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Do Prostheses of SphinkeeperTM Migrate After Operation?

Do Prostheses of SphinkeeperTM Migrate After Operation? - a Prospective Pilot Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04992429
Enrollment
32
Registered
2021-08-05
Start date
2020-06-01
Completion date
2021-06-18
Last updated
2023-01-18

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

Conditions

Fecal Incontinence

Brief summary

32 patients who underwent sphinkeeper operation got enrolled in this study. The primary endoint is to explore the movement of the prostheses examined by manometry and ultrasound. The secondary endpoint is to find out about the functional outcome when migration of prostheses occurs and to examine differences in morphology of the sphincters after operation.

Detailed description

The SphinkeeperTM is a new surgical procedure in order to treat refractory fecal incontinence, which includes up to ten self-expandable prostheses. These get implanted into the intersphincteric space and due to constriction of the anal canal and better contractibility continence should be improved. Because this is a new technique, there is only limited data about its clinical efficacy. In this study, patients, aged 18-90 years, who met the inclusion criteria and have received a SphinkeeperTM operation, were enrolled. Functional outcomes and quality of life got measured by standard questionnaires before surgery and 1, 2, 3 and 6 months after surgery. Furthermore, in routine check ups patients received endoanal anorectal manometry for pressure measurement and endoanal ultrasound to determine the position of the prostheses.

Interventions

PROCEDURESphinkeeperTM

The SphinkeeperTM includes up to 10 self-expandable prostheses, which get inserted into the intersphincteric place. They are made of inert Hyexpan (polyacrylonitrile)

Sponsors

Medical University of Vienna
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* Age 18 - 90 years, undergoing sphinkeeper operation at the Department of General Surgery, Medical University of Vienna * Ability and willingness to understand and comply with study interventions and restrictions. * Voluntarily signed informed consent after full explanation of the study to the participant

Exclusion criteria

* Any physical or mental disorder, which could interfere with the participant's safety during the clinical trial or with the study objectives * Inability to communicate well with the investigator due to language problems or reduced mental development * Inability or unwillingness to give written informed consent

Design outcomes

Primary

MeasureTime frameDescription
Migration of prostheses6 monthsThe migration got analysed by using endoanal ultrasound one, two, three and six months after surgery. The prostheses will be categorized by their position in relation to the anal canal axis.

Secondary

MeasureTime frameDescription
Influence of migration of the prostheses in functionality6 monthsEpisodes of fecal incontinence and bowel habits were assessed using the Vaizey incontinence score (range 0-22, higher number means severe incontinence). It gets explored if there is a relation between migration of prostheses and worsening of incontinence.
Psychological and physical well-being6 monthsThe psychological and physical well-being before and after operation was assessed using the SF-12 standardized questionnaire. (range 0-100; higher scores= Better quality of life)
Morphology of the anal sphincter after operation6 monthsDifferences of the morphology before and after the operation got examined by endoanal ultrasound.

Countries

Austria

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026