Abstract
A new technique which allows lymphocytapheresis to be combined with cascade filtration (CF) is described in this paper. This therapeutical approach was applied for the treatment of patients affected by necrotizing vasculitis (1), inflammatory myopathies (5), Cryoglobulinemia (5), immune complex polyneuropathies (7), rheumatoid arthritis (3) and psoriasis (3 patients). Two cases of Waldenstrom's macroglobulinemia were also treated after the onset of the hyperviscosity syndrome. 78 procedures have been performed without any untoward effect. From a clinical point of view all patients had some improvement following treatment, thereby confirming not only the clinical safety of this therapeutical approach but also its effectiveness at least in the management of diseases which usually respond to plasma exchange treatment. Laboratory investigations showed that with CF it is possible to selectively remove IgM, immune complexes, fibrinogen, lipoproteins and high molecular weight plasma components, sparing most albumin and IgG globulins (85 and 71%, respectively).
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