What are the pitfalls and potential sources of error in assessing rheumatic MS severity by direct planimetry or CWD spectral display of mitral inflow (mean gradient, VTI, PHT)?
#ASEchoJC
🔺MG influenced by HR (ok only between 60-80 bpm), cardiac output, mixed valve disease
🔺Always report rhythm and heart rate
🔺PHT >150 ~ MVA <1.5 cm2 in RHD, assuming normal LV & LA compliance (unreliable in calcific MS)
🔺Trace mid-diastolic slope
🔺Avoid after PMBV
#ASEchoJC
🔺2D planimetry should transect leaflet tips perpendicular to LV axis
🔺Overestimation is common; look at the shape of LV in SAX (⭕️vs🥚)
🔺Caution with gain settings
🔺Consider biplane imaging & 3D #EchoFirst
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What are the #EchoFirst criteria to determine suitability for PBMV (aka PMBV or PMBC)? After PBMV, how do we define success, and do we identify severe MR?
#ASEchoJC
🔺PBMV if symptomatic severe MS, pliable valve, <2+ MR & no LAA thrombus
🔺Consider in asymptomatic severe MS & PASP>50 mmHg
🔺Wilkins score <=8
🔺Importance of careful #iEcho guidance, watch for severe acute MR
#ASEchoJC Wilkins score for assessing suitability for PBMV. Can consider >8 in very selected cases based on specific morphologic features.