eMedicine Specialties > Hematology > Red Blood Cells and Disorders
Hemolytic Anemia: Treatment & Medication
Updated: Apr 27, 2009
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
- Multimedia
Treatment
Medical Care
More than 200 types of hemolytic anemia exist, and each type requires specific treatment. Therefore, only the aspects of medical care relevant to most cases of hemolytic anemia are discussed here.- Transfusion therapy
- Avoid transfusions unless absolutely necessary, but they may be essential for patients with angina or severely compromised cardiopulmonary status.
- Administer packed red blood cells slowly to avoid cardiac stress.
- In autoimmune hemolytic anemia (AIHA), type matching and cross-matching may be difficult. Use the least incompatible blood if transfusions are indicated. The risk of acute hemolysis of transfused blood is high, but the degree of the hemolysis is dependent on the rate of infusion. Slowly transfuse by administering half units of packed red blood cells to prevent rapid destruction of transfused blood.
- Iron overload from repeated transfusions for chronic anemia (eg, thalassemia or sickle cell disorder) can be treated with chelation therapy. A recent systematic review compared the oral iron chelator deferasirox with the oral chelator deferiprone and the traditional parenteral agent, deferoxamine.10
- Discontinuing medications
- Discontinue penicillin and other agents that can cause immune hemolysis and oxidant medication such as sulfa drugs (see Diet).
- Medications that can cause immune hemolysis include the following (see References for more complete lists):
- Penicillin
- Cephalothin
- Ampicillin
- Methicillin
- Quinine
- Quinidine
- Administer folic acid, because active hemolysis may consume folate and cause megaloblastosis.
- Corticosteroids are indicated in autoimmune hemolytic anemia.
- Intravenous immunoglobulin G (IVIG) has been used for patients with AIHA, but only a few patients have had treatment responses, and the response has been transient.
- Iron therapy
- This is indicated for patients with severe intravascular hemolysis in which persistent hemoglobinuria has caused substantial iron loss.
- Before iron is administered, document the iron deficiency by serum iron studies and, possibly, by assessing iron stores in bone marrow aspirates.
- Because iron stores increase in hemolysis, iron administration is generally contraindicated in hemolytic disorders, particularly those that require chronic transfusion support.
Surgical Care
- Splenectomy may be the first choice of treatment in some types of hemolytic anemia, such as hereditary spherocytosis.
- In other cases, such as in AIHA, splenectomy is recommended when other measures have failed.
- Splenectomy is usually not recommended in hemolytic disorders such as cold agglutinin hemolytic anemia.
- Immunize against infections with encapsulated organisms, such as Haemophilus influenzae and Streptococcus pneumoniae, as far in advance of the procedure as possible.
Consultations
- A hematology consultation helps in selecting appropriate diagnostic approaches and laboratory tests and assists in planning and monitoring therapy. Perform tests to identify hemolysis in an experienced laboratory that is selected by a hematologist.
- Consult a general surgeon if considering splenectomy.
Diet
- Fava beans can cause severe hemolysis in certain populations with the Mediterranean G6PD isoenzyme variant. These patients should avoid eating dishes with fava beans.
- Medications and chemicals that should be avoided in G6PD deficiency include the following (see References for more complete lists):
- Acetanilid
- Furazolidone
- Isobutyl nitrite
- Nalidixic acid
- Naphthalene
- Niridazole
Medication
The goals of pharmacotherapy are to reduce morbidity and to prevent complications in patients with hemolytic anemia.
Vitamins
Vitamins are essential for normal DNA synthesis and the formation of a number of coenzymes in many metabolic systems.
Folic acid (Folvite)
Cofactor for enzymes involved in production of red blood cells. Replenishes depleted folate stores consumed during chronic hemolysis.
Adult
In patients with folic acid deficiency: 50 mcg/d PO/IV for 2 d, followed by 2 mg PO twice a wk or 0.5-1 mg/d
In patients with chronic hemolysis:
Administer folic acid indefinitely.
Pediatric
<12 years: Not established
>12 years: 1 mg PO/IM/SC qd
Increase in seizure frequency and a decrease in subtherapeutic levels of phenytoin reported when used concurrently
Documented hypersensitivity; folic acid administration may cause neuropathy in patients with latent or overt pernicious anemia if these patients are not receiving vitamin B-12.
