420 likes | 436 Views
ANEMIA. College of Medicine & KKUH 19/02/2015 Khalid Al- Anazi. Cytopenias. ** Low WBC counts: - Neutropenia - Lymphocytopenia - Monocytopenia ** Low Hb level: - Normocytic Anemia - Microcytic Anemia - Macrocytic Anemia ** Low PLT counts :
E N D
ANEMIA College of Medicine & KKUH 19/02/2015 Khalid Al-Anazi
Cytopenias ** Low WBC counts: - Neutropenia - Lymphocytopenia - Monocytopenia ** Low Hb level: - Normocytic Anemia - Microcytic Anemia - Macrocytic Anemia ** Low PLT counts: - Primary - Secondary - Immune & non-immune ** Pancytopenia
Common causes of anemia 1- Acute trauma and blood loss 2- Chronic infections e.g. hookworm and parasitic infections. 3- Chronic diseases e.g. chronic renal failure. 4- Nutritional anemia 5- Bone marrow failure syndromes: aplastic anemia & myelodysplastic syndrome 6- Neoplastic disorders: leukemia, lymphoma & solid tumors 7- Endocrine diseases & hormona imbalance 8- Immune mediated hemolytic anemia 9- DIC & toxin exposure
The most common causes of anemia 1- Iron deficiency anemia 2- Thalassemia 3- Sickle cell disease 4- Aplastic anemia 5- Hemolytic anemia 6- Pernicious anemia 7- Fanconi anemia
Classification of anemias 1- Microcytic hypochromic 2- Normocytic normochromic 3- Macrocytic
Treatment of anemia * Rx of cause; symptomatic Rx; DIET * Supplements: iron; folate; vit B 12 * IV iron; blood transfusion
Classification of hemolytic anemias * Hereditary or acquired * Immune or non-immune * Intravascular or extravascular; intracorpuscular or extracorpuscular * Warm antibody or cold antibody type * Membrane, enzyme or globin chain defect; drug-induced, infection or disease-related
Hereditary hemolytic anemias - Sickle cell anemia - Thalassemias - Hereditary spherocytosis - Hereditary elliptosis - G-6-PD deficiency - Pyruvate kinase deficiency
Acquired hemolytic anemias 1- Immune hemolytic anemias: (a) Autoimmune hemolytic anemia (b) Alloimmune hemolytic anemia (c) Drug-induced hemolytic anemia 2- Mechanical hemolytic anemia 3- Paroxysmal nocturnal hemoglobinuria 4- Infection-related hemolysis 5- Drug-induced hemolysis
Causes of microangiopathic hemolytic anemia 1- HUS 2- TTP 3- Valve or arterial graft hemolysis 4- Mechanical: trauma and burns
Drugs that commonly cause hemolysis 1- Antimalarials: chloroquine, promaquine 2- Antimicrobials: sulfonamides, chloramphenicol, bactrim, nitrofurantoin. 3- Miscellaneous: aspirin, dapsone
Causes of Normocytic Anemia A- Anemia of chronic illness: ** Anemia of chronic renal insufficiency ** Anemia of chronic liver disease; multifactorial ** Anemia of endocrine disease: - Addison's disease - Hypothyroidism B- Hemolytic anemias: ** Sickle cell disease C- Bleeding; acute blood loss D- Nutritional E- Early iron deficiency anemia F- Mixed Anemia [Iron/Folate/Vit B12 deficiency]
Causes of Microcytic anemia 1- Iron deficiency anemia 2- Thalassemia; α , β 3- Sideroblastic anemia 4- Anemia of chronic illness 5- Anemia of inflammation 6- Lead poisoning
Causes of Macrocytosis 1- Folate deficiency 2- Vitamin-B12 deficiency 3- Pernicious anemia 4- Alcohol intake 5- Pregnancy 6- Hypothyroidism 7- Liver disease 8- Hemorrhage & hemolysis 9- Myelodysplastic syndrome & aplastic anemia 10- Multiple myeloma and acute leukemia 11- Malabsorption syndrome 12- COPD 13- Copper deficiency 14- Splenectomy 15- Drugs & Toxins: ** Arsenic poisoning ** Bactrim ** Nitrous oxide poisoning ** Metformin ** Anti-retroviral Rx ** Hydroxyurea ** Anti-TB Rx ** Methotrexate
Macrocytic anemia Common causes: 1- Diet: malmnutrition, malabsorption 2- Drugs: antifolate drugs, antimicrobials & anticonvulsdants 3- Alcohol intake 4- Liver disease 5- Thyroid disease 6- Malignancy: leukemia & myeloma 7- BM failure: MDS & aplastic anemia
THANK YOU