UnknownNot Applicable

Comparison of Ultrasound-guided Location of Laryngeal Mask With Air Leakage Test

China104 participantsStarted 2021-04-01

Plain-language summary

Compare the accuracy of two methods of ultrasound and air leakage test in positioning laryngeal mask. Validate the relationship between ultrasound scores, air leak levels, and bronchoscopic classification in positioning laryngeal mask

Who can participate

Age range

17 Years – 65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Age is between 17 to 65 years old;
. ASA (Amecican Society of Anesthesiology ) scores I-II;
. Actual weight is between 30 to 100 kilogram;
. Patients undergo selective supine operations under general anesthesia (laryngeal mask);
. Patients agree to participate in our study and sign Informed Consent Form

Exclusion criteria

. Airway stenosis, history of airway masses etc, whicn may cause obstruction to ventilation;
. Swelling of the neck caused by huge mass in the neck and history of neck surgery etc, which doesn't contribute to ultrasound observation;
. Stomach fullness, intestinal obstruction, gastroesophageal reflux disease etc, which may cause reflux aspiration.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Ultrasound scoring system

Timeframe: during procedure (after laryngeal mask's placement)

Air leakage test grading system

Timeframe: during procedure (after laryngeal mask's placement)

Fiberoptic scoring system

Timeframe: procedure (after ultrasound examination or leakage test)

Trial details

NCT IDNCT04390893

SponsorShenzhen Second People's Hospital

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2021-07-31

Contact for this trial

Li Xiong, master

+86-13510602774 levender14@163.com

View on ClinicalTrials.gov More Laryngeal Mask trials