Figure 1 Echocardiographic assessment of left ventricular systolic and diastolic function in patients with mechanical ventilation ready for extubation. (A) Left ventricular ejection fraction (LVEF) measured for left ventricular systolic function; (B) peak early (E) and peak atrial (A) velocity transmitral flow from pulsed-wave Doppler measured for left ventricular diastolic function; (C) deceleration time of E wave (DTE) measured for diastolic function; (D) early diastolic mitral annulus velocity (e’) based on tissue Doppler imaging measured for the calculation of E/e’ ratio and left atrial pressure (LAP).