Tracheostomy decannulation failure rate following critical illness: a prospective descriptive study

Area of Science:

• Critical Care Medicine
• Respiratory Therapy
• Surgical Outcomes

Background:

• Tracheostomy is vital for prolonged mechanical ventilation and airway protection.
• Evidence guiding tracheostomy weaning and removal timing is limited, relying on clinical judgment.
• This study aimed to describe decannulation practices and failure rates in critically ill patients.

Purpose of the Study:

• To analyze the practice of tracheostomy decannulation in a critical care setting.
• To determine the failure rate of decannulation procedures.
• To identify factors contributing to decannulation failure and associated outcomes.

Main Methods:

• A prospective descriptive study was conducted in a tertiary metropolitan hospital's ICU.
• Data were collected from consecutive patients undergoing tracheostomy between March 2002 and December 2006.
• Descriptive and inferential statistical tests were used for data analysis.

Main Results:

• A total of 823 decannulation decisions were made, with 40 failures (4.8% failure rate).
• Sputum retention was the primary cause of failure; 60% of failures occurred within 24 hours.
• No mortality was associated with failed decannulation; 25 episodes required simple stoma recannulation, while 15 needed reintubation and ICU readmission.

Conclusions:

• Clinical judgment in decannulation timing yields failure rates comparable to existing literature.
• While reintubation occurred in over a third of failures, no significant adverse events or mortality were observed.
• Nurses require heightened vigilance in the first 24 hours post-decannulation, especially the initial 4 hours, to detect respiratory compromise.