Central venous pressure from common iliac vein reflects right atrial pressure
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Updated: Oct 27, 2026

Image Acquisition Method for the Sonographic Assessment of the Inferior Vena Cava
Published on: January 13, 2023
1Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Purpose:
To determine whether central venous pressure at the common iliac vein reflects right atrial pressure in adult patients.
Methods:
In this prospective, non-blinded study 26 mechanically-ventilated adult patients were studied. Simultaneous pressure readings were obtained from the right atrium (TCVP) and the common iliac vein (ACVP).
Results:
There was a correlation between TCVP and ACVP (r = 0.987; P < 0.0001). The mean difference between TCVP and ACVP was 0.93 mm Hg. And the limits of agreement were: -1.93 to 1.77 mm Hg.
Conclusion:
Venous pressure recorded from the common iliac vein reflects that in the right atrium. Adopting a femoral route for central venous pressure measurement may avoid some of the complications associated with the subclavian route.
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