Anemia in Pregnancy
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Anemia in Pregnancy
Isharyah Sunarno
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Introduction
• Anemia: Hb concentration < normal,according to the GA or sex
• Hb < 11 gr% in 1st & 3rd trimester• Hb < 10.5 gr% in 2nd trimester• Hb < 12 gr% in non pregnant ♀• Hb < 7 gr% in severe anemia • Hb < 4 gr% in extreme severe
anemia
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Introduction
Anemia:• Iron deficiency anemia• Vit. B12 & folic acid deficiency
anemia• Haemoglobinopathy anemia• Erythropoetin deficiency anemia
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Introduction
Iron deficiency anemia• Fe demand is higher than Fe loss
in one day • Unbalanced diet • Permanent iron deficiency
erythropoesis disturbance.
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Introduction
Vit. B12 & folic acid deficiency anemia
• Macrositic-hyperkrom• CS: mild jaundice, BW,
neurological deficit, dan glocitis or other epithelial damage.
• Confirmed with Vit. B12 or folic acid in serum and erythrocite.
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Introduction
Haemoglobinopathy anemia• Haemoglobinopathy : hemoglobin
protein component synthesis disturbance
• Result: – Alteration in hemoglobin synthesis normal polypeptide chain synthesis
velocity
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Introduction
Haemoglobinopathy anemia• Single amino acid chain• Whole amino acid chain• Major cause : erythrocite
destruction, erythrocite life-span, hemolysis
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Introduction
Haemoglobinopathy anemia• Accompanied by : abnormal
eryhtrocite morphology, transportation function, deteriorating oxygen transfer, erythropoesis compensatoric with reticulosytosis & bone marrow hyperplasia.
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Introduction
Erythropoetin deficiency anemia• Ineffective arythropoesis caused
by : absolute erythropoetin deficiency or inadequate erythropoetin reaction (relative).
• Erythropoetin deficiency major cause of anemia in CRF.
• Normochromic -normocytic.
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Introduction
• 3 phases of iron deficiency :• Phase 1 : iron reserve depletion
ferritin level• Phase 2 : erythropoesis
disturbance transferrin saturation because TIBC while iron serum
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Introduction
Phase 2 :• Erythrocite protoporphyrin concent.
• Protoporphyrin : heme precursor in
erythrocite if available Fe is not enough for heme synthesis.
• Hb concent. normal or tend to • Serum sTfR .
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Introduction
• Phase 3 : – Microcytic-hypochrom– Retyculocite in Hb – Ferritin level
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Introduction
• SKRT (2004) in Indonesia: prevalence of anemia in pregnancy: 50,5%
• USA: 6%
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Introduction
• WHO according to representative national survey (1993 – 2005) : – 42% pregnant women were
anemia– Non-malaria area : 60% caused by
iron deficiency– Malaria area : 50% caused by iron
deficiency
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Introduction
• SKRT (1994) : prevalence of nutritional anemia in pregnancy in South Sulawesi Province : 76,17%.
• Iron deficiency anemia is the most common nutritional problem in the world
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Introduction
• World Health Day (April 7th, 2003) → WHO: iron deficiency anemia– 1 out of 10 risk factors of major
health problem– 40% of maternal death in developing
countries ↔ anemia in pregnancy
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Patophysiology
• Mature eryhtroid progenitor need Fe for Hb synthesis
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Lab
• Parameters to measure Fe status :– Fe plasma or serum– Transferrin & transferrin
saturation– Transferrin receptor – Ferritin
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Introduction
• Anemia ~ pregnancy outcome ??– Anemia → ↑ risk of preterm & LBW– Iron reserve ↑ → LBW & oxydative
damage– Diet supply → neonates & placental
size– Micronutrient supply ≠ neonates &
placental size
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Patophysiology
• Anemia involved : erythrocite count and / or– Hb concent.
