Protocols - Hemorio
Protocols - Hemorio
Protocols - Hemorio
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SELFIMMUNE HEMOLYTIC ANEMIA<br />
CONCEPT: Selfimmune hemolytic anemia is defined as pathologies in which occurs premature<br />
destruction of red blood cells, mediated by fixes antibodies and antigens of erythrocyte membrane. This<br />
immune fixation triggers a number of reactions in cascade that finishes in these cells lysis<br />
(INTRAVASCULAR HEMOLYSE), in addition to phagocytose by macrophagolitic system<br />
(ETRAVASCULAR HEMOLYSE)<br />
ETHIOLOGIC CLASSICATION<br />
PRIMARY IDIOPATIC<br />
SECONDARY Lynphoproliferative<br />
disease<br />
LLC, DH, LNH, MM<br />
Self-immune disease LES, self-immune hepatitis, rheumatoid<br />
AHAI BY WARM<br />
arthritis, self-immune thyroiditis, Biermer<br />
ANTIBODY<br />
anemia<br />
IgG, C3b<br />
Tumor Ovary Cyst, malignant neoplasm<br />
Infections Pneumonias and rhinopharyngitis<br />
Immunosuppressive Pregnancy and transplants<br />
Drugs Alpha-metildope, cimetidine, Procainamide<br />
AHAI BY COLD<br />
PRIMARY / IDIOPATIC<br />
ANTIBODY (COLD<br />
AGGLUTININ)<br />
SECONDARY<br />
Lynphoproliferative disease<br />
Infections<br />
Cascade complement formation Intravascular hemolyze<br />
Drug absorption in cellular membrane Extra-vascular hemolyze<br />
DRUG-INDUCED AHAI Changes in cellular membrane<br />
Adsorption non-immunologic<br />
PAROXYSM COLD<br />
HEMOGLOBINURIA<br />
(biphasic hemolysins)<br />
Self-antibodies formation Alpha-metildope<br />
Fixes complement at low temperatures and<br />
promotes intravascular hemolyse > 37o IDIOPATIC<br />
C<br />
Diagnose by Donath-Landsteiner test<br />
SECONDA<br />
RY<br />
More frequent in children<br />
associated to viroses<br />
(measles, chickenpox,<br />
rubeola, mononucleosis)<br />
More rare form of AHAI.<br />
DIAGNOSE<br />
Clinical Diagnose: clinical signals of anemia, jaundice. In case of extravascular hemolyze, it may occurs<br />
splenomegaly and in case of cold antibodies, Raynaud phenomena and intolerance to cold, due to vase<br />
spasms, can be noted.<br />
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