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Percutaneous Tibial Nerve Stimulation in the Treatment of Refractory Idiopathic Overactive Bladder Syndrome: A
Janine Nicole Frey1, Angela Vidal1, Jörg Krebs2
1Luzerner Kantonsspital Frauenklinik, Spitalstrasse, 6000 Luzern, Switzerland.
Background:
Overactive bladder (OAB) is a syndrome defined as urinary urgency, accompanied by increased frequency and nocturia with or without urge incontinence, in the absence of urinary tract infection or other obvious pathology. The standard therapies are anticholinergic agents, selective beta-3 adrenoreceptor agonists, or intradetrusor injections of botulinum toxin (BTX-A). For patients with contraindications for BTX-A or drug therapies, percutaneous tibial nerve stimulation (PTNS) may be used. PTNS shows fewer side effects than anticholinergic drugs and costs less than BTX-A. The primary outcome of this study was to assess the efficacy of PTNS in women with refractory OAB.
Methods:
Women with refractory OAB undergoing PTNS at our tertiary referral center from 2017 to 2019 were included. The validated German Female Pelvic Floor Questionnaire and a micturition protocol were filled out before and after PTNS. PTNS was applied weekly for 12 weeks.
Results:
Improvements in OAB symptoms were seen in daily micturition frequency, urgency, and urgency incontinence from pre- to post-PTNS (p < 0.006). Impairments to quality of daily life were significantly (p < 0.0002) less severe after PTNS. There was a significant reduction in daytime voiding frequency from a median of nine to five (p < 0.0001).
Conclusions:
Substantial reductions in OAB symptoms, daily micturition frequency, urgency, and urgency incontinence were found in patients with refractory OAB after PTNS.
