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Adding corticosteroids to the pudendal nerve block for pudendal neuralgia: a randomised, double‐blind, controlled trial
OBJECTIVE: To compare the effect of corticosteroids combined with local anaesthetic versus local anaesthetic alone during infiltrations of the pudendal nerve for pudendal nerve entrapment. DESIGN: Randomised, double‐blind, controlled trial. SETTING: Multicentre study. POPULATION: 201 patients were i...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5215631/ https://www.ncbi.nlm.nih.gov/pubmed/27465823 http://dx.doi.org/10.1111/1471-0528.14222 |
Sumario: | OBJECTIVE: To compare the effect of corticosteroids combined with local anaesthetic versus local anaesthetic alone during infiltrations of the pudendal nerve for pudendal nerve entrapment. DESIGN: Randomised, double‐blind, controlled trial. SETTING: Multicentre study. POPULATION: 201 patients were included in the study, with a subgroup of 122 women. METHODS: CT‐guided pudendal nerve infiltrations were performed in the sacrospinous ligament and Alcock's canal. There were three study arms: patients in Arm A (n = 68) had local anaesthetic alone, those in Arm B (n = 66) had local anaesthetic plus corticosteroid and those in Arm C (n = 67) local anaesthetic plus corticosteroid with a large volume of normal saline. MAIN OUTCOME MEASURES: The primary end‐point was the pain intensity score at 3 months. Patients were regarded as responders (at least a 30‐point improvement on a 100‐point visual analogue scale of mean maximum pain over a 2‐week period) or nonresponders. RESULTS: Three months’ postinfiltration, 11.8% of patients in the local anaesthetic only arm (Arm A) were responders versus 14.3% in the local anaesthetic plus corticosteroid arms (Arms B and C). This difference was not statistically significant (P = 0.62). No statistically significant difference was observed in the female subgroup between Arm A and Arms B and C (P = 0.09). No significant difference was detected for the various pain assessment procedures, functional criteria or quality‐of‐life criteria. CONCLUSIONS: Corticosteroids provide no additional therapeutic benefits compared with local anaesthetic and should therefore no longer be used. TWEETABLE ABSTRACT: Steroid infiltrations do not improve the results of local anaesthetic infiltrations in pudendal neuralgia. |
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