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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: J Trauma Acute Care Surg. 2016 Feb;80(2):308–312. doi: 10.1097/TA.0000000000000903

Table 1. North American European Consensus Conference and Berlin Definition.

AECC Definition Berlin Definition
1. Acute Onset 1. Acute Onset within 7 days
2. Bilateral pulmonary infiltrates consistent with pulmonary edema 2. Bilateral pulmonary infiltrates consistent with pulmonary edema
3. Impaired oxygenation:

  • PaO2/FiO2 ratio < 300 mm Hg → ALI

  • PaO2/FiO2 ratio < 200 mm Hg → ARDS

 3. Impaired Oxygenation

  • PaO2/FiO2 ratio 200 – 300 mm Hg → mild

  • PaO2/FiO2 ratio 100 – 200 mm Hg → moderate

  • PaO2/FiO2 ratio < 100 mm Hg → severe
4. No evidence of left heart failure PAWP ≤ 18 4. Impaired oxygenation not fully explained by cardiac failure