LMA Cuff Pressure and LMA-induced Complications

Using the Natural Recoil of the Inflating Syringe as a Safety Valve to Limit LMA Cuff Pressure and Decrease LMA-Induced Complications

The purpose of this study is to determine if using 20 mL B.Braun syringes to inflate LMAs and allowing them to recoil will put the pressure of the LMA cuff within the safety range. It will also determine if remaining within this safety range has an effect on complications after surgery..

Inclusion Criteria:

• Registered Mayo Clinic in Florida patients scheduled to undergo a surgery
• Planned use of LMA during surgery
• between the ages of 18-99
• short duration (<2 hours elective surgery)

Exclusion Criteria:

• recent history of upper respiratory tract infection
• intra-cavitary or laparoscopic procedure
• risk of pulmonary aspiration
• known difficult airway
• history of gastric reflux
• BMI > 40
• lateral or prone positions
• oral or nasal surgery