Canceled by the investigator The effect of gastric ultrasonography on assessing positive end-expiratory pressure in patients with general anesthesia using laryngeal mask

The effect of gastric ultrasonography on assessing positive end-expiratory pressure in patients with general anesthesia using laryngeal mask

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100052268

Enrollment

Unknown

Registered

2021-10-24

Start date

2021-10-18

Completion date

Unknown

Last updated

2023-06-26

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

Conditions

gastric flatulence

Interventions

0 PEEP Group:0 PEEP

5 PEEP Group:5 PEEP

10 PEEP Group:10 PEEP

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1, ASA classification I-II; 2. Body mass index 18-30kg/m^2; 3. Patients with elective general anesthesia for 1 to 3 hours; 4. Aged 18 to 65 years.

Exclusion criteria

Exclusion criteria: 1. Patients with contraindications for laryngeal mask use; 2. Acute pharyngitis and oral soft tissue infection or pain and discomfort; 3. Patients with limited head and neck back, difficulty in opening the mouth, and pharyngeal tumors; 4. Failure to fast as prescribed; 5. History of gastrointestinal diseases; 6. Laparoscopic surgery.

Design outcomes

Primary

Measure	Time frame
Cross-sectional area of gastric antrum;''Comet tail sign'' in ultrasound imaging;	—

Secondary

Measure	Time frame
Peak airway pressure;Airway platform pressure;Incidence of postoperative nausea and vomiting;Heart rate;Blood pressure;Times of using vasoactive drugs;	—

Countries

China

Contacts

Public ContactChen Shoulin

The Second Affiliated Hospital of Nanchang University

ndefy98008@ncu.edu.cn+86 13367000367

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026