Coronary artery disease,CAD
Conditions
Interventions
HFNC Group:Pre-oxygen inhalation period: During the pre-oxygen inhalation stage, the HFNC is set at 100% of FIO, the oxygen flow rate is 40L/min, and the temperature is 33?. Pre-oxygen inhalation last
Control Group:Pre-oxygen inhalation period: The mask is in close contact
Sponsors
Beijing Anzhen Hospital,Capital Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1.Diagnosis of coronary artery disease, coronary angiography showing single or multiple vessel lesions; 2.Age > 18 years; 3.American Society of Anesthesiologists (ASA) physical status classification II to IV; 4.Elective coronary artery bypass grafting (CABG) surgery.
Exclusion criteria
Exclusion criteria: 1.The patient or their family refuses to participate in the study; 2.Incomplete clinical data; 3.BMI = 30 kg/m²; 4.Poor airway protection ability, high risk of aspiration; 5.Hemodynamic instability; 6.Increased intracranial pressure, skull base defects, chronic obstructive pulmonary disease (COPD), or pulmonary hypertension; 7.Requires awake intubation or rapid sequence intubation; 8.Significant CO2 retention; 9.Unable to perform laryngoscopy (bronchoscope intubation, mouth opening < 2 cm) [2]; 10.Skull fractures or craniofacial deformities, inability to pass oxygen through the nostrils; 11.Impaired consciousness and inability to cooperate.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| PaO2 after preoxygenation; | — |
Countries
China
Contacts
Public ContactSheng Wang
Beijing Anzhen Hospital,Capital Medical University
Outcome results
None listed