postoperative complications
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients aged >=60 years, scheduled to undergo elective open surgery, estimated operation time of more than 2 hours, intraoperative general anesthesia mechanical ventilation, regardless of gender.
Exclusion criteria
Exclusion criteria: 1. There are contraindications to general anesthesia, body mass index > 40kg/m^2; 2. Patients with head, neck and chest deformity who cannot tolerate cardiopulmonary exercise test.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cardiopulmonary exercise capacity;Length of stay;ICU stay; | — |
Secondary
| Measure | Time frame |
|---|---|
| Postoperative complications; | — |
Countries
China
Contacts
Beijing Shijitan Hospital, Capital Medical University