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Table 4 Correlation coefficients (Pearson) between echocardiography and clinical variables

From: Feasibility, reproducibility and diagnostic usefulness of right ventricular strain by 2-dimensional speckle-tracking echocardiography in ARDS patients: the ARD strain study

Echocardiography parametersHemodynamicRespiratory
Duration of vasopressor supportDuration of inotropic supportLVEFCardiac outputPaO2: FiO2 ratioPEEPDriving pressure
RV STE-derived parameters
 RV inferior LSS  %− 0.1190.363*− 0.155− 0.259− 0.403*0.082− 0.066
 RV lateral LSS%− 0.1600.384*− 0.301*− 0.379*− 0.304*− 0.042− 0.187
 RV septal LSS%0.1330.465*− 0.496*− 0.395*− 0.0980.044− 0.296
 RV global LSS%− 0.0900.471*− 0.335*− 0.390*− 0.353*0.033− 0.194
 RV global LSR s−1− 0.2450.320− 0.294*− 0.457*− 0.175− 0.144− 0.037
RV conventional parameters
 TAPSE mm− 0.143− 0.489*0.288*0.300*0.098− 0.1380.034
 RV FAC%0.009− 0.2510.0140.1990.0260.154− 0.145
 S’ cm s−1− 0.036− 0.2880.357*0.415*0.162− 0.0240.004
  1. Underline and * indicate significant correlation (p < 0.05); italic font: no significant correlation
  2. RV/LV right/left ventricle, STE speckle-tracking echocardiography, LSS longitudinal systolic strain, LSR longitudinal systolic strain rate, TAPSE tricuspid annular plane systolic excursion, FAC fractional area change, S′ peak systolic velocity of tricuspid annulus by pulsed wave Doppler tissue imaging, EF ejection fraction, PEEP positive end-expiratory pressure
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