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Revista de la Sociedad Española del Dolor

Print version ISSN 1134-8046

Abstract

DELGADO GAMBOA, A.; HERNANDEZ SANTOS, J. R.  and  TENOPALA VILLEGAS, S.. Sacral neuromodulation under retrograde technique, for chronic perineal pain. Rev. Soc. Esp. Dolor [online]. 2016, vol.23, n.6, pp.287-291. ISSN 1134-8046.  https://dx.doi.org/10.20986/resed.2016.3465/2016.

Introduction: Neurostimulation of the sacral nerves by Retrograde Technique (NESRT) is effective for the treatment of drug refractory Chronic Perineal Pain (CPP). This paper seeks to understand the usefulness of NERSR for pain control and its impact on the patients' quality of life. Materials and methods: Three cases are presented, previously selected from the Service of Pain Clinic, "20 de Noviembre" National Medical Center - Institute for Social Security and Services for State Workers (ISSSTE), Mexico D.F. from June 2006 to September 2014, with PPC: cases one and two caused by coccygodynia, and case three with pudendal nerve neuralgia, all unresponsive to conventional and interventional treatments. Sacral neuromodulation was performed in two stages: first with the placement of a Neurostimulation Positive Test Electrode (NPTP) and then by implementing NESRT. The patient was evaluated during the first and second week, then once a month for six months and finally every four months up to current time. Results: Three clinical cases with DPC, mean age 55.6 years, two female and one male, are exposed. Case one and two diagnosed with coccydynia and Case three with neuralgia of the pudendal nerve. Prior to implantation they showed severe pain (assessed with the Pain Verbal Analogue Scale (VAS 8-10 / 10), an Oswestry with disabling functional limitations (32 points equivalent to a 64 % disability) and a psychological interview with presence of average moderate depression and high anxiety (Beck Depression Questionnaire and Goldberg Health). Currently, they show mild pain (VAS 1-3/10), an Oswestry with moderate functional limitation (18 points equivalent to 35 % of disability) and average mild depression and anxiety. There was only one mild complication after implantation, due to fistula of cerebrospinal fluid (CSF). Conclusion: Spinal cord stimulation has proven to be and effective alternative treatment in dealing with DPC. By controlling pain, it improves the patients' quality of life and the psycho-emotional state shown prior to implantation.

Keywords : Retrograde technique neuromodulation; sacral neuromodulation; chronic perineal pain.

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