Paeds Peer Teaching 1 Flashcards
A baby has congenital heart disease and is breathless. Which direction is the shunt in? Give 3 examples of conditions which give this picture.
L to R shunt
- VSD
- PDA
- ASD
A baby has congenital heart disease and is cyanotic. Which direction is the shunt in? Give 2 examples of conditions which give this clinical picture.
R to L shunt
- Tetralogy of Fallot
- Transposition of the Great Arteries
A baby has a VSD (Ventricular Septal Defect).
Which direction is the shunt?
List 4 signs / symptoms.
L - R shunt
- Tachycardia
- Tachypnoea
- FTT (Failure to thrive)
- Heart failure
What kind of murmur would you hear if a baby has a VSD? Where would you hear it?
Which direction is the shunt?
- Pansystolic murmur
- L lower sternal edge
- Shunt is L to R
What is the management of a VSD?
Small - will close spontaneously.
Large - surgical closure + diuretics
What signs and symptoms would you see in a child with ASD (Atrial Septal Defect)?
Which direction is the shunt?
- May be asymptomatic
- Tachypnoea
- FTT
- Wheeze
Shunt direction: L to R
What murmur will you hear (and where) if a child has an Atrial Septal Defect?
Which direction is the shunt?
Ejection systolic murmur (L upper sternal edge)
Shunt direction: L to R
What signs and symptoms would you see in a child with a PDA?
Which murmur would you hear and where?
- Tachypnoea
- FTT
- Bounding pulse
Murmur: Continuous machinery murmur (below L clavicle)
What is your management of a patient with ASD (atrial septal defect)?
Small - close spontaneously
Large - Surgical closer
What is your management of a patient with a PDA?
- NSAIDs (Indomethacin)
or - Surgical ligation
What are the 4 components of Tetralogy of Fallot?
- Pulmonary Stenosis
- VSD
- Overriding aorta
- RVH
What signs and symptoms would you see in a child with Tetralogy of Fallot?
- Severe cyanosis
- Hypercyanotic spells on: exercise, crying, defecating
- Ejection systolic murmur
What is your management of a child with Tetralogy of Fallot?
Which direction is the shunt?
Is this cyanotic or acyanotic?
Surgery at 6 months to close VSD, relieve pulmonary out tract obstruction
R to L
Describe the pathophysiology of Transposition of the Great Arteries.
Pulmonary artery and aorta ‘swap’.
RV > Aorta > Body > RA
LV > Pul artery > Lungs > LA
What are the signs and symptoms of Transposition of the Great Arteries?
- Often present on day 2 of life (after Ductus arteriosus closes) with severe life threatening cyanosis.
What is your management of Transposition of the great arteries going to be?
- Maintain PDA (prostaglandin infusion)
- Surgical: atrial sepstostomy and correction
A ‘well’ child has Pulmonary Stenosis.
What is the pathophysiology of this?
What signs and symptoms might you see?
- Pulmonary valve leaflets partially fused together > obstructs RV outflow
- Asymptomatic
- Ejection systolic murmur (L upper sternal edge) and palpable thrill
A ‘well’ child has Aortic stenosis.
What is the pathophysiology of this?
What signs + symptoms might you see?
What murmur will you hear?
- Aortic valve leaflets partially fused together > obstructs LV outflow
- Reduced exercise tolerance, chest pain / syncope on exertion
- Ejection systolic murmur (R. upper sternal edge) AND Carotid thrill
A ‘sick’ child has Coarctation of the Aorta. What is the pathophysiology behind this? Describe the symptoms.
Narrowing of the aorta - commonly at ductus arteriosus.
- Symptoms become more severe with age.
- Asymptomatic, then SOB, arterial hypertension, intermittent claudication.
What murmur will you hear if a patient has coarctation of the aorta?
Describe the patient’s pulse.
- Ejection systolic murmur (L upper Sternal edge).
- Radial:radial / radial:femoral delay.
What is the management of a patient with Coarctation of the Aorta?
- Stent
- Surgical repair
What are the 4 S’s of harmless murmurs?
- Soft
- Systolic
- aSymptomatic
- L Sternal edge
What investigations should you do if you detect a murmur?
- Antenatal ECHO
- Neonatal ECHO, ECG, CXR
What syndrome arises if R to L shunt is not treated?
Eisenmenger’s syndrome.
- Long standing R to L shunt increases pulmonary pressure over time, leading to thickening of the pulmonary arteries. This causes RVH and increases pressure in RV, reversing the shunt to L to R.