The examination and treatment of mechanically ventilated patients, bedside ultrasonography was quite helpful. Ultrasound’s usefulness in critical care units was not limited to diagnosis; it was also utilized as a guide for mechanical ventilator control, from the early stages until weaning. Chest ultrasonography encompassed exams of the lungs, heart, and diaphragm to get a thorough functional evaluation of critical care patients while on mechanical ventilation. Lung ultrasound was an emerging and increasingly used imaging tool for investigating lung aeration during mechanical ventilation in both a semiquantitative and quantitative manner, assisting physicians in determining the best ventilator settings to re-expand collapsed lung regions while avoiding pulmonary stress and strain. Echocardiography was useful in assessing right and left ventricular function and in guiding breathing methods such as low plateau pressures, optimal positive end-expiratory pressure, pronation, and permissive hypoxia and hypercapnia. Monitoring the effects of mechanical ventilation on cardiac-lung interaction induced a lung-heart protective ventilation approach to avoid right ventricular failure, which was linked to poor outcomes. 

Furthermore, because weaning failure was caused by cardiac causes in a percentage of patients, chest ultrasonography during weaning from mechanical ventilation provided a lot of information to the doctor. Early echocardiography testing and weaning monitoring led to therapeutic measures to enhance left ventricular diastolic function and determine the appropriate time. In addition, ultrasonography examination of diaphragm excursion and contractility indicated weaning failure.