Crisis management during anaesthesia: difficult intubation.

Area of Science:

• Anesthesiology
• Patient Safety
• Airway Management

Background:

• Unexpected difficulty during tracheal intubation can lead to severe patient compromise.
• Effective management strategies are crucial for anaesthetists facing airway challenges.
• A structured approach was developed to assist clinicians in managing difficult intubations.

Purpose of the Study:

• To evaluate a specific sub-algorithm for managing difficult intubation.
• To compare a literature-based structured approach with actual anaesthetist management of difficult intubations.

Main Methods:

• Analysis of 147 difficult intubation reports from the Australian Incident Monitoring Study (AIMS).
• Comparison of a structured approach with anaesthetists' reported management of 4000 incidents.
• Identification of anatomical factors contributing to difficult intubation.

Main Results:

• 52% of difficult intubations were unexpected, with 37% causing major physiological changes.
• Oxygen saturation dropped below 90% in 22% of cases; oesophageal intubation occurred in 19%.
• Obesity, limited neck mobility, and mouth opening were common contributing factors.

Conclusions:

• Preoperative clinical tests often fail to predict difficult intubations.
• A pre-learned strategy and structured approach are essential for managing difficult intubations and ventilation issues.
• Recommendations include seeking skilled assistance, postoperative assessment, and clear documentation for future care.