title: Percutaneous tibial nerve stimulation as neuromodulative treatment of chronic pelvic pain.
abstract: OBJECTIVE
  Neuromodulative therapies have been used with moderate success in patients with chronic pelvic pain. Intermittent Percutaneous Tibial Nerve Stimulation (PTNS) is a new, minimally invasive treatment option, which has shown to significantly decrease accompanying pain complaints in patients with lower urinary tract dysfunction, such as urge incontinence or urgency/frequency. In our study, we evaluate the objective results of PTNS in patients with chronic pelvic pain as their main complaint.
  
  
  METHODS
  In a prospective multicentre trial PTNS was evaluated in 33 patients with chronic pelvic pain. Effects were recorded by Visual Analogue Scale (VAS) for pain diaries, the McGill pain questionnaire and the SF-36 general quality of life questionnaire at baseline and after 12 weeks of treatment. Subjective (patients' request to continue chronic treatment to keep the obtained success) and objective responses (decrease in mean VAS >50% and VAS <3 after treatment) were evaluated.
  
  
  RESULTS
  A subjective response was seen in 42% of all patients. In seven patients (21%) mean VAS decreased >50%, in six cases (18%) the decrease was >25%. After 12 weeks of treatment, seven patients (21%) ended up with a mean VAS <3. In all patients quality of life (SF-36) significantly improved, as did the total pain rate intensity (McGill).
  
  
  CONCLUSIONS
  Despite very modest overall success rates and the need for placebo-controlled studies, PTNS may have a place in the treatment of patients with chronic pelvic pain who have already tried many other therapies and are left with no further option.
authors.affiliation: Department of Urology, University Medical Center Nijmegen, Geert Grooteplein 10, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.
authors.forename: Michael R
authors.initials: MR
authors.lastname: van Balken
authors.forename: Vera
authors.initials: V
authors.lastname: Vandoninck
authors.forename: Bert J
authors.initials: BJ
authors.lastname: Messelink
authors.forename: Henk
authors.initials: H
authors.lastname: Vergunst
authors.forename: John P F A
authors.initials: JP
authors.lastname: Heesakkers
authors.forename: Frans M J
authors.initials: FM
authors.lastname: Debruyne
authors.forename: Bart L H
authors.initials: BL
authors.lastname: Bemelmans
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D010148:Intractable Pain / Q000628:therapy*; D010388:Pelvis; D011446:Prospective Studies; D011788:Quality of Life; D013979:Tibial Nerve; D004561:Transcutaneous Electric Nerve Stimulation; D016896:Treatment Outcome