Transcutaneous Tibial Nerve Stimulation in Patients With Neurogenic Overactive Bladder After Stroke

The TTNS will be conducted unilaterally, with the patient in a supine position, using a surface electrode dual stimulation channel stimulation device. Two self-adhesive round surface electrodes will be positioned with the negative electrode 2 cm behind the medial malleolus and the positive electrode 10 cm proximal to it. The ground electrode will be placed on the ipsilateral limb. Channel 1 will provide active stimulation, while channel 2 will remain inactive.

Sham TTNS group will be stimulated using the same electrotherapy device, with patients positioned identically and electrodes placed in the same positions as in the TTNS group. The current characteristics (pulse frequency 20 Hz and pulse width 200 ms) will also remain consistent across both channels. The second channel of the stimulation device will be designated as the channel connected to the patient but without delivering stimulation.