نتایج جستجو برای: coagulation disorders
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Routine coagulation tests have been used for many years in the preoperative setting in the belief that they identify patients who may have acquired or congenital bleeding disorders, and on the assumption that testing will predict perioperative bleeding allowing treatment to be given and prevent it. Coagulation ‘screens’ typically include the prothrombin time (PT) and the activated partial throm...
asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...
Infertility is a common problem that affects many couples worldwide, with an estimated 48.5 million experiencing infertility. The causes of infertility are diverse and complex, combination genetic, environmental, lifestyle factors contributing to the problem. While reproductive medicine has advanced significantly in recent years, diagnosis treatment remains challenge, particularly cases where c...
Menorrhagia is a common presentation of bleeding disorders, especially vWD in women. The frequency of these disorders in women with menstruation problems is determined in this study. Total of 273 patients in reproductive age with menorrhagia were investigated for bleeding disorders in two steps. Step one includes CBC, PT, PTT and BT tests which were performed for all patients; patients diagnose...
The novel coronavirus (SARS‑CoV‑2) infection manifested by a pandemic and has wide range of complications, including the nervous system’s complications. Despite fact that older people with comorbidities are more at risk developing complications from sequelae previous COVID‑19 disease, significant link between cerebrovascular disorders in young middle‑aged is increasingly mentioned literature. de...
Childhood purpura Overview Purpura (from the Latin, purpura, meaning "purple") is the appearance of red or purple discolorations on the skin that do not blanch on applying pressure. They are caused by bleeding underneath the skin. Purpura measure 0.3-1cm, while petechiae measure less than 3mm and ecchymoses greater than 1cm. The integrity of the vascular system depends on three interacting elem...
Inherited deficiencies of plasma proteins involved in blood coagulation generally lead to lifelong bleeding disorders. The severity of these disorders is generally inversely proportional to the degree of factor deficiency. Among all the autosomal recessive rare bleeding disorders, which include afibrinogenaemia, factor (F) II, FV, FV + VIII, FVII, FX, FXI, FXIII, the combined deficiency of coag...
In the course of liver transplantation many patients develop coagulation and bleeding disorders. On the other hand, some patients suffer thromboembolic events in the perioperative period with sometimes fatal outcome. For this reason, in 1999 we changed our coagulation management for liver transplantation and abolished the routine prophylaxis with antifibrinolytic drugs. In this context we imple...
Aberrant immune responses represent the underlying cause of central nervous system (CNS) autoimmunity, including multiple sclerosis (MS). Recent evidence implicated the crosstalk between coagulation and immunity in CNS autoimmunity. Here we identify coagulation factor XII (FXII), the initiator of the intrinsic coagulation cascade and the kallikrein-kinin system, as a specific immune cell modula...
Coagulation activation has been demonstrated in two prototypic autoimmune skin diseases, chronic autoimmune urticaria and bullous pemphigoid, but only the latter is associated with increased thrombotic risk. Two markers of coagulation activation (prothrombin fragment F1+2 and fibrin fragment D-dimer) were measured by immunoenzymatic methods in plasma samples from 30 patients with active chronic...
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