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Risk factors for difficult mask ventilation and difficult intubation among patients undergoing pharyngeal and laryngeal surgery

Risk factors for difficult mask ventilation and difficult intubation among patients undergoing pharyngeal and laryngeal surgery

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2200061492
Enrollment
Unknown
Registered
2022-06-27
Start date
2022-06-15
Completion date
Unknown
Last updated
2023-04-03

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

Conditions

Difficult airway

Interventions

laryngeal surgery group:None

Sponsors

Eye & ENT Hospital, Fudan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18-65 years; 2. ASA 1-2; 3. Laryngeal obstruction degree I-II; 4. There are no symptoms of laryngeal obstruction, but more than 1/2 of the glottis is blocked by laryngeal tumor.

Exclusion criteria

Exclusion criteria: 1. Patients with neck scar; 2. Short neck; 3. Patients with airway difficulties undergoing surgery.

Design outcomes

Primary

MeasureTime frame
difficult mask ventilation;—

Secondary

MeasureTime frame
mouth opening;neck circumference;thyromental distance;Mallampati grade;snoring symptoms;—

Countries

China

Contacts

Public ContactHan Yuan
yuan.han@fdeent.org+86 13852470693

Outcome results

None listed

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