Congenital heart disease Flashcards
Abherrent subclavian artery
- right subclavian artery forms of the left side of heart rather than right
- needs to loop round the back of the trachea/oesophagus to reach the right side
- risk of strangulation
Double aortic arch
- Right arch forms in addition to Left arch
- Risk of strangulating the trachea and oesophagus
Co-archtation of the aorta
Narrowing of aorta
associated with the ductus arteriosus becoming the ligaments arteriosus
can be proximal to the ductus- preductal
can be distal- post-ductal
in 90% of cases occurs opposite to ductus arteriosum- muscle from ductus is incorporated- narrowing of the D.A. leads to further narrowing
Patent ductus arteriorsus
- ductus arteriosum does not close properly
- blood can continue to bypass the lungs from the RV
Ventricular deptal defect
-movement of blood from RV to LV
who is patent ductus arteriosus more common in?
females
who is VSD more common in?
males
Signs of Co-archtation of the aorta
- poor blood circulation
- cold legs
IVC/SVC defects
- double IVC
- absent IVC
- double SVC
- left SVC
Dextrocardia
- apex found on right rather than left
- associated with Situs inversus- autosomal recessive condition where all organs are reversed
Transposition of the major vessels?
- cause of cyanosis in babies
- causes mixture of circulatory and systemic circulation
- associated with atrial and ventricle septal defects
Teratology of Fallot?
4 cardiac failures at once:
- hypertrophy of RV
- intraventricular septal defect
- pulmonary stenosis
- overriding aorta
what is an overriding aorta?
-aorta positioned over ventral septal defect
Ectopia cordis
heart is positioned outside the thorax either entirely or partial
What does P.D.A lead to
Distress respiratory syndrome
Lack of respiratory surfactant
Failure of muscular wall to contract
