Postoperative pain
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. 18 = 70 years old; 2. ASA I-III; 3.Patients under general anesthesia; 4.Voluntarily to accept postoperative patient-controlled intravenous analgesia; 5.Voluntarily to participate the study.
Exclusion criteria
Exclusion criteria: 1. With chornic pain or receiving analgesic drugs long-term; 2. With damage or rash on skin of study loctation; 3. With temporary cardiac pacemaker; 4. Can not cooperate with the study because of any reason.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Postoperative pain score;Analgesic requirements;Mechanical pain sensitivity; | — |
Countries
China