Using TENS to Treat Overactive Bladder in Parkinson's Patients

Tibial nerve stimulation has been shown in the literature to be effective for individuals experiencing idiopathic overactive bladder in randomized controlled trials. A systematic review was performed by Schneider, M.P. et al. in 2015 looking at safety and efficacy of its use in neurogenic lower urinary tract dysfunction. Many variables were examined in this review, which included 16 studies after exclusion. The review looked at:

1. Acute stimulation (used during urodynamic assessment only)
2. Chronic stimulation (6-12 weeks of daily-weekly use)
3. Percutaneous or transcutaneous (frequencies, pulse widths, perception thresholds, durations)
4. Urodynamic parameter changes baseline to post treatment
5. Post void residual changes
6. Bladder diary variables
7. Patient adherence to tibial nerve stimulation
8. Any adverse events

The exact mechanism of these types of neuromodulation stimulation procedures remains unclear, however it does appear to play a role in neuroplastic reorganization of cortical networks via peripheral afferents. No specific literature is currently available for the mechanism on action related to neurogenic lower urinary tract dysfunction. Different applications of neuromodulation however have been studied in the neurogenic populations.

One of the randomized controlled trials they report on included 13 people with Parkinson disease. The researchers looked at a comparison between the use of transcutaneous tibial nerve stimulation (n = 8) and sham transcutaneous tibial nerve stimulation (n=5). Transcutaneous tibial nerve stimulation (TTNS) or sham stimulation was delivered to the people with Parkinson disease 2x/week for 5 weeks, 30-minute sessions (10 total sessions). Unilateral electrode placement was utilized, first electrode applied below the left medial malleolus and second electrode 5 cm cephalad. Confirmation of placement was obtained with left great toe plantar flexion. It is important to note the use of the stimulation intensity is reduced to below the motor threshold during the active treatment to direct the stimulation via peripheral afferents.

Urodynamic testing was performed at baseline and post treatment and revealed statistically significant differences with greater volumes at strong desire and urgency in the TTNS group. Additionally, the TTNS group experienced a 50% reduction in nocturia whereas in the sham group nocturia frequency remained the same. A three-day bladder diary completed by each of the groups also revealed significant positive changes in frequency, urgency, urge urinary incontinence and hesitancy only in the TTNS group.

Conservative management of neurogenic bladder in populations such as Parkinson disease is very important. These individuals experience lower quality of life ratings related to lower urinary tract dysfunction, higher risk of falling with needs to rush to the bathroom, their caregivers experience a higher level stress and burden of care, and tolerance to anticholinergic medications is very poor with multiple unwanted side effects that compound and worsen other symptoms that might be present from the disease process.

Please join us for Neurologic Conditions and Pelvic Floor Rehab to learn how you can help your patients using this modality as one option. Participate in a lab session to learn electrode placement and other parameters to achieve best clinical results for your patients.

1. Perissinotto, M. C., D'Ancona, C. A. L., Lucio, A., Campos, R. M., & Abreu, A. (2015). Transcutaneous tibial nerve stimulation in the treatment of lower urinary tract symptoms and its impact on health-related quality of life in patients with Parkinson disease: a randomized controlled trial. Journal of Wound Ostomy & Continence Nursing, 42(1), 94-99.
2. Schneider, M. P., Gross, T., Bachmann, L. M., Blok, B. F., Castro-Diaz, D., Del Popolo, G., ... & Kessler, T. M. (2015). Tibial nerve stimulation for treating neurogenic lower urinary tract dysfunction: a systematic review. European urology, 68(5), 859-867.