Left and right ventricular echocardiographic patterns in cardiogenic pulmonary edema: An exploratory retrospective study

Table 4 Spearman correlation analysis between echocardiographic parameters and intensive care unit length of stay

Parameter	Spearman ρ	P value
TAPSE	-0.148	0.444
S RV	-0.078	0.686
S LV	-0.189	0.326
S LV/S RV	-0.001	0.995
RV-RA gradient	-0.055	0.777
E-wave	0.175	0.363
E/E’	0.198	0.302
LVOT VTI	0.031	0.874
LVEF	-0.175	0.365

Spearman’s rank correlation coefficient (ρ) was used to assess the association between echocardiographic parameters and duration of intensive care unit stay. A two-sided P value < 0.05 was considered statistically significant. E/E’ is ratio of early mitral inflow velocity to early diastolic mitral annular velocity. E-wave: Peak early mitral inflow velocity; RV-RA gradient: Right ventricle-right atrium systolic pressure gradient; LVEF: Left ventricular ejection fraction (biplane Simpson method); LVOT VTI: Left ventricular outflow tract velocity-time integral; S LV: Systolic velocity of the lateral mitral annulus; S RV: Systolic velocity of the lateral tricuspid annulus; TAPSE: Tricuspid annular plane systolic excursion.