Congenital Heart Disease - Review Day of Test Flashcards
what is the most common birth defect?
- congenital heart disease
disorder with 22q11
- truncus arteriosus
- tetralogy of Fallot
disorder with down syndrome
- ASD
- VSD
- AV septal defect
- endocardial cushion defect
disorder with congenital rubella
- septal defects
- PDA
- pulmonary artery stenosis
defect with Turner syndrome
- coarctation of aorta
defect with Marfan’s syndrome
- aortic insufficiency and dissection
defect with infant of diabetic mother
- transposition of great vessels
normal pressure gradient in the heart
- L pressure > right pressure
transition from fetal circulation
- closing of patent foramen ovale
- closing of patent ductus arteriosus
long standing left to right shunts
- increase pulmonary arterial pressure and volume
- pulmonary arteriolar hypertrophy
- reversal to right to left shunt
eisenmenger’s syndrome
- reversal to right to left shunt
- deoxygenated blood flows to body
- causes early cyanosis
acyanotic presentation
- intracardiac or vascular stenosis
- valvular regurgitations
- left to right shunts
cyanotic presentation
- poorly oxygenated blood shunted from right heart to left
- blood bypass fetal lungs
O2 sat of cyanotic presentation
- 80-85%
acyanotic conditions
- atrial septal defect
- ventricular septal defect
- patient ductus arteriosus
- congenital aortic stenosis
- pulmonic stenosis
- coarctation of aorta
cyanotic conditions
- truncus arteriosus
- transposition of the great vessels
- tricuspid atresia
- tetralogy of fallot
- total anomalous pulmonary venous return
atrial septal defects caused by
- defect in septum between right and left atria
what happens in atrial septal defects
- blood from LA moves to RA
- RV volume load and enlargement
- delayed closing of pulmonic valve
result of delayed closing of pulmonic valve
- fixed split S2 murmor at upper left and right sternal borders
atrial septal defects due to
- ostium secundum (most common)
- osmium primum
- sinus venosus
- patient foramen ovale
ostium secundum defect
- due to inadequate formation of septum secundum or excessive resorption of septum primum
ostium primum defect
- inferior portion of septum fails to fuse with endocardial cushion
sinus venosus defect
- unroofing of area between pulmonary veins and RA
patent foramen ovale
- persistence of foramen ovale
- atrial septa fail to fuse
- source of paradoxical emboli
how would a paradoxical emboli form
- DVT move from RA to LA
- go into body/brain and block arteries
symptoms of ASD
- most usually asymptomatic
adults with ASD
- may have atrial tachyarrhythmia due to right atrial enlargement
percent of membranous ventricular septal defects
- 70%
percent of muscular ventricular septal defects
- 20%
VSD due to
- defect in septum that separates right and left ventricles