[History of Tracheal Intubation: 2. Use for Prevention of Airway Obstruction]

Area of Science:

• Medical History
• Anesthesiology
• Respiratory Medicine

Background:

• Sir William Macewen is credited with the first tracheal intubation during general anesthesia.
• Macewen documented four predecessors (Desault, Bouchut, Schrötter, Trendelenburg) who performed tracheal intubation prior to his work, without anesthesia.

Observation:

• A re-analysis of Macewen's descriptions confirms the accuracy of his accounts regarding these earlier intubations.
• The primary purpose identified for these historical tracheal intubations was the prevention of airway obstruction.

Findings:

• The study estimates the dates of these early tracheal intubation procedures.
• Literature searches revealed additional individuals who performed tracheal intubation before Desault, with diverse medical aims.

Implications:

• This research refines the historical timeline of tracheal intubation.
• Understanding the early motivations behind tracheal intubation provides valuable context for its evolution in modern medicine.