Tricuspid annular displacement measured by 2-dimensional speckle tracking echocardiography for predicting right ventricular function in pulmonary hypertension

Abstract

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Usefulness of Right Ventricular Longitudinal Shortening Fraction to Detect Right Ventricular Dysfunction in Acute Cor Pulmonale Related to COVID-19

“…In our study, measurement of 2D-STE parameters showed a high degree of reliability. The intra and inter observer ICC for RV-LSF were excellent (both >0.93) in accordance with previous studies 27 .…”

“…Ten out of 29 patients (34%) had RV dysfunction (defined by RV-FAC<35%). RV-LSF (15 [11-20] % vs 25 [21-29] %; p=0.002) and TAD lat (13 [11-20] mm vs 21 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 mm, p=0.008) were significantly decreased in the RV dysfunction group. No difference was found between the 2 groups for 2D-strain parameters, TAPSE (22 [20-25] mm vs 24 [21-26] mm;p=0.28) and RV-S’(14 [13-19] cm.s −1 vs 18 [13-20] cm.s −1 ; p=0.77) ( Appendix 2 ) .…”

“…They found that RV-LSF was more correlated with CMR-RVEF than TAPSE or others speckle tracking parameters 26 . Li et al 27 showed that RV-LSF has a good correlation with CMR-RVEF in patients with pulmonary hypertension. In this study, the ROC curves analysis demonstrated that RV-LSF could be used to predict RV dysfunction (as assessed by CMR) and that RV-LSF had the higher AUC (0.975 IC95% [0.84-1.00]) compared to TAPSE, RV-FAC and RV-S'wave.…”

“…In this study, the ROC curves analysis demonstrated that RV-LSF could be used to predict RV dysfunction (as assessed by CMR) and that RV-LSF had the higher AUC (0.975 IC95% [0.84-1.00]) compared to TAPSE, RV-FAC and RV-S'wave. 27 . Maniwa et al investigated the value of RV-LSF for the assessment of RV systolic dysfunction (defined by RV ejection fraction <45% by 3-dimensionnal TTE) in 61 patients 10 .…”

“…Furthermore, unlike TAPSE and RV-S’ wave, the absolute value of RV-LSF is related to RV volume. Hence, RV-LSF is likely to be more correlated to indices using RV volumes as RV-FAC or CMR-EF 26 , 27 . Early diagnosis of RV dysfunction is part of the comprehensive management and treatment of CARDS under mechanical ventilation in order to avoid the development or worsening of ACP and thus hemodynamic deterioration.…”