Airway Management Techniques in Tracheal Intubation

Tracheal intubation remains the cornerstone of airway management in both elective and emergency settings, aiming to secure the airway, facilitate ventilation and prevent aspiration. The procedure encompasses preparation, induction, tube placement and confirmation stages. Preparation includes patient assessment of anatomic and physiologic difficulty, assembly of equipment and simulation of rescue strategies. Pre-oxygenation and apnoeic oxygenation techniques are used to maximise safe apnoea time, while rapid sequence induction minimises the interval between loss of consciousness and tube insertion, reducing aspiration risk. Direct laryngoscopy has long been the standard method for glottic visualisation, but video laryngoscopy has gained prominence by offering enhanced views and shared visualization among team members. Supraglottic airway devices serve as both primary and rescue tools, and emergency front-of-neck access provides a last-resort option when non-surgical approaches fail. First-pass success is a critical quality metric, as multiple attempts correlate with hypoxaemia, haemodynamic collapse and airway trauma. Recent advances address both device innovation and human factors, emphasising cognitive aids, team briefing, checklists and the tailored choice of induction agents and neuromuscular blockers. Comprehensive guidelines now integrate pre-emptive identification of high-risk scenarios, simulation-based training and algorithmic pathways to reduce complications and improve global outcomes.

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Airway Management Techniques in Tracheal Intubation publication trend

The graph below shows the total number of articles in airway management techniques in tracheal intubation across all publications each year (not limited to Nature Index journals).

Technical terms

Direct laryngoscopy: Traditional technique using a rigid blade to expose the glottis by line-of-sight.

Video laryngoscopy: Use of a camera-equipped blade to magnify and share glottic view on a screen.

Rapid sequence induction: Protocol combining sedative and paralytic agents to minimise aspiration risk and expedite tube placement.

Pre-oxygenation: Delivery of high-concentration oxygen before induction to extend safe apnoea time.

Apnoeic oxygenation: Oxygen insufflation during apnoea to maintain oxygen saturation beyond the induction phase.

Supraglottic airway device: A mask or tube placed above the vocal cords to facilitate ventilation when intubation is difficult.

Front-of-neck access: Emergency surgical or percutaneous entry through the cricothyroid membrane when upper-airway techniques fail.

First-pass success: Successful endotracheal tube placement on the initial intubation attempt, associated with fewer complications.

References

1. Ketamine versus etomidate as an induction agent for tracheal intubation in critically ill adults: a Bayesian meta-analysis. Critical Care (2024).
2. Etomidate versus Ketamine as Prehospital Induction Agent in Patients with Suspected Severe Traumatic Brain Injury. Anesthesiology (2024).
3. Guidelines for the management of tracheal intubation in critically ill adults. British Journal of Anaesthesia (2017).
4. Tracheal intubation in critically ill patients: a comprehensive systematic review of randomized trials. Critical Care (2018).