Key result
IVC collapsibility-guided right atrial pressure assessment improves noninvasive Doppler estimation of RVSP.
Why the study?
The accuracy of Doppler estimation of right ventricular systolic pressure can be improved by incorporating ultrasound-derived right atrial pressure, but this approach requires validation.
Does incorporating ultrasound-derived right atrial pressure improve the accuracy of Doppler estimation of right ventricular systolic pressure in patients with elevated pulmonary pressure?
Cross-Sectional (n=49)
Does incorporating ultrasound-derived right atrial pressure improve the accuracy of Doppler estimation of right ventricular systolic pressure in patients with elevated pulmonary pressure?
Using ultrasound to estimate right atrial pressure via the inferior vena cava collapsibility index improves the accuracy of Doppler-derived right ventricular systolic pressure.
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May improve Doppler RVSP accuracy via IVC-guided RAP selection; leaves open prospective validation before routine use.
Guazzi et al. (2017) conducted a cross-sectional in Elevated pulmonary pressure (n=49). Ultrasound evaluation of right atrial pressure via inferior vena cava collapsibility index vs. Catheter-derived right ventricular systolic pressure was evaluated on Accuracy of noninvasive right ventricular systolic pressure estimation compared to catheter-derived values. Ultrasound evaluation of the inferior vena cava collapsibility index assists in approximating right atrial pressure and choosing the appropriate formula, improving Doppler estimation of RVSP.
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