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Decision to extubate.

S K Epstein1

  • 1Medical Intensive Care Unit, Pulmonary and Critical Care Division, Box 369, New England Medical Center, Tufts University School of Medicine, 750 Washington St., Boston, MA 02111, USA. SEpstein@lifespan.org

Intensive Care Medicine
|May 25, 2002
PubMed
Summary

Extubation failure, requiring reintubation, affects 2-25% of patients. Identifying high-risk individuals and providing timely ventilatory support can improve outcomes and reduce mortality.

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Area of Science:

  • Critical Care Medicine
  • Respiratory Medicine
  • Pulmonology

Background:

  • Reintubation within 24-72 hours of planned extubation is a frequent occurrence, impacting 2-25% of patients.
  • Extubation failure is associated with prolonged mechanical ventilation, increased intensive care unit (ICU) and hospital stays, higher tracheostomy rates, and elevated hospital mortality.

Purpose of the Study:

  • To identify risk factors and pathophysiology of extubation failure.
  • To emphasize the importance of accurately predicting extubation outcomes and timely reintubation.

Main Methods:

  • Review of risk factors for extubation failure.
  • Analysis of distinct pathophysiological mechanisms of extubation failure.
  • Evaluation of predictive tests for extubation outcome.

Main Results:

  • Key risk factors include medical, multidisciplinary, or pediatric status; age over 70; prolonged mechanical ventilation; continuous sedation; and anemia (hemoglobin <10 g/dL).
  • Pathophysiology involves upper airway obstruction, inadequate cough, excess secretions, encephalopathy, and cardiac dysfunction.
  • Tests assessing airway obstruction, secretion volume, and cough effectiveness show promise for improving extubation decisions.

Conclusions:

  • Accurate prediction of extubation success is crucial to avoid delays.
  • Timely identification of high-risk patients and prompt re-establishment of ventilatory support can improve patient outcomes.
  • Reducing extubation failure can decrease healthcare resource utilization and mortality.

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