A bone marrow transplant is a procedure that infuses healthy blood stem cells into your body to replace your damaged or diseased bone marrow. A bone marrow transplant is also called a stem cell transplant.
A bone marrow transplant may be necessary if your bone marrow stops working and doesn't produce enough healthy blood cells.
Bone marrow transplants may use cells from your own body (autologous transplant) or from a donor (allogeneic transplant).
At Mayo Clinic, doctors who specialize in blood diseases (hematologists) form a multidisciplinary team with other experts to provide personalized, whole-person care to adults and children undergoing bone marrow transplants.
Your transplant team may include hematologists, cancer specialists (oncologists), mental health specialists (psychologists and psychiatrists), a bone marrow transplant scheduling coordinator, transfusion medicine nurses, trained and specialized nurses, physician assistants, social workers, a nurse coordinator, a clinical nurse specialist, a dietitian, pharmacists, a chaplain and a child life specialist for children undergoing bone marrow transplant.
Children and adolescents undergoing bone marrow transplants receive care at the Children's Center at Mayo Clinic's campus in Minnesota. At Mayo Clinic's campus in Arizona, pediatric experts collaborate with the Phoenix Children's Hospital to provide care to young patients. Together the two oversee a single bone marrow transplant program for children. Pediatric patients receive care from Mayo Clinic specialists in Florida through a partnership with Nemours Children's Specialty Care and Wolfson Children's Hospital.
Mayo Clinic's approach
A bone marrow transplant may be used to:
Bone marrow transplants can benefit people with a variety of both cancerous (malignant) and noncancerous (benign) diseases, including:
Bone marrow is the spongy tissue inside some bones. Its job is to produce blood cells. If your bone marrow isn't functioning properly because of cancer or another disease, you may receive a stem cell transplant.
To prepare for a stem cell transplant, you receive chemotherapy to kill the diseased cells and malfunctioning bone marrow. Then, transplanted blood stem cells are put into your bloodstream. The transplanted stem cells find their way to your marrow, where ideally they begin producing new, healthy blood cells.
Mayo Clinic doctors have extensive experience performing bone marrow transplants for adults and children with a variety of cancerous and noncancerous diseases. Each year, more than 700 people undergo bone marrow transplants at Mayo Clinic.
The first bone marrow transplant at Mayo Clinic occurred in 1963. Bone marrow transplant procedures are performed by doctors at Mayo Clinic in Rochester, Minn., Mayo Clinic in Jacksonville, Fla., and Mayo Clinic in Scottsdale, Ariz., which are ranked among the Best Hospitals for cancer by U.S. News & World Report.
The long history of bone marrow transplants performed at Mayo Clinic means that doctors are prepared with the knowledge and resources to provide you with expert, personalized care.
A bone marrow transplant poses many risks of complications, some potentially fatal.
The risk can depend on many factors, including the type of disease or condition, the type of transplant, and the age and health of the person receiving the transplant.
Although some people experience minimal problems with a bone marrow transplant, others may develop complications that may require treatment or hospitalization. Some complications could even be life-threatening.
Complications that can arise with a bone marrow transplant include:
Your doctor can explain your risk of complications from a bone marrow transplant. Together you can weigh the risks and benefits to decide whether a bone marrow transplant is right for you.
If you receive a transplant that uses stem cells from a donor (allogeneic transplant), you may be at risk of developing graft-versus-host disease (GVHD). This condition occurs when the donor stem cells that make up your new immune system see your body's tissues and organs as something foreign and attack them.
Many people who have an allogeneic transplant get GVHD at some point. The risk of GVHD is a bit greater if the stem cells come from an unrelated donor, but it can happen to anyone who gets a bone marrow transplant from a donor.
GVHD may happen at any time after your transplant. However, it's more common after your bone marrow has started to make healthy cells.
There are two kinds of GVHD: acute and chronic. Acute GVHD usually happens earlier, during the first months after your transplant. It typically affects your skin, digestive tract or liver. Chronic GVHD typically develops later and can affect many organs.
Chronic GVHD signs and symptoms include:
You'll undergo a series of tests and procedures to assess your general health and the status of your condition, and to ensure that you're physically prepared for the transplant. The evaluation may take several days or more.
In addition, a surgeon or radiologist will implant a long thin tube (intravenous catheter) into a large vein in your chest or neck. The catheter, often called a central line, usually remains in place for the duration of your treatment. Your transplant team will use the central line to infuse the transplanted stem cells and other medications and blood products into your body.
If a transplant using your own stem cells (autologous transplant) is planned, you'll undergo a procedure called apheresis (af-uh-REE-sis) to collect blood stem cells.
Before apheresis, you'll receive daily injections of growth factor to increase stem cell production and move stem cells into your circulating blood so that they can be collected.
During apheresis, blood is drawn from a vein and circulated through a machine. The machine separates your blood into different parts, including stem cells. These stem cells are collected and frozen for future use in the transplant. The remaining blood is returned to your body.
If a transplant using stem cells from a donor (allogeneic transplant) is planned, you will need a donor. When you have a donor, stem cells are gathered from that person for the transplant. This process is often called a stem cell harvest or bone marrow harvest. Stem cells can come from your donor's blood or bone marrow. Your transplant team decides which is better for you based on your situation.
Another type of allogeneic transplant uses stem cells from the blood of umbilical cords (cord blood transplant). Mothers can choose to donate umbilical cords after their babies' births. The blood from these cords is frozen and stored in a cord blood bank until needed for a bone marrow transplant.
