Sick term infant Flashcards
Where can infection source from in the newborn?
¥ Blood stream - bacteraemia/septicaemia
¥ CNS - meningitis
¥ Respiratory - pneumonia
¥ GU – UTI
Others:
Ð Skin
Ð Bone
Ð GI - necrotising enterocolitis
What bacterial infection is seen in the newborn? 5
¥ Group B Streptococcus – this is most common and comes from mother birth canal
¥ E. coli – most common gram –ve infection
¥ Listeria myogenes – rarely seen
¥ Staphylococcus aureus – staphylococcus esp. if have co-morbidities and later on
¥ Staph epidermidis – as above
What viral infections are seen in the newborn?
¥ Cytomegalovirus
¥ Parvovirus
¥ Herpes viruses
¥ Enteroviruses
Others
¥ Toxoplasma gondii
¥ HIV
¥ Syphilis - Treponema pallidum
what is hypoxic ischaemic encephalopathy?
¥ Multi organ damage due to tissue hypoxia
¥ Lack of oxygen leading up to or during delivery
What is the presentation of hypoxic ischaemic encephalopathy?
¥ Poor Apgar scores – active resuscitation required
¥ Commonly baby is born in a collapsed state, doesn’t start breathing properly
¥ Small no. of babies will have v. significant lack of neurodevelopment
¥ Neurodevelopmental sequeli - variable prognosis
What is transient tachypneoa of the newborn?
- In what clinical picture is this commonly seen
- what is the treatment?
- Excess fluid in lungs directly related to birth
- Diagnosis of exclusion
- Most often seen in 35+ week gestation babies who are delivered by caesarian section without labor.
- Usually, this condition resolves over 24–48 hours.
- Treatment is supportive and may include supplemental oxygen and antibiotics.
Why would a newborn have a pneumothorax?
• Spontaneous or secondary to active resuscitation
o Active resuscitation can be due to meconium aspiration
What is hydrops foetalis? what can this present as?
Tachypnoea
-¥ Commonest cause of hydrops foetalis is rhesus disease
¥ Mum is +ve and baby is -ve
Chromosomal
What is persistent pulmonary hypertension of the newborn (PPHN)
In-utero lung resistance is very high and baby is oxygenated via placenta, when baby is born this resistance falls and blood is oxygenated via lungs – however sometimes the lung pressure stays high = PPHN (giving oxygen is no use
What congenital cardiac disease exists?
¥ Tetralogy of Fallot ¥ Transposition of great arteries ¥ Coarctation of the aorta (radio-femoral delay) ¥ TAPVD ¥ Hypoplastic heart – usually left side
What 2 congenital respiratory diseases can occur?
Tracheo-oesophageal fistula
o Persistent vomiting
o Insert nasogastric tube – it won’t reach stomach
Diaphragmatic hernia
o Commonly LHS
o Allows variable amount of abdo. Contents into chest (liver/kidney/spleen)
o Can cause complication of lung hypoplasia as that lung is constrained and can’t grow
What surgical complications of the newborn exist?
meconium ileus malrotation duodenal atresia pyloric stenosis eosophageal atresia
Meconium ileus:
- what is this
- clinical features
Small bowel obstructed by meconium
- bilus vomit
- not passed meconium
- abdo. distension/mass
Malrotation
- what does this predispose to?
- clinical features
Predisposes to midgut volvulus
- sudden bilous vomiting is malrotation until proven otherwise
- haematemesis
- abdo distension and tenderness
Duodenal atresia:
- what is this
- clinical features
congenital absence or complete closure of a portion of the lumen of the duodenum.
- polyhydramnios
- distended fluid filled stomach
- vomiting +/- bile
- distension
- feed intolerant