Figure 1From: Relation of tricuspid annular displacement and tissue Doppler imaging velocities with duration of weaning in mechanically ventilated patients with acute pulmonary edema Box plot illustrating Sm and Em/Am admission values versus the presence of prolonged weaning. Box plot showing the significantly different distribution of Sm and Em/Am values at admission between patients with and without prolonged weaning (≥ or < 7 days after the first weaning trial, respectively).Back to article page