Cricoid Pressure vs. Paralaryngeal Pressure to Prevent Regurgitation

A Comparison of the Effects of Cricoid Pressure and Paralaryngeal Pressure to Prevent Regurgitation of Gastric Contents

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03558633

Enrollment

Registered

2018-06-15

Start date

2018-06-01

Completion date

2019-06-05

Last updated

2019-08-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intubation Complication

Keywords

Cricoid pressure, Paralaryngeal pressure, Intubation

Brief summary

Comparing the effects of ' Cricoid pressure' or 'Paralaryngeal pressure' during endotracheal intubation procedure.

Detailed description

Applying Cricoid pressure is widely used procedure to prevent gastric contents regurgitation during endotracheal intubation. To find out effectiveness external pressure is applied, the investigators will evaluate the relative position of esophagus and trachea. And also comparing the effects of Cricoid pressure and Paralaryngeal pressure during whole tracheal intubation procedures. 1. Confirm the relative positions between esophagus and trachea in awake patients by using ultrasonography. 2. Compare the effect of 'Cricoid pressure' and 'Paralaryngeal pressure' to esophageal opening during tracheal intubation procedure as below points. 1\) Awake states. (Before sedation) 2) Anesthetized states. (After muscle relaxation) 3) During direct intubation procedure.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

19 Years to No maximum

Healthy volunteers

Inclusion criteria

* Who would be scheduled any surgery under general anesthesia and agree with the purpose of the study

Exclusion criteria

* Diseases or anatomical abnormalities in the neck, larynx, pharynx or esophagus, * Aspiration tendency * Known or predicted difficult airway.

Design outcomes

Primary

Measure	Time frame	Description
Occlusion of esophagus	for 1 minute during direct laryngosopy	Occlusion of esophagus is checked under the application of cricoid and paralaryngeal pressures during direct laryngsocpy

Secondary

Measure	Time frame	Description
The relative position of the upper esophageal end to the glottis	1 minute before and after the induction of anesthesia, during direct laryngoscopy	The position assessed by using ultrasonography and direct visualization
The outer anteroposterior diameter of the upper esophageal end	During 1 minute in awake and anesthetized paralyzed states	The outer anteroposterior diameter of the upper esophageal end is assessed before and durng the application of cricoid and paralaryngeal pressures.
POGO score	during direct laryngoscopy	POGO score under the application of cricoid and paralaryngeal pressures

Countries

South Korea

Outcome results