Urinary Retention Clinical Trial
Official title:
Previously Implanted Pudendal Nerve Stimulation
Verified date | May 2024 |
Source | University of Michigan |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This study seeks to examine the response of the bladder to different pudendal nerve stimulation frequencies, by studying patients who have been previously-implanted with pudendal nerve neurostimulators.
Status | Completed |
Enrollment | 5 |
Est. completion date | May 2, 2023 |
Est. primary completion date | May 2, 2023 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Previously received an implanted neurostimulator at the pudendal nerve - Adult (18 or older), capable of providing own informed consent and communicating clearly with the research team - Capable of speaking, reading, and understanding English, as all study questionnaires are standardized assessments only available in English. - Capable of attending the experimental session Exclusion Criteria: - Pregnant or planning to become pregnant during study. If a woman of child- bearing potential wishes to participate in this study, they will be pre-screened with a test to detect pregnancy - Currently has a urinary tract infection (UTI) - Currently has or tested positive in the last 14 days for COVID-19, or is symptomatic for COVID-19 - Unwilling to allow de-identified data to be stored for future use or shared with other researchers |
Country | Name | City | State |
---|---|---|---|
United States | University of Michigan | Ann Arbor | Michigan |
Lead Sponsor | Collaborator |
---|---|
University of Michigan | National Institutes of Health (NIH) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Evoked Bladder Contractions of at Least 20 Centimeters of Water (cmH2O) During Cystometrogram | The results reflects the number of participants who experienced an evoked bladder contraction of at least 20 centimeters of water during stimulation of the pudendal nerve. Bladder contractions were evoked by applying nerve stimulation to the pudendal nerve through testing of the participant's implanted stimulator. | Visit 1, approximately 1 week after consent | |
Secondary | Selective Stimulation of Pudendal Nerve Branches | Selective stimulation of pudendal nerve branches for external urethral sphincter closure determined by comparing sensor recordings from distal pudendal nerve branches.
The intention was to measure the effect of selective PNS, configured for selective external urethral sphincter stimulation on ULPP, but this selective stimulation for this nerve bundle, as described in the protocol, proved to not be feasible within the experimental sessions. Thus, no data was gathered. |
2 hours | |
Secondary | Measurement of Effect of Selective Pudendal Nerve Stimulation (PNS) on Urethral Leak Point Pressure (ULPP) | Measurement of effect of selective PNS on ULPP using PNS configured for external urethral sphincter selectivity.
The intention was to measure the effect of selective PNS, configured for selective external urethral sphincter stimulation on ULPP, but this selective stimulation for this nerve bundle, as described in the protocol, proved to not be feasible within the experimental sessions. Thus, no data was gathered. |
2 hours |
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