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ASPEK KLINIS ANEMIA
DAN HEMOLISIS
dr Erlina Marfianti, MSc, SpPD
Dept Ilmu Penyakit Dalam FK UII
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DEFINITION
Normally defined as haemoglobin concent less than :
13. g/dl in adult male
12. g/dl in adult female
11. g/dl in pregnance women
Children : Newborn Hb 15-21 g/dl
3 month Hb 9.5-12.5 g/dl
1 year-puberty Hb 11.0-13.5 g/dl
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Subtances needed for
erythropoiesis Metal: Fe, Mg, Co
Vitamins: B1, B6, B12,riboflavin, panthothenic
acid, Folate, Vit C, Vit E
Amino acids Hormones: erythropoietin,
androgens, thyroxine
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Main function Hb :
Carry oxygenthe
tissue
Return carbon dioxide(CO2) from the tissue
to the lung.
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A. Classification of anemia based on
functional defect/ Pathofisiologic :
I. Hemorrhage (Blood loss):
a. acutepost acute
hemorrhagehipovolemia
b. chronicIronDeficiencyAnemia
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II. Increase destruction RBC
a. Herediter:
Defect of red cell cytosceleton
membranhereditary spherocytosis
,eliptocytosis
metabolicdefect/enzyme deficiency
G6PD, Piruvat Kinase deficiencyDefect of globin synthesis/globin
struc.abnormality:thalassemia,
hemoglobinopathi: sickle cell
anemia,HbC, HbE,
1. Hemolytic Intrinsic Anemia /Intracorpuscular
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2. Ekstracorpuscular/Hemolytic Extrinsic
Anemia.
a. Immun Hemolytic AnemiaIso/Allo Immun Hemolytic:
- HDN (Hemolytic Disease of The Newborn),
- hemolytic transfusion reaction
Auto immun Hemolytic Anemia (AIHA)
Drug Induced Immun Hemolytic Anemia
viral infection : mycoplasma, mononucl inf
b. Non Immun Hemolytic Anemia
mechanical: artificial valve dysfunction,MAHA (Microangiopathic Hemolytic Anemia)
chemical, burn
parasitic infection : malaria
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III. Failure in RBC production /
hipoproliferatif:
1.EPO production / response to EPO
chronic inflamation and renal disease,
endocrin disease.
2. Marrow damage
Stem cell proliferation & differentiation
failure hipoplastic, aplastic
3. Bone marrow replacement:
* fibrosis,
* infiltration (lekemia, limfoma),
* metastatic neoplasm
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IV. Maturation defect/maturation
disorder
1. Cytoplasmic maturation defect
Abnormal globin development
thalassemia
Abnormal iron metabolism: Iron def An,ACD
Abn porphyrin synthesisAn.
sideroblastik
2. Abnormal nuclear development :
Vit B12 deficiency
folic acid deficiency
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Anemia
Klasifikasi morfologi
Defek fungsional
A. mikrositik hipokromik
A. normositik normokromik
A. Makrositik
Destruksi
Blood Loss:
Kronik
Akut
Hemolitik
Defek maturasi Hipoproliferatif
Inti : A. Megaloblastik
Sitoplasma :
- Fe : A..Def Besi
- Heme:A.Sideroblastik
- Globin:
* Thalassemia
* Hb Pati
- Peny. Ss tulang
Intrinsik : aplastik
Infiltasi: lekemia
-Peny. Kronis
-Peny. Endokrin
-Peny. GinjalExtrapusculer
Intracorpusculer
Imun Non Imun
HDN
Reaksi
transfusi
AIHA
Drug induce
Infeksi virus
H.mekanis:
disfungsi
katub, MAHA
Bahan kimia,
luka bakar
Inf.parasit:
malaria
Herediter
Defek struktur globin:
-Kuantitas: thalassemia
-Kualitas:
sickle cell,
Hb-pati
Defek membran:
sferositosis hered,
elliptositosis hered.
