Correlation between right atrial pressure measured via right heart catheterization and venous excess ultrasound, inferior vena cava diameter, and ultrasound-measured jugular venous pressure: a prospective observational study

This study establishes a strong correlation between non-invasive ultrasound measurements (VExUS, IVC diameter with CI, and uJVP) and invasively measured RAP. These findings underscore the clinical potential of these non-invasive techniques in venous congestion assessment and patient risk stratification.