NCT06049524

Brief Summary

The aim of this single-center prospective observational trial is to study the influence of physical and psychological factors on the intensity of pain syndrome after anorectal interventions and to determine the association between the physiological pain threshold before surgery and the level of pain syndrome after anorectal surgery. Participants undergoing surgical treatment for anorectal diseases will be asked to complete the questionnaires before and after surgery, all information will be collected to identify risk factors for severe pain syndrome after surgery. The pain threshold test will be conducted to determine the association with pain after surgery.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
200

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2024

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 29, 2023

Completed
5 months until next milestone

First Posted

Study publicly available on registry

September 22, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

January 8, 2024

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2024

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2024

Completed
Last Updated

October 6, 2023

Status Verified

October 1, 2023

Enrollment Period

6 months

First QC Date

April 29, 2023

Last Update Submit

October 5, 2023

Conditions

Keywords

postoperative analgesiapreoperative assessmentanorectal surgerypain thresholdpostoperative pain predictor

Outcome Measures

Primary Outcomes (1)

  • Correlation between the preoperative pain threshold level and the intensity of the postoperative pain syndrome

    The pain threshold is the point at which a subject begins to experience pain from an outward stimulus. The individual physiological level of pain threshold is assessed before surgery with a test determining the threshold for pressure pain. The intensity of the postoperative pain syndrome is assessed according to VAS scale during 15 days after surgery.

    Day 15 after surgery

Secondary Outcomes (10)

  • The relationship between the physical factors and the intensity of the postoperative pain syndrome

    Day 15 after surgery

  • The relationship between the preoperative clinical factors and the intensity of the postoperative pain syndrome

    Day 15 after surgery

  • The relationship between the perioperative clinical factors and the intensity of the postoperative pain syndrome

    Day 15 after surgery

  • The correlation between the severity of pain syndrome and psychological factors before surgery

    Before surgery

  • The correlation between the severity of pain syndrome and psychological factors after surgery.

    Day 7 after surgery

  • +5 more secondary outcomes

Study Arms (1)

Experimental group

Prior to surgery all included patients are asked to fill out questionnaires in written or electronic form to collect the information. Then the participating doctor conducts a test to determine the pain threshold for pressure pain. Further the scheduled surgical intervention is performed under spinal anesthesia.Intraoperative data are also entered to the database. After surgery the researcher provides the patient with a written or electronic form of a postoperative monitoring questionnaire. In the postoperative period, patients undergo analgesia according to the standard scheme. In case of ineffectiveness of the standard anesthesia regimen 100 mg of tramadol is administered to the patient. All patients are remotely monitored 30 days after surgery to collect postoperative data, and if there are any remaining symptoms or complaints, they are invited to the clinic for examination.

Eligibility Criteria

Age18 Years+
Sexall(Gender-based eligibility)
Gender Eligibility DetailsOur clinic specializes only in the adult population
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients over 18 years of age, who have been diagnosed with one of the benign anorectal diseases (hemorrhoidal disease of stage 2-4, anal fissure that does not respond to conservative treatment, rectal and rectovaginal fistulas, post-traumatic other types of the anal incontinence) and are intended for surgical treatment (open/closed hemorrhoidectomy with or without Ligasure, excision of the anal fissure, excision of the rectal or rectovaginal fistula with or without segmental proctoplasty, sphincterolevatoroplasty or other options for anal sphincter reconstruction) are potential participants in the study.

You may qualify if:

  • Patients over 18 years old
  • Diagnosed benign anorectal disease requiring surgical treatment: hemorrhoidal disease of stage 2-4, anal fissure that does not respond to conservative treatment, rectal and rectovaginal fistulas with or without drainage ligature, post-traumatic failure of the anal sphincter, as well as other types of failure of the anal sphincter.
  • One of the planned interventions: open/closed hemorrhoidectomy with or without Ligasure, excision of the anal fissure, excision of the rectum or rectovaginal fistula of the rectum with or without segmental proctoplasty, sphincterolevatoroplasty or other options for reconstruction of the anal sphincter.
  • Indications for planned surgical treatment
  • Absence of other diseases that cause pain syndrome.
  • I, II class of anesthetic risk according to ASA classification
  • Voluntary signing by the participant of an informed consent for surgical treatment and participation in a clinical trial.

You may not qualify if:

  • The chronic pain syndrome unrelated to the main proctological disease, exacerbation of concomitant diseases with pain syndrome
  • Chronic or prolonged use of medications, including narcotic drugs, with analgesic effect for other diseases.
  • Patients who have contraindications or technical impossibility of performing subarachnoid anesthesia or the full standard volume of surgery for the corresponding disease.
  • The presence of previously diagnosed mental and neurological disorders.
  • Patients who refused to participate at any time before the end of the study, as well as patients who did not pass the final postoperative monitoring (1 month after the intervention).
  • Pregnant women
  • Complicated course of the postoperative period

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

the surgical department of the Medical Research and Educational Center of Lomonosov Moscow State University (MREC MSU)

Moscow, 119991, Russia

Location

MeSH Terms

Conditions

HemorrhoidsRectal FistulaFissure in AnoSomatoform DisordersPain, Postoperative

Condition Hierarchy (Ancestors)

Rectal DiseasesIntestinal DiseasesGastrointestinal DiseasesDigestive System DiseasesVascular DiseasesCardiovascular DiseasesIntestinal FistulaDigestive System FistulaFistulaPathological Conditions, AnatomicalPathological Conditions, Signs and SymptomsAnus DiseasesMental DisordersPostoperative ComplicationsPathologic ProcessesPainNeurologic ManifestationsSigns and Symptoms

Central Study Contacts

Tatiana Garmanova, PhD

CONTACT

Ekaterina Kazachenko

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
1 Month
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 29, 2023

First Posted

September 22, 2023

Study Start

January 8, 2024

Primary Completion

July 1, 2024

Study Completion

December 30, 2024

Last Updated

October 6, 2023

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will not share

Locations