News techniques of intubation by indirect laryngoscopy have arrived in operating rooms but they are still too restricted to situations (difficult intubation criteria ..). It wanted to focus on indirect laryngoscopy by Airtraq. This technique allows better exposure during intubation while limiting mouth opening and cervical hyper extension, but also dental trauma and lip wounds. It also reduces the duration of laryngoscopy and therefore at the same time the apnea time. After a review of the literature, it has been proven that its use reduces haemodynamic changes during intubation. But these studies have been realized only in very particular patients (obese, heart failure) and with induction protocols that are not used routinely in our operating theaters.

Reasons why it decided to carry out this study, on the one hand to find these results and especially to be able to extend them to the whole population.

Inclusion Criteria:

• Specific medical conditions: ASA 1 or 2
• Patient having given written consent to participate in the category 2 trial
• Intubation realized by experienced person
• Social Insured Patient
• Patient willing to comply with all procedures of the study and its duration

Exclusion Criteria:

• Demographic characteristics: minor, over 65
• Medical history: history of difficult intubation, hypertension
• Lille intubation score greater than or equal to 7
• Treatments in progress: Beta taking blocking the day of the operation.
• Administrative reasons: inability to receive informed information, inability to participate in the entire study, lack of coverage by the social security system, refusal to sign consent