A randomized controlled study on pre-oxygenation efficacy and comfort between nasal masks and face masks

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100052669

Enrollment

Unknown

Registered

2021-11-03

Start date

2021-11-01

Completion date

Unknown

Last updated

2022-08-08

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

Conditions

hypoxemia

Interventions

Experimental group1:spontaneous breathing with face mask

Experimental group2:Mouth-closed spontaneous breathing with nasal mask

Experimental group3:Nasal Mask - Nasal Inhale Mouth Exhale

Eligibility

Sex/Gender

All

Age

18 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1. ASA I grade; 2. Aged 18 to 40 years; 3. BMI < 35.

Exclusion criteria

Exclusion criteria: 1. Upper respiratory tract infection; 2. The nasopharyngeal cavity is deformed; 3. Hyperthyroidism (high basal metabolic rate); 4. Pregnant women; 5. Lung diseases (asthma, chronic bronchitis, COPD).

Design outcomes

Primary

Measure	Time frame
Pre-oxygenation efficacy;	—

Secondary

Measure	Time frame
Comfort level;Nasal mask sealing pressure;	—

Countries

China

Contacts

Public ContactSu Kai

Beijing Friendship Hospital, Capital Medical University

tubage_sk@163.com+86 13552313099

Outcome results

None listed

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