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Structural Modification In Supraglottic Airway Device

Structural Modification In Supraglottic Airway Device Enhances Exchange Between Supraglottic & Endotracheal Ventilation Modes

Who can join

Ages 18 to 100 · All sexes

Inclusion Criteria:

1. Adult patients
2. scheduled for a general anesthesia procedure with ETT \& muscle relaxation

Exclusion Criteria:

1. Patients who are not able to consent
2. Non English Speaking
3. History of difficult airway
4. Physical exam of airway which suggests difficulty in airway management or need to use special equipment
5. BMI \>35
6. Gastroesophageal reflux disease
7. Anesthetic plan other than general anesthesia
8. Emergency procedures

About the study

The proposed A/Z modification of a supraglottic airway (SGA) incorporates an opening in the SGA body that enables access to the endotracheal tube (ETT) through the body of the SGA without the need of using an exchange catheter, thus enabling an ETT to move in the body of the SGA and convert a supraglottic to endotracheal ventilation. In its original form an adaptor made from same material currently used in the endotracheal tubes can make ventilation through the proposed airway device possible in exactly the same manner of a conventional SGA currently used. This adapter also known as the R-piece can be replaced with an ETT. The modification also allows placement of SGA over an existing ETT to convert and endotracheal (ET) to supraglottic (SG) mode of ventilation without the need to use an exchange catheter.

What is being tested

• A/Z Supraglottic airway (device)

Sponsor: The Cleveland Clinic · Participants: 100 · Started: Sep 30, 2020

Contact the study team

• Rafi Avitsian, MD · Phone: 216-444-9735
• Mark Mettler · Phone: 216-445-8281

Official record on ClinicalTrials.gov — NCT04498598

Locations in the U.S.

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.