Defek enzim: def.G6PD,piruvat kinase
Didapat
Defek
membran
erits: PNH
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Classification of anaemia
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Measurement of :
Hb, RBC count, Hct , MCV,MCH,MCHC
Manual /
Automatic Cell
Counter
Direct examination of redcell morphology in a
stained blood film
Morphologic classification of anemia according to RBCcount, size & Hb content.
MORPHOLOGY
The components of the CBC
also help in the classification
of anemia. Microcyt icisreflected by a lower than
normal MCV (100) reflect
macrocyt ic. The MCH and
MCHC reflect defects in
hemoglobin synthesis(hypochromia).
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MCV: Mean Corpuscular Volume: Is the average
volume of the RBC, ex pressed in FL (10-15/L) &
calculated as follows
Hct (%)
MCV= x 10 (Normal 81-100 fL/m3)
RBC count (x 106/L)
MCH: Mean Corpuscular Haemoglobin: is the average
weight of Hb in an each RBC, expressed in
picogram/10-12g
Hb (gm/dl)
MCH= x 10 (Normal 26-34 pg)
RBC count (x 106
/L)
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MCHC: Mean Corpusc Haemoglobin Conctr
is the average concentration of Hb
Hb (gm/dl)
MCHC= x 100% (Normal 31- 36%)Hmt (%)
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MACROCYTIC NORMOCHROMIC ANEMIA
RBC size > 8 m
normal Hb content
RBC count relatively low compared to Hb
MCV MCH, normal MCHC.
* Macrocytosis associated with a megaloblasticmarrow
(marrow erythroid precursor with morphologicabnormality, increase in size )
vit B12, folic acid deficiensy* Macrocytosis associated with anormoblasticmarrow:
* hemorrhagic & hemolysis
*def. folic acid/vit B12
reticulocytosis+
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- Low Hb- Normal MCV / MCH/ MCHC- Acute hemorrhage-Hemolytic anemia
- Disturbed iron utilizationAnemia of chronic disorders (ADC)
-B.Marrow disease:Intrinsic or infiltration
Aplastic An., metastatic,
lekemia, lymphoma, myeloma-Decreased erythropoietin drive-chronic renal failure-endocrin disorders
Anemia with appropriate
marrow response
Anemia with
inadequate
marrow
response
ANEMIA NORMOCYTIC NORMOCHROMIC
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Inadequat Hb formationRBC count relatively high compare with [Hb]
low MCV & MCH, MCHC
Blood film : Impaired Hb contentRBC size
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Normal Blood
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Normocytic - normochromic
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CLINICAL PRESENTATION OF
ANEMIA
1 Mild
2 Moderate
3 Several
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Table 61-1. Laboratory Tests in Anemia
Diagnosis
I. Complete blood count (CBC)A. Red blood cell count
1. Hemoglobin
2. Hematocrit
B. Red blood cell indices
1. Mean cell volume (MCV)
2. Mean cell hemoglobin (MCH)
3. Mean cell hemoglobin concentration
(MCHC)
4. Red cell distribution width (RDW)C. White blood cell count
1. Cell differential
2. Nuclear segmentation of neutrophils
D. Platelet count
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E. Cell morphology
1. Cell size
2. Hemoglobin content
3. Anisocytosis
4. Poikilocytosis
5. Polychromasia
II. Reticulocyte count
III. Iron supply studies
1. Serum iron
2. Total iron-binding capacity
3. Serum ferritin, marrow iron stain
IV. Marrow examination
A. Aspirate1. E/G ratioa2. Cell morphology3. Iron stain
B. Biopsy
1. Cellularity2. Morphology
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Approach to the Pat ient
Sign and Simptoms
Such as bleedingFatique
Malaiese
Fever
Weight loss
Sistemic symptoms
blood in the stool,
lymphadenopathy,
splenomegaly
petechiae.
