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Sickle cell anemia |
| Overview Symptoms Treatment Prevention |
| Alternative Names: |
| Anemia - sickle cell; Hemoglobin SS disease (Hb SS); Sickle cell disease |
| Treatment: |
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Patients with sickle cell disease need certain treatment and follow-up even when not having a painful crisis. Supplementation with folic acid, an essential element in producing cells, is required because of the rapid red blood cell turnover. Bacterial infections in children are common and antibiotics and vaccines are given to prevent this complication. Eye examinations by an ophthalmologist are important because of the risk of damage to the retina. Treatment for sickle cell disease usually focuses on symptoms. While bone marrow transplant can be curative, this therapy is indicated in only a minority of patients, predominantly because of the high risk of the procedure and difficulty in finding suitable donors. Therefore, the purpose of therapy is to manage and control symptoms resulting from crises and to try to limit the frequency of crises. During a sickle crisis, certain therapies may be necessary. Painful episodes are treated with analgesics and adequate liquid intake. Treatment of pain with adequate analgesics is critical. Non-narcotic medications may be effective, but some patients will require narcotics. Despite common belief to the contrary, narcotic addiction is not more frequent in patients with sickle cell disease than in other chronic pain patients. Additional treatments include: antibiotics for infection; partial exchange transfusion for acute chest syndrome; potentially partial exchange transfusions or surgery for neurological events, such as strokes, dialysis, or kidney transplant for kidney disease, irrigation or surgery for priapism, surgery for eye problems; hip replacement for avascular necrosis of the hip (death of the joint); gallbladder removal (if there is significant gallstone disease); wound care, zinc oxide, or surgery for leg ulcers; drug rehabilitation and counseling for the psychosocial complications. Hydroxyurea (Hydrea) was found to help some patients by reducing the frequency of painful crises and episodes of acute chest syndrome and decreasing the need for blood transfusions. There has been some concern about the possibility of this drug causing leukemia, but as yet there are no definitive data that Hydrea causes leukemia in sickle cell patients. Newer drugs are being developed to manage sickle cell anemia. Some of these agents work by trying to induce the body to produce more fetal hemoglobin (therefore decreasing the amount of sickling) or by increasing the binding of oxygen to sickle cells. But as yet, there are no other widely used drugs that are available for treatment. Bone marrow transplants are currently the only potential cure for sickle cell anemia. In this treatment the patient's bone marrow (which makes the sickled red blood cells) is replaced with bone marrow from another individual without sickle cell disease. However, it is difficult to find the right bone marrow donor, and the drugs needed to make the transplant possible are highly toxic. Also, bone marrow transplants are much more expensive than other treatments. Gene therapy (replacing the Hemoglobin S with a normal Hemoglobin A) may be the ideal treatment, but it has proven to be very difficult in humans. Parents whose children have sickle cell should encourage their children to lead normal lives. However, in order to decrease the occurrence of sickle cell crises, consider the following precautions: To prevent tissue deoxygenation, avoid the following:
To promote proper hydration:
To avoid sources of infection:
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| Support Groups: |
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Sickle cell anemia, like other chronic, life-threatening diseases, can cause great stress to the patient and family members. Joining a support group, where members share common experiences and problems, can relieve this stress. See sickle cell anemia - support group. |
| Expectations (prognosis): |
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In the past, death from organ failure often occurred between the ages of 20 and 40 in most sickle-cell patients. More recently, because of better understanding and management of the disease, patients live into their forties and fifties. Causes of death include organ failure and infection. Some people with the disease experience minor, brief, and infrequent episodes. Others experience severe, prolonged, and frequent episodes resulting in many complications. |
| Complications: |
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| Calling your health care provider: |
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Call your health care provider if acute painful crises occur or at the first sign of any infection. |
Red blood cells, sickle cell |
Red blood cells, normal |
Red blood cells, multiple sickle cells |
Red blood cells, sickle cells |
Red blood cells, sickle and pappenheimer |
Formed elements of blood |
Blood cells |
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