gonarthrosis
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: ? Sign informed consent, male or female; ? Orthopaedic knee replacement under quasi-general anesthesia; ? 65 years old = age =85, ASA: Grade I ~ III; ? Endotracheal intubation or laryngeal mask placement can complete the operation; The estimated operation time is less than 180 minutes; ? The expected blood loss is less than 800ml.
Exclusion criteria
Exclusion criteria: ? Patients undergoing emergency operation within 12 hours after admission; ? Preoperative MMSE score =23 points; ? There are contraindications of percutaneous electrical stimulation, including stimulation of local skin damage or infected people, there are implanted electrophysiological devices in the body; ? Patients with severe respiratory and circulatory system disorders or mechanical ventilation before operation; ? Long-term use of sedatives, drug users; ? Those who do not cooperate, communication disorders or previous neurological diseases and mental abnormalities;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| mini-mental state examination; | — |
Secondary
| Measure | Time frame |
|---|---|
| Visual Analogue Scale;Postoperative nausea and vomiting;Tumor necrosis factor-a and interleukin-1ßlevels in blood;Postoperative cognitive function evaluation; | — |
Countries
China
Contacts
Department of Anesthesiology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital Chinese Medicine)