Abstract
AbstractThe aims of the present study were to develop and check the utility and feasibility of a novel right ventricular (RV) functional index (RV angular velocity; RVω, s−1) derived from the angular velocity in harmonic oscillator kinematics obtained from the RV pressure waveform. We hypothesized that RVω reflects the myocardial performance index (MPI), which represents global RV function. A total of 132 consecutive patients, ranging in age from 3 months to 34 years with various cardiac diseases were included in this prospective study. RVω was defined as the difference between the peak derivative of pressure (dP/dt_max − dP/dt_min) divided by the difference between the maximum and minimum pressure (Pmax – Pmin). RVω showed significant negative correlations with the pulsed-wave Doppler-derived myocardial performance index (PWD-MPI) and the tissue Doppler imaging-derived MPI (TDI-MPI) (r = −0.52 and −0.51, respectively; both p < 0.0001). RVω also showed significant positive correlations with RV fractional area change (RVFAC) and RV ejection fraction (RVEF) (r = 0.41 and 0.39, respectively; both p < 0.0001), as well as a significant negative correlation with tricuspid E/e′ (r = −0.19, p = 0.0283). The clinical feasibility and utility of RVω for assessing global RV performance, incorporating both systolic and diastolic function, were demonstrated.
Publisher
Springer Science and Business Media LLC
Reference31 articles.
1. Tei, C. et al. New index of combined systolic and diastolic myocardial performance: a simple and reproducible measure of cardiac function – a study in normals and dilated cardiomyopathy. J. Cardiol. 26, 357–366 (1995).
2. Tei, C. et al. Doppler index combining systolic and diastolic myocardial performance: clinical value in cardiac amyloidosis. J. Am. Coll. Cardiol. 28, 658–664, https://doi.org/10.1016/s0735-1097(96)00202-1 (1996).
3. Tei, C., Nishimura, R. A., Seward, J. B. & Tajik, A. J. Noninvasive Doppler-derived myocardial performance index: correlation with simultaneous measurements of cardiac catheterization measurements. J. Am. Soc. Echocardiogr. 10, 169–178, https://doi.org/10.1016/s0894-7317(97)70090-7 (1997).
4. Cui, W. & Roberson, D. A. Left ventricular Tei index in children: comparison of tissue Doppler imaging, pulsed wave Doppler, and M-mode echocardiography normal values. J. Am. Soc. Echocardiogr. 19, 1438–1445, https://doi.org/10.1016/j.echo.2006.06.006 (2006).
5. Yeo, T. C. et al. Value of a Doppler-derived index combining systolic and diastolic time intervals in predicting outcome in primary pulmonary hypertension. Am. J. Cardiol. 81, 1157–1161, https://doi.org/10.1016/s0002-9149(98)00140-4 (1998).
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