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Iron Deficiency Anaemia
microcytic hypochromic anaemia
Ferrum = a constituent of hemoglobin
The aims in treating iron deficiencyanaemia :
* To remove the cause
* To increase red cell mass bygiving iron
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Causes of Iron Deficiency Anaemia
1. Chronic blood loss
* Gastrointestinal
- Disease of the GI tract (i.e. peptic ulcer,carcinoma of the large bowel, intestinal
parasites)- Drug induced ( i.e. aspirin , other NSAID)
- Menstrual (over 80 ml/cycle = 45 mg iron)
- Recurrent haemoptysis ( i.e. vascular
abnormalities, pulmonary haemosiderosis)
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2. Increased requirements
PregnancyTreatment of
megaloblastic anaemia
3. Malabsorption
Malabsorption syndromes
Post gastrectomy
4. Dietary deficiency
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Table 105-1. Body Iron Distribution
Iron Content, mg
Adult Male (80kg)
Adult Female (60kg)
Hemoglobin 2500 1700
Myoglobin/enzy
mes
500 300
Transferrin iron 3 3
Iron stores 600-1000 0-300
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Table 105-4. Diagnosis of Microcytic Anemia
Tests Iron
Deficiency
Inflammatio
n
Thalassemia Sideroblastic
Anemia
Smear Micro/hyp
o
Normal
micro/hypo
Micro/hypo
with
targeting
Variable
SI
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TREATMENT:
1. Suplement Fe oral
2. Fe Parenteral
M l bl ti A i
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Megaloblastic Anemia
The cell proliferation are needed an adequate folate and vitamin B12.
Folate = efficient thymidilate synthesis and production of DNA.
B12 = incorporate circulating folic acid into developing RBCs and retaining thefolate in the RBC.
Lack of folate or B12
decreased dTTP synthesis
a slowing of DNAsynthesis.
A i
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Anemia :
history and symptoms Tired
pallor
infections slow growth
pica (eating stones, mud, paper)
ask for:
diet (enough and good food?)
family history (hereditary disease?)
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Etiology Megaloblastic anemia
Malabsorbsi
Gastrointestinal disease
Malnutrition Inadekuat intake
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What about the food?
Does it contain meat, fish, egg,
vegetables? Contain iron
Does it contain fruit/juice? Vit C doubles iron absorption
Does child drink tea often? Tea halves iron absorption
Does child drink cows milk? Can induce allergy and less resorption
Special attention points for
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Special attention points for
doctors :
General well being nutritional status
sick or not? tachycardia?
pallor, icterus icterus may point to hemolysis
spleen, liver enlargement spleen: hemolysis?
enlargement spleen+liver: malignant?
lymph nodes general enlargement: leukemia?
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Nutritional anemia
Iron deficiency
microcytic
iron is needed for Hb production, so absence
causes low Hb and therefore small cells
Vit B12 or Folic acid
megaloblastic B12 and F are needed for cell division, so
absence causes low Ery count and large cells
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Screening tests
1. CBC :
MCV 100-150 fL range (>120 fL)
RDW
Morphologic: oval macrocytes andhypersegmented neutrophils (the cause isnot understood)
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The peripheral blood reveals a pancytopenia
(decreased RBCs, white cells, and platelets),
hypersegmented neutrophils (> five lobes), and
oval macrocytes.
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AplasticAnemia
bone marrow produces too few of all three types
of blood cells: red blood cells, white blood cells,
and platelets.
A reduced number of red blood cells causes
hemoglobin to drop. A reduced number of white
blood cells makes the patient susceptible to
infection. And, a reduced number of plateletscauses the blood not to clot as easily.
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Clinicallyand Diagnostic
pancytopenia- decreased numbers oferythrocytes, leukocytes, and platelets in theperipheral blood. anemia syndrome, infection,hemorhage.
Aplasia must be confirmed by bone marrowbiopsy.
Other hematopoietic disorders can present with
pancytopenia and must be distinguished fromaplastic anemia. These include paroxysmalnocturnal hemoglobinuria, myelodysplasia, andacute leukemia.
