European journal of pain (London, England) · 2023
Ultrasound-guided percutaneous electrical nerve stimulation versus surgery for women with unilateral carpal tunnel syndrome: A randomized parallel-group trial.
Рандомизированное исследованиеСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Fernández-de-Las-Peñas César, Ortega-Santiago Ricardo, De-la-Llave-Rincón Ana I, Cleland Joshua A, Pareja Juan A, Fahandezh-Saddi-Díaz Homid, Arias-Buría José L
Аннотация
OBJECTIVE: The aim of this clinical trial was to compare the outcomes of the application of ultrasound-guided percutaneous nerve stimulation (PENS) targeting the median nerve versus surgery for improving pain and function in women with CTS.
METHODS: In this randomized parallel-group trial (ClinicalTrials.gov, NCT04246216), 70 women with CTS were randomly allocated to either PENS (n = 35) or surgery (n = 35) group. Hand pain intensity (mean pain and the worst pain experienced) was the primary outcome. Functional status and symptoms severity (Boston Carpal Tunnel Questionnaire, BCTQ) and self-perceived improvement (Global Rating of Change, GROC) were the secondary outcomes. Outcomes were assessed at baseline and 1, 3, 6 and 12 months after each intervention. Analysis was performed with intention to treat with mixed ANCOVAs adjusted for baseline outcomes.
RESULTS: Analyses showed an adjusted advantage for PENS at 1 (Δ -2.0, 95% CI -2.9 to -1.1) and 3 (Δ -1.4, 95% CI -2.3 to -0.5) months for mean pain, at 1 (Δ -2.2, 95% CI -3.3 to -1.1), 3 (Δ -1.75, 95% CI -2.9 to -0.6) and 6 (Δ -1.7, 95% CI -2.8 to -0.6) months in the worst pain intensity, and at 1 (Δ -0.95, 95% CI -1.1 to -0.8), 3 (Δ -0.55, 95% CI -0.8 to -0.3) and 6 (Δ -0.4, 95% CI -0.6 to -0.8) months in function. Both groups exhibited similar changes in symptom severity. Both groups reported similar improvement at 12 months in all outcomes. Symptoms and function improved in both groups, with PENS leading to better short-term outcomes than surgery.
CONCLUSION: This clinical trial confirms that PENS applied with current understanding of pain mechanisms in CTS is as useful as surgery in women with CTS without denervation. The potential placebo effect of both interventions should not be ignored.
SIGNIFICANCE: The application of percutaneous nerve stimulation was more effective at short-term, but similar effective at mid and long-term, than surgery in women with carpal tunnel syndrome.
METHODS: In this randomized parallel-group trial (ClinicalTrials.gov, NCT04246216), 70 women with CTS were randomly allocated to either PENS (n = 35) or surgery (n = 35) group. Hand pain intensity (mean pain and the worst pain experienced) was the primary outcome. Functional status and symptoms severity (Boston Carpal Tunnel Questionnaire, BCTQ) and self-perceived improvement (Global Rating of Change, GROC) were the secondary outcomes. Outcomes were assessed at baseline and 1, 3, 6 and 12 months after each intervention. Analysis was performed with intention to treat with mixed ANCOVAs adjusted for baseline outcomes.
RESULTS: Analyses showed an adjusted advantage for PENS at 1 (Δ -2.0, 95% CI -2.9 to -1.1) and 3 (Δ -1.4, 95% CI -2.3 to -0.5) months for mean pain, at 1 (Δ -2.2, 95% CI -3.3 to -1.1), 3 (Δ -1.75, 95% CI -2.9 to -0.6) and 6 (Δ -1.7, 95% CI -2.8 to -0.6) months in the worst pain intensity, and at 1 (Δ -0.95, 95% CI -1.1 to -0.8), 3 (Δ -0.55, 95% CI -0.8 to -0.3) and 6 (Δ -0.4, 95% CI -0.6 to -0.8) months in function. Both groups exhibited similar changes in symptom severity. Both groups reported similar improvement at 12 months in all outcomes. Symptoms and function improved in both groups, with PENS leading to better short-term outcomes than surgery.
CONCLUSION: This clinical trial confirms that PENS applied with current understanding of pain mechanisms in CTS is as useful as surgery in women with CTS without denervation. The potential placebo effect of both interventions should not be ignored.
SIGNIFICANCE: The application of percutaneous nerve stimulation was more effective at short-term, but similar effective at mid and long-term, than surgery in women with carpal tunnel syndrome.