Table 1. Inclusion and exclusion criteria.

Inclusion criteria	Exclusion criteria
Women over the age of 18 years with clinical diagnosis of idiopathic wet-OAB	History of neuromodulation therapy such as PTNS, TTNS
Intolerant or unresponsive to antimuscarinics or oral ß3 adrenoreceptor agonist (mirabegron)and discontinued after at least 4 weeks	Pregnancy or intention to become pregnant during the study
Able to give written, informed consent	Current vulvovaginitis or urinary tract infections or malignancy
Able to understand the procedures, advantages, and possible adverse effects	Previous urogynecological surgery within 3 months
	Anatomic or posttraumatic malformations or skin disorders of plantar medial nerve region on inner foot that do not permit application of the electrodes
	More than stage 2 according to the POP-Q
	Cardiac pacemaker or implanted defibrillator
	Neurogenic bladder, signs of neurologic abnormalities at objective examination; history of the peripheral or central neurologic pathology
	Ultrasonographic evidence of PVR volume more than 100 mL

OAB, overactive bladder; PTNS, percutaneous tibial nerve stimulation; TTNS, transcutaneous tibial nerve stimulation; POP-Q, pelvic organ prolapse quantification; PVR, post-void residual urine.