Difficult Airway
Conditions
Interventions
of 
mask 
and 
intubation
2. 
(3D-CT)
Including:
1. 
prediction 
Gold Standard:Clinical assessment for difficult mask ventilation:
(1) oxygen saturation >92% without anesthesiologist assistance
(2) gas leak when use the face mask
(3) has to increase the gas flow to be greater than 15L/min and oxygen flushing valve more than twice
(4) no obviously chest action
(5) has to perform doub
CT 
Sponsors
Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Anesthesiology
Eligibility
Sex/Gender
Male
Inclusion criteria
Inclusion criteria: 1. Aged ?18 years old; 2. ASAI to II; 3. Patients with oral and maxillofacial surgery; 4. Awake, without mental disease.;Inclusion criteria: 1. Aged ?18 years old; 2. ASAI to II; 3. Patients with oral and maxillofacial surgery; 4. Awake, without mental disease.;Inclusion criteria: 1. Aged ?18 years old; 2. ASAI to II; 3. Patients with oral and maxillofacial surgery; 4. Awake, without mental disease.;Inclusion criteria: 1. Aged ?18 years old; 2. ASAI to II; 3. Patients with oral and maxillofacial surgery; 4. Awake, without mental disease.;Inclusion criteria: 1. Aged ?18 years old; 2. ASAI to II; 3. Patients with oral and maxillofacial surgery; 4. Awake, without mental disease.
Exclusion criteria
Exclusion criteria: Subjects unwilling to participate the study.;Exclusion criteria: Subjects unwilling to participate the study.;Exclusion criteria: Subjects unwilling to participate the study.;Exclusion criteria: Subjects unwilling to participate the study.;Exclusion criteria: Subjects unwilling to participate the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| AHI;MsaO2;LsaO2; | — |
Secondary
| Measure | Time frame |
|---|---|
| Age;BMI;The history of OSAHS;neck circumference;thyromental distance;Neck activity;Mallampati score; | — |
Countries
China
Contacts
Public ContactHu Rong;Hu Rong;Hu Rong;Hu Rong;Hu Rong ;;;;
Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine;Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine;Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine;Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine;Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine
Outcome results
None listed