How should my son be treated for leukemia?

Patient's question:

The child has been confirmed to have leukemia for over 8 months. Currently, there are no major symptoms, and they are being treated at the First People's Hospital of Yulin City.

Doctor's answer:

1. Principles
Joint chemotherapy is the core of leukemia treatment and is implemented throughout the entire course of therapy. Its purpose is to eliminate leukemia cells as much as possible, clear residual leukemia cells in the body, prevent the formation of drug resistance, restore bone marrow hematopoietic function, achieve complete remission as quickly as possible, minimize damage to normal tissues, and reduce late-term sequelae. The main principle of ALL chemotherapy is to select treatment regimens of different intensities based on clinical risk stratification. It emphasizes early, continuous, rational, and intensive chemotherapy, as well as long-term sustained chemotherapy, while also administering intrathecal chemotherapy to prevent the occurrence of CNSL. During the chemotherapy process, close monitoring should be conducted, effective symptomatic treatment and prevention and treatment of complications should be carried out, including tumor embolism, tumor lysis syndrome, water and electrolyte balance, anemia, bleeding, DIC, the maintenance of normal function of various organs, especially the heart, liver, and kidneys, and the prevention and treatment of various infections and toxic reactions of chemotherapeutic drugs. Allogeneic hematopoietic stem cell transplantation is suitable for refractory and recurrent cases and should be performed after CR.
2. ALL Chemotherapy
It includes induction therapy, consolidation therapy after remission, prophylactic treatment for CNSL, re-induction therapy, maintenance therapy, and regular intensive therapy.
(1) The criteria for leukemia remission are:
① Complete remission (CR):
A. Clinically, there are no signs of anemia, bleeding, infection, or leukemia cell infiltration.
B. Blood count: Hemoglobin > 90 g/L, normal or decreased white blood cells, no immature cells in the differential count, platelets > 100 × 10^9/L.
C. Bone marrow findings: Myeloblasts plus promyelocytes (or immature cells