Perianal diseases
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged 18-65 years; 2. ASA grade I~III; 3. Informed consent was signed by all patients participating in the experiment.
Exclusion criteria
Exclusion criteria: 1. Taking other experimental drugs or participating in other clinical trials within 3 months before the study was selected; 2. Anesthesia and analgesia methods used in the experiment were contraindicated; 3. Patients with coagulation dysfunction or taking anticoagulants; 4. Patients with language or communication disorders; 5. No reason can cooperate with the research or the researcher considers it inappropriate to be included in this experiment; 6. Refusal to participate in the study; 7. Pregnancy and lactation; 8. Previous neurological or distinct spinal disorders; 9. Local sacrococcygeal infection; 10. History of sacrococcygeal trauma and surgery; 11. Complications with severe systemic diseases.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence of painless anal passage through two transverse fingers at the beginning of surgery; | — |
Countries
China
Contacts
West China Hospital, Sichuan University