Lecture 5 & 6 Growth and Develop and Endocrine Problems in Childhood Flashcards
Name measurement techniques performed to asses a Childs growth and development
Height
Length
Sitting Height
Head circumference
Name charts used for measuring and plotting data in assessing growth and development
RCPCH UK 2-18 growth chart Birth centiles Parent height comparator Mid parental gentile scale Predicted adult height scale Target height
How is the potential height if a child calculated
add together the father’s height and the mother’s height divide this by two
add 7cm to the total
this gives the mid parental centile
B1
Prepubertal
B2
Brest bud
Enlargement of areola
B3
Further enlargement of breast and areola
B4
Areola and papilla form a secondary mound
B5
Mature stage
G1
Prepubertal
G2
Enlargement of scrotum and testes
G3
Enlargement of penis length and further growth of testes
G4
Increased size of penis with growth in breadth and development of glands
G5
Adult genitalia
PH1
Prepubertal
PH2
Sparse growth of long hair, slightly pigment
PH3
Darker, coarser and more curled hair, sparsely spreading over junction of pubes
PH4
Hair adult in type, but covering smaller area than adult, no spread to medial surface of thighs
PH5
Adult hair in type and quantity
T 1-3ml
Prepubertal
T4ml +
Pubertal
T12-25ml
Adults
Small testes are an indicator of what
primary or secondary hypogonadism
Factors influencing height
- Age
- Sex
- Race
- Nutrition
- Parental Heights
- Puberty
- Skeletal maturity
- General Health
- Chronic disease
- Specific growth disorders
- Socio-economic status
- Emotional well-being
Describe normal growth in the infinite stage
Rapid period of growth 0-2 years
Depends in factors such as nutrition and IGF1 & IGF2
Describe the normal growth during childhood
Long phase of growth from 2-12 years
Slower, slightly decelerating curve
More dependent on growth hormone and thyroxine
Describe the normal growth during the pubertal stage
From around 12 to final height
Dependent in the sex steroid hormone (testosterone and oestrogen)
What are the most important pubertal stages in girls and boys
• Breast budding (Tanner stage B2) in a girl
• Testicular enlargement (Tanner stage G2-T 3-4ml) in boy
Earliest sign of puberty
Indicator for growth disorder referral
- Extreme short or tall (off centiles)
- Height below target height
- Abnormal height velocity (crossing centiles)
- History of chronic disease
- Obvious dysmorphic syndrome
- Early/late puberty
Common causes of short stature
- Familial
- Constitutional- temporary delay in the skeletal growth
- SGA/IUGR
Pathological causes of short stature
• Undernutrition • Chronic illness • Iatrogenic (steroids) • Physiological and Social • Hormonal (GHD, hypothyroidism) • Syndrome Turner Prader-Willi Noonan’s Achondroplasia
Constitutional delay of growth and puberty mainly occurs in
Boys
People with FH in dad or brother
Other causes of delayed puberty
- Gonadal dysgenesis (Turner 45X, Klinefelter 47 XXY)
- Chronic disease (Crohn’s, asthma)
- Impaired HPG axis (hypothalamic-pituitary-gonadal)- septo-optic dysplasia, craniopharyngioma, Kallman’s syndrome
- Peripheral (cryptorchidism, testicular irradiation)
Management of new born with ambiguous genitalia
Do not guess the sex
MDT approach (paed. endo, surg., neonatologist, geneticist, psychologist)
Exam: gonads/internal organs
Karyotype
Exclude congenital adrenal hyperplasia- risk of adrenal crisis in first 2 weeks of
Causes of congenital hypothyroidism
Athyreosis ( absence or functional deficiency of the thyroid gland) /hypoplastic (incomplete development)/ectopic (not located in its usual position)
Dyshormonogenic
Whats the most common cause of acquired hypothyroidism
autoimmune thyroiditis (Hashimoto’s)
What childhood issues an arise with acquired hypothyroidism
Lack of height gain
Pubertal delay
Poor school performance
What BMI is classified as obese
BMI> 97.5th centile or SD >2
What BMI is classified as overweight
BMI >85th centile or SD >1.04
How is Obesity assessed
- Weight
- BMI
- Height
- Waist circumference
- Skin folds
- History and examination
- Complications
Name complications of obesity
- Metabolic syndrome
- Fatty liver disease
- Gallstones
- PCOS
- Nutritional deficiencies
- Thromboembolic disease
- Pancreatitis
- Central hypoventilation
- Obstructive sleep apnoea
- GORD
- Orthopaedic problems
- Stress incontinence
- Injuries
- Psychological
- LVH
- Atherosclerotic CVD
- Right sided heart failure
Drugs that causes obesity
Insulin
Steroids
Antithyroid drugs
Sodium valproate
Syndromes that are linked to obesity
Prader Willi
Laurence-Moon-Biedl syndrome
Pseduohypoparathyroidism type 1
Down’s syndrome
Endocrine disorders linked to obesity
Hypothyroidism Growth Hormone deficiency Glucocortiocoid excess Hypothalmic lesion (tumour/trauma/infection) Androgen excess Insulinoma Insulin resistance syndromes Leptin deficiency Growth failure
Symptoms of Type 1 diabetes in children
Thirst
Weight Loss
Tired
Using the Toilet more
Symptoms of type 1 diabetes in children under 5
- Heavier than usual nappies
- Blurred vision
- Candidiasis (oral, vulval)
- Constipation
- Recurring skin infections
- Irritability, behaviour change
Steps involved in making an early diagnosis for children with suspected diabetes
THINK symptoms
Test immediately
Telephone
if finger prick capillary glucose test is >11mmol/l the patient is
Diabetic
if finger prick capillary glucose test is <11mmol/l the patient is
not diabetic and there is another cause of the symptoms
Symptoms fo DKA
- Nausea & Vomiting
- Abdominal pain
- Sweet smelling ketotic breath
- Drowsiness
- Rapid, deep sighing respiration
- Coma