Doppler Development Institute Forum - Recent Posts

VExUS vs classic CVP estimation (ASE) and potential impact

williambeaubien — Fri, 23 Jan 2026 22:20:00 +0000

A question aimed at cardiologists:

It seems like VExUS may be potentially better than IVC-based estimation of CVP which, in turn, could have a meaningful impact on the reliability estimation of sPAP.

What would be the downstream impact on the sensitivity/specificity/PPV/NPV and the need to perform confirmatory right heart cath?

RE: Positive Pressure Ventilation!

williambeaubien — Fri, 23 Jan 2026 21:27:06 +0000

I think most would say that the relationship would go Positive intrathoracic pressure -> worsening of venous congestion -> worse venous Doppler (but still reliable reflect venous congestion)

VExUS was developed in ventilated patients (ICU admission after cardiac surgery) but they basically had very similar parameters.

Our Danish colleagues did the best study in my opinion, they modified body position and peep. The later did not change the venous Doppler indices much but they did not push it further than 12 mmHg

Effects of changes in position, positive end-expiratory pressure and mean arterial pressure on renal, portal and hepatic Doppler ultrasound perfusion indices: a randomized crossover study in cardiac surgery patients - PubMed

Positive Pressure Ventilation!

August Longino — Sun, 04 Jan 2026 23:15:48 +0000

Is anyone else using VExUS in ventilated patients? I don't know if I can trust what I am seeing!