None listed
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Sign informed consent; 2. Aged >65 and <80 years; 3. ASA grade II~III; 4. Patients who plan to undergo endoscopic gastrointestinal surgery.
Exclusion criteria
Exclusion criteria: 1. Patients with contraindications to regional block technique (allergy to local anesthetic, infection around puncture site and coagulation disorder); 2. A history of dependence on painkillers; 3. Patients with dementia or cognitive dysfunction (positive on CAM scale, less than 24 points on MMSE scale); 4. Any cerebrovascular accident, such as stroke, transient ischemic attack (TIA), etc., occurred within 3 months; 5. Anyone who has trouble communicating.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence of postoperative delirium ; | — |
Secondary
| Measure | Time frame |
|---|---|
| Intraoperative MAP and local cerebral oxygen saturation (rSO2) values;Observation time of anesthesia recovery room (PACU) and postoperative hospital stay;During the operation, the amount of anesthetic drugs and vasoactive drugs and the amount of liquid in and out;Intraoperative hemodynamic fluctuations;Time of patient awakening, extubation and PACU entry and exit;Major complications after gastrointestinal surgery;Length of hospital stay;Mortality; | — |
Countries
China