Ambu AuraGain and Teleflex LMA Protector Fiberoptic Assessments in Elective Patients

Surgery:

Participant will sign a separate consent form for surgery that describes the procedure and its risks. Participant will receive anesthesia through a catheter (sterile flexible tube) in one of participant's veins. During the procedure, participant's vital signs (heart rate, blood pressure, oxygen levels) will be monitored.

Study Groups:

If participant agrees to take part in this study, demographic information (such as participant's age, sex, and race) will be collected.

Participant will be randomly assigned (as in the flip of a coin) to 1 of 2 study groups. This is done because no one knows if one study group is better, the same, or worse than the other group. Participant will have an equal (50/50) chance of being assigned to either group. One group will use the Ambu Auragain, and the other will use the Teleflex LMA Protector.

Study Procedures:

After general anesthesia is given and participant falls asleep, the anesthesiologist will place the SGAD. The study staff will measure how easy it is to place the SGAD and how long each different step of the placement takes. Correct placement of the SGAD will be checked using a device with a small camera to help the doctor see participant's airway on a screen. A gastric tube will be placed to measure the volume of air and content of the stomach. Additionally the study doctor may place a breathing tube using the SGAD to make sure air is moving in and out of participant's lungs.

Participant will then be positioned and prepared for the surgery. The study staff will be collecting information from the time participant enters the operating room until the time participant leaves.

Additionally, participant will be interviewed after participant's surgery in the recovery room once participant is awake. Participant will be asked about any pain or soreness participant has, as well as any difficulty breathing, swallowing, or talking. This interview may take up to 5 minutes. Participation in the study will be over after the interview.

Inclusion criteria

• Age 18 years of age or older
• Scheduled for an elective surgery requiring general anesthesia
• Scheduled surgery < 4hrs
• American Society of Anesthesiology (ASA) Physical Status I-III
• Body Mass Index (BMI) < 30 kg/m2
• Mallampati I-III
• Able to bite upper lip via Upper Lip Bite Test (ULBT)
• Inter-incisor distance > 2.5cm
• Thyromental distance > 6cm
• Full range of motion in the neck
• Has provided written informed consent

Exclusion criteria

• Under the age of 18 years old
• ASA IV-V
• Require prone positioning for surgery
• Scheduled surgery > 4hrs
• Liquid only diet < 2hrs and/or solids < 8hrs
• High risk of regurgitation
• Exhibits signs of respiratory tract pathology (including a sore throat preoperatively)
• Mallampati IV
• Unable to bite upper lip via Upper Lip Bite Test (ULBT)
• Inter-incisor distance < 2.5cm
• Thyromental distance < 6cm
• Limited neck movement
• Airway pathology/facial abnormality
• Has been diagnosed with/exhibits any mental neurological disorder/disease/condition that would prevent participation in the study in the opinion of the investigator.