pulmonary atelectasis
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1: Patients undergoing laparoscopic colorectal cancer surgery 2: 65-75 years old 3: American Society of Anesthesiologists (ASA) Grade II or III 4: No neuromuscular disease 5: Body mass index (BMI) <30kg/m2
Exclusion criteria
Exclusion criteria: 1: Preoperative respiratory tract infection, cough, sputum and other symptoms 2: Preoperative examination indicated atelectasis, bulla, severe chronic obstructive pulmonary disease, and a history of pulmonary surgery 3: History of severe arrhythmia, coronary heart disease, and cardiac surgery
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pulmonary ultrasonic fraction;PO2;PCO2;SPO2; | — |
Secondary
| Measure | Time frame |
|---|---|
| Severity of atelectasis;Incidence of atelectasis; | — |
Countries
China
Contacts
The Seventh Affiliated Hospital of Southern Medical University