Pregnancy
C - Fetal risk revealed in studies in animals but not established or not studied in humans; may use if benefits outweigh risk to fetus
Precautions
Benzyl alcohol is a preservative in some products and is associated with fatal gasping syndrome in premature infants; resistance to treatment may occur in patients with alcoholism and deficiencies of other vitamins.
Corticosteroids
Corticosteroids have anti-inflammatory properties and cause profound and varied metabolic effects. These agents modify the immune response of the body to diverse stimuli.
Glucocorticoids, such as prednisone, are usually the first line of treatment in autoimmune hemolytic anemia (AIHA). Consult a hematologist to individualize therapy and determine whether other forms of therapy are indicated in the treatment of AIHA. Taper glucocorticoids very gradually to avoid a relapse of hemolysis.
Prednisone (Deltasone, Orasone, Sterapred)
Inhibits phagocytosis of antibody-covered red blood cells. Indicated in some hemolytic disorders such as AIHA.
Adult
1-1.5 mg/kg/d PO maintained for as many as 3-4 wk, or until response seen; if no response, consider other form of treatment
Pediatric
Individualize the pediatric dose because corticosteroids may affect growth; consult a pediatric hematologist to establish the dose of corticosteroids and determine whether other forms of therapy are needed.
Coadministration with estrogens may decrease prednisone clearance; concurrent use with digoxin may cause digitalis toxicity secondary to hypokalemia; phenobarbital, phenytoin, and rifampin may increase the metabolism of glucocorticoids (consider increasing the maintenance dose); monitor for hypokalemia with the coadministration of diuretics.
Documented hypersensitivity; viral infection; peptic ulcer disease; hepatic dysfunction; connective tissue infections; fungal or tubercular skin infections; GI disease
Pregnancy
B - Fetal risk not confirmed in studies in humans but has been shown in some studies in animals
Precautions
Abrupt discontinuation of glucocorticoids may cause adrenal crisis; hyperglycemia, edema, osteonecrosis, myopathy, peptic ulcer disease, hypokalemia, osteoporosis, euphoria, psychosis, myasthenia gravis, growth suppression, and infections may occur with glucocorticoid use.
More on Hemolytic Anemia |
| Overview: Hemolytic Anemia |
| Differential Diagnoses & Workup: Hemolytic Anemia |
Treatment & Medication: Hemolytic Anemia |
| Follow-up: Hemolytic Anemia |
| Multimedia: Hemolytic Anemia |
| References |
| Further Reading |
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References
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Further Reading
Related eMedicine Topics
- Anemia
- Disseminated Intravascular Coagulation
- Glucose-6-Phosphate Dehydrogenase Deficiency
- Iron Deficiency Anemia
- Spherocytosis, Hereditary
Clinical Trials
- ADAMTS13 in Thrombotic Thrombocytopenic Purpura
- Long Term Effects of Erythrocyte Lysis
- Natural History of Sickle Cell Disease and Other Hemolytic Disorders
- Treatment of Autoimmune Thrombocytopenia (AITP)
National Guidelines Clearinghouse
- Anemia in the long-term care setting. American Medical Directors Association - Professional Association. 2007. 28 pages. NGC:005655
- Management of alloimmunization during pregnancy. American College of Obstetricians and Gynecologists - Medical Specialty Society. 2006 Aug. 8 pages. NGC:005703
- Screening for Rh(D) incompatibility: recommendation statement. United States Preventive Services Task Force - Independent Expert Panel. 2004 Feb 24. 4 pages. NGC:003455
- Screening for sickle cell disease in newborns: U.S. Preventive Services Task Force recommendation statement. United States Preventive Services Task Force - Independent Expert Panel. 1996 (revised 2007). 10 pages. NGC:005908
Keywords
hemolytic anemia, autoimmune hemolytic anemia, anemia, hemolysis, microangiopathic anemia, premature erythrocyte destruction, hereditary hemoglobin abnormalities, glucose-6-phosphate dehydrogenase deficiency, G6PD deficiency, G-6-PD deficiency, hereditary spherocytosis, sickle cell anemia, sickle cell trait, sickle cell disease, AIHA, disseminated intravascular coagulation, DIC, hemolytic uremic syndrome, HUS, hemolytic-uremic syndrome, TTP, thrombotic thrombocytopenic purpura, defective prosthetic cardiac valves, parvovirus B19 infection
Treatment & Medication: Hemolytic Anemia