Comparison of Two Forms of Transcutaneous Electrical Stimulation in Overactive Bladder

Experimenteel: Parasacral

Parasacral Transcutaneous Electrical Stimulation Group: participants in this group will receive two self-adhesive electrodes and will be instructed to position them in the sacral region. Current parameters will be: 10 hertz frequency, 700μs wavelength, 20 minute therapy duration, 3x frequency in the week. The treatment will be at home for 6 weeks.

Apparaat: Parasacral Transcutaneous Electrical Stimulation

Electrical stimulation with surface electrodes on the sacral roots of S3 that produce inferior urinary tract neuromodulation.

Actieve vergelijker: Posterior Tibial Nerve

Transcutaneous Posterior Tibial Nerve Stimulation Group: participants in this group will receive a neoprene ankle brace that will be connected to the electrostimulator. Current parameters will be: 10 hertz frequency, 700μs wavelength, 20 minute therapy duration, 3x frequency in the week. The treatment will be at home for 6 weeks.

Apparaat: Transcutaneous Posterior Tibial Nerve Stimulation

Electrical stimulation with surface electrodes through the activation of peripheral afferent nerves that produce inferior urinary tract neuromodulation

Efficacy of treatment in quality of life

Application of the King's Health Questionnaire (KHQ). KHQ is an instrument for measuring quality of life in people diagnosed with urinary incontinence, consisting of 30 objective questions distributed in 9 domains. In each question, values are assigned according to the intensity of the patient's complaint (0 = not applicable, 1 = no; 2 = a little / sometimes, 3 = more or less / several times, 4 = a lot / always). The final score is calculated individually for each domain and ranges from 0 to 100, the highest score being related to a poorer quality of life.

Severity of urinary incontinence

Application of the Incontinence Severity Index. It is a brief instrument, consisting of two questions regarding the frequency and amount of urinary loss. The final score obtained by multiplying the frequency scores by the amount of urinary loss allows the incontinence urinary to be classified as mild (final score 1-2), moderate (final score 3-6 ), severe (final score 8-9) and very severe (final score 12).

Severity of overactive bladder symptoms

Application of the Symptom Bother Scale. It instrument asks how bothered the patient is by the 4 hallmark symptoms of overactive bladder: urinary frequency, urgency, nocturia, and urge incontinence. Patients respond on a 6-point Likert scale ranging from 0 (not at all) to 5 (a very great deal), with a maximum possible score of 40, calculated by adding all responses.