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Effect of pudendal nerve block with ropivacaine combined with dexamethasone on postoperative analgesia after general anesthesia for perianal surgery: a single-center randomized controlled clinical trial

Effects of PCIA combined ultrasound-guided pudendal nerve block with ropivacaine and dexamethasone on analgesia after perianal surgery: a single-center randomized controlled clinical trial

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2100048760
Enrollment
Unknown
Registered
2021-07-16
Start date
2022-03-21
Completion date
Unknown
Last updated
2022-04-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Perianal diseases

Interventions

Group R:Pudendal nerve block with ropivacaine
Group RD:Pudendal nerve block with ropivacaine and dexamethasone

Sponsors

Chengdu Shangjin Nanfu Hospital-West China Shangjin Branch Department of Anesthesiology
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

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. Patients with a history of chronic pain and long-term use of analgesics before surgery; 4. Patients who cannot complete the trial and follow-up due to various reasons; 5. Patients who need to terminate the operation or change the operation method due to the condition of the operation; 6. Other unexpected complications occur; 7. Patients with local anesthetic poisoning during the perioperative period.

Design outcomes

Primary

MeasureTime frame
Incidence of moderate to severe pain at the first dressing change after surgery;

Secondary

MeasureTime frame
The VAS score of each time point within 72 hours after operation;VAS score at first defecation;QoR -15 scale;Sleep quality score;Incidence of adverse reactions;The times of pressing analgesia pump within 72 hours;Use of postoperative analgesics;

Countries

China

Contacts

Public ContactWang Rurong

West China Hospital, Sichuan University

wangrurong@scu.edu.cn+86 18980601563

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 6, 2026