perianal diseases
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Patients undergoing elective perianal surgery; 2. The preoperative ASA classification is I-III; 3. Patients aged 18 to 65 years; 4. Patients who agree to participate in the research and need to use an analgesic pump after surgery.
Exclusion criteria
Exclusion criteria: 1. Participated in other clinical trials within 3 months before enrollment; 2. Patients who are allergic to local anesthetics; 3. Complicated with serious organ dysfunction such as heart and brain; 4. Patients with a history of chronic pain and long-term use of analgesics before surgery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Time of first feeling pain after surgery(VAS>3); | — |
Secondary
| Measure | Time frame |
|---|---|
| The VAS score after operation within 2h,4h,6h,12h,24h,48h,72h;The times of pressing analgesia pump within 72 hours;Evaluation of the quality of postoperative recovery;Incidence of adverse reactions;Needle display score;Operation time of nerve block;Number of punctures;Distance between puncture point and midline of buttock;Angle between blocking needle and skin;Depth of puncture; | — |
Countries
China
Contacts
Chengdu Shangjin Nanfu Hospital, Chengdu High-Tech West District, Chengdu, Sichuan, China