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Effect of Paratracheal Esophagus Pressure on the Insertion of Laryngeal Mask Airway

NCT04106635 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 108

Last updated 2021-01-13

No results posted yet for this study

Summary

Laryngeal mask airway is inserted into the oral cavity and seals the upper esophagus and the surrounding tissue, effectively securing airway. Laryngeal mask airway has been widely adopted in the clinical practice.

On the other hand, cricoid pressure has been used to reduce the risk of pulmonary aspiration of gastric contents during induction of general anesthesia. However, cricoid pressure might impede placement of the laryngeal mask airway, thereby preventing effective ventilation.

Recently, left paratracheal pressure was introduced as an alternative to cricoid pressure and reported to be more effective than cricoid pressure in the prevention of gastric air insufflation during positive-pressure ventilation by facemask. Since this method compresses low left paratracheal level, it may affect the successful insertion of laryngeal mask airway.

In this study, the investigators aimed to evaluate the effect of paratracheal esophagus pressure on the insertion of laryngeal mask airway compare to conventional cricoid pressure.

Conditions

  • General Anesthesia
  • Pulmonary Aspiration

Interventions

PROCEDURE

Paratracheal pressure

To apply paratracheal pressure, the thumb was placed over the left side of the trachea cephalad to the clavicle and medial to the sternocleidomastoid muscle.

PROCEDURE

Cricoid pressure

To apply cricoid pressure, the cricoid cartilage is compressed by 30N force with a single-handed three finger maneuvre towards the vertebral bodies.

Sponsors & Collaborators

  • Ajou University School of Medicine

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
19 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-01-02
Primary Completion
2020-07-17
Completion
2020-07-17

Countries

  • South Korea

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04106635 on ClinicalTrials.gov