Apheresis is in blood components separators used to remove abundant or pathological blood components or to replace them with healthy ones. Erythrocytapheresis is an up-to-date, efficient and selective alternative of venepuncture. In our country it is used especially for treatment of abundant erythrocytes in polycythemia vera and secondary polyglobulias where its correct use leads both to significant symptomatic relief and erosion of pathogenetic chain and to a reduction of over-production of erythrocytes.

        Key words: Erythrocytapheresis - Secondary polyglobulia - Polycythemia vera