Effects of different types of masks combined with anesthesia mask on blood oxygen during induction of anesthesia

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000030153

Enrollment

Unknown

Registered

2020-02-24

Start date

2020-03-01

Completion date

Unknown

Last updated

2020-02-25

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

Conditions

Blood oxygen

Interventions

NM group:N95 mask

SM group:surgical mask

WG group:wet gauze

control group:Nil

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Approved by the medical ethics committee of the hospital and the patients informed consent; 2. Choose 80 Patients to be intubated under general anesthesia; 3. Aged 18-65 years old; 4. Grade ASA1-2.

Exclusion criteria

Exclusion criteria: 1. OSAS; 2. Difficult airway (Difficult intubation history, incisor tooth spacing less than 3cm, armour spacing less than 6cm, restricted head and neck movements, thick neck, Mallampati grade 3-4, facial deformity); 3. Anemia; 4. Obesity (BMI index greater than 27); 5. Other important organ dysfunction.

Design outcomes

Primary

Measure	Time frame
spo2;PaO2;PaCO2;	—

Secondary

Measure	Time frame
ABP;HR;	—

Countries

China

Contacts

Public ContactFanceng JI

Department of Anesthesiology, Weifang People's Hospital

jifanceng@163.com+86 13563698838

Outcome results

None listed

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