Table of Contents
- Overview
- Risks
- Recovery
- Prevention
- Images
A bone marrow transplant is a procedure to replace damaged or destroyed bone marrow with healthy bone marrow stem cells.
Bone marrow is the soft, fatty tissue inside your bones. Stem cells are immature cells in the bone marrow that give rise to all of your blood cells.
Alternative Names
Transplant - bone marrow; Stem cell transplant; Hematopoietic stem cell transplant; Reduced intensity, nonmyeloablative transplant; Mini transplant; Allogenic bone marrow transplant; Autologous bone marrow transplant; Umbilical cord blood transplant
Description
There are three kinds of bone marrow transplants:
- Autologous bone marrow transplant: "Auto" means "self." Stem cells are removed from you before you receive high-dose chemotherapy or radiation treatment. After these treatments are done, your stems cells are put back in your body. This is called a "rescue" transplant.
- Allogeneic bone marrow transplant: "Allo" means "other." Stem cells are removed from another person, called a donor. Most times, the donor must have the same genetic makeup as the patient, so that their blood is a "match" to yours. Special blood tests are done to determine if a donor is a good match for you. A brother or sister is most likely to be a good match. However, sometimes parents, children, and other relatives may be good matches. Donors who are not related to the patient may be found through national bone marrow registries.
- Umbilical cord blood transplant: Stem cells are removed from a newborn baby's umbilical cord immediately after being born. The stem cells are stored until they are needed for a transplant. Umbilical cord blood cells are so immature, there is less of a concern that they will not match.
Before the transplant, chemotherapy, radiation, or both may be given. This may be done in two ways:
- Ablative (myeloablative) treatment: High-dose chemotherapy, radiation, or both are given to kill any cancer cells. This allows new stem cells to grow in the bone marrow.
- Reduced intensity (nonmyeloablative) treatment, also called a mini transplant: Today, some patients are getting lower doses of chemotherapy and radiation before a bone marrow transplant.
A stem cell transplant is done after chemotherapy and radiation is complete. The stem cells are delivered into your bloodstream through a tube called a central venous catheter. The process is similar to getting a blood transfusion. The stem cells travel through the blood into the bone marrow. Usually, no surgery is required.
Review Date: 03/17/2011
Reviewed By: Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program,
Massachusetts General Hospital. Also reviewed by David Zieve, MD,
MHA, Medical Director, A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)
