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Variations of arterial oxygen saturation (SaO2) and mixed venous oxygen saturation (SaO2) during weaning trials. Individual values of arterial oxygen saturation (SaO2) (left) and mixed venous oxygen saturation (SvO2) (right) obtained on mechanical ventilation (MV) and at the 10th minute (Start) and last minute (End) of the spontaneous breathing trial on Control day (upper panel) and Study day (lower panel).
