What is the difference between cryoglobulinemia and cold agglutinin disease?

In cryoglobulinemia, antibodies accumulate and block blood vessels. In cold agglutinin disease, antibodies (different from those in cryoglobulinemia) attack and kill red blood cells, which then accumulate and block blood vessels.

What causes cold autoimmune hemolytic anemia?

Cold autoimmune hemolytic anemia caused by cold-reacting antibodies. Autoantibodies that bind to the erythrocyte membrane leading to premature erythrocyte destruction (hemolysis) characterize autoimmune hemolytic anemia.

What are features of cold agglutinin syndrome?

Cold agglutinin disease (CAD) is a condition that makes your body’s immune system attack your red blood cells and destroy them. It’s triggered by cold temperatures, and it can cause problems that range from dizziness to heart failure. It’s also called cold antibody hemolytic anemia.

Does cryoglobulinemia go away?

As hepatitis C goes away, the cryoglobulins will disappear in about one half of all people over the next 12 months. Your provider will continue to monitor the cryoglobulins after treatment. Severe cryoglobulinemia vasculitis involves vital organs or large areas of skin.

What triggers cold agglutinin?

Causes of polyclonal secondary cold agglutinin disease include the following: Mycoplasma infections – M pneumoniae. Viral infections – Infectious mononucleosis due to Epstein-Barr virus (EBV) or CMV. Viral infections, other – Mumps, varicella, rubella, adenovirus, HIV, influenza, hepatitis C.

Why would a patient with a positive cold agglutinin test be retested?

A positive titer may mean that the person tested has cold agglutinin disease. Cold agglutinin disease may be primary or secondary, induced by some other disease or condition such as: Mycoplasma pneumoniae infections—up to 75% of those affected will have increased cold agglutinins.

How is cold agglutinin disease diagnosed?

In most cases, the diagnosis is based on evidence of hemolytic anemia (from symptoms and/or blood tests). A person may also be physically examined for spleen or liver enlargement. An antiglobulin test (called the Coombs test) may be performed to determine the presence of a specific type of antibody .

Is cryoglobulinemia serious?

If you have cryoglobulinemia (kry-o-glob-u-lih-NEE-me-uh), these proteins may clump together at temperatures below 98.6 F (37 C). These gelatinous protein clumps can impede your blood circulation, which can damage your skin, joints, nerves and organs — particularly your kidneys and liver.

How is cryoglobulinemia related to cold agglutinin?

Cryoglobulinemia, cryoglobulinaemia, or cryoglobulinemic disease, is a medical condition in which the blood contains large amounts of cryoglobulins – proteins (mostly immunoglobulins themselves) that become insoluble at reduced temperatures. This should be contrasted with cold agglutinins, which cause agglutination of red blood cells.

What does it mean to have cryoglobulinemia in your blood?

Cryoglobulinemia. Cryoglobulinemia, cryoglobulinaemia, or cryoglobulinemic disease, is a medical condition in which the blood contains large amounts of cryoglobulins – proteins (mostly immunoglobulins themselves) that become insoluble at reduced temperatures. This should be contrasted with cold agglutinins,…

What is the clinical syndrome of cryoglobulinemic vasculitis?

The vascular deposition of these types of cryoglobulin-containing immune complexes and complement can cause a clinical syndrome of cutaneous small-vessel vasculitis characterized by systemic vasculitis and inflammation termed cryoglobulinemic vasculitis.

Who are the authors of the book cryoglobulinemia?

Author Morie A. Gertz served as an advisor or consultant for Celgene, Millennium Pharmaceuticals, Onyx Pharmaceuticals, Novartis, GlaxoSmithKline, Prothena, Ionis Pharmaceuticals, and Amgen. The remaining authors declare no competing financial interests.