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ARDS — ECMO Decision Criteria

When to escalate to extracorporeal membrane oxygenation in severe acute respiratory distress syndrome.

Written by: Saygı Hospital Health Guide Editorial Board
Published:

This content is for general information; please consult your physician for diagnosis and treatment.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Göğüs Hastalıkları department. Book Appointment →

What is ARDS — ECMO Decision Criteria?

Acute respiratory distress syndrome (ARDS) is severe non-cardiogenic pulmonary edema characterized by bilateral infiltrates and refractory hypoxemia; despite optimal lung-protective ventilation, prone positioning, and neuromuscular blockade, some patients have life-threatening hypoxemia or hypercapnia.

Veno-venous extracorporeal membrane oxygenation (VV-ECMO) provides external gas exchange, allowing ultra-protective ventilation and lung rest while reversible causes of ARDS resolve.

Decision criteria integrate severity (e.g., PaO2/FiO2 < 80 mmHg, Murray score, EOLIA criteria), absence of irreversible underlying lung disease, age and comorbidities, duration of mechanical ventilation, and center expertise; structured referral pathways with mobile ECMO retrieval improve outcomes.

Symptoms

Severe refractory hypoxemia despite high FiO2 and PEEP
PaO2/FiO2 ratio less than 80 mmHg
Persistent respiratory acidosis with pH < 7.25
Inability to tolerate lung-protective tidal volumes
Hemodynamic instability requiring rescue interventions
Failed prone positioning trial
Air leaks and barotrauma

Risk Factors

Severe pneumonia (bacterial, viral, COVID-19)
Aspiration pneumonia
Massive transfusion and TRALI
Sepsis with severe ARDS
Trauma and pulmonary contusion
Pancreatitis with ARDS
Inhalational lung injury

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Refractory hypoxemia despite optimal therapy
  • P/F ratio falling below 80 mmHg
  • Failed prone positioning
  • Persistent respiratory acidosis
  • Need for ultra-protective ventilation
  • Concern for irreversible lung injury without ECMO
  • Early discussion with ECMO center for high-risk patients

Treatment Methods

01
Maximize lung-protective ventilation and prone positioning
02
Neuromuscular blockade in severe early ARDS
03
Early consultation with ECMO center
04
VV-ECMO cannulation in eligible patients
05
Daily multidisciplinary review on ECMO support
06
Weaning trials and decannulation when lung recovery occurs
07
Long-term post-ICU follow-up for ARDS survivors

Which Department to Visit?

You can visit our Göğüs Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Göğüs Hastalıkları Department

Let us help you

You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.