Valve Disease Flashcards
MV Scallops at 0 degrees
A2 and P2
MV scallops at 45 to 60 degrees
P1, A2, and P3
MV scallops at 120 degrees
A1 and P1
Most common fusions of the AV in bicuspid valve
R-L > R-N > L-N
What is the DI?
LVOTVTI/AVVTI
What DI indicates severe AS?
DI = 0.25
What are the causes of low gradient AS
- Measurement error
- LVOT error
- Low EF < 50%
- Paradoxical > 50%
Dobutamine protocol for low flow low gradient AS
5-20 mcg each 5 minutes
- SV should increase by 20%
- AVA = 1 or mean gradient >/= 40 for AS
What is the general staging of AS
A: At risk
B: Progressive
C: Severe but no sx
D: Severe and sx
What is the detailed grading of AS
C1: Compensated LV (>50%)
C2: Decompensated LV (<50%)
D1: High gradient
D2: LFLG
D3: Paradoxical LG
What stage do we intervene on AS?
C2 or higher
What conditions are associated with supravalvular AS
Williams syndrome
Bicuspid AV
Screening intervals for AI
Mild: q 3 yrs
Moderate or higher: q 1 yr
What indicates severe AI (9 criteria)
- Wide defect
- Large jet width
- Steep PHT < 200
- Prominent holodiastolic reversal
- VC > 0.6
- Jet width > 65% LVOT
- RV > 60
- RF > 50%
- EROA > 0.3
When to fix AI?
- Severe and sx
- Severe, no sx, EF <50%
- Severe, no sx, EF >50% AND LVESD >50