Correlation between echocardiographic estimation of right atrial pressure and invasive measurement of central venous pressure in postoperative pediatric patients with congenital heart disease: a prospective observational study

The Egyptian Heart Journal

Table 7 Correlation between tricuspid valve Doppler and tissue Doppler parameters and invasively measured central venous pressure

Linear regression
Continuous variables	R (Pearson correlation coefficient)	R square	P value
Tricuspid valve E wave velocity	0.047	0.002	0.766
Tricuspid valve E wave velocity time integral	0.058	0.003	0.720
Tricuspid valve E wave acceleration time	0.007	0.000	0.965
Tricuspid valve E wave acceleration rate	0.080	0.006	0.621
Tricuspid valve E wave deceleration time	− 0.023	0.001	0.884
Tricuspid valve E wave deceleration rate	0.029	0.001	0.856
Tricuspid valve E wave duration	− 0.041	0.002	0.797
Tricuspid valve A wave velocity	0.226	0.051	0.150
Tricuspid valve A wave velocity time integral	0.093	0.009	0.562
Tricuspid valve A wave acceleration time	− 0.097	0.009	0.545
Tricuspid valve A wave acceleration rate (TV_AAR)	0.315	0.099	0.048
Tricuspid valve A wave acceleration rate (TV_AAR)	0.315	0.099	Regression equation = 9.9 + 0.001 × TV_AAR
Tricuspid valve A wave deceleration time	− 0.156	0.024	0.324
Tricuspid valve A wave deceleration rate	0.264	0.07	0.09
Tricuspid valve A wave duration	− 0.221	0.159	0.159
Tricuspid valve e′ wave velocity	0.107	0.011	0.507
Tricuspid valve a′ wave velocity	− 0.055	0.005	0.734
Tricuspid valve isovolumic relaxation time	0.105	0.011	0.503
E/e′	0.018	0.000	0.913