Clinical Scorecard: Redefining ARDS for Global Reach and Personalized Care: Part 2

At a Glance

Key Highlights

• LUNG SAFE, spanning 50 countries, found ARDS in 10% of ICU patients and 23% of ventilated patients; hospital mortality was 40%.
• In a single-center Rwanda study, ARDS occurred in 4% of adult hospital admissions; 70% of affected patients received care entirely outside the ICU, and hospital mortality was 50%.
• The article reports that low tidal volume ventilation, conservative fluid management, and proning in severe ARDS have each demonstrated improved outcomes among ARDS patients.
• The authors argue that accessible ARDS definitions can enable research involving diverse global populations and investigation of treatable traits.
• The authors describe the Global Definition as an actionable framework applicable worldwide, while noting that ARDS remains a syndromic construct without a clear link to biology or treatable traits.

Guideline-Based Recommendations

Diagnosis

• The authors describe an accessible ARDS definition as important for diagnosis and for research inclusion across global settings.
• The authors state that further investigation is needed to establish the reliability and necessity of requiring bilateral opacities in the ARDS definition.

Management

• The article reports that low tidal volume ventilation, conservative fluid management, and proning in severe ARDS have demonstrated improved outcomes among ARDS patients.
• The article reports that conservative fluid management is consistently feasible in resource-constrained settings, while proning and low tidal volume ventilation are frequently feasible.

Monitoring & Follow-up

• The article discusses potential subphenotype features including hypoxemia severity, shock, protein biomarkers, routine laboratory values, vital signs, and physiologic traits; it does not establish these as routine monitoring recommendations.
• Physiologic traits discussed include recruitability, chest wall and pleural pressures, right ventricular dysfunction, dead space fraction, and spontaneous effort.

Risks

• Hospital mortality was 40% in LUNG SAFE and 50% in the single-center Rwanda study.
• The article reports that ARDS survivors may experience long-term, occasionally severe deficits.
• The authors describe higher risks from advanced noninvasive respiratory support in resource-constrained settings as a hypothesis being examined in ongoing trials.

Patient & Prescribing Data

The article discusses patients with ARDS worldwide, including those treated outside ICUs and in resource-constrained settings.

The article reports outcome benefits for low tidal volume ventilation, conservative fluid management, and proning in severe ARDS. Corticosteroids, statins, furosemide, and noninvasive respiratory support are described as interventions under evaluation for distinct subphenotypes; the article does not provide prescribing guidance.

Clinical Best Practices

• The authors describe accessible ARDS definitions and implementation of proven interventions as important for care and research across settings.
• The authors argue that ARDS research should include diverse global populations rather than rely solely on findings from high-income countries.
• The article identifies low tidal volume ventilation, conservative fluid management, and proning in severe ARDS as interventions demonstrated to improve outcomes.
• The authors call for progress linking ARDS subphenotypes and treatable traits with personalized mechanistic targets.

Related Resources & Content

• Practical Platform: ARDS domains
• ARISE-AFRICA trial (NCT04693403)
• BREATHE trial (NCT05754034)