After you complete your pretransplant tests and procedures, you begin a process known as conditioning. During conditioning, you'll undergo chemotherapy and possibly radiation to:
The type of conditioning process you receive depends on a number of factors, including your disease, overall health and the type of transplant planned. You may have both chemotherapy and radiation or just one of these treatments as part of your conditioning treatment.
Side effects of the conditioning process can include:
You may be able to take medications or other measures to reduce such side effects.
Based on your age and health history, your doctor may recommend lower doses or different types of chemotherapy or radiation for your conditioning treatment. This is called reduced-intensity conditioning.
Reduced-intensity conditioning kills some cancer cells and somewhat suppresses your immune system. Then, the donor's cells are infused into your body. Donor cells replace cells in your bone marrow over time. Immune factors in the donor cells may then fight your cancer cells.
Your bone marrow transplant occurs after you complete the conditioning process. On the day of your transplant, called day zero, stem cells are infused into your body through your central line.
The transplant infusion is painless. You are awake during the procedure.
The transplanted stem cells make their way to your bone marrow, where they begin creating new blood cells. It can take a few weeks for new blood cells to be produced and for your blood counts to begin recovering.
Bone marrow or blood stem cells that have been frozen and thawed contain a preservative that protects the cells. Just before the transplant, you may receive medications to reduce the side effects the preservative may cause. You'll also likely be given IV fluids (hydration) before and after your transplant to help rid your body of the preservative.
Side effects of the preservative may include:
Not everyone experiences side effects from the preservative, and for some people those side effects are minimal.
When the new stem cells enter your body, they begin to travel through your body and to your bone marrow. In time, they multiply and begin to make new, healthy blood cells. This is called engraftment. It usually takes several weeks before the number of blood cells in your body starts to return to normal. In some people, it may take longer.
In the days and weeks after your bone marrow transplant, you'll have blood tests and other tests to monitor your condition. You may need medicine to manage complications, such as nausea and diarrhea.
After your bone marrow transplant, you'll remain under close medical care. If you're experiencing infections or other complications, you may need to stay in the hospital for several days or sometimes longer. Depending on the type of transplant and the risk of complications, you'll need to remain near the hospital for several weeks to months to allow close monitoring.
You may also need periodic transfusions of red blood cells and platelets until your bone marrow begins producing enough of those cells on its own.
You may be at greater risk of infections or other complications for months to years after your transplant.
A bone marrow transplant can cure some diseases and put others into remission. Goals of a bone marrow transplant depend on your individual situation, but usually include controlling or curing your disease, extending your life, and improving your quality of life.
Some people complete bone marrow transplantation with few side effects and complications. Others experience numerous challenging problems, both short and long term. The severity of side effects and the success of the transplant vary from person to person and sometimes can be difficult to predict before the transplant.
It can be discouraging if significant challenges arise during the transplant process. However, it is sometimes helpful to remember that there are many survivors who also experienced some very difficult days during the transplant process but ultimately had successful transplants and have returned to normal activities with a good quality of life.
Explore Mayo Clinic studies testing new treatments, interventions and tests as a means to prevent, detect, treat or manage this disease.
Mayo Clinic doctors and scientists are involved in cutting-edge research that allows them to apply the latest advances to patient care.
At Mayo Clinic, some bone marrow transplants are performed as hospital-based outpatient procedures, which reduces the amount of time you'll need to spend in the hospital.
Living with a bone marrow transplant or waiting for a bone marrow transplant can be difficult, and it's normal to have fears and concerns.
Having support from your friends and family can be helpful. Also, you and your family may benefit from joining a support group of people who understand what you're going through and who can provide support. Support groups offer a place for you and your family to share fears, concerns, difficulties and successes with people who have had similar experiences. You may meet people who have already had a transplant or who are waiting for a transplant.
To learn about transplant support groups in your community, ask your transplant team or social worker for information. Also, several support groups are offered at Mayo Clinic in Arizona, Florida and Minnesota.
Mayo Clinic researchers study medications and treatments for people who have had bone marrow transplants, including new medications to help you stay healthy after your bone marrow transplant.
If your bone marrow transplant is using stem cells from a donor (allogeneic transplant), you may be at risk of graft-versus-host disease. This condition occurs when a donor's transplanted stem cells attack the recipient's body. Doctors may prescribe medications to help prevent graft-versus-host disease and reduce your immune system's reaction (immunosuppressive medications).
After your transplant, it will take time for your immune system to recover. You may be given antibiotics to prevent infections. You may also be prescribed antifungal, antibacterial or antiviral medications. Doctors continue to study and develop several new medications, including new antifungal medications, antibacterial medications, antiviral medications and immunosuppressive medications.
After your bone marrow transplant, you may need to adjust your diet to stay healthy and to prevent excessive weight gain. Maintaining a healthy weight can help prevent high blood pressure, high cholesterol and other negative health effects.
Your nutrition specialist (dietitian) and other members of your transplant team will work with you to create a healthy-eating plan that meets your needs and complements your lifestyle. Your dietitian may also give you food suggestions to control side effects of chemotherapy and radiation, such as nausea.
Your dietitian will also provide you with healthy food options and ideas to use in your eating plan. Your dietitian's recommendations may include:
After your bone marrow transplant, you may make exercise and physical activity a regular part of your life to continue to improve your health and fitness. Exercising regularly helps you control your weight, strengthen your bones, increase your endurance, strengthen your muscles and keep your heart healthy.
Your treatment team may work with you to set up a routine exercise program to meet your needs. You may perform exercises daily, such as walking and other activities. As you recover, you can slowly increase your physical activity.
Jan. 24, 2019
Bone marrow transplant - Mayo Clinic
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