Paeds Flashcards
name the 3 shunts in foetal circulation
foramen ovale
ductus arteriosus
ductus venosus
name the 4 left to right shunts
atrial septal defect
ventricular septal defect
atrio-ventricular septal defect
patent ductus arteriosus
describe an ASD and what are the most common types
hole connecting the 2 atria = leads to a shunt of blood moving from LA to RA = high pressure blood to lungs = RH failure and overload + pulmonary hypertension
ostium secundum = 80%
ostium primum = partial ASD
what are the symptoms of ASD
often asymptomatic in childhood or:
- sob
- difficulty feeding
- poor weight gain
older:
- recurrent chest - infections/wheeze
- heart failure
what are the clinical signs of ASD
fixed and widely split 2nd heart sound = pulmonary/aortic valves close at different times
ejection systolic murmur at left sternal edge in pulmonary area
possible palpitations
what investigations for ASD
chest XR = cardiomegaly wiht dilatation of pulmonary arteries
ECG = partial RBBB + right axis deviation
(partial ASD = left axis deviation)
echoCG = mainstay = shows anatomy
what is the management of ASD
small/asym = W&W
surgical closure/catheter closure
Anticoags in adults to prevent stroke complication
what is the most common cause of meningitis in the UK
neisseria meningitidis
what are the sepsis 6
WITHIN AN HOUR
1. high flow oxygen
2. blood cultures
3. obtain IV access + give IV ceftriaxone 80mg/kg
4. fluid resus of 20ml/kg 0.9% saline
5. measure lactate
6. measure urine
what is klinefelter syndrome and what are its features
XXY chromosomes = primary hypogonadism
- azoospermia + gynaecomastia
- reduced secondary sexual characteristics
- osteoporosis
- tall
- reduced IQ
** increased risk breast cancer
what is hypogonadotrophic hypogonadism
deficiency of LH and FSH
what is hypergonadotrophic hypogonadism
lack of response to LH/FSH by the gonads
what is the cause of hypOgonadotrophic hypogonadism and name some causes
= abnormal hypothalamus/pituitary function
- damage
- GH deficiency
- hypothyroidism
- hyperprolactinaemia
- serious chronic conditions (IBD/CF)
- excessive diet/exercise
- Kallman syndrome
what is the cause of hypERgonadotrophic hypogonadism
= gonads no response = no negative feedback = increased LH/FSH
- previous gonad damage
- congenital absence of gonads
- kleinfelters syndrome XXY
- turners syndrome XO
what is kallman’s syndrome
hypogonadotrophic hypogonadism
anosmia (no smell)
visual problems
craniofacial abnormalities
what is turners syndrome
45 X0
- often results in miscarriage
- lymphoedema hands/feet in neonate
- short stature (height 20cm below normal)
- gonadal failure
- webbing of neck/low hairline/big ears/high arched palate
- CVS malformations
- horseshoe kidney
name the causes of short stature
familial
constitutional delay in growth and development
malnutrition
chronic disease (IMD/CHD)
endocrine (hypothyroidism)
genetics (downs/turners)
skeletal dysplasia
how is constitutional delay in growth and puberty (CDGP) diagnosed
history/examination
XR of hand/wrist
bone age compared to actual age
name the causes of overgrowth with impaired final height
precocious puberty
congenital adrenal hyperplasia
hyperthyroidism
mcAlbright
name the causes of overgrowth with increased final height
androgen deficiency/oestrogen resistance
GH excess
Kleinfelter sydrome XXY/Marfan syndrome
what is psycho social short stature
seen over 3
emotional rejection/abuse associated
50% show reversible GH deficiency
what growth centile constitutes overweight and obese
overweight = BMI above 85th percentile
obese = BMI above 95th percentile
describe puberty in girls
breast bud first sign
early = under 8
late = over 13
describe puberty in boys
testicular enlargement first sign in boys
early = under 9
late = over 14