IRCT20161220031487N9 IRCT 2018-04-27 Iran University of Medical Sciences Comparison of two treatments for improving the outcomes in awake intubation Comparison of the quality of awake intubation with fiber optics in patients receiving dexmedetomidine with midazolam and fentanyl in Rasoul-e-Akram Hospital in 2016-17 2017-12-21 anticipated 52 Complete https://irct.ir/trial/29629 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: At first, explanations about the method of work, as well as the advantages and disadvantages of both groups, are given to the patient, and they will be informed that they will be allocated to one of the two groups randomly. After receiving the patients' informed consent, using a table of random numbers, patients are randomly allocated in one of the D and F groups. Due to the fact that the syringes will be in equal numbers (shots) in both groups and the syringes are not labeled, the patient will not be aware of the type of the drug being injected, Blinding description: The patient is unaware of the group in which he or she is allocated and the type of the medication he is receiving. After maximizing the effect of medication, the intubation was performed with oral fiber optic by a third-year anesthesia resident, without knowing the prescription drug type. 2-3 Failed or difficult intubation. Intervention 1: Intervention group: infusions of 1mcg / kg of trimodimide dosage in 10 minutes and then continued at 0.5 mcg / kg / h. Intervention 2: Control group: 2 mcg / kg fentanyl and 1 mg midazolam IV. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no more information.