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Related Experiment Videos

Fluid balance and weaning outcomes.

Anupama Upadya1, Lisa Tilluckdharry, Visvanathan Muralidharan

  • 1Pulmonary and Critical Care, Bridgeport Hospital and Yale University School of Medicine, 267 Grant Street, Bridgeport, CT 06610, USA. pcmant@bpthosp.org

Intensive Care Medicine
|September 30, 2005
PubMed
Summary

Fluid balance impacts mechanical ventilation weaning outcomes. Negative fluid balance, particularly 24 hours before breathing trials, independently predicts successful weaning, suggesting a modifiable factor for improving patient liberation.

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Area of Science:

  • Critical Care Medicine
  • Pulmonary Medicine
  • Fluid Balance Management

Background:

  • Mechanical ventilation is a life support measure for respiratory failure.
  • Successful weaning from mechanical ventilation is crucial for patient recovery and reducing healthcare costs.
  • Fluid balance management is a common intervention in critically ill patients.

Purpose of the Study:

  • To investigate the association between fluid balance and outcomes of weaning from mechanical ventilation.
  • To identify if fluid balance is an independent predictor of weaning success.

Main Methods:

  • Prospective data collection from 87 mechanically ventilated patients.
  • Measurement of daily and cumulative fluid balance (inputs minus outputs).
  • Analysis of demographic, physiological, and weaning data, including breathing trials (BT).

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Main Results:

  • Positive fluid balance was significantly greater in patients who failed weaning compared to those who succeeded.
  • Negative cumulative fluid balance 24 hours prior to BTs (OR=2.9) and overall cumulative fluid balance (OR=3.4) were independently associated with first-day weaning success.
  • Negative fluid balance was as predictive of weaning outcomes as the f/Vt parameter.

Conclusions:

  • Fluid balance is a potentially modifiable factor associated with mechanical ventilation weaning outcomes.
  • Further randomized studies are needed to confirm if diuresis to correct positive fluid balance can expedite liberation from mechanical ventilation.