Clinical Studies
Echocardiography for Hemodynamic Assessment of Patients With Advanced Heart Failure and Potential Heart Transplant Recipients 1

https://doi.org/10.1016/S0735-1097(97)00384-7Get rights and content
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Abstract

Objectives. This study sought to assess the accuracy of Doppler echocardiographic techniques for the determination of right heart catheterization hemodynamic variables in patients with advanced heart failure and in potential heart transplant recipients.

Background. Doppler echocardiographic techniques permit the noninvasive acquisition of hemodynamic variables traditionally used for the assessment of patients with advanced heart failure and potential heart transplant candidates. However, the accuracy of these techniques has not been sufficiently well documented for clinical application in individual patients.

Methods. Echocardiographic data required for estimation of mean right atrial, pulmonary artery and mean left atrial pressures and cardiac output were obtained. Right heart catheterization was performed immediately after Doppler echocardiographic data were acquired, before any intervention that might have altered the subject’s hemodynamic status.

Results. A complete Doppler echocardiographic hemodynamic data set was acquired in 21 (84%) of 25 subjects. For all variables, invasive and noninvasive hemodynamic values were highly correlated (p < 0.001), with minimal bias and narrow 95% confidence limits. An algorithm constructed from the noninvasive hemodynamic variable values identified all patients with adverse pulmonary vascular hemodynamic variables (i.e., transpulmonary gradient ≥12 mm Hg, pulmonary vascular resistance ≥3 Wood units or pulmonary vascular resistance index ≥6 Wood units × m2). This algorithm identified 12 (71%) of 19 patients for whom right heart catheterization was unnecessary.

Conclusions. Doppler echocardiographic estimates of hemodynamic variables in patients with advanced heart failure are accurate and reproducible. This noninvasive methodology may assist with monitoring and optimization of medical therapy in patients with advanced heart failure and may obviate the need for routine right heart catheterization in potential heart transplant candidates.

Abbreviations

CO
cardiac output
LAP
left atrial pressure
PADP
pulmonary artery diastolic pressure
PAMP
pulmonary artery mean pressure
PASP
pulmonary artery systolic pressure
PVR
pulmonary vascular resistance
PVRI
pulmonary vascular resistance index
RAP
right atrial pressure
TPG
transpulmonary gradient
VTI
velocity time integral

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1

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2

Present address: University of Wisconsin Medical School, H6/315 Clinical Science Center, 600 Highland Avenue, Madison, Wisconsin 53792-3248.