Mitral Regurgitation Flashcards
Class I for surgery
Severe, symptomatic EF >30% EF <60 LVESED >= 40 Repair > replacement if posterior or feasible Other cardiac surgery
Type 1 movement MR
Normal
Type 2 movement MR
Excessive
Mostly degenerative
Type 3 movement MR
Restricted movement
A = diastole
B = systole
Severe jet MR
Large central jet > 50% of LA
Eccentric wall-impinging jet
Severe flow convergence MR
Large, throughout systole
Severe PV MR
Systolic flow reversal
Severe ERO MR
> = 0.40
Severe RVol
> = 60
Severe RF MR
> = 50%
MV RVol eq
Rvol = MV SV - AV SV
ERO using RVol MR
Rvol / R VTI
Flow by PISA
2pi x aliasing velocity x r2
ERO by PISA MR
ERO = flow / velocity
Measure for holystolic MR
ERO > Rvol
Measure for end-systolic MR
Rvol > ERO
LAVI for mortality
> 60
SPAP for prognosis MR
> = 50 mm Hg
PISA angle correction for jet from commissures close to LV wall
EROA * peak MR velocity = 2pir2 * aliasing velocity * angle/180
RVol from ERO
RVol = ERO * R VTI