgery can sometimes be performed without replacement therapy and without haemorrhagic complications.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Haemophilia 8 (2002), S. 0 
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary.  Deficiencies of coagulation factors (other than factor VIII and factor IX) that cause a bleeding disorder are inherited as autosomal recessive traits and are generally rare, with prevalences in the general population varying between 1 : 500 000 and 1 : 2 000 000. In the last few years, the number of patients with recessively transmitted coagulation deficiencies has increased in European countries with a high rate of immigration of Islamic populations, because in these populations, consanguineous marriages are frequent. Owing to the relative rarity of these deficiencies, the type and severity of bleeding symptoms, the underlying molecular defects and the actual management of bleeding episodes are not as well established as for haemophilia A and B. This article reviews these disorders in terms of their clinical manifestations and characterization of the molecular defects involved. The general principles of management are also discussed.Keywords: afibrinogenaemia, autosomal recessive disorders, factor VIII, factor XI, factor XIII.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A multicentre retrospective survey was conducted to assess the efficacy and side-effect profile of porcine factor VIII (pFVIII:C) given by continuous infusion (CI) to patients with congenital haemophilia A and inhibitors. Twenty-nine episodes in 18 patients were treated by CI of pFVIII:C. Efficacy was graded as good in 79% of infusions and fair in 17%. There was a failed response in only one episode. Fourteen percent of patients experienced transfusion reactions with bolus doses, but no reactions were observed in patients given CI. There were no severe reactions. All the reactions resolved following interruption of the infusion and administration of steroids. Premedication did not prevent reactions. In this series the median decrease in platelet count after bolus injection of pFVIII:C was −67 × 109 L−1 compared with a median decrease of −2 × 109 L−1 during the course of CI, thus, continuous infusion of pFVIII:C appears to have less effect on platelet count than bolus injection. An anamnestic response was associated with 77% of infusions. This high rate of anamnesis reflects patient selection, in that they were all known to have high-level high-responding FVIII inhibitors with cross-reactivity to pFVIII. After reconstitution, the pFVIII:C showed little loss in factor VIII activity in solution over a 24-h period. We conclude that pFVIII:C may be effectively administered by CI to patients with haemophilia A and high-responding FVIII inhibitors. CI is the probably the mode of administration of choice for intensive replacement therapy with pFVIII.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Haemophilia 4 (1998), S. 0 
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. von Willebrand disease is the most frequent of inherited bleeding disorders (1:100 affected individuals in the general population). The aim of treatment is to correct the dual defects of haemostasis, i.e., abnormal coagulation expressed by low levels of factor VIII and abnormal platelet adhesion expressed by a prolonged bleeding time. There are two main options available for the management of von Willebrand disease: desmopressin and transfusion therapy with blood products. Desmopressin is the treatment of choice in patients with type 1 von Willebrand disease, who account for approximately 80% of cases. This pharmacological compound raises endogenous factor VIII and von Willebrand factors and thereby corrects the intrinsic coagulation defect and the prolonged bleeding time in most type 1 patients. In type 3 and in the majority of type 2 patients desmopressin is not effective, and it is necessary to resort to plasma concentrates containing factor VIII and von Willebrand factor. Treated with virucidal methods, these concentrates are effective and currently safe, but the bleeding time defect is not always corrected by them. Platelet concentrates or desmopressin can be used as adjunctive treatments when poor correction of the bleeding time after concentrates is associated with continued bleeding.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Haemophilia 11 (2005), S. 0 
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary.  The Italian Association of Haemophilia Centres reviewed and finally approved in November 2004 the new Italian Guidelines for the diagnosis and treatment of patients with clotting factor inhibitors. The recommendations have been based on the identification of levels of clinical evidence derived from the systematic review carried out in 2003 by the School of Health and Related Research, the University of Sheffield, UK, and further integrated by clinical studies published from 2003 to 2004. The Italian guidelines consist of six major domains concerning inhibitor definition, epidemiology, risk factors, diagnosis, inhibitor eradication, management of bleeding episodes, in patients with congenital and acquired coagulation disorders, with 121 statements, 59 synthesis and 54 recommendations. We report here recommendations and open issues concerning the diagnosis and monitoring of inhibitors, inhibitor eradication and the management of bleeding in patients with haemophilia A and B.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The antiparasite agent pentamidine has been shown to inhibit human platelet aggregation in vitro at concentrations that (potentially) may be attained in patient plasma after the administration of the drug by nebulizer. We measured platelet aggregation in platelet-rich plasma (PRP) before and after the administration of 300 mg nebulized pentamidine to 10 HIV-positive patients with severe haemophilia on prophylaxis against Pneumocystis carinii pneumonia. All patients had normal platelet counts. PAF-acether, U46619, collagen and ADP at different concentrations were used as agonists. Platelet aggregation was lower in PRP samples taken at the end of pentamidine administration and 1 h thereafter than in samples taken at the same time points in control experiments (without the administration of pentamidine). The inhibition of platelet aggregation was mild and tended to be overcome by higher concentrations of platelet agonists. The bleeding time was prolonged from 5 to 15 min in one patient but did not change in the remaining nine patients. In conclusion, this controlled study shows that nebulized pentamidine inhibits platelet aggregation in HIV-positive haemophiliacs without significantly affecting their bleeding times. Although this mild inhibitory effect may not be clinically relevant in haemophiliacs with normal platelet counts despite their defect in intrinsic coagulation, patients with HIV-related thrombocytopenia should be monitored to detect any excessive prolongation of their bleeding times after nebulized pentamidine.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Haemophilia 4 (1998), S. 0 
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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