Volume 38, Issue 1 pp. 27-37
Review Article

Lung Ultrasonography for Assessing Lung Aeration in Acute Respiratory Distress Syndrome: A Narrative Review

Gabriela Bello MD

Gabriela Bello MD

Intensive Care Unit, Hospital Central de las Fuerzas Armadas, Montevideo, Uruguay

Hospital Policial, Montevideo, Uruguay

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Pablo Blanco MD

Corresponding Author

Pablo Blanco MD

Ecodiagnóstico-Centro de Diagnóstico por Imágenes, Necochea, Argentina

Address correspondence to Pablo Blanco, MD, Ecodiagnóstico-Centro de Diagnóstico por Imágenes, 3272 50th St, 7630 Necochea, Argentina (P.B.). E-mail: [email protected]Search for more papers by this author
First published: 06 May 2018
Citations: 25

Abstract

Acute 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.

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