Tricuspid Valve Flashcards
(33 cards)
Apical 4 chamber leaflets TV
Anterior, septal
Parasternal RV inflow leaflets TV
Septal, anterior
Parasternal short leaflets TV
Posterior, septal/anterior
Causes of tricuspid stenosis
Rheumatic
Congenital
Carcinoid
Impedance to flow by another structure
Normal MG TV
<2 mm Hg
Severe MG TV stenosis
> 5-7 mm Hg
Severe PHT TV stenosis
> = 190 ms
TV area eq using PHT
190/PHT
Do not rely on PHT for TV if
RV myocardial disease or significant PR
Severe anatomy TS
Thickened, calcified leaflets
Severe TS hemodynamic criteria
MG > 5
PHT >= 190
Valve area <= 1
Severe TS consequences
RA enlargement
Dilated IVC
RV normal unless other path
TS indication for intervention
Severe + symptoms -> valve replacement
Don’t perform valvuloplasty b/c usually have TR
Severe TR Vena contracta
> = 7 mm
TR PISA equation for Flow
Flow = 2 pi * R2 * Vr * alpha/180
Severe TR ERO
40
Severe TR Rvol
45
Severe TR anatomy
Flail or distorted leaflets
Annular dilatation
Severe TR hemodynamics
Broad jet of color flow, area >= 10 cm2 Vena contracta >= 7mm Dense dagger shaped / triangular doppler signal Hepatic vein systolic reversal ERO >= 40, RVOL >= 45
Severe TR consequences
RA and RV enlargement
Dilated IVC
PASP not equal to RVSP
Pulmonary stenosis
Severe PR
Severe TR
Primary TR intervention indication
Severe + symptoms or progressive RVE / dysfunction
Secondary TR intervention indication
Severe + symptoms or progressive RVE / dysfunction + can fix cause
Severe TR + severe MR intervention
Fix TV with MV