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PEEP titration during prone positioning for acute respiratory distress syndrome.

  • Author(s): Beitler, Jeremy R
  • Guérin, Claude
  • Ayzac, Louis
  • Mancebo, Jordi
  • Bates, Dina M
  • Malhotra, Atul
  • Talmor, Daniel
  • et al.
Abstract

No major trial evaluating prone positioning for acute respiratory distress syndrome (ARDS) has incorporated a high-positive end-expiratory pressure (high-PEEP) strategy despite complementary physiological rationales. We evaluated generalizability of three recent proning trials to patients receiving a high-PEEP strategy. All trials employed a relatively low-PEEP strategy. After protocol ventilator settings were initiated and the patient was positioned per treatment assignment, post-intervention PEEP was not more than 5 cm H2O in 16.7 % and not more than 10 cm H2O in 66.0 % of patients. Post-intervention PEEP would have been nearly twice the set PEEP had a high-PEEP strategy been employed. Use of either proning or high-PEEP likely improves survival in moderate-severe ARDS; the role for both concomitantly remains unknown.

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