Comparison of Ambu Auragain and I-Gel Supraglottic Airways in Adult Patients at an Ambulatory Surgery Center

University of Minnesota148 enrolled

Overview

The purpose of this study is to determine if an I-gel laryngeal mask airway (LMA) has a higher oropharyngeal leak pressure compared to an Ambu Auragain in adult patients in an ambulatory surgery center.

Patients who are scheduled for elective ambulatory surgery under general anesthesia will be randomized to one of two groups. Group 1 will receive an I-gel laryngeal mask airway (LMA) and group 2 will receive an Ambu Auragain LMA.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

BASIC_SCIENCE

Masking

SINGLE

Enrollment

148

Conditions

Anesthesia Surgery

Interventions

I-Gel Laryngeal Mask AirwayDEVICE

The I-Gel Laryngeal Mask Airway is a medical device that keeps a patient's airway open during anaesthesia or unconsciousness.

Ambu Auragain Laryngeal Mask AirwayDEVICE

The Ambu Auragain Laryngeal Mask Airway is a medical device that keeps a patient's airway open during anaesthesia or unconsciousness.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 80 Years

Medical Language ↔ Plain English

Inclusion Criteria: \- undergoing outpatient ambulatory surgery under general anesthesia that is amenable to using a laryngeal mask airway Exclusion Criteria: * non-English speaking patients * patients with abnormal airway anatomy

Locations (1)

University of Minnesota

Minneapolis, Minnesota, United States

Outcomes

Primary Outcomes

Oropharyngeal Leak Pressure (OLP)

OLP will be measured immediately after insertion. This will be accomplished by closing the expiratory valve while keeping fresh gas flow at 3 liters/minute until equilibrium is reached. Pressure will be reported in cmH2O.

Time frame: immediately after placement

Secondary Outcomes

Time to Placement

Time required to place laryngeal mask airway will be measured and reported in seconds.

Time frame: time from opening mouth to successful placement (4 hours)

Sore Throat

Participants will be asked upon discharge from recovery room (approximately 8 hours post surgery) to rate the soreness of their throat on a numerical rating scale of 0-10 (0 being no soreness and 10 being maximum imaginable soreness). Participants will be asked to rate throat soreness again via phone call approximately 24 hours after surgery.

Time frame: Pain right before discharge from pacu (8 hours)

Sore Throat

Time frame: 24 hours post-surgery

Data from ClinicalTrials.gov

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