colorectal cancer
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Gender is not limited, aged 55-85 years; 2. BMI 18.5-23.9kg/m^2, ASA II-III; 3. The patient has no serious heart, lung, liver and kidney disease, and the preoperative consciousness is clear, and the operation time is more than 2 hours.
Exclusion criteria
Exclusion criteria: 1. Received mechanical ventilation 2 weeks before surgery; 2. Severe neuromuscular disease; 3. Combined with central nervous system diseases; 4. Patients should be transferred to ICU with tracheal tube after operation, Hb<70g/L.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Respiratory dynamics index; | — |
Secondary
| Measure | Time frame |
|---|---|
| Hemodynamic index; | — |
Countries
China
Contacts
Foshan Second People's Hospital