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TTNS plus behavior therapy reduces urgency and nocturia in older women with OABSmall study finds nerve stimulation plus therapy may help older women with overactive bladder

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Key Takeaway
Consider TTNS with BT for OAB symptom reduction in older women, but evidence is from a small, short-term trial.

A randomized controlled trial enrolled 38 older women with Overactive Bladder Syndrome (OAB) to compare behavior therapy (BT) alone versus BT combined with transcutaneous tibial nerve stimulation (TTNS). Assessments using the ICIQ-OAB questionnaire and a 3-day voiding diary were conducted at the beginning and end of treatment.

Both treatment groups showed a significant reduction in the impact of OAB on quality of life. For specific symptom discomfort, BT alone reduced discomfort from nocturia and urgency incontinence, while BT+TTNS did not show a reduction in discomfort from urinary frequency. On the voiding diary, BT+TTNS led to a significant reduction in episodes of urgency urinary incontinence and nocturia, whereas BT alone showed a non-significant reduction in these episodes. Exact numerical data and effect sizes were not reported.

The intervention was safe and well-tolerated, with no observed adverse events or complications. Key limitations include the very small sample size (n=38), short follow-up period, and lack of reported absolute numbers and statistical measures for most outcomes. The authors note that further studies with larger samples and longer follow-up are warranted. For practice, this provides preliminary evidence that adding TTNS to BT may offer additional benefit for specific OAB symptoms in this population, but the evidence remains limited.

Researchers studied two treatments for overactive bladder syndrome in older women. They compared a standard behavior therapy program to that same therapy plus a treatment called transcutaneous tibial nerve stimulation (TTNS). TTNS is a non-invasive method that uses gentle electrical pulses on the ankle to influence bladder nerves.

The study included 38 older women, split into two groups of 19. One group received only behavior therapy, which involves bladder training and lifestyle changes. The other group received behavior therapy plus the TTNS treatment. Researchers measured symptoms using questionnaires and a 3-day diary where women tracked their bathroom habits.

Both groups saw improvements in their quality of life related to bladder symptoms. The group that received the combination of therapy and TTNS showed a significant reduction in episodes of urgent, accidental urine leakage and nighttime urination (nocturia) based on their diaries. The treatment was reported to be safe and well-tolerated, with no observed complications.

It is important to be cautious because this was a very small study with only 38 participants. The follow-up period was short, so we don't know if the benefits last over time. The results are promising for this specific group of older women, but larger, longer studies are needed before this combination can be widely recommended.

What this means for you:
A small, early study suggests combining nerve stimulation with therapy may help some bladder symptoms, but more research is needed.

Study Details

Study typeRct
EvidenceLevel 2
PublishedJan 2026
View Original Abstract ↓
OBJECTIVES: To evaluate the effects of transcutaneous tibial nerve stimulation (TTNS) associated with behavior therapy (BT) compared to BT alone in the treatment of Overactive Bladder Syndrome (OAB) in older women. STUDY DESIGN: Randomized controlled clinical trial in two groups, G1 that received BT (n = 19) and G2 with the addition of TTNS (n = 19). MAIN OUTCOME MEASURES: The variables analyzed were impact on quality of live (QOL) and degree of discomfort of the symptoms of OAB by International Consultation on Incontinence Questionnaire Overactive Bladder (ICIQ-OAB) and voiding habit by a 3-day voiding diary (VD). The assessments were conducted at the beginning and the end of the treatment. RESULTS: Both groups showed a significant reduction in the impact of QOL by ICIQ-OAB. The G1 (BT) reduced the discomfort of nocturia symptoms and urgency urinary incontinence, while in G2 (BT+TTNS), it just did not present a reduction in the discomfort of urinary frequency by ICIQ-OAB. In the VD, despite G1 presenting an episode reduction of urgency urinary incontinence and nocturia, it showed no significant difference. In the G2, the same variables had significant reduction. CONCLUSION: Behavioral therapy reduced OAB symptoms and discomfort in older women, but its combination with TTNS led to greater improvements, particularly in urgency and nocturia. TTNS was safe, well tolerated, and enhanced quality of life, although further studies with larger samples and longer follow-up are warranted. No adverse events or complications were observed, supporting the safety and tolerability of TTNS in older women with OAB.
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