123sono Flashcards
In what views are you seeing the A2, P2 leaflets?
What are the abnormalities you see in Ebstein’s anomaly?
1) Long anterior tricuspid valve leaflet
2) Short septal tricuspid valve leaflet
3) Leaflet closure is well into the ventricle causing significant atrialiasation of the RV
4) Tethering of the anterior tricuspid valve leaflet to the myocardium
5) Frequent association with ASDs, accessory pathways (less so VSDs, CoA, PDA)
In volume overload (severe TR) is the septum flat in diastole or systole
Diastole
In pressure overload (pulmonary hypertension) is the septum flat in systole or diastole
systole
If there is septal flattening in systole and diastole then that means there is
pressure and volume overload
How can you calculate tricuspid valve area in suspected TS
TVA = 190/PHT
What is severe TS
TVA <1cm2, mean gradient >5 mmHg
The definition of patient prosthesis mismatch is…
indexed effective orifice area < 0.85 cm2/m2
If the gradient across a prosthetic mitral valve is elevated but the PHT is normal, what does that mean?
Significant regurgitation
If the PHT was elevated, then it would mean obstruction
Which patients are at high risk for endocarditis and should receive antibiotic prophylaxis?
Those with:
previous endocarditis
Prosthetic valves
Untreated cyanotic congenital heart disease or those treated with postoperative palliative shunts or other prosthesis
VAD destination therapy
Antibiotic prophylaxis should also be given immediately following
transcatheter tAVR or tMVR
Would a fibroelastoma on the aortic valve be associated with AR?
Generally, no. Fibroelastomas, unlike vegetations, do not disrupt the valve itself.
When evaluating tricuspid valve endocarditis, what else should you always look for?
PFO or ASD as this can lead to paradoxical embolism
What are the indications for surgery in TVE?
Persistent bacteraemia > 7 days despite treatment
Persistent TV vegetations > 20mm after recurrent PEs
Right heart failure, severe TR (non responsive to diuretics)
Respiratory insufficiency requiring ventilatory support with persistent vegetations causing recurrent PEs
Left heart structures also involved