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Central message : For a very acid patients (pH<7) a simple easy reminder ”three seven rule” might be useful waiting for a better and more appropriate survival score in this severe population
Perspective statement: Considering the increasing use of ECMO worlwide and the constant worsening of the patients, an adapted tool to predict survival is essential to avoid futile implantations. The present data may contribute to this making decision process, in accordance with real life situations.