The analysis of the systolic function (contractility) of the right ventricle (RV) is fundamental and central in many pathologies in intensive care unit. It can guide physicians in choosing therapeutics. The conventional ultrasound markers of RV function evaluation currently used are influenced by RV loading conditions, impairing their capacity to approximate a true contractility analysis. Myocardial strain imaging is a recent echographic technique that allows, among other things, to evaluate RV systolic function. It is a reproducible index with early variations which, if it proved to be independent pre-load, would help to better appreciate the RV contractility.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
16
ultrasound measurements of myocardial deformation of free wall right ventricle at 4 time points during a session of intermittent hemodialysis : before the intermittent hemodialysis connection, just after starting hemodialysis, after 1 hour of hemodialysis and 5 minutes before restitution
Hôpital de la Croix Rousse
Lyon, France
Hopital Saint Joseph Saint Luc
Lyon, France
Evaluation of the change in the Longitudinal strain of the free wall right ventricle
measurements will be performed using an ultrasound device usually used in our center for the hemodynamic monitoring of patients in intensive care by transthoracic cardiac ultrasound
Time frame: at baseline, 1 minute after starting hemodialysis, 1 hour after, and 5 minutes before restitution
Evaluation of the change in S' right ventricle wave
measurements will be performed using an ultrasound device usually used in our center for the hemodynamic monitoring of patients in intensive care by transthoracic cardiac ultrasound
Time frame: at baseline, 1 minute after starting hemodialysis, 1 hour after, and 5 minutes before restitution
Evaluation of the change in tricuspid annular plane systolic excursion (TAPSE)
measurements will be performed using an ultrasound device usually used in our center for the hemodynamic monitoring of patients in intensive care by transthoracic cardiac ultrasound
Time frame: at baseline, 1 minute after starting hemodialysis, 1 hour after, and 5 minutes before restitution
Evaluation of the change in visual left ventricular ejection fraction (LVEF)
measurements will be performed using an ultrasound device usually used in our center for the hemodynamic monitoring of patients in intensive care by transthoracic cardiac ultrasound
Time frame: at baseline, 1 minute after starting hemodialysis, 1 hour after, and 5 minutes before restitution
Evaluation of the change in mitral E wave
measurements will be performed using an ultrasound device usually used in our center for the hemodynamic monitoring of patients in intensive care by transthoracic cardiac ultrasound
Time frame: at baseline, 1 minute after starting hemodialysis, 1 hour after, and 5 minutes before restitution
Evaluation of the change in mitral A wave
measurements will be performed using an ultrasound device usually used in our center for the hemodynamic monitoring of patients in intensive care by transthoracic cardiac ultrasound
Time frame: at baseline, 1 minute after starting hemodialysis, 1 hour after, and 5 minutes before restitution
Evaluation of the change in wave E ' at the lateral mitral ring
measurements will be performed using an ultrasound device usually used in our center for the hemodynamic monitoring of patients in intensive care by transthoracic cardiac ultrasound
Time frame: at baseline, 1 minute after starting hemodialysis, 1 hour after, and 5 minutes before restitution
Evaluation of the change in systolic fraction of pulmonary venous flow
measurements will be performed using an ultrasound device usually used in our center for the hemodynamic monitoring of patients in intensive care by transthoracic cardiac ultrasound
Time frame: at baseline, 1 minute after starting hemodialysis, 1 hour after, and 5 minutes before restitution
inter individual variability of Longitudinal strain of the free wall right ventricle
Each measurement will be performed by two blind operators
Time frame: at baseline, 1 minute after starting hemodialysis, 1 hour after, and 5 minutes before restitution
intra individual variability of Longitudinal strain of the free wall right ventricle
Each measurement will be performed by two blind operators
Time frame: at baseline, 1 minute after starting hemodialysis, 1 hour after, and 5 minutes before restitution
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