Repeated Orotracheal Intubation in Mice

Overview

This article describes a refined, noninvasive method for intubating laboratory mice, suitable for studies requiring serial monitoring of respiratory function. The protocol allows for repeat measurements of lung function, minimizing experimental variability.

Key Study Components

Area of Science

• Neuroscience
• Respiratory physiology
• Laboratory animal techniques

Background

• Intubation is critical for studies involving lung function.
• Traditional methods may involve invasive techniques.
• Noninvasive approaches can enhance animal welfare.
• Understanding trachea identification is essential for this method.

Purpose of Study

• To provide a refined intubation technique for laboratory mice.
• To facilitate serial monitoring of respiratory function.
• To reduce the number of mice needed for experiments.

Methods Used

• Noninvasive intubation technique demonstrated visually.
• Use of a 15 to 20-centimeter length of 3-0 silk for intubation platform.
• Collaboration with a veterinarian for technique demonstration.
• Focus on identifying the trachea through the skin of the ventral neck.

Main Results

• Successful intubation without visualization of the trachea through the oral cavity.
• Reduced variability in lung function measurements.
• Enhanced ability to study chronic lung diseases.
• Demonstrated technique improves experimental outcomes.

Conclusions

• The refined intubation method is effective and noninvasive.
• This protocol is valuable for researchers studying respiratory diseases.
• Visual demonstration is crucial for proper technique execution.

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