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Manajemen
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Anemia in Systemic Diseases
1. Anemia of Chronic Disease
2. Anemia with Chronic Endocrine Disease
3. Anemia with Chronic Renal Disease4. Anemia associated with Liver Disease
Anemia of Chronic
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Anemia of Chronic
DiseaseACD is associated with an underlying disease(usually inflammation, infection, or malignancy), but iswithout apparent cause (not due to a lack of thenutrients iron, vitamin B 12, or folic acid). ACDresolves when the underlying disease resolves.
Anemia of chronic disease (ACD) is difficult to defineas its eitology and pathogenesis is not clear.
ACD is the most common anemia in hospitalizedpatients.
Ca ses of Chronic inflammatory diseases
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Causes of
Anemia of
ChronicDisease
Chronic inflammatory diseases
Infectious
Tuberculosis
Pulmonary infections,pneumonia
Pelvic inflammatory diseaseChronic fungal disease
Subacute bacterial endocarditis
Osteomyelitis
Meningitis
Non Infectious
Rheumatic arthritis
Thermal injury
Systemic lupus erythematosus
Malignant Disease
Carcinoma
Hodgkin Disease
Non-Hodgkin lymphoma
Leukemia
Multiple Myeloma
P th h i l
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Pathophysiology
1. Failure of erythropoiesis
2. Lack of iron forhemoglobin synthesis
3. Decreased RBC survival
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Anemia in Endocrine Disease
Anemia in DM patients:
ACD
Enteropathy poor absorption of iron,
vit B12, and folate.Suffer from chronic blood loss andchronic renal insufficiency
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Anemia with chronic Renal Disease
Pathophysiology:
1. Decreased erythropoiesisEPOor
nonfunctional
2. Azotemiasuppressed the bone marrow and
RBC survival
3. Chronic blood lossdefects of plt and vessel
4. Folate and iron deffChronic hemodialysis
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Anemia in Liver Disease
The most common liver disease linked to anemia inalcoholism
Anemia generall mild to moderate, but can periodically
become more severe
Pathophysiology:
1.Direct toxic effects of alcohol2.Various nutritional deficiencies
3.RBC survival defects
4.Abnormal iron metabolism
H l ti A i
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ClassificationExtracorpucular Hemolytic Anemiaa. Immune Hemolytic Anemia
1. Alloimmune Hemolytic Anemia
2. Autoimmune Hemolytic Anemia (AIHA)
3. Drug induce immune Hemolytic Anemia
b. Non-immune Hemolytic Anemia
1. Mechannical: arterial valve dysfunction- MAHA: TTP, HUS
2. Chemical, burn
3. Parasitic infection: malaria
Hemolytic Anemia
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Immune Hemolytic anemia
Alloimmune hemolytic anemia
Transfusion : ABO incompatibility
Hemolytic disease of the newborn (HDN)
ABO incompatibility
Rhesus incompatibility
Autoimmune hemolytic anemia
Warm-reactive antibodies Cold-reactive antibodies
Drug induce
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Gene Glycosyltransferase
(enzyme)
Immunodominant
Sugar
Antigen
H -2-L-fucosyltransferase L-fucose H
A
-3-N-
acetylgalactosaminyl
transferase
N-acetyl-D-
galactosamin A
B
-3-D-
galactocylltransferase D-galactose B
Donor nucleotides and immunodominant sugars responsible
for H, A and B antigen
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ANTIGLOBULIN TEST ( COOMBS TEST )
The antiglobulin test is based on the
principle that antihuman globulin(AHGs)obtained from immunized nonhuman speciesbind to human globulinsuch as
IgG or complement, either free in serum or
attached to antigens on RBCs
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Serum COOMBS (ANTIHUMAN GLOBULIN)
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Direct Antiglobulin Test /DAT
(Direct Coombs Test)
The DAT detects in vivo sensitization of RBCs with
IgG and/or complement components
Detects of incomplete antibody that has alreadyattached on RBCs
Clinical condition that can result in in vivo coating of
