Septic Shock Clinical Trial
Official title:
Does the Time Between the End of Vascular Filling and Evaluation of Its Effectiveness Modify Fluid Challenge Results in Septic Shock?
The main objective of this study is to evaluate in a population of patients with septic shock receiving 500 ml crystalloid over 10 minutes, the proportion of patients classified as "responders" to the fluid challenge (increase of at least 15% of ITV in aortic) at the end of vascular filling (T10) and becoming "non-responders" 20 minutes after the end of the fluid challenge (T30) and whether this proportion is greater than 10 points.
The secondary objectives of this study are :
A. To assess changes in different ultrasound parameters: E wave , E / A ratio , E / E ' in
the event of vascular filling and construct a dose response curve for vascular filling.
B. To determing a threshold value for the mitral E wave velcoity that can predict a positive
response to volume expansion at T10 defined by a 15% increase in the sub aortic velocity
time integral (ITV) after 500 ml of crystalloids in 10 minutes.
C. To determine a threshold value for theITV at T0 that can predict a positive response to
volume expansion at T10 defined by a 15% increase in the ITV after 500 ml of crystalloids in
10 minutes.
D. To evaluate the proportion of responders at T10 becoming non-responders at T20.
E. To evaluate the proportion of nonresponders at T10 and responders at T30 .
F. To estimate the proportion of patients changing status regardless of the direction of
change between T10 and T30 .
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Observational Model: Cohort, Time Perspective: Prospective
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