Atelectasis
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Adult patients were aged 18 years or older, scheduled for brain surgery; 2. American Society of Anesthesiologists (ASA) physical status class I–III; 3. They could climb two flights of stairs without stopping, were considered clinically lung healthy; 4. Had an SpO2 of >= 94% when breathing air; 5. Body mass index (BMI, weight in kilograms divided by the square of the height in meters) of < 35 kg/m2; 6. The operative position is supine.
Exclusion criteria
Exclusion criteria: 1. Patients with chronic obstructive pulmonary disease, overt heart failure, obstructive sleep apnoea syndrome; 2. Patients with a difficult intubation or difficult mask ventilation was anticipated; 3. Chemotherapy within 3 months, and surgery within 30 days (except surgery under local anesthesia or dilation and curettage under general anesthesia); 4. Inability to give informed consent.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| atelectasis; | — |
Secondary
| Measure | Time frame |
|---|---|
| aeration;PPCs;EVA; | — |
Countries
China
Contacts
Department of Anesthesiology, Huadong Hospital