Immunologic examination was done in 26 patients on to 20 years after posttraumatic splenectomy at the age of 3 to 6 years of life. Immunologic parameters used were: concentration of IgG, IgA, IgM, isoagglutinins, heterophila antibodies, agglutinins against staphylococci E. coli and pertussis, serum opsonins for E. coli and pneumococci, serum haemolytic complement activity, C3C4, B- and T- subpopulations of lymphocytes, inhibition migration of mononnuclear cells with E. coli. Pathologic susceptibility to infections was not observed clinically. IgM, E. coli agglutinins and E. coli opsonins were significantly lower in the postsplenectomy group than in controls.
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