Effect of Pulse Rate Changes on Clinical Outcome
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Purpose
Objectives: To evaluate the effect of pulse rate changes on the clinical response and stimulation related pain symptoms in sacral neuromodulation (SNM) treatment.
Materials and Methods: This pilot study evaluated the effect of 4 different pulse rates (5.2Hz-10Hz-21Hz-40Hz) in patients with suboptimal response to SNM. The effect of each frequency was evaluated over test period of 6 days. To avoid carry over effect, stimulation was kept off for 24 hours between consecutive test periods. The last 3 days of every test period, a voiding diary (VD) and questionnaire was filled in. The changes on clinical response and pain symptoms were compared between the four pulse-rates using multivariate analysis.
Results: Fifty patients were included of which 40 (80%) were female. Mean age was 55.5yr (SD 12.3). Forty-one patients (82%) had overactive bladder symptoms and 9 (18%) had chronic non-obstructive urinary retention. No significant difference was found regarding clinical outcome (VD and questionnaire) between the different pulse rates. Furthermore, none of the four pulse rates was significantly related to the occurrence of SNM-related pain. However, on individual basis, patients appear to benefit from changing the pulse rate concerning both treatment efficacy and stimulation related pain.
Conclusions: On group level, none of the four pulse rates in this study appears to have a significantly different effect on clinical outcome or SNM-related pain. However, a tailor-made approach for optimizing treatment efficacy by changing the pulse rate might be useful.
| Condition | Intervention |
|---|---|
|
Overactive Bladder Syndrome Chronic Urinary Retention |
Other: Pulse Rate Change |
| Study Type: | Interventional |
| Study Design: | Intervention Model: Single Group Assignment Primary Purpose: Treatment |
| Official Title: | The Effect of Pulse Rate Changes on Clinical Outcome in Sacral Neuromodulation |
- Improvement in voiding diary variables
- Improvement in subjective voiding symptoms
| Enrollment: | 50 |
| Study Start Date: | July 2008 |
| Study Completion Date: | January 2010 |
| Primary Completion Date: | December 2009 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Experimental: Pulse Rate Change
Patients are subjected to different pulse rate settings of their neurostimulator. The effect of pulse rate changes on clinical outcome is measured.
|
Other: Pulse Rate Change
Different pulse rate settings of the implantable neurostimulator
|
Eligibility| Ages Eligible for Study: | 18 Years to 80 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Patients who have been implanted with a neurostimulator for overactive bladder symptoms or urinary retention
- Patients with suboptimal effect of their neurostimulator
Exclusion Criteria:
- Patients with 100% effect of their neurostimulator
Contacts and Locations| Netherlands | |
| Maastricht University Medical Centre | |
| Maastricht, Limburg, Netherlands, P.O. box 5800, 6202 AZ | |
| Principal Investigator: | Philip van Kerrebroeck, M.D., Ph.D. | Maastricht University Medical Centre |
More Information
No publications provided
| Responsible Party: | Philip van Kerrebroeck, Maastricht University Medical Center |
| ClinicalTrials.gov Identifier: | NCT01164280 History of Changes |
| Other Study ID Numbers: | MEC 07-2-083 (5266) |
| Study First Received: | July 14, 2010 |
| Last Updated: | July 15, 2010 |
| Health Authority: | the Netherlands: Voedsel en Waren Autoriteit |
Additional relevant MeSH terms:
|
Urinary Retention Urinary Bladder, Overactive Urination Disorders Urologic Diseases |
Urinary Bladder Diseases Urological Manifestations Signs and Symptoms |
ClinicalTrials.gov processed this record on May 16, 2013