Congenital Disease Flashcards
ASD echo
RV enlargement
TR, pHTN
Color flow for shunt
Looks at PVs
Secundum ASD
Most common
Central / fossa ovalis
Device closure
Associated with Holt-Oram
Primum ASD
AV septum / inlet to ventricle
Portion of septum between septal TV leaflet and anterior MV leaflet
Primum ASD echo
Cleft mitral valve anterior leaflet, MR
LVOT obstruction (enlongated outflow tract, accessory chordal tissue)
VSD
LAD on EKG
Sinus venous ASD
Abnormal communication between SVC, pulmonary vein and LA
Anomolous PVs in most
Big right heart
Unroofed coronary sinus
Absence of portion of common wall between CS and LA
A/W persistent left SVC
PFO
Potential opening between RA and LA
Does not cause RV volume overload
Atrial septal aneurysm
Redundant and mobile atrial septum flap
Phasic excursion of 10 mm from midline or total of 15 mm during cardiac cycle
A/w PFO or multiple fenestrations
Chiari network
Meshwork connecting edge of IVC and coronary sinus with Crista terminalis
A/W PFO and ASA
VSD
Left to right shunt
Causes left heart dilatation
Types of VSD
Outlet / sub arterial
Membranous
Inlet
Muscular
Outlet / sub arterial VSD
Located in outlet septum
Under PV and AV
AR due to prolapse of AV cusps
Membranous VSD
Between TV and AV
Most common
TV may become aneurysmal
AR
Inlet VSD
At inlet to ventricle (AV septal defect)
Immediately below both AV valves
Trisomy 21
Muscular VSD
Muscular portion of septum
Children
Not near valves, close with device
Apical 4, parasternal views
VSD in PLAX
Right below AV = membranous or subarterial
Further out = muscular
VSD in RV inflow/outflow SAX
9-12:00 = membranous 12-3 = subarterial
VSD in LV SAX
9-11 = inlet 11-2 = muscular
VSD apical 4
Base of septum = inlet
Rest of septum = muscular
VSD in apical 5
Base of septum = membranous
Rest of septum = muscular
RVSP using VSD velocity
RVSP = SBP - 4 (VSD vel^2)
PDA characteristics
Communication between descending thoracic aorta and PA
Left heart enlargement
PDA echo
High left parasternal or SSN Color and CW doppler across PDA LV enlargement Holodiastolic flow reversal in abdominal aorta pHTN
PASP in PDA
PASP = SBP - 4 (PDAv^2)
Ebstein’s anomaly
Exaggerated apical displacement of TV septal leaflet
Atiralized RV, RV dysfunction
ASD / PFO
Accessory pathway
Rotational displacement of TV towards RVOT
Sail like and large anterior TV leaflet
Indexed apical displacement of TV septal leaflet in Ebstein’s
> 8 mm/m2
Tetralogy of Fallot
Displacement of part of ventricular septum -> RVOT obstruction Secondary RV hypertrophy VSD Associated aortic override
ToF associated with
Right aortic arch
Secundum ASD
Anomalous coronary arteries
Problems after ToF repair
PR due to patch in RVOT
PS
Residual VSD
AR
Coarctation aorta PW doppler
Later upstroke in systole
Persistent flow in diastole
Coarctation echo
Dilated ascending aorta
BAV
Abnormal aorta PW doppler