The use of the video laryngoscope to teach laryngoscopy will improve the performance of tracheal intubation done by novices because it will allow a shared view of the airway leading to a better feedback from the trainer to the trainee.

A group of 30 fourth year medical students and interns rotating through the department of anesthesiology will be studied. Firstly, a standard lecture will be provided in which the description and importance of laryngoscopy and tracheal intubation will be explained. This will include descriptions of anatomy, relevant equipment and technique of tracheal intubation. Following the lecture , the students will be randomly allocated using sealed envelopes into two groups : a control group ( taught with a standard Macintosh Laryngoscope ) and a study group ( taught with the Airtraq video laryngoscope).Each group will receive a demonstration and verbal instruction on how to perform laryngoscopy and tracheal intubation by their instructor.

Students:

Inclusion criteria for the medical student:

• Medical student or intern rotating through the anesthesiology department

Exclusion criteria for the medical student:

• Previous attempts of laryngoscopy in humans
• Subject who refuses participation

Patients:

Inclusion Criteria:

• Age 18 -75 years of age
• ASA PS I, II
• Procedure that will require General anesthesia with tracheal intubation

Exclusion Criteria:

• Age < 18 years old or greater than 75 years of age
• Patient or student who refuses participation
• ASA Physical status class III or greater
• History of lung disease
• History of obstructive sleep apnea
• History of difficult intubation
• Evidence of possible difficult airway (Mallampati Class >2, TMH distance <6 cm, mouth opening <4 cm and limited neck mobility)
• Unanticipated difficult laryngoscopy (defined by inability of the attending anesthesiology to intubate after 2 attempts)
• Patients at risk for aspiration
• Patients with BMI greater than 35
• Pregnant patients