Neonatology from busy SpR Flashcards
Breastfeeding + Aspirin
Risk Reye’s sydnrome
BF + Bromocriptine/carberfoline
Suppressess lactation
BF + Caribmazole
Affect neonatal thyroid function, nodular goitre
BF + Chlorampheniclol
Leucopenia, aplastic anaemia acid
BF + cyclophosphamide
Discotinune during BF and for 36hr after stopped
BR + diazepam
Lethargy, drowiness, hyperbilirubimae
Erbs
- Nerve roots
- Cause
- Symptoms
C5/C6
Excessive displacement of head to the opposite side or depression of the shoulder on same side
Medially roasted and forearm pronated (waiters tip), sensory loss of lateral side of arm/
Klumpke’s
- Nerve roots
- Cause
- Symptoms
C8/T1
Small muscles of claw hand, sensory loss of medial side of arm
What are the 4 key adaptations of the fetal circulation?
- Ductus venous
(oxygenated blood coming from placenta umbilical vein, divides 1 to liver and ductus arterioles into inferior vena cava) - Forman ovale - semi oxygenated blood from IVC & SVC into R atrium shunts to L side of heart (low pressure) and into aorta
- Ductus arteriosus - blood in pulmonary artery is connects to ductus arteriosus, placenta releases prostaglandin which keeps this open
- Umbilical arteries - blood from aorta sends blood to body, common iliac which splits into internal. Umbilical arteries carrying deoxygenated blood back to placenta
What are the remnants of each fetal adaptation called after birth?
Foramen vale - fossa ovalis
Ductus arteriosus - ligament arteriosus
Umbilical arteries - proximal superior vesical arteries, distal medial umbilical arteries
Umbilical vein - round ligament of the liver
Ductus venous - ligament venous
What proportion of adults have a patent foramen ovale?
25-30%
In what conditions is the foramen ovale less likely to close?
Born premature
Congenital rubella infection
In what % of cases is a patent ductus arteriosus isolated?
90%
10% other congenital heart defects (tetralogy- necessary for survival)
Pink upper limbs, blue lower limbs
How common are cardiac congenital malformation
7-8/1000
6-10% all infant mortality
How often does neonatal examination fail to detect CHD?
50%
What is eisenmenger syndrome?
Left to right heart shunt that not corrected leading to pulmonary HTN, R ventricular becomes hypertrophied. R to L shunt.
Hypoxia - polycythemia, clubbing
How is combined pulse oximetry measured in neonate
Pre-ductal - Right hand
Post-ductal - any foot
Improves detect of CHD to 90%
What is considered a normal combined pulse oximetry?
Both >95% and less to equal to 2% difference
At birth lower, in health term baby does not reach 90% in 1st 5 mins and gradient remains
Screening normally done 4-12 hours after birth
How to calculate APGARs
What scores of APGAR are considered normal?
> 7 are good
4-6 fairly low
<3 criticality low
Normally measured at 1 and 5 mins
Draw diagram showing location caput, cephalohaematoma, subgleal haemorrhage, extradural haemorrhage
Cephalohaematoma
- How common
- Location
- Association
- When does it present
1%
bleeding beneath periosteum, does not cross suture line
Associated with jaundice
May not appear until 2nd day of life, takes severeal weeks to disappear
Subglaleal hemorrhage
- How common
- Location
- Association
- RF
- Rare
- Bleeding beneath aponeurosis, crosses midline
- Associated with shock, anaemia, neonatal death
- Increased risk ventouse delivery
How to sub-arachnoid haemorrhage occur? Progonsis>
Small vessels normally veins
Silent bleed, may present with fits
Good prognosis