Right Ventricular Wall‐Motion Changes after Infant Open Heart Surgery—A Tissue Doppler Study

Abstract

In infants and neonates, perioperative measurements of systolic and diastolic tissue Doppler parameters are feasible and revealed significant RV systolic and diastolic dysfunction post-CPB with preserved LV function. As such, TDI provides a sensitive tool to monitor the infant heart after CPB and may potentially be useful to assess different myocardial protection strategies.

Comparison of valvar and right ventricular function following transcatheter and surgical pulmonary valve replacement

“…However, there was a differential effect on quantitative parameters of RV systolic function—while function was preserved in group TC, there was a transient decline in group S that only partially recovered in follow‐up. This effect is likely related to cardiopulmonary bypass (CPB) as a decline in longitudinal right ventricular function has been described previously . While our findings should be validated in a larger cohort and validated by MRI, they are further evidence supporting TC PVR when feasible.…”

“…This effect is likely related to cardiopulmonary bypass (CPB) as a decline in longitudinal right ventricular function has been described previously. 28 While our findings should be validated in a larger cohort and validated by MRI, they are further evidence supporting TC PVR when feasible.…”

In-vivo deformation measurements of the human heart by 3D Digital Image Correlation

“…Recently, various imaging methods based on ultrasonic measurements, such as transesophageal echocardiography and tissue Doppler techniques (Shimony et al, 2014;Pauliks et al, 2014) have been used for analysing the movement and deformation of the heart. In addition, other experimental and numerical methods based on magnetic resonance tissue tagging and finite element simulations are being used for estimating the deformation of the heart (Ibrahim, 2011;Dorri et al, 2006).…”

Normal Pediatric Data for Isovolumic Acceleration at the Lateral Tricuspid Valve Annulus—A Heart Rate – Dependent Measure of Right Ventricular Contractility

“…Normal pediatric values are available for two echocardiographic parameters of RV systolic function: tricuspid annular plane systolic excursion (TAPSE) and tissue Doppler imaging (TDI)‐derived systolic velocity of the lateral tricuspid valve annulus (RV S′) . Tissue Doppler–derived myocardial acceleration during isovolumic contraction (IVA) has emerged as a measure of contractility that is resistant to acute changes in loading conditions . IVA at the lateral tricuspid valve annulus (RV IVA) predicts depressed RV systolic function determined by cardiac MRI .…”

“…[2][3][4][5][6] Tissue Doppler-derived myocardial acceleration during isovolumic contraction (IVA) has emerged as a measure of contractility that is resistant to acute changes in loading conditions. [7][8][9][10][11][12] IVA at the lateral tricuspid valve annulus (RV IVA) predicts depressed RV systolic function determined by cardiac MRI. 13,14 There is sparse data on RV IVA in healthy children.…”