Comparison of the Efficacy of Perineal and Intravaginal Electrical Stimulation in Women With Idiopathic Overactive Bladder

Inclusion Criteria: * Women over the age of 18 with a clinical diagnosis of idiopathic OAB * Intolerant or unresponsive to antimuscarinic or oral β3 adrenoceptor agonist (mirabegron) medications and not using them for at least 4 weeks * Ability to understand the procedures, advantages, and potential side effects * Ability to provide written, informed consent * Pelvic floor muscle (PFM) strength of 3/5 or higher (modified Oxford scale, minimum: 0 - maximum: 5) Exclusion Criteria: * Women with pure stress urinary incontinence * History of conservative treatment for OAB within the last 6 months (MI, IVES, perineal ES, etc.) * Pregnant or planning to become pregnant at the time of the study * Diagnosis of vaginal infection, urinary tract infection, or cancer * Women with urinary incontinence within the last 3 months Those who have undergone urogynecological surgery * Those with genital area disorders that may preclude the use of a vaginal probe or perineal electrode * Those diagnosed with stage 2 or higher according to the Pelvic Organ Prolapse Assessment (POP-Q) * Those with a pacemaker or implanted defibrillator * Those with neurogenic bladder or a history of neurological disease * Those with a urine residual of more than 100 ml detected by ultrasound (using an ultrasound device) * Those with allergies to condoms or lubricating gels used with a vaginal probe or perineometer