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Hemolytic Anemia in Children

What is hemolytic anemia in children?

The hemolytic anemias are a group of disorders in which the red blood cells are destroyed faster than the bone marrow can make them. The term for destruction of red blood cells is hemolysis.

What causes hemolytic anemia in children?

Hemolytic anemia may have intrinsic or extrinsic causes.

  • Intrinsic. This is when the destruction of red blood cells is due to a flaw within the red blood cells. This type is often inherited. It includes sickle cell anemia, thalassemia, or erythrocytosis. These conditions produce red blood cells that do not live as long as normal red blood cells.
  • Extrinsic. This is when the destruction of red blood cells is from a cause outside of the cells. Some of the causes of extrinsic hemolytic anemia, also called autoimmune hemolytic anemia, are:
    • Infections. From bacteria or viruses.
    • Medicines. Antibiotics like penicillin or sulfanomides, medicines for malaria, or acetaminophen.
    • Cancers. Leukemia, lymphoma, or other tumors.
    • Autoimmune disorders. Systemic lupus erythematous (SLE or lupus), rheumatoid arthritis, Wiskott-Aldrich syndrome, or ulcerative colitis.
    • Hypersplenism. A condition in which the spleen destroys more red blood cells than normal.

Some types of extrinsic hemolytic anemia are temporary and resolve over several months. Other types can become chronic with periods of remissions and recurrence.

What are the symptoms of hemolytic anemia?

These are the most common symptoms of hemolytic anemia:

  • Pale skin
  • Jaundice, or yellowing of the skin and eyes
  • Dark-colored urine
  • Fever
  • Weakness
  • Dizziness
  • Confusion
  • Intolerance to physical activity
  • Enlargement of the spleen and liver
  • Fast heart beat
  • Heart murmur

The symptoms of hemolytic anemia may look like other health problems. Always check with your child's doctor for a diagnosis.

How is hemolytic anemia diagnosed?

Your child’s healthcare provider may suspect hemolytic anemia from child's medical history and a physical exam. Your child may have these tests:

  • Hemoglobin and hematocrit. It measures the amount of hemoglobin and red blood cells in the blood.
  • Complete blood count, or CBC. This test checks the red and white blood cells, blood clotting cells (platelets), and sometimes, young red blood cells (reticulocytes). It includes hemoglobin and hematocrit and more details about the red blood cells.
  • Peripheral smear. A small sample of blood is viewed under a microscope. Blood cells are checked to see if they look normal or not.
  • Other blood tests. These tests will check lactate dehydrogenase, bilirubin, haptoglobin, and certain antibodies.
  • Urine tests. For example, to check for hemoglobin from red blood cells breaking down.
  • Bone marrow aspiration, biopsy, or both. A procedure in which a small amount of bone marrow fluid (aspiration), solid bone marrow tissue (called a core biopsy) often from the hip bones, or both are checked for the number, size, and maturity of blood cells. This test may also look for abnormal cells.

How is hemolytic anemia treated?

Your child’s healthcare provider will figure out the best treatment based on:

  • How old your child is
  • His or her overall health and medical history
  • How sick he or she is
  • How well your child can handle certain medications, procedures, or therapies
  • How long the condition is expected to last
  • Your opinion or preference

A child with hemolytic anemia is often treated by a hematologist, an expert in blood disorders. The treatment for hemolytic anemia will vary depending on the cause of the illness and how severe the anemia is. Some children do not need treatment. For those that do, treatment may include:

  • Blood transfusions
  • Corticosteroid or steroid medications
  • Intravenous immune globulin (IVIg)
  • Rituximab, a drugsto control the immune system
  • Antibiotics to treat the infection if that is the underlying cause
  • Other medications, depending on the type of hemolytic anemia

In some children, who do not respond to first-line therapy, these treatments may be needed:

  • Splenectomy. Surgical removal of the spleen.
  • Immunosuppressive therapy. Use of other drugs to control the immune system.
  • Plasmapheresis. Removal of antibodies from the blood that are destroying red blood cells.
  • Stem cell transplant. Damaged bone marrow cells are replaced with donor bone marrow.

What are the complications of hemolytic anemia?

Complications depend on the cause of the hemolytic anemia and include:

  • Side effects of medicines. For example, the increased risk of infection with corticosteroids.
  • Gallstones or stones in the gallbladder
  • Blood clots and pulmonary emboli (blood clots in the lungs)
  • Kidney failure
  • Shock
  • Heart failure

How is hemolytic anemia managed?

Managing hemolytic anemia depends on how severe the symptoms are. Children with mild symptoms will have regular blood checks.

Managing children with more severe symptoms is more involved. These children will also have their blood checked regularly. They may have trouble with daily activities due to their symptoms or treatment. They should also avoid people who are sick, if taking medicine that increases the chance of infection.

When should I call my child's healthcare provider?

Call your child's healthcare provider if your child's behavior changes. For example, your child may not be able to be as active as usual. Also call your child's provider if your child has yellowing of the skin, dark urine, or a fever.

Key points about hemolytic anemia in children

  • Hemolytic anemias are a group of conditions in which red blood cells are destroyed.
  • Hemolytic anemia may be an inherited condition or it may be from autoimmune conditions, infections, cancers, or medications.
  • Many children do not need treatment. If they do, common treatments are blood transfusions and steroid and other medications.

Next steps

Tips to help you get the most from a visit to your child’s health care provider:
  • Before your visit, write down questions you want answered.
  • At the visit, write down the names of new medicines, treatments, or tests, and any new instructions your provider gives you for your child.
  • If your child has a follow-up appointment, write down the date, time, and purpose for that visit.
  • Know how you can contact your child’s provider after office hours. This is important if your child becomes ill and you have questions or need advice.
Hemolytic Anemia in Children - WellSpan Health

Online Medical Reviewer: Freeborn, Donna, PhD, CNM, FNP
Online Medical Reviewer: Holloway, Beth, RN, M.Ed.
Last Review Date: 2015-02-19T00:00:00
Last Modified Date: 2015-11-17T00:00:00
Published Date: 2015-11-17T00:00:00
Last Review Date: 2007-03-30T00:00:00
© 2016 WellSpan Health. All Rights Reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

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