Pulmonology · 2 h ago
Editorial reviews the evolution and reach of global ARDS definitions
An editorial in *Intensive Care Medicine* traces changes in acute respiratory distress syndrome (ARDS) definitions, culminating in the 2024 Global Definition. The authors describe how it broadens diagnostic pathways to include patients on high-flow oxygen and settings where arterial blood gases or advanced imaging may not be available.
- 2024 Global Definition includes three diagnostic pathways.
- Pulse oximetry and lung ultrasound broaden available assessment options.
- Pulse oximetry accuracy may vary by skin tone and shock.
- Editorial discusses definition changes, not new outcome data.
The editorial reviews the development of ARDS definitions, from early clinical descriptions through the 1994 American-European Consensus Conference and the 2012 Berlin definition. It focuses on the 2024 Global Definition, which provides diagnostic pathways for ventilated patients, patients receiving high-flow oxygen, and patients in resource-constrained settings.
The 2024 definition includes pulse oximetry and lung ultrasound, and allows diagnosis in some categories without a positive end-expiratory pressure requirement. The authors argue that these changes may improve access to diagnosis and research participation, particularly outside high-income countries, where most of the global population lives but ARDS studies are disproportionately conducted less often.
The editorial also notes an important limitation: pulse oximetry can be less accurate in people with darker skin tones and in patients with shock. The article is a historical and perspective piece, not a new clinical study; it describes the rationale and potential reach of the definition rather than testing its effects on patient outcomes. A second part is expected to discuss future directions, including subphenotypes.
In practice
The 2024 Global Definition offers clinicians additional routes to identify ARDS, including in patients receiving high-flow oxygen and in settings where arterial blood gases, chest radiography or ventilators may be limited. It incorporates pulse oximetry and lung ultrasound, with some categories not requiring PEEP. This editorial summarizes the definition rather than providing new validation or outcome data, and pulse oximetry has recognized accuracy limitations, including in patients with darker skin tones and those in shock. The article does not establish that applying the expanded criteria improves outcomes.
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Intensive Care Medicine: Defining ARDS: Globalization and personalization to better serve the World - Part 1 ↗This is an automated AI-condensed summary that has not yet been reviewed by an editor. Always consult the full item at the original source.