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).