Effect of Paratracheal Esophagus Pressure on the Insertion of Laryngeal Mask Airway
NCT ID: NCT04106635
Last Updated: 2021-01-13
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
108 participants
INTERVENTIONAL
2020-01-02
2020-07-17
Brief Summary
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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.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
OTHER
TRIPLE
Study Groups
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PP group
During the induction of anesthesia, left paratracheal pressure is applied by 30N force with thumb after confirmation of the location of the esophagus using ultrasound.
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.
CP group
During the induction of anesthesia, cricoid pressure is applied by 30N force with three finger.
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.
Interventions
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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.
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.
Eligibility Criteria
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Inclusion Criteria
* American Society of Anesthesiologists Classification 1-2
Exclusion Criteria
* High risk of regurgitation (hiatus hernia, gastro-esophageal reflux disease, non-fasting status)
* Criteria for difficult airway (limitation of mouth opening/neck extension, Mallampati class IV),
19 Years
70 Years
ALL
No
Sponsors
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Ajou University School of Medicine
OTHER
Responsible Party
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Jong Yeop Kim
Professor
Locations
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Ajou university hospital
Suwon, Gyeonggi-do, South Korea
Countries
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Other Identifiers
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MED-INT-19-361
Identifier Type: -
Identifier Source: org_study_id
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