PubMed · 7049813
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A Modiano. 1982. [Coagulation disorders caused by snake bite].. https://pubmed.ncbi.nlm.nih.gov/7049813/
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Inherited coagulation protein deficiencies associated with bleeding diatheses may present with spontaneous bleeding early in life, or may not be recognized until the development of hemorrhage after trauma or surgery. Diagnostic evaluation with coagulation screening tests, followed by confirmation with coagulation factor assays, is essential for appropriate management. For moderate-to-severe hemophilia, treatment includes coagulation factor replacement with purified, plasma-derived coagulation factor, or in the case of hemophilia A, factor VIII concentrate produced with recombinant techniques. Increased use of pharmacologic agents such as desmopressin acetate for patients with mild hemophilia A or type 1 von Willebrand's disease has allowed physicians to treat patients without the risk of infectious complications from plasma-derived factor concentrates. In addition to the management of the inherited bleeding disorders, patients may also require management of human immunodeficiency virus infection, hepatitis, and coagulation factor inhibitors. Issues for the coming years will include continued work to ensure product safety, the role of prophylactic treatment to prevent longterm disabilities, and the application of gene therapy to the management of bleeding disorders.
The use of colloid agents to achieve hypervolemia in the prevention and treatment of postsubarachnoid hemorrhage (post-SAH) vasospasm is included in the standard of care at many institutions. Risk profiles are necessary to ensure appropriate use of these agents. In a series of 85 patients with recent aneurysmal SAH, 26 developed clinical symptoms of vasospasm. Fourteen of the 26 were treated with hetastarch for volume expansion while the other 12 received plasma protein fraction (PPF). Clinically significant bleeding pathologies were noted in six patients who received hetastarch as a continuous intravenous infusion. Hetastarch increased partial thromboplastin time from a mean of 23.9 seconds to a mean of 33.1 seconds (p < 0.001) in all patients who received infusions of this agent, while no effect was noted in the 12 patients who received PPF infusions. No other coagulation parameters were altered. This study shows an increase in coagulopathy with the use of hetastarch as compared with the use of PPF for the treatment of postaneurysmal vasospasm.