Congenital heart disease Flashcards
Congenital Heart Disease ?
Abnormality of the structure of the heart/great vessels present at birth
Cyanotic defects
Cyanosisoccurs whendeoxygenated bloodenters thesystemic circulation. Cyanotic heart disease occurs when blood canbypassthepulmonary circulationand thelungs. This occurs across aright-to-left shunt. Aright-to-leftshunt describes any defect that allows blood to flow from theright side of the heart(thedeoxygenatedblood returning from the body) to theleft side of the heart(the blood exiting the heart into the systemic circulation), without travelling through the lungs to get oxygenated.
Acyanotic heart disease
where the blood contains enough oxygen but it’s pumped abnormally around the body. babes may present as asymptomatic but they may develop symptoms at older age
What are the different investigations for Congenital Heart Disease ?
Antenatally
-
Newborn screening
Cyanosis events of low oxygen
waht’s the management antenatally with duct dependent lesion
IV PGE2
what are the clinical examinations for newborn screening
- 24 hour clinical examination include femoral pulses , heart sounds and check for murmurs
- Pre and post ductal saturation measurement
when does cyanosis mostly happen ?
shortly after the first birth
symptom of respiratory disease and persistent pulmonary hypertension of the newborn
Duct dependent circulation
present in 4-7 days
absence of pulses due to hepatomegaly
treated with IV PGE2
Cardiac failure symptoms
- Failure to thrive
- Slow/reduced feeding
- Breathlessness (especially when feeding)
- Sweatiness
- Hepatomegaly (disruption in blood homeostasis)
- Crepitations
pulmonary stenosis how and when it might present
will have a murmur
AVSD how and when it might present
Antenatally detected
Cyanosis-Quite subtle
Cardiac failure By around 4-8 weeks of age
Tetralogy of Fallot how and when it might present
Antenatal diagnosis
Murmur
Cyanosis
Congestive cardiac failure
Collapse at duct closure
Hypoplastic left heart syndrome
Antenatal diagnosis
Collapse at time of duct closure
Ductus Arteriosus in foetal In Adults ?
Ligmentum arteriouseum
(in foetal it allow blood to bypass the pulmonary circulation)
Ductus venosus roll ?
connect the umbilical venin to the Inferior vena cava