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CompletedNCT06502184MentODSSurgUpdated Aug 4, 2026

Mental Health Outcome After Surgery for Obstructed Defecation Syndrome (ODS)

An observational study in Surgery, Obstructive Defecation Syndrome and Mental Health Issue, sponsored by Evangelisches Klinikum Köln Weyertal gGmbH. Completed at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-04.

Sponsored by Evangelisches Klinikum Köln Weyertal gGmbH · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
140
Ages
18 Years and older
Sex
All
01

Study summary

Background: Obstructed Defecation Synsdrome (ODS) causes people to strain and sometimes need help to go to the toilet. They think about going to the toilet a lot, which makes their lives worse. People with Obstructed Defecation Synsdrome (ODS) are more likely to be anxious and depressed than people with other illnesses.

Aim of the study: This study looked at how mental health affects Obstructed Defecation Synsdrome (ODS) patients before and after surgery.

Read the detailed description

Aim, design, and setting of the study:

This study measures the mental burden of Obstructed Defecation Synsdrome (ODS) in patients scheduled for surgery for Obstructed Defecation Synsdrome (ODS) before and 6 months after surgery. The results are linked to how well the bowel works. All scores are checked before surgery and at 6 months after.

What do the investigators do to find this out ? The investigators look at patients' age, sex, body mass index (BMI), and other health problems. Defecation symptoms are measured using a validated questionnaire, the Altomare score, which has a maximum of 30 points. The rectal toxicity score reflects abdominal and bowel discomfort, which is determined by questions related to bowel dysfunction symptoms, such as diarrhea, meteorism, bleeding, and abdominal pain during bowel movement and defecation, and has a maximum of 32 points. The Wexner score is a 20-point questionnaire for fecal incontinence symptoms. Higher scores indicate greater severity of symptoms. Mental disorders are evaluated using the Personal Health Questionnaire 9 (PHQ-9) and General Anxiety Disorder 7 (GAD-7). Higher scores mean more severe symptoms.

Surgical procedure: For laparoscopic surgery under general anaesthesia, the patient is kept in a dorsal lithotomy position with their head down. The procedure opens the rectum, removes a part of the bowel and then rebuilds bowel continuity.

The investigators collect data on how long the operation took, how long the patient stays in hospital, and how many people have complications after the operation.

The scores will be reassessed at 6 months after surgery. For the clinical outcome, an improvement will be assumed at a reduction of 3 points and a strong improvement at a reduction of 6 points. Similarly, deterioration and major deterioration will be assumed at an increase of 3 points and 6 points. The results will be analyzed statistically.

02

Conditions studied

  • Surgery
  • Obstructive Defecation Syndrome
  • Mental Health Issue
  • Depression/Anxiety
  • Outcomes

Keywords

  • mental health
  • depression
  • anxiety
  • obstructed defecation syndrome
  • surgery
  • bowel resection
  • rectopexy
  • outcome
  • follow up
03

In context

Depression

8,057 studies on the registry are indexed under Depression; 1,641 are open to participants now.

This study's enrollment of 140 is below the median of 160 across 1,084 observational studies indexed under Depression.

Browse Depression studies →

Lead sponsor

Evangelisches Klinikum Köln Weyertal gGmbH is the lead sponsor of 5 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

The clinical and mental burdens of a consecutive group of patients, who is scheduled for surgery of Obstructed Defecation Syndrome (ODS) at the Evangelisches Klinikum Köln Weyertal, an academic teaching hospital associated with the university hospital cologne, which accommodates a tertiary pelvic organ and bowel dysfunction center as part of the surgical department, will be assessed before and 6 months after surgery.

The self-reported clinical (bowel function) and mental score data are prospectively acquired as part of the standard operating procedure for all patients with functional bowel motility disorders in the investigators' hospital. Informed consent for the planned procedure, data collection, and publication of the results was obtained from all patients before surgery.

Inclusion criteria

  • Obstructed Defecation Syndrome (ODS) scheduled for Surgery
  • Conservative treatment failure
  • Laparoscopic access possible

Exclusion criteria

Exclusion Criteria:

  • Pregnancy
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
140 participants (actual)
Patient registry
No

Groups and cohorts

  • cohort of all patients who receive ODS surgery

    laparoscopic resection rectopexy is performed

06

What researchers measure

Primary outcomes

  1. Mental Health Outcome - Depression

    Depression in patients with Obstructed Defecation Syndrome (ODS) is measured with a questionnaire (score) before and after Surgery. The Personal Health Questionnaire 9 (PHQ-9) as an established score for depressive symptoms is used. It has a maximum of 27 points and higher scores mean a worse outcome. The score is divided into five subgroups of depression severity, namely, nonminimal (0-4 points), mild (5-9 points), moderate (10-14 points), moderately severe (15-19 points), and severe (20-27 points).

