[Efficacy of Decitabine Combined with Preexcitation Regimen in Treatment of Newly Diagnosed AML Patients Who Did not Respond to Initial Standard Induction Chemotherapy].

To investigate the efficacy of decitabine combined with preexcitation regimen in the treatment of newly diagnosed acute myeloid leukemia (AML) patients who have not been relieved by the first standard induction chemotherapy and its influence on the relative content of regulatory T lymphocytes (Tregs).