I-Gel Versus Disposable Laryngeal Mask (LMA) for General Anesthesia (GA) With Controlled Ventilation

I-Gel Versus Disposable Laryngeal Mask Airway for General Anesthesia With Controlled Ventilation

Randomized controlled trial comparing performance of the I-gel and disposable Laryngeal Mask Airways under controlled ventilation. 200 patients, 100 in each arm. Measurement of peak airway and sealing pressures. Postoperative questionnaires at 1 and 24hrs.

Hypothesis

There is no difference between the performance* of the I-gel and disposable laryngeal mask airways for controlled ventilation under general anesthesia.

*as defined by peak airway pressure and sealing pressures.

Inclusion Criteria:

• Males and females.
• Age 18-89 inclusive.
• ASA grade 1-2.
• Elective surgery

Exclusion Criteria:

• Emergency surgery.
• Surgery within the peritoneum.
• Surgery requiring prone or steep head-down positioning.
• Patients at increased risk of aspiration