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In 2024, a global redefinition of ARDS was introduced to overcome these challenges, constituting the most substantial update since the Berlin definition in 2012. This review summarizes the principal revisions to the criteria, including the formal adoption of lung ultrasound, SpO\u2082\/FiO\u2082 ratios, and the explicit consideration of non-intubated ARDS and contexts with limited resources. These modifications are intended to promote more inclusive diagnostics, earlier detection, and improved research relevance. We provide a critical analysis of the advantages and drawbacks of the new definition, focusing on the heterogeneity of oxygenation measures, complications in FiO\u2082 assessment, and challenges in imaging evaluation. Additionally, the review underlines ongoing areas for refinement, comprising the establishment of uniform ventilator parameters, greater integration of carbon dioxide metrics, and the application of phenotypic stratification to support the advancement of precision medicine. This conceptual update signals a significant transformation in ARDS diagnosis and is expected to foster broader and more accessible critical care methodologies as well as expanded research participation.<\/jats:p>","DOI":"10.4046\/trd.2025.0069","type":"journal-article","created":{"date-parts":[[2025,10,23]],"date-time":"2025-10-23T07:58:37Z","timestamp":1761206317000},"page":"10-17","update-policy":"https:\/\/doi.org\/10.4046\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Redefining Acute Respiratory Distress Syndrome: A New Clinical Perspective"],"prefix":"10.4046","volume":"89","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8011-7986","authenticated-orcid":true,"given":"Si Mong","family":"Yoon","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7697-4272","authenticated-orcid":true,"given":"Yeon 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