Postoperative pulmonary complications
Conditions
Interventions
Hypoxia group:30% oxygen concentration
Hyperoxia group:80% oxygen concentration
Personality group:Adjusting oxygen concentration based on arterial partial pressure of oxygen
Sponsors
Department of Anesthesiology, Second Affiliated Hospital of Nanchang University
Eligibility
Sex/Gender
All
Age
65 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1. Elective laparoscopic gastrointestinal tumor surgery; 2. Aged 65-80 years; 3. The estimated operation time is more than 3 hours; 4. ASA I-II level; 5. BMI is normal; 6. In line with ethics, the patient voluntarily takes the test and signs the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Hemodynamic instability caused by heart disease; 2. Pulmonary insufficiency: SpO2 is less than 90% before operation, and the partial pressure of arterial blood oxygen is less than 80mm Hg; 3. Hypertension not controlled by drugs or poorly controlled by drugs; 4. Smoking within 1 week before surgery; 5. Respiratory tract infection; 6. Potential respiratory depression; 7. Those who expect a large amount of blood loss and need blood transfusion; 8. Second operation within 30 days; 9. Cachexia, severely malnourished patients.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence of pulmonary complications; | — |
Secondary
| Measure | Time frame |
|---|---|
| Postoperative hospital stay;Hospitalization expenses;ICU transfer rate;In hospital mortality;Surgical site infection rate; | — |
Countries
China
Contacts
Public ContactDu Xiaohong
the Second Affiliated Hospital of Nanchang University
Outcome results
None listed