    Time frame: 6 months

  2. Mental Health Outcome - Anxiety

    Anxiety in patients with Obstructed Defecation Syndrome (ODS) is measured with a questionnaire (score) before and after Surgery, as well, since this is another important outcome measure for mental health. Anxiety symptoms are measured by the General Anxiety Disorder 7 questionnaire (GAD-7), which has a maximum of 21 Points. Higher scores represent a higher burden and a worse outcome. GAD-7 is devided into four subgroups that differentiate the severity of anxiety into minimal (0-4 points), mild (5-9 points), moderate (10-14 points), and severe levels (15-21 points).

    Time frame: 6 months

Secondary outcomes

  1. Bowel Function - Altomare Score

    Bowel function scores after Surgery for Obstructed Defecation Syndrome (ODS) before an after 6 months from surgery. Defecation symptoms were measured using the Altomare score, a validated ODS questionnaire with a maximum of 30 points. In the questionnaire higher scores indicate greater severity of symptoms. However, no validated cutoff levels exist for scoring.

    Time frame: 6 months

  2. Bowel Function - rectal toxicity score

    Bowel function scores after Surgery for Obstructed Defecation Syndrome (ODS) before an after 6 months from surgery. The rectal toxicity score reflects abdominal and bowel discomfort, which is determined by questions related to bowel dysfunction symptoms, such as diarrhea, meteorism, bleeding, and abdominal pain during bowel movement and defecation, and has a maximum of 32 points. As for the Altomare score, for the rectal toxicity higher score values indicate greater severity of symptoms. However, no validated cutoff levels exist .

    Time frame: 6 months

  3. Bowel Function - Wexner incontinence score

    The Wexner incontinence score is an established questionnaire for fecal incontinence symptoms, with a maximum of 20 points. It is measured before surgery and after 6 months follow up, as well. As for the other questionnaires, higher scores indicate greater severity of symptoms. However, no validated cutoff levels exist.

    Time frame: 6 months

Other outcomes

  1. Surgical Outcome

    Morbiditiy and Mortality as measured by the Clavien Dindo Classification (CDC). The CDC distinguishes postoperative morbidity and mortality based on severity, which ranges from mild complications (CDC 1) and complications requiring medication (CDC 2) to complications requiring intervention in local anesthesia (CDC 3a) or narcosis (3b), septic complications (CDC 4a) combined with multiorgan failure (4b), and death (CDC 5). CDCs 1-3a are classified as minor complications, and CDCs 3b-4b are classified as major complications.

    Time frame: 6 months

07

Study locations

1 site
  • Evanglisches Klinikum Koeln Weyertal
    Cologne, 50931, Germany
08

References and documents

Publications

  • Rudroff C, Madukkakuzhy J, Hernandez AV, Otten J, Ulrici C, Karapanos L, Ludwig S. Early safety and efficiency outcomes of a novel interdisciplinary laparoscopic resection rectopexy combined with sacrocolpopexy for women with obstructive defecation syndrome and pelvic organ prolapse: a single center study. BMC Surg. 2024 Jun 14;24(1):185. doi: 10.1186/s12893-024-02474-4. PubMed 38877450 ↗
  • Rudroff C, Madukkakuzhy J, Otten J, Schroer J, Richards D, Ludwig S, Henning M. Improvement in functional and mental outcomes after resection rectopexy for obstructive defecation syndrome ODS. Sci Rep. 2025 Aug 18;15(1):30184. doi: 10.1038/s41598-025-15037-1. PubMed 40825813 ↗

Individual participant data

Plan to share: No — Patients are not willing to share the data

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 4, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06502184
Lead sponsor
Evangelisches Klinikum Köln Weyertal gGmbH
Collaborators
University Hospital of Cologne
Responsible party
Claudia Rudroff (Head of the department of visceral surgery and functional surgery of the lower gastrointestinal tract, Evangelisches Klinikum Köln Weyertal gGmbH) — Principal investigator
First posted
Jul 16, 2024
Start date
Feb 1, 2020
Primary completion
Mar 31, 2023
Completion
Apr 30, 2023
Last update
Aug 4, 2026

Study contacts

Claudia L Rudroff, MD
principal investigator · Evangelisches Klinikum Köln Weyertal

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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