Primary studies included in this systematic review

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CONECSI (COping with NEuropathiC Spinal cord Injury pain)

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Primary study

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Efficacy of cranial electrotherapy stimulation for neuropathic pain following spinal cord injury: a multi-site randomized controlled trial with a secondary 6-month open-label phase.

Journal The journal of spinal cord medicine
Year 2011
Links Pubmed DOI PubMed Central

This article is included in 4 Systematic reviews Systematic reviews (4 references)

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BACKGROUND: Chronic pain is a significant problem for many individuals following spinal cord injury (SCI). Unfortunately, SCI-related neuropathic pain has proven to be largely refractory to analgesic medications and other available treatments. Cranial electrotherapy stimulation (CES) has been effective in managing some types of pain. It involves the application of a small amount of current through the head via ear clip electrodes. OBJECTIVE: Explore the effectiveness of CES for neuropathic pain in persons with SCI and chronic pain. STUDY DESIGN: Multi-site, double-blind, sham-controlled study. PARTICIPANTS: Adults with SCI and chronic neuropathic pain at or below the level of injury were randomized to receive active or sham CES. INTERVENTION: Application of active CES or sham CES 1 hour daily for 21 days. Six-month open-label phase to assess 'as-needed' CES use. OUTCOME MEASURES: Change in pre- to post-session pain ratings as well as change in pain intensity, pain interference, pain quality, pain beliefs and coping strategies, general physical and mental health status, depressive symptomatology, perceived stress, and anxiety pre- to post-treatment. RESULTS: The active group reported a significantly greater average decrease in pain during daily treatments than the sham group (Kruskal-Wallis chi-square = 4.70, P < 0.05). During the 21-day trial, there was a significant group × time interaction for only one outcome variable; the active group showed larger pre- to post-treatment decreases in pain interference than the sham group did (F = 8.50, P < 0.01, d = 0.59). CONCLUSIONS: On average, CES appears to have provided a small but statistically significant improvement in pain intensity and pain interference with few troublesome side effects. Individual results varied from no pain relief to a great deal of relief.

Primary study

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Strengthening and optimal movements for painful shoulders (STOMPS) in chronic spinal cord injury: a randomized controlled trial.

Journal Physical therapy
Year 2011
Links Pubmed DOI

This article is included in 2 Systematic reviews Systematic reviews (2 references)

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BACKGROUND: Shoulder pain is a common problem after spinal cord injury (SCI), with negative effects on daily activities and quality of life (QOL). OBJECTIVE: The purpose of this study was to determine the effect of an exercise program and instruction to optimize performance of upper-extremity tasks on shoulder pain in people with paraplegia from SCI. METHODS: Design Eighty individuals with paraplegia from SCI and shoulder pain were randomly assigned to receive either an exercise/movement optimization intervention or an attention control intervention. The exercise/movement optimization intervention consisted of a 12-week home-based program of shoulder strengthening and stretching exercises, along with recommendations on how to optimize the movement technique of transfers, raises, and wheelchair propulsion. The attention control group viewed a 1-hour educational video. Outcome measures of shoulder pain, muscle strength (force-generating capacity), activity, and QOL were assessed at baseline, immediately after intervention, and 4 weeks later. RESULTS: Shoulder pain, as measured with the Wheelchair User's Shoulder Pain Index, decreased to one third of baseline levels after the intervention in the exercise/movement optimization group, but remained unchanged in the attention control group. Shoulder torques, most 36-Item Short-Form Health Survey questionnaire (SF-36) subscale scores, and QOL scores also were improved in the exercise/movement optimization group, but not in the attention control group. Improvements were maintained at the 4-week follow-up assessment. Limitations Many of the outcome measures were self-reported, and the participant dropout rate was high in both groups. Additional studies are needed to determine whether the results of this study can be generalized to individuals with tetraplegia. CONCLUSIONS: This home-based intervention was effective in reducing long-standing shoulder pain in people with SCI. The reduction in pain was associated with improvements in muscle strength and health-related and overall QOL.

