Original ArticleAssessment of Right Atrial Pressure With 2-Dimensional and Doppler Echocardiography: A Simultaneous Catheterization and Echocardiographic Study
Section snippets
PATIENTS AND METHODS
The study population consisted of 71 patients who underwent simultaneous catheterization and 2-dimensional and Doppler echocardiography. All patients were referred to the Catheterization Laboratory at Mayo Clinic Rochester for clinically indicated catheterization of the right side of the heart; they were hemodynamically stable and in normal sinus rhythm. The initial 28 patients (derivation set) were used to derive a regression equation and clinical algorithm to predict right atrial pressure.
RESULTS
The derivation patients were 54±14 years old, with an ejection fraction of 48%±22%. The referring diagnoses included constrictive pericarditis in 4 patients, restrictive cardiomyopathy in 2, mitral stenosis in 3, aortic stenosis in 3, hypertrophic cardiomyopathy in 2, and clinical heart failure in the other 14. The test set was not significantly different. They were 58±12 years old, with an ejection fraction of 45%±17%. The referring diagnoses included hypertrophic cardiomyopathy in 2 patients,
DISCUSSION
Several methods have been proposed for estimating right atrial pressure, which is needed to determine right ventricular systolic pressure echocardiographically. Clinical estimation of the venous pressure has been used, but prospective studies have shown that it is inaccurate.5, 6 A constant value of 14 mm Hg has been derived from a regression analysis comparing the tricuspid regurgitant velocity with direct catheter measurement of right ventricular systolic pressure in a large number of
ACKNOWLEDGMENT
We wish to thank Timothy F. Christian, MD, for his assistance with the statistical methods and critical review of the manuscript.
REFERENCES (14)
- et al.
Sonospirometry: a new method for noninvasive estimation of mean right atrial pressure based on two-dimensional echographic measurements of the inferior vena cava during measured inspiration
J Am Coll Cardiol
(1988) - et al.
Noninvasive estimation of right alrïal pressure from the inspiratory collapse of the inferior vena cava
Am J Cardiol
(1990) - et al.
Estimation of left ventricular filling pressures using two-dimensional and Doppler echocardiography in adult patients with cardiac disease: additional value of analyzing left atrial size, left atrial ejection fraction and the difference in duration of pulmonary venous and mitral flow velocity at atria] contraction
J Am Coll Cardiol
(1993) - et al.
Pulmonary venous flow velocities recorded by transthoracic Doppler ultrasound: relation to left ventricular diastolic pressures
J Am Coll Cardiol
(1993) - et al.
Doppler flow velocity patterns of the superior vena cava, inferior vena cava, hepatic vein, coronary sinus, and alrial septal defect: a guide for the echocardiographer
J Am Soc Echocardiogr
(1991) - et al.
Superior vena cava and hepatic vein Doppler echocardiography in healthy adults
j Am Coll Cardiol
(1987) - et al.
Doppler ultrasound of the hepatic veins: normal appearances
Clin Radiol
(1992)
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Dr Hurrell is now with the Minneapolis Heart Institute Foundation, Minneapolis, Minn.