LMA Cuff Pressure and LMA-induced Complications

Mayo Clinic

Status: Completed

Conditions: Dysphagia; Dysphonia; Sore Throat

Treatments: Device: Standard inflation of LMA cuff; Device: Pressure check with syringe recoil; Device: Pressure check by pressure transducer

Study type: Observational

Funder types: Other

Identifiers

NCT01385969

11-001506

Details and patient eligibility

About

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..

Enrollment: 360 patients

Sex: All

Ages: 18 to 99 years old

Volunteers: No Healthy Volunteers

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

Trial design

360 participants in 3 patient groups

Standard Practice

Treatment:

Device: Standard inflation of LMA cuff

Syringe recoil

Treatment:

Device: Pressure check with syringe recoil

Pressure Transducer

Treatment:

Device: Pressure check by pressure transducer