Aortic Regurgitation

Aortic Regurgitation

Obtain apical 4 chamber view (see LV fxn slide) with straight septum
Fan/sweep the probe + obtain apical 5 chamber view
Turn on colour doppler and adjust box size to include entire LVOT.
Freeze image. Measure any jet with callipers + measure LVOT within 1cm of aortic root.
Assessment:
- Likely Mild: Jet width is < 25% of LVOT
- Likely Moderate: Jet width is 25-65% of LVOT
- Likely Severe: Jet width > 65% of LVOT

Note: The video shown has no features of aortic regurgitation. See how in diastole there are no jets returning to the LV!