Growth, Puberty and Paediatric Problems Flashcards
What do you use to measure height in children?
Wall stadiometer
What is measured in children under the age of two instead of height?
Length
When is measuring sitting height useful?
In children you suspect have a short spine or short limbs
What measurement is taken in children of the head?
Head circumference
Around which part of the head do you take measurement of a child’s head circumference?
WARNING COMMON EXAM QUESTION but idk if it’s in like an OSCE situation haha
Around the forehead for maximal circumference
How can bone age be assessed in children?
X-ray of left wrist and compare to a standardised one using Tana Whitehouse 20 bones.
Each bone is given a score and added together to give bone age
If a child has delayed bone age, what does this sugget?
That they will be a late developer
What is used for the staging of puberty?
Tanner method
What is measured in the Tanner method, used to stage puberty?
Breast development
Genital development
Pubic hair
Axillary hair
What is meant by stage 1 o the Tanner method for staging puberty?
No evidence of puberty
What is meant by stage 2 of the Tanner method for staging puberty?
The beginning of puberty
What is used to determine testicular maturation?
Prader Orichdometer
List some factors which influence height.
Age
Sex
Race
Nutrition
Parental heights
Puberty
Skeletal maturity
General health
Socio-economic status
What are the first three stages of grwoth?
Infantile
Childhood
Puberty
Who goes through puberty first- girls or boys?
Girls
What is the average age a girl goes through puberty?
10-1-.5
What is the average age a boy goes through puberty?
11-12
Which hormones lay dormant pre-puberty and then release during puberty?
Gonadotropins e.g. LH and FSH
At which point of the day during puberty does most LH and FSH get released?
During the night
Which hormone stimulates the hypothalamus to produce LH and FSH?
GnRH
What happens first during puberty in girls?
The breasts begin to bud (B2)
Menarche?
First period/menstruation
What is the earliest sign of puberty in a boy?
Testicular enlargement (T2)
If a child is obese, do they go through puberty more quickly or slowly than a thinner child?
More quickly
-> obesity triggers puberty earlier
List some of the indications leading to referral of a growth disorder?
Extreme tall or short centiles
Height below target height
Abnormal height velocity
History of chronic disease
Obvious dysmorphic syndrome
Early/late puberty
What is meant by familial short stature?
Short parents having a short child
What is meant by constitutional delay of growth and puberty?
Children that grow at a normal steady pace but as their peers go into puberty, they do not
What is the bone age like in those with constitutional delay of growth and puberty?
Delayed bone age
How is constitutional delay of growth and puberty managed?
Short course of testosterone which induces puberty and a growth spurt
If a child is small for their age at about 3-4yrs, what treatment can be offered?
Growth hormone treatment
What are some of the pathological causes of short stature?
Undernutrition
Chronic illness
Iatrogenic (steroids)
Psychological and social
Hormonal
Syndromes e.g. Turner’s syndrome
Which thyroid related disorder can lead to child stopping growing?
Acquired hypothyroidism
Turner syndrome involves short stature. What are some of the other features?
Webbed/short neck
Spaced nipples
Infantile proportions with short limbs
Who does Turner’s syndrome affect?
Females
Which syndrome can affect both boys and girls and involves short stature?
Prader-Willi syndrome
What treatment benefits those with Turner’s syndrome or Prader-Willi syndrome?
Growth hormone treatment
What is another feature of Prader-Willi syndrome?
Obesity
Name the most important stages of puberty for boys and girls.
Boys- T3-4
Girls- B2
When is puberty considered to be early in boys?
If <9
When is puberty considered to be delayed in boys?
> 14
->more common than early puberty in boys.
When is puberty considered to be early in girl?
<8yrs
When is puberty considered to be delayed in girls?
> 13yrs
-> in girls, puberty is more likely to be early than delayed
Does CDGP (constitutional delay of growth and puberty) mainly affect girls or boys?
Boys
What is the chromosome type of Turner’s syndrome, a condition which can delay puberty?
45X
What is the chromosome type of Kilneflter syndrome, a condition which can delay puberty?
47XXY
Name two chronic diseases which can cause delayed puberty.
Asthma
Crohn’s
What are some of the signs of central precocious puberty?
Pubertal development
Growth spurt
Advanced bone age
If you suspect a patient to have precocious puberty, what should you do?
Refer them
Pituitary imaging is often done in these patients
What happens in precocious pseudopuberty?
Early puberty which is not really puberty but an activation of another load of LH and FSH.
Secondary pubic characteristics occur e.g. pubic and axillary hair
If a baby has ambiguous genitalia, what should you do?
Do not guess the sex- tell parents it’s not clear
MDT approach
Examination of gonads and internal organs
Karyotype
Which life threatening condition do you want to rule out if a baby is born with ambiguous genitalia?
Congenital adrenal hyperplasia
What are some of the causes of congenital hpothyroidism?
Athyreosis/hypoplastic/ectopic
Dyshormonogenic
What happens in congenital hypotthyroidism?
Child is born without a thyroid gland/ functioning thyroid gland
What has helped to reduce pretty much all cases of congenital hypothyroidism?
Newborn screening via the heel prick
What is the most common cause of acquired hypothyroidism?
Autoimmune thyroiditis- Hashimoto’s
What are some of the issues acquired hypothyroidism can cause in childhood?
Lack of height gain
Pubertal delay
Poor school performance
What is used to assess obesity?
Weight/height
BMI
Waist circumference
Skin folds
If someone is short and obese, what should be highlighted?
This is abnormal
How do children with hypothyroidism present?
Goitres
Paler
Flat facials
What are some of the causes of childhood obesity?
Simple obesity
Drugs
Syndromes
Endocrine disorders
Hypothalamic damage
List some drugs which can cause weight gain, potentially leading to childhood obesity
Insulin
Steroids
Antithyroid drugs
Sodium valproate
List some syndromes which can cause a child to develop obesity.
Prader-Willi syndrome
Laurence-Moon-Biedl syndrome
Pseudohypoparathyroidism type 1
Down’s syndrome
List some of the endocrine disorders which can cause obesity.
Hypothyroidism
GH deficiency
Hypothalamic lesion
What are some of the treatments for childhood obesity?
Diet
Exercise
Psychological input
Drugs??
How do endocrine disorders cause childhood obesity?
Growth failure
How do hypothalamic causes cause childhood obesity?
Loss of appetite control