Setting positive end-expiratory pressure in acute respiratory distress syndrome

Sarina Sahetya, Ewan C. Goligher, Roy G Brower

Research output: Contribution to journalReview article

Abstract

Positive end-expiratory pressure (PEEP) has been used during mechanical ventilation since the first description of acute respiratory distress syndrome (ARDS). In the subsequent decades, many different strategies for optimally titrating PEEP have been proposed. Higher PEEP can improve arterial oxygenation, reduce tidal lung stress and strain, and promote more homogenous ventilation by preventing alveolar collapse at end expiration. However, PEEP may also cause circulatory depression and contribute to ventilatorinduced lung injury through alveolar overdistention. The overall effect of PEEP is primarily related to the balance between the number of alveoli that are recruited to participate in ventilation and the amount of lung that is overdistended when PEEP is applied. Techniques to assess lung recruitment from PEEP may help to direct safer and more effective PEEP titration. Some PEEP titration strategies attempt to weigh beneficial effects on arterial oxygenation and on prevention of cyclic alveolar collapse with the harmful potential of overdistention. One method for PEEP titration is a PEEP/FIO2 table that prioritizes support for arterial oxygenation. Other methods set PEEP based on mechanical parameters, such as the plateau pressure, respiratory system compliance, or transpulmonary pressure. No single method of PEEP titration has been shown to improve clinical outcomes compared with other approaches of setting PEEP. Future trials should focus on identifying individuals who respond to higher PEEP with recruitment and on clinically important outcomes (e.g., mortality).

Original languageEnglish (US)
Pages (from-to)1429-1438
Number of pages10
JournalAmerican Journal of Respiratory and Critical Care Medicine
Volume195
Issue number11
DOIs
StatePublished - Jun 1 2017

Fingerprint

Positive-Pressure Respiration
Adult Respiratory Distress Syndrome
Lung
Ventilation
Pressure
Lung Injury
Artificial Respiration
Respiratory System
Compliance

Keywords

  • Acute respiratory distress syndrome (ARDS)
  • Mechanical ventilation
  • Positive end-expiratory pressure (PEEP)

ASJC Scopus subject areas

  • Medicine(all)
  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine

Cite this

Setting positive end-expiratory pressure in acute respiratory distress syndrome. / Sahetya, Sarina; Goligher, Ewan C.; Brower, Roy G.

In: American Journal of Respiratory and Critical Care Medicine, Vol. 195, No. 11, 01.06.2017, p. 1429-1438.

Research output: Contribution to journalReview article

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