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A Prospective Randomized Controlled Study on the Anesthetic Efficacy of Nalbuphine Combined with Ropivacaine in Ultrasound-Guided Caudal Block for Perianal Surgery

A Prospective Randomized Controlled Study on the Anesthetic Efficacy of Nalbuphine Combined with Ropivacaine in Ultrasound-Guided Caudal Block for Perianal Surgery

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600121374
Enrollment
Unknown
Registered
2026-03-30
Start date
2026-04-08
Completion date
Unknown
Last updated
2026-04-14

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

Conditions

Sacrospinal anesthesia for perianal surgery

Interventions

Experimental group:In the experimental group (Group A), 1 ml of nalbuphine at 10 mg/ml was combined with 15 ml of 0.375% ropivacaine.
Control group:In the control group (Group B), 1 ml of normal saline was combined with 15 ml of 0.375% ropivacaine.

Sponsors

Yongkang First People's Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Age range: 18–65 years old, regardless of gender; 2. ASA classification: Grades I–II; 3. Surgery duration <= 3 hours; 4. Underlying diseases are well-controlled, with no allergy to anesthetics; 5. Informed consent form signed; 6. Procedures involving anorectal surgery (mainly external dissection and internal ligation for hemorrhoids, anal fistulectomy, and incision and drainage of perianal abscesses)

Exclusion criteria

Exclusion criteria: 1. Infection at the puncture site; 2. Blood disorders; 3. Malignant tumors; 4. Mental abnormalities preventing normal communication; 5. Disorders of the central or peripheral nervous system; 6. Co-existing conditions at other surgical sites; 7. Long-term use of analgesics; 8. Need for a second surgery within 48 hours after the initial operation

Design outcomes

Primary

MeasureTime frame
Resting VAS pain scores at different time points after surgery (3h, 6h, 12h, 24h post-surgery);

Secondary

MeasureTime frame
Onset time of sensory block;Intraoperative hemodynamic changes;Motion VAS pain score at the same time point;Proportion of patients who first requested analgesic relief and those who required emergency analgesics;Incidence of adverse reactions;VAS score for the first independent walk after surgery and proportion of patients who were able to walk with a VAS pain score = 4;

Countries

China

Contacts

Public ContactZhu Luyao

Yongkang First People's Hospital

1419630492@qq.com+86 183 5897 3998

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Apr 17, 2026