Loss of blood oxygen transfer
capacity
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Management
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Iron Deficiency anemia
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pallorpallor
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Conjunctival Conjunctival PallorPallor
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KoilonychiKoilonychiaa
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Smooth TongueSmooth Tongue
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Normal Iron Requirements
• Iron requirement for normal pregnancy is 1gm
200 mg is excreted300 mg is transferred to fetus500 mg is need for mother
• Total volume of RBC inc is 450 ml1 ml of RBCs contains 1.1 mg of iron450 ml X 1.1 mg/ml = 500 mg
• Daily average is 6-7 mg/day
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TreatmentTreatment• Prophylactic: Supplement Fe – 60 : Supplement Fe – 60
mgmgelemental Fe with Folic Acidelemental Fe with Folic Acid
• Curative: 200mg FeSo4 3 times Curative: 200mg FeSo4 3 times daily till Hb level becomes normal, daily till Hb level becomes normal, then maintenance dose of 1 tab for then maintenance dose of 1 tab for 100 100 ddaysays
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Megaloblastic AnemiaMegaloblastic Anemia
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Angular CheilosisAngular Cheilosis
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TreatmentTreatment
• ProphylacticProphylactic- all woman of reproductive - all woman of reproductive age should be given 400mcg age should be given 400mcg of folic acid dailyof folic acid daily
• CurativeCurative-daily administration of Folic -daily administration of Folic acid 4mg orally for at least 4 acid 4mg orally for at least 4 wks following deliverywks following delivery
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Hemoglobinopathy
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Sickle cell Sickle cell HemoglobinopathyHemoglobinopathy
• Hbs comprises 30-40% total HbHbs comprises 30-40% total Hb• There is substitution of Lysine for glutamic There is substitution of Lysine for glutamic
acid at the sixth position of B chain of Hbacid at the sixth position of B chain of Hb• Red cells in oxygenated state behave Red cells in oxygenated state behave
normally, but in deoxygenated state it normally, but in deoxygenated state it aggregates, polymerises and distort red aggregates, polymerises and distort red cells to sickle. cells to sickle.
• These cells are more fragile and increased These cells are more fragile and increased destruction leads to hemolysis, anemia destruction leads to hemolysis, anemia and jaundice.and jaundice.
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ManagementManagement
• Careful antinatal supervisionCareful antinatal supervision• Air travelling in unpressurised Air travelling in unpressurised
aircraft to be avoided.aircraft to be avoided.• Prophylatically Folic A. 1gm Prophylatically Folic A. 1gm
daily.daily.• Regular blood transfusion at Regular blood transfusion at
approx. in 6 weeks intervalapprox. in 6 weeks interval
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Management
• History and physical examination is sufficient to exclude serious disease (e.g pregnant or lactating women, adolescents)
- CURE ANEMIA• History and/or physical examination is
insufficient (e.g old men, postmenopausal women)
- FIND ETIOLOGY OF ANEMIA AND CURE (CAUSAL TREATMENT)
• Benzidine test • Gastroscopy• Colonoscopy• Gynaecological examination
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ORAL IRON ABSORPTION TEST
1. baseline serum iron level2. 200 - 400 mg of elemental iron
orally3. serum iron level 2-4 hours after
ingestion
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SIDEROBLASTIC ANEMIAS
• HEREDITARY DISORDERS (rare)• SYNONIM FOR MDS (RA,RAES)• DISTURBANCES IN INTRACELLULAR
IRON METABOLISM• HIGHER SIDEROBLASTS NUMBER IN
BONE MARROW• CORRECT OR HIGHER IRON
CONCENTRATION
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Anaemia prophylaxis/control programme for pregnant women
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Programmes for prevention and management of anaemia in
pregnancy
• In India : an attempt was made to identify all pregnant women and give them 100 tablets containing 60mg of iron & 500μg of folic acid
• In hospital settings, screening for anaemia and iron-folate therapy in appropriate doses and route of administration for the prevention and management of anaemia have been incorporated as an essential component of antenatal care
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Management of anaemia in pregnancy
• Hb < 5 g/dL– Constitute 5- 10 % of anaemic women– Admission and intensive care preferably
in secondary or tertiary care institutions to ensure maternal and fetal salvage
• Hb 5 to 7.9g/dL– Constitute 10 to 20% anaemic women– Screen for systemic/obstetric problems
and infections– If she has no other systemic or obstetric
problems give her IM iron therapy
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Effect of IM iron dextran on Hb & birth weight
Group No. No.
Hb < 8g/dl untreated 443 2530 + 651
IM iron from 20 weeks 76 2890 + 428
IM iron from 28 weeks 105 2734 + 416
Following initial successful trials by Dr Menon, Dr Bhatt and others, IM iron dextran injections were widely used in medical college hospital settings on out patient basis ; between 10-30 % report side effects fever, arthralgia or myalgia .
