| Sumario: | Acute respiratory distress syndrome (ARDS) is a significant cause of morbidity and mortality in critically ill patients, yet it is often underrecognized. Current imaging techniques, such as CT scan and X-ray, have several limitations, including inter-observer reliability, limited accessibility, radiation and the need for transportation. Ultrasound has become an essential bedside tool in the critical care setting and the emergency room, offering several advantages over traditional imaging techniques. It is nowadays widely used for diagnosis and early management of acute respiratory and circulatory failure. Lung ultrasound (LUS) provides non-invasively valuable information regarding lung aeration, ventilation distribution and respiratory complications in ARDS patients at the bedside. Moreover, a holistic ultrasound approach, combining LUS, echocardiography, and diaphragm ultrasound offers physiological information that could help the clinician to personalize ventilator settings and guide fluid resuscitation in these patients. Ultrasound techniques could also inform about possible causes of weaning failure in difficult-to-wean patients. However, it is uncertain whether clinical decisions based on ultrasound assessment can improve outcomes in ARDS patients and this clinical approach requires further investigation. In this article, we review the use of thoracic ultrasound, including lung and diaphragm examination, for the clinical assessment of patients with ARDS, and discuss its limitations and future perspectives.
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