Child with failure to gain weight or height Flashcards

1
Q

Mild FTT

A

Fall across 3 centiles

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2
Q

Severe FTT

A

Fall across 3 centile lines

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3
Q

Organic causes of FTT

A

only 5% have underlying cause
Impaired suck/swallow - oro-motor dysfunction, neurological disorder e.g CP. cleft palate
Chronic illness leading to anorexia - Crohns disease, chronic renal failure, CF, liver disease

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4
Q

Non-organic causes of FTT

A

Psychosocial and environmental deprivation - abuse or neglect, parental mental health conditions (e.g maternal depression or ED), lack of education about needs of infant
Inadequate availability of food - feeding problems - insufficient breast milk, insufficient or unsuitable food offered, lack of regular feeding times

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5
Q

Other causes of FTT (not-organic or organic)

A

Inadequate retention - vomiting, severe GOR
Malabsorption - coeliac disease, CF, CMPA
Failure to utilise nutrients - syndromes, chromosomal disorders, prematurity, congenital infection, metabolic disorders
Increased requirements - thyrotoxicosis, CF, malignancy, chronic infection

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6
Q

Questions to ask in FTT history

A

Food diary over several days
Feeding, including details of what happens at meal times
Child well or does have other symptoms such as D+V, cough, lethargy
Child premature or have IUGR?
Any significant medical problems?
Growth or other family members and any illnesses in family?
Childs development normal?
Any psychosocial problems at home?

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7
Q

Signs of FTT on examination

A

dysmorphic features
signs suggestive of malabsorption: distended abdomen, thin buttocks, misery
Signs of chronic resp disease: chest deformity, clubbing, signs of HF, evidence of nutritional deficiencies

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8
Q

Investigations for FTT

A

FBC - anaemia, neutropenia, lymphopenia
U&Es - renal failure, renal tubular acidosis, metabolic disorders
LFTs - liver disease, malabsorption, metabolic disorders
TFTs - hypothyroidism or hyperthyroidism
Acute phase reactant - CRP
Igs - immune deficiency
Urine MCS - UTI
Stool MCS and elastase - intestinal infection, parasite

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9
Q

Mx of FTT

A

MDT and primary care
Health visitor - assess eating behaviour and provide support
Paediatric dietician
SALT
Input from clinical psychologist and social services may be helpful
Nursey placemement may alleviate stress at home and help with feeding
Hospital admission is usually only necessary in children under 6m with severe FTT who require active refeeding, may support mother in feeding
In extreme cases - hospital admission can be used to demonstrate child will gain weight when fed properly

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10
Q

Marasmus

A

Severe protein-energy malnutrition in children usually leads to marasmus
Weight for height more than -3SD below the median (<70% weight for height)
Wasted, wizened appearance
No oedema
Skinfold thickness and mid-arm circumference are markedly reduced
Affected children are often withdrawn and apathetic

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11
Q

Kwashiorkor

A

Another manifestation of severe protein malnutrition, generalised oedema and severe wasting, due to oedema weight may not be as severely reduced as in marasmus

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12
Q

Kwashiorkor

A

Oedema
“flaky-paint” rash with hyperkeratosis (thickened skin) and desquamination
Distended abdomen and enlarged liver
Angular stomatitis
Hair which is sparse and depigmentation
Diarrhoea
Hypothermia
Bradycardia
Hypotension
Low plasma albumin, potassium, glucose and Mg

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13
Q

Causes of kwashiorkor

A

Reared in traditional, polygamous societies where infants are not weaned from breast until 12m
Subsequent diet tends to be relatively high in starch
Often develops after acute intercurrent infection (measles or gastroenteritis)

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14
Q

Mx of Kwashiorkor

A

Acute:
Hypoglycaemia - correct urgently, particularly if coma or severely ill
Hypothermia - wrap child
Dehydration - correct but avoid being over-zelous with IV fluids can lead to HF
Electrolytes - correct deficiencies, esp. K+
Infection - give abx
Micronutrients - give vit A
Initiate feeding - small volumes and frequently, including at night - start low protein diet formula 75 then formula 100

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15
Q

Mechanism of vit D

A

Reduced intake
Defective metabolism of vit D
Causing a low serum calcium
Triggers release of PTH
Increased PTH normalises serum calcium but simultaneously demineralises all bone
PTH causes renal losses of phosphate and consequently low serum phosphate levels - further reduces potential for bone calcification

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16
Q

Presentation of vitamin D deficiency

A

Bone deformity
Rickets
Hypocalcaemia (seizures, neuromuscular irritability - tetany, apnoea and stridor) - high demand for calcium in rapidly growing bone results in hypocalcaemia before Rickets develops

17
Q

What is rickets? RF, S+S

A

Failure in mineralisation of growing bone or osteoid tissue
Failure of mature bone to mineralise = osteomalacia

Rx: CF, Coeliac disease, pancreatic insufficiencies

S+S: earliest sign = ping-pong ball sensation of skull elicited by pressing firmly over occipital or posterior parietal bones
Costochondral junctions may be palpable (rachitic rosary)
Wrists (crawling infants) and ankles (walking infants) may be widened
Horizontal depression over lower chest attached to softened ribs and with diaphragm (Harrison sulcus)
Legs may be bowed

