Newly diagnosed immune thrombozytopenia--German guideline concerning initial diagnosis and therapy.

Newly diagnosed immune thrombocytopenia occurs in 3-5/100 000 children < 14 y per year. Bleeding symptoms do not correlate with platelet count. Diagnostic approach includes history, clinical examination and analysis of blood count with blood smear by experienced hematologist. Additional investigations are only necessary in atypical cases and cases with additional symptoms or inadequate response to therapy. The decision to treat ITP should be made cautiously and not entirely be based on the platelet count. Decisions based on clinical symptoms and progress of the illness are more reasonable. There is no evidence, that therapy at the time of diagnosis influences the further course and can avoid intracerebral hemorrhage. © Georg Thieme Verlag KG Stuttgart · New York.