red cells with antibody an/or complement are:
Hemolytic disease of the newborn (HDN) Hemolytic transfusion reaction
Autoimmune and drug induce hemolytic anemia (AIHA)
Normal catabolism
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Normal catabolism
of aged RBCs
Intravascular
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hemolytic
anemia
Removal of hemoglobin from blood plasma after intravascular hemolysis
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Lysed RBC
In blood vessel
/dimers
Kidney
Hemoglobinuria
Hemosiderinuria
Urobilinogenuria
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Extravascular
hemolytic
anemia
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Clinically Findings
Symptomp of Anemia
Icteric
Organomegali (splenomegali)
Hematopoesis ekstra meduller
Change in colour of urin
Laboratory findings indicating accelerated RBCs
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Laboratory findings indicating accelerated RBCs
destruction
Test sample Result of testing
Serum
Anticoagulated
blood
Urine
increased unconjugated bilirubin
increased LDH activity
absence of haptoglobin
decreased glycosylated hb
increased free hbincreased methemalbumin
decreased hemopexin
decreased hematocrit
decreased hb
decreased RBCs
increased urobilinogen
positive free hb
positive methemoglobin
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Laboratory findings indicating accelerated RBCs
production
Test sample Result of testing
Anticoagulated
blood
Bone marrow
special studies
increased reticulocyte count
increased MCV
increase leukocytes
increased thrombocytes
presence of morphology specific to
hemolytic disorder (polychromasia, NRBCs)
presence of erythroid hyperplasia
increased plasma iron turnover
increased erythrocyte iron turnover
increased activity of certain erythrocyte
enzymes
Intravascular hemolytic anemia
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Intravascular hemolytic anemia
Serum:
increased unconjugated &bilirubin increased urobilinogen
increased LDH activity
absence of haptoglobin
decreased glycosylated hb
increased free hb
increased methemalbumin decreased hemopexin
Urine
increased urobilinogen (urobilinogenuria)
positive free hb (hemoglobinuria)
positive methemoglobin
hemosiderinuria
Stools
Fecal urobilinogen
Coombs test : + (positive)
Extravascular hemolytic anemia
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Extravascular hemolytic anemia
Serum: increased unconjugated bilirubin
increased conjugated bilirubin
increased urobilinogen
Urine increased urobilinogen
Stools
increased urobilinogen
Coombs test : + (positive)
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ALLOIMMUNE HEMOLYTICANEMIA
Hemolytic Transfusion Reactions
Hemolytic disease of the newborn (HDN)
H l ti T f i R ti
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Hemolytic Transfusion Reactions
Hemolytic transfusion reactions result from intravascularbreakdown, which is commonly due to an incompatibilty in the
ABOsystem or to destruction occuring in the macrophage
system
Two types reactions: immediate & delayed
Immediate symptoms begin within minuteshours (chills, fever, urticaria,
tachycardia, nausea, vomiting, chest & back pain, shock,
anaphylaxis, pulmonary edema & congestive heart failure
The laboratory diagnosis:
Based on the evidence of hemolysis & a blood group incompatibility
Hemoglobinemia, hemoglobinuria
Bilirubin level is increased
The entire typing & crossmatch procedures should be repeated
Hemolytic Transfusion Reactions
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Hemolytic Transfusion Reactions
Delayed may occur days or weeks after transfusion
may result in jaundice and anemia due to hemolysis
development of undetected antibodies occurs 4-14 after
transfusion of apparently compatible blood
Patient has been alloimmunized by previous pregnancy or
transfusion
Antibody concentration at the time of transfusion was
below the level of serologic detection
DAT +
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Laboratory findings in HDN caused by ABOincompatibility: Anemia (anemia is milder than in HDN Rh
