• Gabriela Bello and Pablo Blanco.
• Intensive Care Unit, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay.
• J Ultrasound Med. 2019 Jan 1; 38 (1): 27-37.

AbstractAcute respiratory distress syndrome (ARDS) constitutes a high burden for intensive care units. Although several methods are proposed to monitor aeration in ARDS, availability, costs, simplicity, and hazards (eg, ionizing radiation) limit the use of many of them at patients' bedsides. Given the widespread use of lung ultrasonography (US) in intensive care units, research is growing regarding its use to monitor aeration in patients with ARDS. We reviewed the actual role of lung US in ARDS and its potential impact in practice. Lung US can be readily used for assessing aeration, although, as a main limitation, a normal lung cannot be distinguished from hyperinflation. Additionally, an improvement in aeration by lung US does not always correlate with an increase in oxygenation. Lung US can be considered the main imaging method for monitoring aeration in ARDS, but in view of its limitations, it should not be used in isolation. Further studies are needed to validate lung US in large ARDS populations.© 2018 by the American Institute of Ultrasound in Medicine.

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