protein energy malnutrition - kauosaadah.kau.edu.sa/files/0030234/files/16254_protein energy... ·...
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Protein Energy Malnutrition
Omar Saadah MBBS,MRCP,CABP,DCHAssistant Professor of Pediatrics
Pediatric Gastroenterology, Hepatology & Clinical Nutrition
Faculty of Medicine, King Abdulaziz University
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Protein Energy malnutrition(anthropometric measurements)
• Underweight– Measurements that fall below 2 standard deviations
under the normal weight for age.• Stunting
– Measurements that fall below 2 standard deviations below height for age.
• Wasting– Measurements that fall below 2 standard deviations
below weight for height.
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Protein Energy malnutrition(Clinical diagnosis)
OK135 S056
Weight for height below 70% of the median
Bipedal edema
Visible severe wasting
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Micronutrient deficiencies
• Iron: fatigue, anemia, decreased cognitive function, glossitis and nail changes
• Iodine: Goiter, developmental delay, and MR• Vitamin D: poor growth, rickets, and
hypocalcemia• Vitamin A: night blindness, xerophthalmia, poor
growth, and hair changes• Folate: Glossitis, anemia
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Clinical forms of PEM
• Marasmus:– Severe wasting
• Marasmic kwashiorkor– Severe wasting in the presence of edema
• Kwashiorkor– Malnutrition with edema
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Gomez Classification of Malnutrition% of reference weight for age= ((patient weight) / (weight of normal child of same age)) * 100
Percentage of reference Interpretationweight for age
90-110% normal
75-89% Grade I: mild malnutrition
60-74% Grade II: mod malnutrition
< 60% Grade III: severe malnutrition
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Wellcome Classification of Malnutrition
Weight for age (Gomez) With Edema Without Edema
60-80% Kwashiorkor Undernutrition
< 60% Marasmic-Kwashiorkor Marasmus
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Waterlow Classification of malnutrition% Weight for height = ((weight of patient) / (weight of a normal child of the same height)) * 100
% Height for age = ((height of patient) / height of a normal child of the same age)) * 100
Weight for Height Height for age( wasting) (stunting)
Normal >90 >95Mild 80-90 90-95Moderate 70-80 85-90Severe <70 <85
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Severity of undernutrition
Grade ofMalnutrition
Median Weightfor Height (%)
Median Heightfor Age (%)
Criteria of Waterlow
Median Weightfor Age (%)
Criteria ofGomez et al
Normal 90-110 >95 90-110Mild 80-89 90-94 75-89Moderate 70-79 85-89 60-74Severe <70 <85 <60
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Example
• A 5 year old boy who has been ill for the last 6 weeks. Appeared miserable with wasting but no edema. His weight=10 kg, height=106 cm.
Calculations:
% Wt for Ht =Patient weight
Weight of normal child with the same heightX 100
10
18X 100 = 55%
Conclusion: severe malnutrition (marasmus)
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Prevalence of protein-energy malnutrition among children under 5 years of age in
developing countries, 1995
Region Stunting underweight wasting% % %
Africa 39 28 8Asia 41 35 10Latin America 18 10 3Oceania 31 23 5
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Protein-energy malnutritionEpidemiology
• Causes of death among children under 5 years of age 2000-2003, worldwide.
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Causes of PEM
• Early weaning• Delayed introduction of complementary
food• Low protein diet• Severe or frequent infections.
Usually manifest between 6 months and 2 years of age
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Direct and indirect causes of malnutrition
Malnutrition Marasmus, kwashiorkorMicronutrient deficiency
Severe or Frequent infections
diarrhea
Insufficient supplyOf protein, energyOr micronutrients
Ill healthUnhealthy
enviournment
InsufficientChild and
Maternal careInsufficientHousehold
Food security
WarNatural disasterCivil disorder
Low status andLittle education
Of women
Poverty
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Nutritional assessment
• Medical and dietary history
• Anthropometric evaluation and physical examination
• Laboratory measurements
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Medical and dietary history• Medical history
– review of acute and chronic illnesses– history of preexisting nutrient deficiencies– social history (poverty, domestic violence, parental employment,
parental marital status, and parental substance abuse)
• Dietary history– quantity and quality of current intake– in infants
• history of breast feeding pattern• formula preparation• volume consumed
• feeding techniques
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Marasmus: Typical Findings
History• decreased caloric intake over months to yearsphysical examination
– impression: cachectic, severely ill, “little old man” irritable, apathetic, hungry
– underweight, growth retardation– hair sparse, brittle, easily pulled out– Corneal opacity
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– Poor skin turgor– nails fragile , thin and fissured– loss of subcutaneous tissue– muscle wasting– abdominal distension (muscular hypotonia)– Rectal prolapse (loss of perianal fat)– vital signs: hypothermia, hypotension,
bradycardiaAnthropometry:wasting or stunting, weight for height or height for
age is less than 65% of the mean average
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Kwashiorkor: Typical Findings
History– decreased calorie intake over weeks to months
Physical Examination– may look well nourished, even “fat”, apathetic,
irritable, anorexic– moon facies, pitting edema– overall fatness– thin upper arm
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– flaking paint rash, pellagrous lesions, fissures, ulcerations
– mucosal thinnes, mild anemia– lifeless, thin, pale, weak, or dry hair– fragile and thin nails– Hepatomegaly (steatosis)– Vital signs: hypothermia, hypotension
• Anthropometry– usually underweight; occasional fat appearance
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Laboratory measurements
• Albumin• Prealbulmin• Transferrin• Total lymphocyte count (<1500)• Delayed hypersensitivity• Hemoglobin
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Management
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Assessment of severe malnourished child
• Dehydration • Infection• Intake of food & drinks & degree of anorexia• Blood glucose• Hemoglobin or hematocrit• Urine examination• Stool examination for giardia• CXR & PPD if TB is suspected.
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General principle of treatmentAcute or stabilisation phase Rehabilitation phase
Week 1 week 2-6Day 1-2 Day 3-7
Look for & treatHypoglycemiaHypothermiaDehydrationInfection
Specific treatment for all childrenElectrolytesMicronutrientsSensory stimulationInitial feedingFeeding to achieve catch-up growth
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Stabilization or Acute Phase• Correction of shock & dehydration
– i.v if shocked– ORS (low osmolarity with extra potassium)
• Life threatening complications:– Hypoglycemia (<54 mg/dl)– Hypothermia (<350 c). Keep the child well clothed,
with the head covered, in a warm enviourment– Two hourly feeding (day & night)
• Treatment of infections• Electrolytes imbalance: K+, mg++
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Stabilization or Acute Phase• Micronutrient deficiencies
– Vit A & Zinc (impair immune function & have direct effect on the structure & function of the mucosa.
– Iron– Folic acid– Copper (neutropenia, bone abnormalities, microcytic anemia)– Selenium ( impaired cardiac function)
• Dietary treatment– Feeding should be started as soon as possible– Diet should have low osmolarity and low lactose– The child should be fed every two hours-or every three hours
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Rehabilitation phase• The return of appetite heralds the rehabilitation phase and
usually occurs a week after treatment is started.• The goal is to achieve weight gain >10g/kg/day until the
patient is fully recovered.• Increase in energy & proetein intake should be gradual to
avoid cardiac failure.• A child is considered to have recovered on reaching a
weight foe height that is 90% of the Median.
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THANK YOU
Dr Omar Saadah