Effect of Head Elevation on LMA Insertion

Asan Medical Center

Status: Completed

Conditions: Laryngeal Masks; Urinary Bladder Neoplasms

Treatments: Procedure: Laryngeal mask airway insertion

Study type: Interventional

Funder types: Other

Identifiers

NCT04229862

2020-0020

Details and patient eligibility

About

The purpose of this study is to compare the first attempt success rate of laryngeal mask airway insertion according to the degree of head elevation.

Full description

The purpose of this study is to compare the first attempt success rate of laryngeal mask airway insertion between 7 cm head elevation and 14 cm head elevation in patients who undergoing transurethral bladder tumor resection.

Enrollment: 110 patients

Sex: All

Ages: 20 to 79 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients who are scheduled transurethral bladder tumor resection under general anesthesia
• 20-79 years of age
• American Society of Anesthesiologists physical status ≤3
• Patients who are voluntarily agreed to this clinical study

Exclusion criteria

• History of difficult airway
• Expected difficult airway by physical examination
• Unstable teeth or teeth loss
• Obesity (body mass index ≥ 30)
• Recent history of upper respiratory infection
• Patients who are not fasted or who are at risk of aspiration

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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110 participants in 2 patient groups

Evaluation with 14 cm high pillow

Experimental group

Description:

When inserting laryngeal mask airway, head elevation is performed using a 14 cm high pillow.

Treatment:

Procedure: Laryngeal mask airway insertion

Evaluation with 7 cm high pillow

Active Comparator group

Description:

When inserting laryngeal mask airway, head elevation is performed using a 7 cm high pillow.

Treatment:

Procedure: Laryngeal mask airway insertion