what is Hirschsprung’s disease
aganglionic segment of bowel due to a developmental failure of the parasympathetic Auerbach and Meissner plexuses.
condition associated with hirschsprung’s disease
presentation of hirschsprung’s disease
Mx of Hirschsprung’s disease
Features of innocent murmurs
ALL S
- Soft
- Short
- Systolic
- Symptomless
- Situation dependent (the murmur gets quieter with standing, or only appears when the child is unwell or feverish)
pansystolic murmurs
causes of ejection systolic murmurs
Heart defects that can cause a right-to-left shunt, and therefore cyanotic heart disease, are:
Causes of anaemia in infancy
Physiologic anaemia = MC
The other causes of anaemia in infants are:
- Anaemia of prematurity
- Blood loss
- Haemolysis
- Twin-twin transfusion
Haemolysis is a common cause of anaemia in infancy. There are a number of causes of haemolysis in a neonate:
- Haemolytic disease of the newborn (ABO or rhesus incompatibility)
- Hereditary spherocytosis
- G6PD deficiency
what is physiological anaemia of infancy
normal dip in haemoglobin around 6-9 weeks of age in healthy term babies
causes of anaemia of prematurity
test to check for immune haemolytic anaemia
direct Coombs test
causes of anaemia in older children
Rarer causes
- sickle cell
- Thalassaemia
- Leukaemia
- Hereditary spherocytosis
- Hereditary eliptocytosis
- Sideroblastic anaemia
Symptoms specific to iron deficiency anaemia:
Sx of anaphylaxis
how to confirm anaphylaxis
mast cell tryptase within 6hrs
signs and sx of appendicitis
mx of acute asthma
Can consider
7.IV salbutamol
8. IV aminophylline
9. IV magnesIum sulphate
CALL SENIOR
How to diagnose asthma
> 5 y/o spirometry
FeNO
Peak Flow
Direct bronchial challenge test
steroids for eczema (mild, moderate, potent)
most common organism in bacterail infection of eczema
staph aureus
what is eczema herpeticum caused by
herpes simplex virus (HSV) or varicella zoster virus (VZV)
HSV1 most common
presentation of eczema herpeticum
widespread, painful, vesicular rash
+ systemic symptoms such as fever, lethargy, irritability and reduced oral intake.
There will usually be lymphadenopathy
what is biliary atresia
section of the bile duct is either narrowed or absent –> cholestasis –> accumulation of conjugated bilirubin