Sickle cell anemia Treatments and drugs – Mayo Clinic
Posted: October 29, 2015 at 11:46 am
Bone marrow transplant offers the only potential cure for sickle cell anemia. But finding a donor is difficult and the procedure has serious risks associated with it, including death.
As a result, treatment for sickle cell anemia is usually aimed at avoiding crises, relieving symptoms and preventing complications. If you have sickle cell anemia, you'll need to make regular visits to your doctor to check your red blood cell count and monitor your health. Treatments may include medications to reduce pain and prevent complications, blood transfusions and supplemental oxygen, as well as a bone marrow transplant.
Medications used to treat sickle cell anemia include:
Hydroxyurea (Droxia, Hydrea). When taken daily, hydroxyurea reduces the frequency of painful crises and may reduce the need for blood transfusions. Hydroxyurea seems to work by stimulating production of fetal hemoglobin a type of hemoglobin found in newborns that helps prevent the formation of sickle cells. Hydroxyurea increases your risk of infections, and there is some concern that long-term use of this drug may cause tumors or leukemia in certain people. However, this hasn't yet been seen in studies of the drug.
Hydroxyurea was initially used just for adults with severe sickle cell anemia. Studies on children have shown that the drug may prevent some of the serious complications associated with sickle cell anemia. But the long-term effects of the drug on children are still unknown. Your doctor can help you determine if this drug may be beneficial for you or your child.
Using a special ultrasound machine (transcranial), doctors can learn which children have a higher risk of stroke. This test can be used on children as young as 2 years, and those who are found to have a high risk of stroke are then treated with regular blood transfusions.
Childhood vaccinations are important for preventing disease in all children. But, these vaccinations are even more important for children with sickle cell anemia, because infections can be severe in children with sickle cell anemia. Your doctor will make sure your child receives all of the recommended childhood vaccinations. Vaccinations, such as the pneumococcal vaccine and the annual flu shot, are also important for adults with sickle cell anemia.
In a red blood cell transfusion, red blood cells are removed from a supply of donated blood. These donated cells are then given intravenously to a person with sickle cell anemia.
Blood transfusions increase the number of normal red blood cells in circulation, helping to relieve anemia. In children with sickle cell anemia at high risk of stroke, regular blood transfusions can decrease their risk of stroke.
Blood transfusions carry some risk. Blood contains iron. Regular blood transfusions cause an excess amount of iron to build up in your body. Because excess iron can damage your heart, liver and other organs, people who undergo regular transfusions may need treatment to reduce iron levels. Deferasirox (Exjade) is an oral medication that can reduce excess iron levels.
Breathing supplemental oxygen through a breathing mask adds oxygen to your blood and helps you breathe easier. It may be helpful if you have acute chest syndrome or a sickle cell crisis.
A stem cell transplant, also called a bone marrow transplant, involves replacing bone marrow affected by sickle cell anemia with healthy bone marrow from a donor. Because of the risks associated with a stem cell transplant, the procedure is recommended only for people who have significant symptoms and problems from sickle cell anemia.
If a donor is found, the diseased bone marrow in the person with sickle cell anemia is first depleted with radiation or chemotherapy. Healthy stem cells from the donor are filtered from the blood. The healthy stem cells are injected intravenously into the bloodstream of the person with sickle cell anemia, where they migrate to the bone marrow cavities and begin generating new blood cells. The procedure requires a lengthy hospital stay. After the transplant, you'll receive drugs to help prevent rejection of the donated stem cells.
A stem cell transplant carries risks. There's a chance that your body may reject the transplant, leading to life-threatening complications. In addition, not everyone is a candidate for transplantation or can find a suitable donor.
Doctors treat most complications of sickle cell anemia as they occur. Treatment may include antibiotics, vitamins, blood transfusions, pain-relieving medicines, other medications and possibly surgery, such as to correct vision problems or to remove a damaged spleen.
Scientists are studying new treatments for sickle cell anemia, including:
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Sickle cell anemia Treatments and drugs - Mayo Clinic
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