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Tony Forshaw

@echoguru

M cardiac ultrasound, B Ex Sci, AMS (cardiac), FASE Cardiac sonographer | Educator | Director at Echo Guru Pty Ltd
echoguru.com Joined November 2016
500 Following 875 Followers 781 Posts

Latest posts 5

Tony Forshaw @echoguru
The numbers need to add up and make sense!!!
Nicolas Merke Verified account @NMerke Aug 4
Same #echofirst common sense principle in AR
🚨If PISA says 60 ml AR, but LVOT SV is only 70 ml:
STOP. Something is wrong.
In isolated AR, the key point is that the LVOT forward SV is also the total LV stroke volume, and with important AR both should generally be elevated.
and therefore:
AR RVol = LVOT SV − RVOT SV
So if you calculate a large AR regurgitant volume, the numbers must make physiological sense:
🔹 LVOT SV should be increased
🔹 LV total SV should therefore be increased
🔹 RVOT SV represents forward pulmonary flow
🔹 The LVOT–RVOT difference should agree with the AR RVol
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