incompatibility) Increased reticulocyte count mikrospherocytosis Direct Coombs test +
Slightly increased of unconjugated bilirubin
Laboratory findings in HDN caused by Rhincompatibility: Mild severe anemia
Reticulocyte count > 10% NRBCs ++, polichromasia, leukocytosis,
thrombocytopenia Unconjugated bilirubin is markedly increase
Direct Coombs test ++
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Hemolytic disease of the newborn (HDN)
HDN caused by destruction of the RBCs of the fetus
by antibodies produced by the mother
Only antibodies of the IgG class are actively
transported across the placenta
The antibodies are directed against those antigens
on the fetal RBCs that were inherited from the father
HDN
ABO incompatibility
Rh incompatibility
HEMOLYTIC DISEASES OF NEWBORN / HDN
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ABO INCOMPATIBILITY
HEMOLYTIC DISEASES OF NEWBORN / HDN
Mother: group O, fetus: group A/BMothers antibodies (IgG) enter across the placentaPromotes interaction of Ag-Ab
hemolysis
Ag-Ab
Mother, group O
lyse
Fetal circulation
B
Anti B
Anti A
B
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Hemolytic Disease of
Newborn (HDN)
Mother Rh -
Fetus Rh +
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AUTOIMMUNE HEMOLYTIC
ANEMIA(AIHA)
Autoimmune Hemolytic Anemia (AIHA)
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y ( )
16% cases
< 20C
Ig M
>> infectious diseases: MYCOPLASMA
PNEUMONIAE
Infectiousmononucleosis (EBV)
Cytomegalovirus HIV etc.
Intravascular hemolysis
70-75% cases
37C
Ig G
>> autoimmune disease: Lymphoproliferative ds
Systemic Lupus Erythematosus(SLE)
Infections diseases
Non-lymphoid neoplasm
Colitis ulcerative
drugs
Extravascular hemolysis
COLDWARM
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Laboratory findingsAnemia Increased reticulocyte count
Direct Coombs test +Mikrospherocytosis (warm ab), clumping (cldab)
increased of unconjugated bilirubin
Accelerated of RBCs productionAccelerated of RBCs destruction
Bl dAIHA
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Blood smear
Polychromasianucleated RBCs
Clumping (Cold-antibody)
Micro-spherocytes (warm-antibody) clumping
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Microangiopathic hemolytic anemia
Macrovascular hemolytic anemia
Hemolytic anemia caused by infection withmicroorganism
Hemolytic anemia caused by chemicals,
drugs and venoms
Hemolytic anemia caused by thermal injury
Non-immunohemolytic anemia
RBC b liti th t t
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RBC abnormalities that repressent
diagnostic characteristic (sickle cell,
spherocytes, target, fragmentocytes)
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Drugs and Chemicals
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g
Drugs and Chemicals that Have Been Reported to Cause
Clinically Significant Hemolytic Anemia.
CHEMICALS
Aniline
ApiolDichlorprop (herbicide)
Formaldehyde
Hydroxylamines
LysolMineral spirit
Nitrobenzene
Resorcin
DRUG:
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DRUG:
Amyl nitrite
MephenesinMethylene bule
Omeprazole
Phenazopyridine (Pyridium)Salicylazosulfapydine
Salicylazosulfapyridine (Azulfidine)
O gen
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Oxygen:
Hemolytic anemia has developed inpatientsreceiving hyperbaric oxygenation and in astronautsexposed to 100% oxygen.
Insect and Arachined venoms
Severe hemolysis may occur in some patients
following bites by bees wasps, spiders, or scorpionsSnake bites are only rarely a caused of hemolysis
Heat
Patient with extensive burns may develop severehemolytic anemia apparently as a result of directdamage to the red cells by heat
Hemolytic Anemia Resulting from Infectious
8/10/2019 Aspek Klinis Anemia
92/93
y g
Agent
Mechanisms:
Hemolysis may be caused by:
Direct invasion by infecting organisms
(malaria)Elaboraion of hemolytis toxins (Clostridium
perfringens)
Development of autoantibodies againt red
blood cell antigens (Mycoplasma pneumoniae)
8/10/2019 Aspek Klinis Anemia
93/93
Alhamdulillah