Management of Refractory Hypoxemia in ARDS

Minerva Anestesiol. 2013 Oct;79(10):1173-9. Epub 2013 Jul 15.

Abstract

Severe hypoxemia is the hallmark of ARDS. However, unmanageable refractory hypoxemia fortunately is a rare occurrence in patients with ARDS and an infrequent cause of death in ARDS. However, in some patients, in spite of the application of lung protective ventilation with moderate to high levels of end-expiratory pressure (PEEP), refractory hypoxemia remains unresolved. When refractory hypoxemia persists, we first recommend the use of lung recruitment maneuvers and a decremental PEEP trial, if this does not resolve the refractory hypoxemia prone positioning should be attempted. The use of aerosolized pulmonary vasodilators can be used to buy time when these approaches fail as the patient is transitioned to extracorporeal membrane oxygenation. We also find that there is now sufficient evidence to recommend against the use of high frequency oscillation in the management of refractory hypoxemia.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • High-Frequency Ventilation
  • Humans
  • Hypoxia / drug therapy
  • Hypoxia / etiology*
  • Hypoxia / therapy*
  • Neuromuscular Blocking Agents / therapeutic use
  • Positive-Pressure Respiration
  • Prone Position
  • Pulmonary Circulation / drug effects
  • Respiratory Distress Syndrome, Adult / complications*
  • Respiratory Distress Syndrome, Adult / drug therapy
  • Respiratory Distress Syndrome, Adult / therapy*
  • Vasodilator Agents / therapeutic use

Substances

  • Neuromuscular Blocking Agents
  • Vasodilator Agents