However IM iron dextran injections never reached primary health care settings
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IM IRON SORBITOL COMPLEX
Initial trials by Dr Menon showed promising results but it was not widely used because
1/3rd of the drug gets excreted in urine and higher dose of is required
It was more expensive
Advantages
Side effects are mild: nausea, metallic taste in the tongue and giddiness; all these respond readily to symptomatic treatment
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Impact of IM iron sorbital on Maternal Hb & birth-weight(NFI)
Maternal Hb (g/dl) N Birth weight(g)
I - < 8.0 97 2577+378.3
II - 8.0 – 11.0 645 2796+394.7
III - > 11.0 103 2921+418.1
Total 845 2786+4055
All women who had IM iron therapy
340 2805+379.3
NFI study showed that IM iron sorbital therapy is feasible in primary care institutions. Mean Hb rose and there was significant improvement in birth weight. BUT majority of women who received 900 mg of iron sorbital had Hb levels around 10 g/dl and birth weight was lower than the birth weight in non-anaemic women.
It would appear that 1500mg of iron sorbital citric acid complex would be required for optimal results .
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Side effects of IM iron sorbitol citric acid complex
Metallic taste in the mouth 32.4%
Nausea/vomiting 15.3%
None had muscle or joint pain which is commonly seen with iron dextran injections
Nausea and vomiting was treated with anti-emetics.
It maybe worth while to initiate its use in medical colleges and later at smaller hospitals
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IM iron therapy
IM iron therapy mainly iron dextan was used mainly in some medical colleges and rarely at district hospitals. It never reached primary health care level
There were problems in ensuring continuous supply of drugs even at medical colleges
Some women found it difficult to come to OPD daily for ten days for IM injections
With iron dextran women who developed trouble some side effects like arthralgia wanted to discontinue;
Iron sorbital citric acid complex was associated with fewer and milder side effects but this drug has not been widely used
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Strategy for prevention of anaemia in pregnancy
health and nutrition education to improve over all dietary intakes and promote consumption of iron and folate-rich foodstuffs- possible through NRHM’s health and nutrition days dietary diversification inclusion of iron folate rich foods as well as food items that promote iron absorption- possible with proper linkages with National Horticultural Mission introduction of iron and iodine-fortified salt universally to improve iron intake- possible with NIN technologyOpportunity: Affordable & sustainable interventions to improve iron and folate intake of the entire family and prevent anaemia are readily available .
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Strategy for prevention of anaemia in pregnancy focus on Hb estimation for detection and treatment of anemia in adolescent school girls as a part of school health check – possible through school health system
focus on Hb estimation in girls / women who are married, for detection and treatment of anemia prior to pregnancy- can be attempted through coordination with AWW
screening all pregnant women for anemia-Possible using filter paper technique
providing one tablet of IFA to prevent any fall in Hb levels in non anaemic pregnant women- possible through NRHM
Opportunity:All these interventions are feasible& affordable for the individual and health system. With universal coverage and monitored supplementation it is possible to ensure that non anaemic women do not become anaemic
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Strategy for management of anaemia in pregnancy
iron folate oral medication at the maximum tolerable dose throughout pregnancy for women with Hb between 8 –10.9g/dL – possible through convergence between AWW and ANM
IM iron therapy for women with Hb between 5 and 7.9 g/dL if they do not have any obstetric or systemic complication- possible with urban & rural PHCs taking the major responsibility
hospital admission and intensive personalised care for women with haemoglobin less than 5 g/dl- possible with referral to tertiary care centres using of emergency transport funds and ASHA
screening and effective management of obstetric and systemic problems in anaemic pregnant women possible in hospitals
improvement in health education to the community to promote utilisation of available care possible through AWW, ASHA, ANM and PRI
Opportunity:All these interventions are feasible& affordable for the individual and health system.
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Opportunities for prevention, detection and management of anemia in pregnant women
India currently has the necessary infrastructure , manpower, technology for this task
Indians are rational and responsive; people’s institutions are in place for providing the necessary community support
Prevention, detection and appropriate management of anemia in pregnant women and preventing the adverse consequences of anaemia on the mother child dyad is feasible under NRHM and its urban counterpart
The country should take this opportunity to show case how it can cope with a major challenge to maternal and child health effectively within a short time
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