CompletedNot Applicable

Ultrasound-Guided Esophageal Compression During Adult Mask Ventilation

China103 participantsStarted 2024-09-25

Plain-language summary

A total of 103 elective surgery patients who met the inclusion criteria were selected. After screening for eligibility according to the inclusion and exclusion criteria and signing informed consent, they were randomly divided into two groups. Upon entering the operating room, routine ECG monitoring was initiated, and a peripheral vein was opened. Ultrasound was used to measure the baseline cross-sectional area (CSA) of the gastric antrum in the supine position. After general anesthesia induction, positive pressure ventilation was applied via face mask. Group A received no external compression, while Group B underwent esophageal compression under ultrasound guidance.

Who can participate

Age range

18 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 18 to 65 years * American Society of Anesthesiologists (ASA) Physical Status Classification I-II. * Body Mass Index (BMI) between 18 and 28 kg/m². * Patients undergoing elective tracheal intubation for general anesthesia. * Patients scheduled for laparoscopic surgery. * Fasting for ≥8 hours and abstaining from liquids for ≥2 hours before surgery, with low risk of gastroesophageal regurgitation and aspiration. Exclusion Criteria: * Suspected difficult FMV (e.g., age \>55 years, BMI \>26 kg/m², edentulous, history of snoring, and long beard; presence of two or more factors). * Pre-existing respiratory, pharyngeal, laryngeal, facial, or neck pathology. * History of gastrointestinal surgery, gastroesophageal reflux disease (GERD), or high risk of aspiration. * Severe cardiac, cerebral, pulmonary, hepatic, or renal diseases. * Patients requiring non-invasive ventilation prior to surgery. * Patients currently participating in other clinical trials or who refuse to participate.

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

The incidence of gastric distension

Timeframe: During anesthesia induction

Trial details

NCT IDNCT06688097

SponsorLiu Han

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2025-09-12

View on ClinicalTrials.gov More Laparoscopic Surgery trials