Valve Disease Flashcards

1
Q

MV Scallops at 0 degrees

A

A2 and P2

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2
Q

MV scallops at 45 to 60 degrees

A

P1, A2, and P3

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3
Q

MV scallops at 120 degrees

A

A1 and P1

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4
Q

Most common fusions of the AV in bicuspid valve

A

R-L > R-N > L-N

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5
Q

What is the DI?

A

LVOTVTI/AVVTI

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6
Q

What DI indicates severe AS?

A

DI = 0.25

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7
Q

What are the causes of low gradient AS

A
  1. Measurement error
  2. LVOT error
  3. Low EF < 50%
  4. Paradoxical > 50%
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8
Q

Dobutamine protocol for low flow low gradient AS

A

5-20 mcg each 5 minutes

  • SV should increase by 20%
  • AVA = 1 or mean gradient >/= 40 for AS
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9
Q

What is the general staging of AS

A

A: At risk

B: Progressive

C: Severe but no sx

D: Severe and sx

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10
Q

What is the detailed grading of AS

A

C1: Compensated LV (>50%)

C2: Decompensated LV (<50%)

D1: High gradient

D2: LFLG

D3: Paradoxical LG

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11
Q

What stage do we intervene on AS?

A

C2 or higher

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12
Q

What conditions are associated with supravalvular AS

A

Williams syndrome

Bicuspid AV

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13
Q

Screening intervals for AI

A

Mild: q 3 yrs

Moderate or higher: q 1 yr

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14
Q

What indicates severe AI (9 criteria)

A
  1. Wide defect
  2. Large jet width
  3. Steep PHT < 200
  4. Prominent holodiastolic reversal
  5. VC > 0.6
  6. Jet width > 65% LVOT
  7. RV > 60
  8. RF > 50%
  9. EROA > 0.3
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15
Q

When to fix AI?

A
  1. Severe and sx
  2. Severe, no sx, EF <50%
  3. Severe, no sx, EF >50% AND LVESD >50
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16
Q

New requirements for severe MS

A
  1. PASP > 30
  2. MVA = 1.5 (<1 is very severe)
  3. Diastolic PHT >/= 150 (220 for very severe)
17
Q

MVA from PHT

A

MVA = 220/PHT

18
Q

When is the PHT eqution unreliable?

A
  1. Severe AI
  2. Decreased LV compliance
  3. Degenerative MS
  4. Post BMV
19
Q

How does MVA relate to SV and VTI?

A

MVA = SV/MVVTI

20
Q

Wilkins score

A
  1. Mobility
  2. Thickening
  3. Calcification
  4. Subvalvular stenosis
21
Q

What is severe MS with exercise?

A
  1. MG > 15 with exercise
  2. MG > 18 with dobutamine
  3. RVSP > 60 with exercise
22
Q

What qualifies as severe MR?

A
  1. EROA > 0.4
  2. RF >50%
  3. RV > 60
  4. VC > 0.7
  5. ā€œE RF RV Vā€
23
Q

LAVI and mortality in MR

A

LAVI >60 with increased mortality

24
Q

Which TV leaflets are seen in each TTE window?

A
  1. A4C: A-S
  2. RV inflow: S-A
  3. PSAX: P-S/A
25
Q

Parameters for severe TS

A
  1. MG > 5.7
  2. PHT >/= 190
  3. TVA = 190/PHT
26
Q

Parameters for severe TR

A
  1. VC > 7
  2. ERO > 40
  3. RV > 45
27
Q

Qualities of carcinoid

A

Need liver mets

Stenosis and regurg

If L sided involvement: shunt or pulmonary mets

28
Q

What is pathological obstruction in prosthetic aortic valve?

A

Accel time > 100 or DI < 0.25

29
Q

What is pathological obstruction in prosthetic MV?

A

MV PHT > 130

30
Q

What is pathological regurg in prosthetic MV

A

PHT < 130 and TVI > 2.2

31
Q

What defines periprosthetic regurg?

A

PHT <200 and circumferential percent > 30%

32
Q

Requirements for successful MitraClip

A

Flail width <15

Flail gap < 10

P2/A2 involvement

33
Q

What is high risk for IE?

A

Large vegetations, prosthetic valve, perivalvular extension, and lots of regurg

34
Q

What is an acquired Gerbode defect?

A

IE causing RA-LV fistula