[Quantitative assessment of protein replacement in therapeutic plasmapheresis].

AIM: To calculate parameters of replacement in which the amount of total protein (TP) in the circulating blood remains above critical level after removal of 17-75% of circulating plasm volume (CPL). MATERIAL AND METHODS: Therapeutic plasmapheresis (TPA) was made in 96 patients with rheumatoid arthritis, bronchial asthma, systemic lupus erythematosus and other diseases. The plasm was replaced by 0.9% sodium chloride solution, rheopolyglucine and albumin solutions in isovolemic regime. Albumin was given in quantities equivalent to 50-65% of the removed protein. RESULTS: Close correlation was observed between the expected and actual concentrations of total protein in 96 patients who have undergone 206 TPA procedures. In removal of up to 35% CPL protein deficiency is compensated by its mobilization from the deposits and due to protein-synthetizing function of the liver. In removal of 75% and more and in initial hypoproteinemia 50% of the protein should be replaced. CONCLUSION: It is confirmed that rheopolyglucin can be used for plasm replacement in TPA in patients with hyperproteinemia having no contraindications.