A bone marrow transplant is a procedure to replace diseased or
destroyed bone marrow with healthy bone marrow stem cells. Bone
marrow is the soft, fatty tissue inside the bones. The bone marrow
produces blood cells. Stem cells are immature cells in the bone
marrow that give rise to all of the different blood cells. Before
the transplant process : chemotherapy, radiation, or both may be
given. This may be done in 2 ways:
- 1.Ablative (myeloablative) treatment- High-dose
chemotherapy, radiation or both are given to kill any cancer
cells. This also kills all healthy bone marrow that remains and
allows new stem cells to grow in the bone marrow.
- 2.Reduced intensity treatment also called a mini
transplant. Lower doses of chemotherapy and radiation are given
before a transplant. This allows older people and those with
other health problems to have a transplant.