Paediatrics Flashcards
(318 cards)
What are the three fetal shunts?
Ductus venosus (umbilical vein to inferior vena cava)Foramen ovale (right atrium to left atrium)Ductus arteriosus (Pulmonary artery to aorta)
How can you keep the ductus arteriosus open and when might you want to keep it open?
Prostaglandin infusionWhen there is a cardiac abnormality causing right->left shunt.
What are features of an innocent murmur?
SoftShortSystolicSymptom-lessSituation dependent
What murmur is associated with an atrial septal defect?
Ejection systolic murmur, crescendo decrescendo
What murmur is associated with a PDA?
Machinery murmur of 2nd heart sound
What murmur is associated with Tetralogy of Fallot?
Ejection systolic murmur heard best at LUSE (pulmonary stenosis)
Which congenital heart conditions cause CYANOTIC heart disease?
Tetralogy of FallotTransposition of the great arteries
What murmur is associated with aortic stenosis? What other features are there?
Ejection systolic murmur, crescendo-decrescendo Narrow pulse pressureSlow rising pulseSoft or absent S2 S4
How is aortic stenosis managed?
If asymptomatic -> observeIf symptomatic -> valve replacement
What is the most common complication of aortic stenosis?
Left ventricular outflow tract obstruction
What conditions are associated with pulmonary stenosis?
Tetralogy of FallotWilliam syndromeNoonan syndromeCongenital rubella syndrome
How does pulmonary stenosis present?
Ejection systolic murmur - louder on inspirationOften found incidentallySymptoms can be fatigue, SOB, failure to thrive
What murmur is associated with pulmonary stenosis? What other signs are there?
Ejection systolic murmur loudest in the pulmonary areaPalpable thrillRight ventricular heave due to RV HypertrophyRaised JVP
What are causes of heart failure in: Neonates, infants, and older children?
Neonates = due to obstructed circulation (Hypoplastic left heart syndrome, aortic stenosis, coaractation of the aorta, interruption of aortic arch)Infants = due to high pulmonary blood flow (ventricular septal defect, atrioventricular septal defect, large PDA_Older children (Eisenmenger syndrome, Rheumatic heart Disease, Cardiomyopathy)
Which heart conditions cause a left to right shunt?
ASDVSDPDA
Which heart conditions cause a right to left shunt?
Tetralogy of FallotTransposition of the great arteries
Which type of shunt causes cyanosis?
Right to left
What are signs of heart failure in neonates/infants?
BreathlessnessSweatingPoor feedingRecurrent chest infectionsFailure to thrive
What are symptoms and signs of atrial septal defect?
Symptoms = wheeze, may be often asymptomaticSigns = Ejection systolic murmurFixed, widely split S2
What is seen on CXR in atrial septal defect?
CardiomegalyEnlarged pulmonary arteriesIncreased pulmonary vascular markings
How does a ventricular septal defect present?
If it’s smaller than the aortic valve (<3mm) = asymptomatic, LOUD pan systolic murmur at LLSE, quiet pulmonary S2, CXR = normal. If larger than aortic valve = presents with heart failure, recurrent chest infections, SOFT pan systolic murmur, LOUD pulmonary S2. CXR shows signs of heart failure.
How is a ventricular septal defect managed?
Smaller asymptomatic VSD = close spontaneouslyLarger symptomatic VSD = Surgical repair required
What are signs of a patent ductus arteriosus?
Continuous machinery murmurLeft subclavicular thrillBounding collapsing pulseWide pulse pressureHeaving apex beat
How is a patent ductus arteriosus managed?
In preterm infants can give Indomethacin/Ibuprofen to help close the PDAIf asymptomatic - wait to see if it closes by 1 year If symptomatic - needs closing