Malignant tumor
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Participants must meet all of the following criteria: 1. Aged >= 65 years and < 90 years; 2. Scheduled to undergo surgery for cancer, with an expected duration of 2 hours or more, under general anesthesia; 3. Diagnosed as primary cancer, do not receive radio- or chemotherapy before surgery; 4. Agree to participate, and give signed written informed consents.
Exclusion criteria
Exclusion criteria: Patients will be excluded if they meet any of the following criteria: 1. Refuse to participate in the study; 2. Previous history of schizophrenia, epilepsy, Parkinsonism, or myasthenia gravis; 3. Inability to communicate in the preoperative period because of coma, profound dementia, language barrier, or end-stage disease; 4. Critical illness (preoperative American Society of Anesthesiologists physical status classification >= IV), severe hepatic dysfunction (Child-Pugh class C), or severe renal dysfunction (undergoing dialysis before surgery); 5. Neurosurgery; 6. Other reasons that are considered unsuitable for study participation by the responsible surgeons or investigators (reasons must be recorded in the case report form).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The incidence of delirium during the first 7 days after surgery;Duration of overall survival after surgery; | — |
Secondary
| Measure | Time frame |
|---|---|
| Incidence of postoperative complications within 30 days after surgery;Recurrence-free survival after surgery;Cognitive function at 30 days after surgery;Event-free survival after surgery;The percentage of intensive care unit (ICU) admission after surgery;The proportion of ICU admission with endotracheal intubation after surgery;The length of stay in ICU after surgery;The length of stay in hospital after surgery; | — |
Countries
China
Contacts
Peking University First Hospital