Comparison of the Efficacy and Safety of Video and Non-Video Laryngeal Mask Airways in Nasal Endoscopic Surgery: A Multicenter, Prospective, Randomized Controlled Trial

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2600118842

Enrollment

Unknown

Registered

2026-02-11

Start date

2026-03-01

Completion date

Unknown

Last updated

2026-02-16

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

Conditions

None listed

Interventions

Intervention group:LMA (Laryngeal Mask Airway)

Control group:Visual Flexible Laryngeal Mask (Meiyank Visual Laryngeal Mask)

Eligibility

Sex/Gender

All

Age

18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18–80 years; 2. ASA classification: I–III; 3. BMI:18-30kg/m2; 4. Agreed to participate in this study, and signed the informed consent form prior to surgery.

Exclusion criteria

Exclusion criteria: 1. Full stomach; 2. Gastroesophageal reflux; 3. Achalasia of the cardia; 4. Anticipated difficult airway, including significant oral and pharyngeal diseases, anatomical abnormalities, or limited mouth opening (such as oral tumors, tonsillar hypertrophy, temporomandibular joint dysfunction, craniofacial deformities, or mouth opening less than 3 cm); 5. Pregnant or lactating women; 6. Patients with an expected surgery duration >3 hours;

Design outcomes

Primary

Measure	Time frame
The proportion of satisfactory glottic exposure based on successful ventilation;	—

Secondary

Measure	Time frame
Changes in SPO2, MAP, and HR;The incidence of related complications;The final success rate of laryngeal mask ventilation.;the incidence of special situations and their management plans during surgery.;Leak pressure;Anesthesiologist satisfaction score;First-attempt laryngeal mask insertion success rate;Percentage of glottic opening score;Otolaryngologist satisfaction score;The time taken for the first successful insertion of the laryngeal mask;Laryngeal mask inner surface blood staining score;Laryngeal mask alignment score after insertion;Peak airway pressure during mechanical ventilation;Laryngeal mask rotation score;Number of laryngeal mask insertions;Leak volume;	—

Measure

Time frame

Changes in SPO2, MAP, and HR;The incidence of related complications;The final success rate of laryngeal mask ventilation.;the incidence of special situations and their management plans during surgery.;Leak pressure;Anesthesiologist satisfaction score;First-attempt laryngeal mask insertion success rate;Percentage of glottic opening score;Otolaryngologist satisfaction score;The time taken for the first successful insertion of the laryngeal mask;Laryngeal mask inner surface blood staining score;Laryngeal mask alignment score after insertion;Peak airway pressure during mechanical ventilation;Laryngeal mask rotation score;Number of laryngeal mask insertions;Leak volume;

—

Countries

China

Contacts

Public ContactLili Wu

Bejing Tongren Hospital, Capital Medical Uniersity

trmzwulili@126.com+86 10 5826 9911

Outcome results