What question did this study set out to answer?

To assess the accuracy of continuous-wave Doppler ultrasound in noninvasively estimating right ventricular systolic pressure in patients with tricuspid regurgitation.

October 1, 1984Circulation

Noninvasive estimation of right ventricular systolic pressure by Doppler ultrasound in patients with tricuspid regurgitation.

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Why the study?

Does noninvasive estimation using Doppler ultrasound accurately predict right ventricular systolic pressure compared to catheterization in patients with tricuspid regurgitation?

Population

62 patients with clinical signs of elevated right-sided pressures, of which 54 had jets of tricuspid…

Comparison

Noninvasive estimation of right ventricular… vs Invasive measurement via catheterization.

Design

Cross-sectional

Authors

PYPaul G. YockInterventional Cardiology RPRichard L. PoppCardiac Imaging

Discussion

Member takes

Implication

Supports Doppler estimation of RVSP in TR; confirms strong correlation but leaves open prospective validation.

Key Points

To assess the accuracy of continuous-wave Doppler ultrasound in noninvasively estimating right ventricular systolic pressure in patients with tricuspid regurgitation.
Evaluated 62 patients exhibiting clinical signs of elevated right-sided cardiac pressures using continuous-wave Doppler ultrasound.
Calculated the transtricuspid systolic pressure gradient from the peak regurgitant jet velocity using the modified Bernoulli equation (delta P = 4V^2) and added clinically estimated mean right atrial pressure.
Compared Doppler-derived right ventricular systolic pressure estimates against invasive cardiac catheterization measurements.
Tricuspid regurgitation jets were successfully recorded by Doppler ultrasound in 54 of 62 patients (87%).
Doppler-estimated right ventricular systolic pressures correlated strongly with cardiac catheterization measurements (r = .93, SEE = 8 mm Hg).

Structured PICO

Does noninvasive estimation using Doppler ultrasound accurately predict right ventricular systolic pressure compared to catheterization in patients with tricuspid regurgitation?

Population

62 patients with clinical signs of elevated right-sided pressures, of which 54 (87%) had jets of tricuspid regurgitation clearly recorded by continuous-wave Doppler ultrasound.

Intervention

Noninvasive estimation of right ventricular systolic pressure using continuous-wave Doppler ultrasound (tricuspid gradient method calculating systolic pressure gradient via modified Bernoulli equation and adding clinically estimated mean right atrial pressure).

Comparator

Invasive measurement via catheterization.

Outcome

Correlation of noninvasive right ventricular systolic pressure predictions with catheterization values.surrogate

The tricuspid gradient method using continuous-wave Doppler ultrasound provides an accurate noninvasive estimation of right ventricular systolic pressure.

Cite This Study

Yock et al. (1984) studied this question.

synapsesocial.com/papers/69d88fe0e9c100a435ae2d86 https://doi.org/10.1161/01.cir.70.4.657

Topics

Tricuspid regurgitation Echocardiography

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Noninvasive estimation of right ventricular systolic pressure by Doppler ultrasound in patients with tricuspid regurgitation.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

Noninvasive estimation of right ventricular systolic pressure by Doppler ultrasound in patients with tricuspid regurgitation.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Topics

Also Consider