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Immune status was investigated in 186 patients with chronic lymphoid leukaemia between January 2012 and March 2015. Incidences of infections and mortality were analysed in patients who did not receive prophylactic immunoglobulin therapy. Immunoglobulin G (IgG) levels were normal (7-17.8 g/L) or decreased in 62.37% and 35.48% of patients, respectively. We measured high immunoglobulin levels only in a few cases (2.15%). Immunoglobulin levels became increasingly lower in more advanced disease stages (Rai stages). The number of infections was inversely proportional to that. Hypogammaglobulinaemia proved to be more important than disease progression in terms of the development of infections. The most common infections were upper respiratory tract (33.07%) and sepsis (18.90%). Two months after chemotherapy, initially normal immunoglobulin levels decreased by an average of 21%, and at the same time the incidence of infections increased. The most common cause of death was sepsis: 30% occurred at low immunoglobulin levels, while 20% at normal immunoglobulin levels. According to literature, prophylactic immunoglobulin treatment is indicated in patients with chronic lymphoid leukaemia and immunodeficiency for decreasing both morbidity and mortality. According to recommendations in literature, replacement treatment must be administered in severe or moderately severe recurrent bacterial infections. Immunoglobulin prophylaxis may be provided as low dose (10 g), fix dose (18 g) or individually customized higher dose (300-400 mg/kg body weight) treatment. According to recommendations, higher dose immunoglobulin prophylaxis, administered every three weeks on six occasions, is more efficient when customized. With this dose, infection-free condition may be achieved in 50% of patients. Orv Hetil. 2019; 160(38): 1487-1494.

orvosi hetilap

A másodlagos hypogammaglobulinaemia, a fertőzések és a halálozás összefüggései és a preventív immunglobulin-pótlás szükségessége krónikus lymphoid leukaemiás betegekben