The most common adverse event in endoscopic procedures is hypoxia. Different airway devices have been investigated in the literature to prevent hypoxia. This study aimed to compare the efficacy and procedural performance of two different airway (GLT and WNJ) devices in ERCP procedures.

ERCP is a procedure that requires intolerable positioning, prolonged air insufflation, and deep levels of anesthesia. The procedure can be performed under general anesthesia or with deep sedation. It becomes more difficult to maintain airway patency in the prone position under deep sedation. Clinicians prefer supraglottic airway devices developed for endoscopic procedures. GLT requires a deeper level of anesthesia. WNJ, on the other hand, can be tolerated with less depth levels of anesthesia. It has been reported in the literature that GLT and WNJ are effective in maintaining patent airway and preventing hypoxia in ERCP procedures. However, both airway devices have not been compared for airway efficiency and ERCP procedure condition.

In this study, the investigators aimed to compare airway efficiency and procedure condition using GLT and WNJ.

Inclusion Criteria:

• ASA Physical Status 1-2
• Elective Procedures
• Body mass index 18.5 - 35 kg/m2

Exclusion Criteria:

• High risk of pulmonary aspiration
• Pregnancy
• Anesthesic drug allergies
• Difficult airway or facial deformities
• Height <155 cm
• Alcohol or narcotic drug usage
• Restrictive or obstructive pulmonary diseases
• Hepatic cardiac or renal failure
• Neurologic or cognitive deficiencies.
• Previous cervical surgery or cervical radiotherapy
• Previous esophagus surgery
• Psychotic problems

Single (Participant) closed envelope technique