P.M. Mannucci – författare

While the enzyme cascade that allows coagulation is well known physiologically, its elegant practical examples are vividly demonstrable in the clinical application of blood and components for the treatment of bleeding problems in surgery, trauma or in congenital deficiency in patients. This volume provides the fundamental and recent understanding relating to coagulation pathways, recombinant technology and other methods for coagulation factor production, up to date laboratory assay, preservation of cellular and plasma components, and their clinical use in surgery and medicine, including the immuno response to repeated challenge to contaminating protein in coagulation factor concentrates. The interrelated but multi-disciplinary chapters have been integrated in four sections: Principles and Fundamentals: Mechanism of thrombin formation; structure -- function relationship of coagulation proteins, role of calcium and anticoagulant: blood collection on haemostatic potential of plasma proteins and platelets; Factor VIII yields from anticoagulant exchanged plasma.Preservation Aspects: Platelet function preservation, platelet interaction with vessel wall; trends in the use of coagulation factor concentrate; immuno purification of Factor VIII; structural and fundamental properties of recombinant coagulation factors. Laboratory Aspects: Platelets counting and function testing; platelet crossmatch predictive value; clinical efficacy of platelet concentrate; protein C and protein S; principle of coagulation factor assay; standardisation of clotting factor assays; clinical efficacy of clotting factor concentrates. Clinical Consequences

Before the introduction of DDA VP, centrnl diabetes insipidus was treated by the administration of a more or less purified extract from bovine or porcine posterior pituitaries, and the prepamtions were mostly given in the form of nasal snuff. In 1956, the structure of vasopressin became known and two forms were found, namely arginine vasopressin (A VP) in humans and most other species, and lysine vasopressin (L VP) which was found in the pig. In 1967, Zaornl et al. were the frrst to synthesize l-desamino-8-D-arginine vasopressin, DDA VP. In comparison with the compounds which were previously available, DDA VP offered increased antidiuretic potency and an equally distinct shift of the antidiuretic to pressor potency rntio. As a result of the pioneering studies of Cash and Mannucci, numerous publications appeared in the medical literature of the 80's, widening the fields of clinical application of the drug. A very important aspect of this drug is that it can be used as an alternative treatment for mild factor VllI deficiencies, mild hemophilia A and von Willebrnnd's disease.These congenital deficiencies are far from mre and have, up to now, been treated with plasma-derived factor VIII concentrates; in the countries in which desmopressin has not been used a consistent proportion of these patients have seroconverted for HIV 1 and hepatitis.