[Value of immunological studies in various forms of cardiomyopathy]

Immunologic status of 97 patients with dilating cardiomyopathy (DCMP) and 52 patients with hypertrophic cardiomyopathy (HCMP) was studied; total amount of T-lymphocytes as well as the amount of T-active lymphocytes and B-lymphocytes in the test of E- and EAC-rosette formation, subpopulations of T-lymphocytes (T mu, T g in the EA-rosette formation reaction were determined. HLA-typing in the microlymphocytes toxic test was performed. It was determined that the amount of B- and T-lymphocytes as well as the amount of T mu- and Tg-lymphocytes in patients with HCMP does not practically differ from that in normal subjects. Antigens 27, DR1 and DR4 were proved to be HLA-markers of HCMP. Reliable decrease in the amount of T mu and Tg cells as well as NK cells in patients with DCMP compared to that in normal subjects and patients with HCMP was observed. The study of HLA-antigens distribution in patients with DCMP revealed greater prevalence of DR1 and DR4 antigens.