Factors associated with extubation failure in an intensive care unit: a case-control study

Area of Science:

• Critical Care Medicine
• Pulmonary Medicine
• Clinical Research

Background:

• Extubation failure in intensive care units (ICUs) poses significant challenges.
• Predicting and preventing extubation failure is crucial for patient recovery and resource management.

Purpose of the Study:

• To identify clinical factors associated with extubation failure in ICU patients.
• To enhance understanding of predictors for successful ventilator weaning.

Main Methods:

• A retrospective, quantitative case-control study involving 480 ICU patients.
• Analysis included clinical parameters for ventilator weaning, utilizing Fisher's exact test, chi-square test, Student's t test, and Mann-Whitney test.

Main Results:

• Extubation success was achieved in 86.5% of patients; failure occurred in 13.5%.
• Factors associated with extubation failure included positive fluid balance, higher APACHE II scores, weak cough, and abundant pulmonary secretions.
• Successful extubation was linked to a more negative fluid balance and weaker cough presence.

Conclusions:

• Positive fluid balance is a significant predictor of extubation failure.
• Inefficient cough or inability to clear airway secretions are critical factors contributing to extubation failure.
• These findings can inform clinical strategies to reduce extubation failure rates.