Intermittent thiopentone for teaching fibreoptic nasotracheal intubation

Area of Science:

• Anesthesiology
• Medical Education
• Respiratory Care

Background:

• Fiberoptic nasotracheal intubation is a crucial skill for anesthesiologists.
• Training in this technique requires a stable patient and optimal visualization conditions.
• Previous methods may have limitations in maintaining patient stability or facilitating learning.

Purpose of the Study:

• To describe and evaluate a technique for teaching fiberoptic nasotracheal intubation.
• To assess the efficacy of intermittent thiopentone for anesthesia during this procedure.
• To monitor patient physiological parameters during the intubation process.

Main Methods:

• Fifty patients undergoing elective dental surgery were included.
• Anesthesia was induced and maintained with intermittent thiopentone.
• Trainee anesthetists performed fiberoptic visualization and intubation.
• Patients spontaneously breathed oxygen-enriched air; suxamethonium facilitated tube passage.
• Continuous monitoring of arterial blood pressure, heart rate, and oxygen saturation was performed.

Main Results:

• Successful intubation time averaged 113 seconds (range 35-480s).
• Cardiovascular changes were comparable to other intubation studies.
• Hemoglobin oxygen saturation remained above 95% in 43 patients and above 93% in 46.
• The lowest recorded oxygen saturation was 91%.

Conclusions:

• Intermittent thiopentone provides suitable conditions for teaching fiberoptic nasotracheal intubation.
• This anesthetic technique effectively maintains patient hemodynamic stability and oxygenation.
• The described method facilitates trainee learning while ensuring patient safety.