Journal of clinical apheresis
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Randomized Controlled Trial Clinical Trial
Effect of combined treatment with immunoadsorption and membrane filtration on plasma coagulation-Results of a randomized controlled crossover study.
The combined use of immunoadsorption (IA) and membrane filtration (MF) may markedly enhance removal of IgM and complement component C1q, supporting its use as an element of recipient desensitization in antibody-incompatible transplantation. However, coagulation factor removal may contribute to altered hemostasis, posing a risk of bleeding in the perioperative setting. This secondary endpoint analysis of standard coagulation assays and rotational thromboelastometry (ROTEM®) was performed in the context of a randomized controlled crossover study designed to assess the effect of combined IA (GAM-146-peptide) and MF on levels of ABO antigen-specific IgM. ⋯ Moreover, the addition of MF led to a substantial prolongation of activated partial thromboplastin time, possibly due to depletion of macromolecular coagulation factors contributing to intrinsically activated coagulation. Our study demonstrates substantial effects of combined IA+MF on clot formation, which may be mainly attributable to fibrinogen depletion. We suggest that the use of combined apheresis in the setting of transplant surgery may necessitate a careful monitoring of coagulation.
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Multicenter Study
Report of the ASFA apheresis registry study on Wilson's disease.
Wilson's disease is a rare autosomal recessive genetic disorder that results in accumulation of copper in the liver, brain, cornea and kidney. Therapeutic plasma exchange (TPE) has been used to remove copper and provide a bridge to liver transplantation. We report here the collective experiences through the ASFA apheresis registry on Wilson's disease. ⋯ All 10 patients with Wilson's disease who underwent TPE had a positive outcome in terms of 6-month survival. In this first report of the ASFA apheresis registry study, we have demonstrated the value of using this registry to collect apheresis-related patient outcomes from multiple centers.