Lung function
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age: 18-65 2. BMI: 18.5-30kg/m2 3. ASA Level: I-III 4. Selective general anesthesia for laparoscopic resection of colorectal cancer 5. Sign informed consent form
Exclusion criteria
Exclusion criteria: 1. Severe liver and kidney dysfunction, moderate to severe anemia (Hb<90g/L) 2. Preoperative severe respiratory dysfunction (PaO2<60mmHg), FEV1/FVC<50%, severe obstructive sleep apnea syndrome (OSAS) 3. Allergies or contraindications to drugs related to this study 4. Severe mental or hearing impairment, inability to communicate normally
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Arterial alveolar oxygen partial pressure ratio; | — |
Secondary
| Measure | Time frame |
|---|---|
| Intrapulmonary shunt;Oxygenation index;Alveolar arterial oxygen pressure difference;Dead space to tidal volume ratio;Postoperative incidence of pulmonary complications;Recovery Quality QoR-15 Rating; | — |
Countries
China
Contacts
The Affiliated Hospital of Xuzhou Medical University