Search results
Results From The WOW.Com Content Network
The most common antibody isotype involved in warm antibody AIHA is IgG, though sometimes IgA is found. The IgG antibodies attach to a red blood cell, leaving their F C portion exposed with maximal reactivity at 37 °C (versus cold antibody induced hemolytic anemia whose antibodies only bind red blood cells at low body temperatures, typically 28–31 °C).
Symptoms of AIHA may be due to the underlying anemia; including shortness of breath or dyspnea, fatigue, headache, muscle weakness and pallor. [10] In cold agglutinin disease (cold antibody type), agglutination and impaired passage of red blood cells through capillaries in the extremities causes acrocyanosis and Raynaud phenomenon with a rare complication of gangrene [4]
Treatment depends on the type and cause of the hemolytic anemia. [2] Symptoms of hemolytic anemia are similar to other forms of anemia (fatigue and shortness of breath), but in addition, the breakdown of red cells leads to jaundice and increases the risk of particular long-term complications, such as gallstones [4] and pulmonary hypertension. [5]
Initial symptoms of drug-induced autoimmune hemolytic anemia are typically vague and reflect mild, moderate, or severe anemia. Symptoms of DIIHA can manifest within hours to months of the initial drug exposure. [1] DIIHA ranges in severity from severe intravascular hemolysis to milder presentations of extravascular hemolysis. [7]
Symptoms may arise suddenly leading to abrupt onset of severe anemia and hemoglobinuria or develop more gradually and insidiously in the background without patient's consciousness and precaution. [4] [7] Most people with CAD have symptoms of hemolytic anemia (destruction of red blood cells, causing low levels of red blood cells). [8]
Acquired hemolytic anemia can be divided into immune and non-immune mediated forms of ... Autoimmune hemolytic anemia [1] Warm antibody autoimmune hemolytic anemia [1]
AIHA can be classified as warm autoimmune hemolytic anemia or cold autoimmune hemolytic anemia, which includes cold agglutinin disease and paroxysmal cold hemoglobinuria. These classifications are based on the characteristics of the autoantibodies involved in the pathogenesis of the disease.
Mixed autoimmune hemolytic anemia (MAIHA) is a type of autoimmune hemolytic anemia which combines the features of cold sensitive antibody-induced diseases and warm autoimmune hemolytic anemia. The work-up for diagnosis is complex and the condition can be over-diagnosed. [1] [2] [better source needed]