Hemoglobin Sickle C Disease

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THE CHILD WITH HEMOGLOBIN SICKLE C DISEASE

Hemoglobin sickle C disease is a "mild" form of sickle cell anemia. Your child's red blood cells (RBC's) contain two abnormal hemoglobins, called hemoglobin S and hemoglobin C.

Hemoglobin is the substance in the RBC's which carries oxygen to all parts of the body. Instead of appearing round (donut-shaped), your child's RBC's are somewhat misshapen, and some even appear like the sickle-shaped cells found in sickle cell anemia. Others are folded or football-shaped.  

sickled cells and normal cells

HOW HEMOGLOBIN SICKLE C DISEASE IS INHERITED

HOW HEMOGLOBIN SICKLE C DISEASE IS INHERITED
Mother with sickle trait diagram of 1 in 4 chance of inheriting Hemoglobin Sickle C disease Father with C trait


When one person has sickle trait and the other parent has C trait, each baby has a 1 in 4 chance of inheriting Sickle C disease.


PROBLEMS SEEN IN CHILDREN WITH SICKLE C DISEASE

Anemia

Your child will always have a slight decrease in his blood count - this is called anemia. Except for occasionally causing tiredness and or weakness in some children, the mild anemia usually does not cause any problems. 

Pain

The red blood cells of Sickle C disease are rigid and stiff and many sometimes "clog up" the small vessels in the bones and other parts of the body. Because enough oxygen cannot get into the bones, this can cause pain. Painful episodes occur most commonly in the arms, legs, stomach and back. These episodes can last for hours, days, or up to a week. The pain can vary from mild to moderate to severe. The location, length, and degree of pain, can vary from episode to episode. How often these crises occur is variable. Some children with SC Disease have no crises at all, but most will have a few each year. 

Pneumonia and Other Infections

A child with SC disease has an increased risk of getting certain infections, particularly pneumonis. The abnormal RBC's can "clog up" in the lungs and increase the risk of infection there. This is called chest syndrome. Symptoms to watch for include: fever, fast breathing, trouble breathing, retractions (ribs "suck in" when breathing), very congested cough, and chest pain. If these occur, your child needs to see a doctor immediately. 

Spleen

The spleen is normally a small organ located on the upper left side of the abdomen up under the rib cage. It acts as part of the body's defense system that fights infection by removing bacteria (germs) from the blood. Children with SC disease may have an enlarged (big) spleen but this does not happen until they are about 5 years or older. This big spleen usually does not cause any problems. Occasionally, teen-agers and/or adults may have pain over the spleen and a drop in the number of red blood cells - this is called a "spleen crisis."  

Eyes

Older children (over age 10 years) and adults with sickle C disease may develop damage to the retina in the back of the eye. This may cause blindness if it is not treated in time. Regular eye check-ups by an ophthalmologist (medical eye doctor) are necessary to diagnose and treat this problem in its early stages.  


For more information about the Newborn Screening Program please contact:
Texas Department of State Health Services
Newborn Screening Unit MC 1918
1100 West 49th Street
Austin, Texas 78756
Phone: 1-800-252-8023, ext. 3666 or
512/776-3666

Last updated June 20, 2011