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Clinical Study on Airway Ultrasound Predicting Difficult Insertion of the Classic Laryngeal Mask Airway in Adults

Clinical Study on Airway Ultrasound Predicting Difficult Insertion of the Classic Laryngeal Mask Airway in Adults

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500104725
Enrollment
Unknown
Registered
2025-06-23
Start date
2025-06-23
Completion date
Unknown
Last updated
2025-06-30

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

Conditions

Patients scheduled for elective surgery under general anesthesia with laryngeal mask airway (LMA)

Interventions

Case series:N/A

Sponsors

Zhongshan Hospital of Traditional Chinese Medicine
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1: Patients scheduled for elective surgery under general anesthesia with laryngeal mask airway (LMA); 2: Age >=18 years; 3: No gender restriction; 4: ASA physical status I-III; 5: Absence of orofacial or upper airway disorders; 6: Voluntary participation with written informed consent obtained.

Exclusion criteria

Exclusion criteria: 1: Patients with contraindications to Laryngeal Mask Airway (LMA) use; 2: Surgeries requiring lateral or prone positioning; 3: Limited cervical spine mobility preventing neck extension; 4: Other conditions deemed unsuitable for observation by investigators.

Design outcomes

Primary

MeasureTime frame
First-Attempt Success Rate;specificity;sensitivity;—

Secondary

MeasureTime frame
Laryngeal mask malposition rate;—

Countries

China

Contacts

Public ContactBin Li

Zhongshan Hospital of Traditional Chinese Medicine

libin@zsszyy.net+86 137 9070 9875

Outcome results

None listed

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