We conducted further statistical analysis as you suggested, adjusting the regression model on two variables which were close to significance in the univariate analysis with p<0.2 : septic shock and norepinephrine infusion.
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Left ventricular longitudinal strain variations assessed by speckle-tracking echocardiography after a passive leg raising maneuver in patients with acute circulatory failure to predict fluid responsiveness: A prospective, observational study.
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