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Effect of Percutaneous Auricular Vagus Nerve Stimulation on Postoperative Urinary Retention in Patients Undergoing Anorectal Surgery with Subarachnoid Block: A Prospective, Single-Center, Randomized, Double-Blind, Controlled Clinical Study

Effect of Percutaneous Auricular Vagus Nerve Stimulation on Postoperative Urinary Retention in Patients Undergoing Anorectal Surgery with Subarachnoid Block: A Prospective, Single-Center, Randomized, Double-Blind, Controlled Clinical Study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500113540
Enrollment
Unknown
Registered
2025-12-01
Start date
2025-12-01
Completion date
Unknown
Last updated
2025-12-08

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

Conditions

Postoperative urinary retention

Interventions

Fake stimulus group:fake Transcutaneous vagus nerve stimulation
Transcutaneous vagus nerve stimulation group:Transcutaneous vagus nerve stimulation

Sponsors

Huzhou Center Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Age 18-70 years, any gender; 2. American Society of Anesthesiologists (ASA) classification I or II; 3. Surgical procedures include stapled hemorrhoidopexy for prolapsed hemorrhoids, combined hemorrhoidectomy with external excision and internal ligation, anal fistula surgery, radical treatment of perianal abscess, and transanal rectocele repair.

Exclusion criteria

Exclusion criteria: 1. Patients with pre-existing urinary system diseases (benign prostatic hyperplasia, urinary stones, neurogenic bladder, urethral injury or stricture); 2. Those sensitive to electrical stimulation, or with skin infection or damage in the stimulation area; 3. Individuals with contraindications to subarachnoid block; 4. Patients with severe cardiovascular, cerebrovascular, liver, kidney, endocrine, or hematopoietic system diseases, psychiatric disorders, or intellectual disability who cannot cooperate; 5. Those allergic to local anesthetics or electrodes; 6. Women who are pregnant or breastfeeding.

Design outcomes

Primary

MeasureTime frame
Incidence of urinary retention during postoperative hospital stay;

Secondary

MeasureTime frame
First spontaneous urination time after surgery;First spontaneous urine output after surgery;Lower abdominal bloating score;First time getting out of bed after surgery;Postoperative pain;Postoperative catheterization;Anesthesia level decay time;Postoperative waiting time for first spontaneous urination;

Countries

China

Contacts

Public ContactHe Liu

Huzhou Center Hospital

lh121061@163.com+86 572 2555285

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026