the group which selected randomly to try AIR-Q device

the group which selected randomly to try I-LMA device

Endotracheal tube introducers (gum elastic bougie) for emergency intubation The endotracheal tube introducer (ETI) is an effective and inexpensive adjunct to difficult airway management that is easy to use.

ETI is solid introducer 60-70 cm long with a 35 - 40 distally angulated (Coude) tip. They are easy to use, widely available, and have been used as adjuncts to difficult direct laryngoscopy for many decades.

The gum elastic bougie is usually guided by tactile clicks as the device passes the cartilage rings of the trachea. After Supraglottic devices are removed, an ETT can subsequently be railroaded over the bougie.

If the blind intubation is failed through Air Q or Fastrack Intubating laryngeal mask the investigator will use gum elastic bougie to facilitate introducing an endotracheal tube estimation of success rate of endotracheal intubation on the first, second and third attempts

1. Air Q and Fastrach Intubating laryngeal mask insertion time in seconds will be measured (device time).
2. Endotracheal tube (ETT) insertion time will be measured ( ETT time).
3. Total insertion time will be estimated (Device Time + ETT Time )

Incidence of adverse events and complications during and after the procedure will be also recorded. Complications, including laryngospasm, bleeding, false passage, and sore throat will be recorded intraoperatively and in the first 48 postoperative hours.