18
Q

Causes of Rickets

A

Nutritional (primary) rickets:
northern altitudes
dark skin
decreased exposure to sunlight
maternal vi D deficiency
diets low in calcium, phosphorus and vit D
prolonged parenteral nutrition in infancy with inadequate calcium and phosphate

Intestinal malabsorption:
small bowel enteropathy (coeliac disease)
pancreatic insufficiency (e.g CF)
cholestatic liver disease
high phytic acids

Defective production of 25(OH)D2 - chronic liver disease

Increased metabolism of 25(OH)D3 - enzyme induction by anticonvulsants (e.g phenobarbitol)

Defective production of 1,25 (OH) D3 - Fanconi syndrome

19
Q

Mx of Rickets disease

A

Nutritional rickets is managed by diet advice, correction of predisposing RF and daily cholecalciferol
If compliance is an issue, single high dose of oral vit D3, then daily maintenance dose
Healing occurs in 2-4w and can be monitored from lower ALP, increase vit D levels and healing on XR
Complete reversal my take years

20
Q

Vitamin A deficiency

A

developed countries, vitamin A (retinol) seem as a complication of fat malabsorption when supplementation has been inadequate
S+S are rare, except for impaired adaptation to dark light
Commonest cause of blindness in developing countries
Causes eye damage (xenophthalmia) may progress from night blindness to corneal ulceration and scarring
Also result in increased susceptibility to infection, especially measles
Prevention in developing countries with high prevalence - give a dose of vit A
Supplementation with vit A is recommended for children with measles

21
Q

Causes of short stature

A

Familial
IUGR and extreme prematurity
Constitutional delay of growth and puberty
Endocrine: hypothyroidism, GH deficiency, IGF-1 deficiency and steroid excess
Nutritional/chronic illness: inadequate nutrition, coeliac disease, crohn’s disease, CKD
Psychosocial deprivation
Chromosomal disorders and syndromes: Down’s syndrome, Turner, Noonan and Russel-silver syndrome
Disproportionate short stature: achondroplasia and short-limbed dysplasias

22
Q

History to take for short stature

A

Birth length, weight, head circumference and GA
Pregnancy history: infection, IUGR, drug use, alcohol/smx
Feeding history
Developmental milestones
FHx of constitutional delay of growth and puberty or other diseases?
Features of chronic illness/endocrine
Meds - corticosteroids?

23
Q

Investigations

A

Plot current and previous heights on growth charts
XR of hand and wrist for bone age - delayed in endocrine disorders
FBC - anaemia in coeliac or Crohn’s
Creatinine and electrolytes - chronic renal failure
Calcium, phopshate, ALP - renal and bone disorders
TSH - raised in primary hypothyroidism
Karyotype - turner syndrome shows as 45XO
IgA antibodies/anti-TTG - coeliac
CRP - Crohns
Growth hormone provocation tests (insulin, glucagon) - GH deficiency
Cortisol and dexamethasone suppression test - Cushings syndrome

24
Q

Growth hormone deficiency treatment

A

GH deficiency is treated with biosynthetic GH is given subut daily
Recombinant IGF-1 has been used to treat children with GH resistance and IGF-1 deficiency who wouldn’t have previously responded to GH treatment

25
Q

Indications for growth hormone treatment

A

GH deficiency
Turner syndrome
Prader Willi syndrome
CKD
SHOX deficiency
IUGR

26
Q

Achondroplasia pathophysiology

A

Most common cause of disproportionate short stature
FGR3 on chromosome 4 - sporadic mutation - causes abnormal function of epiphyseal growth plates - restricts bone growth in length
Autosomal dominant
Homozygous gene mutations is fatal in neonatal period

27
Q

Features of achondroplasia

A

short stature - average 4 feet
limbs most affected, normal trunk length
Short digits
Bow legs (genu varum)
disproportionate skull
foramen magnum stenosis
frontal bossing

28
Q

Associations with achondroplasia

A

Recurrent otitis media
Kyphoscolisosis
Spinal stenosis
Obstructive sleep apnoea
Obesity
Foramen magnum stenosis - cervical cord compression and hydrocephalus

29
Q

Mx of achondroplasia

A

MDT
Paediatricians
specialist nurses
physiotherapists
OT
Dieticians
Orthopaedic surgeons
ENT surgeons
geneticists

30
Q

Marfans syndrome

A

Autosomal dominant
Affect gene responsible for fibrillin
Abnormal CT

31
Q

Features of Marfan syndrome

A

Tall stature
long neck
long limbs
long fingers (arachnodactyly)
- ask them to cross their thumb across their palm - thumb goes past opposite edge of hand = positive
- wrap the thumb and pinky finger round wrist - if thumb overlaps fingers = positive result
High arch palate
Hypermobility
Pectus carinatum or excavatum
Downward sloping palpable fissures

32
Q

Associated conditions of Marfan Syndrome

A

Lens dislocation in the eye
Joint dislocation and pain due to hypermobility
Scoliosis
Pneumothorax
GORD
Mitral or aortic valve prolapse with regurg
Aortic aneurysms

33
Q

Mx of Marfans

A

Minimise BP and HR to minimise stress on heart and complications developing - lifestyle changes, avoiding intense exercise and avoiding caffeine and other stimulants = beta blockers and ARBs
Physio - strengthening joints
Genetic counselling - children may be affected by condition
Yearly ECHO
Opthamologist review