Primary study

Unclassified

Effectiveness of transcranial direct current stimulation and visual illusion on neuropathic pain in spinal cord injury

Journal Brain : a journal of neurology
Year 2010
Links Pubmed DOI PubMed Central

This article is included in 4 Systematic reviews Systematic reviews (4 references)

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The aim of this study was to evaluate the analgesic effect of transcranial direct current stimulation of the motor cortex and techniques of visual illusion, applied isolated or combined, in patients with neuropathic pain following spinal cord injury. In a sham controlled, double-blind, parallel group design, 39 patients were randomized into four groups receiving transcranial direct current stimulation with walking visual illusion or with control illusion and sham stimulation with visual illusion or with control illusion. For transcranial direct current stimulation, the anode was placed over the primary motor cortex. Each patient received ten treatment sessions during two consecutive weeks. Clinical assessment was performed before, after the last day of treatment, after 2 and 4 weeks follow-up and after 12 weeks. Clinical assessment included overall pain intensity perception, Neuropathic Pain Symptom Inventory and Brief Pain Inventory. The combination of transcranial direct current stimulation and visual illusion reduced the intensity of neuropathic pain significantly more than any of the single interventions. Patients receiving transcranial direct current stimulation and visual illusion experienced a significant improvement in all pain subtypes, while patients in the transcranial direct current stimulation group showed improvement in continuous and paroxysmal pain, and those in the visual illusion group improved only in continuous pain and dysaesthesias. At 12 weeks after treatment, the combined treatment group still presented significant improvement on the overall pain intensity perception, whereas no improvements were reported in the other three groups. Our results demonstrate that transcranial direct current stimulation and visual illusion can be effective in the management of neuropathic pain following spinal cord injury, with minimal side effects and with good tolerability. © (2010) The Author.

Primary study

Unclassified

Effects of self-hypnosis training and EMG biofeedback relaxation training on chronic pain in persons with spinal-cord injury.

Journal The International journal of clinical and experimental hypnosis
Year 2009
Links Pubmed DOI PubMed Central

This article is included in 2 Systematic reviews Systematic reviews (2 references)

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Thirty-seven adults with spinal-cord injury and chronic pain were randomly assigned to receive 10 sessions of self-hypnosis (HYP) or EMG biofeedback relaxation (BIO) training for pain management. Participants in both treatment conditions reported substantial, but similar, decreases in pain intensity from before to after the treatment sessions. However, participants in the HYP condition, but not the BIO condition, reported statistically significant decreases in daily average pain pre- to posttreatment. These pre- to posttreatment decreases in pain reported by the HYP participants were maintained at 3-month follow-up. Participants in the HYP condition, but not the BIO condition, also reported significant pre- to posttreatment increases in perceived control over pain, but this change was not maintained at the 3-month follow-up.

Primary study

Unclassified

Effect of repetitive transcranial magnetic stimulation over the hand motor cortical area on central pain after spinal cord injury.

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Authors Kang BS , Shin HI , Bang MS
Journal Archives of physical medicine and rehabilitation
Year 2009
Links Pubmed DOI

This article is included in 4 Systematic reviews Systematic reviews (4 references)

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Kang BS, Shin HI, Bang MS. Effect of repetitive transcranial magnetic stimulation over the hand motor cortical area on central pain after spinal cord injury. OBJECTIVE: To evaluate the analgesic effect of repetitive transcranial magnetic stimulation (rTMS) applied on the hand motor cortical area in patients with spinal cord injury (SCI) who have chronic neuropathic pain at multiple sites in the body, including the lower limbs, trunk, and pelvis. DESIGN: Blinded, randomized crossover study. SETTING: University hospital outpatient setting. PARTICIPANTS: Patients (N=13) with motor complete or incomplete SCI and chronic central pain (11 completed the study). INTERVENTIONS: rTMS was applied on the hand motor cortical area using a figure-of-eight coil. One thousand stimuli were applied daily on 5 consecutive days. Real and sham rTMS were separated by 12 weeks. MAIN OUTCOME MEASURES: Numeric rating scale (NRS) for average and worst pain and the Brief Pain Inventory (BPI). RESULTS: At 1 week after the end of the rTMS period, the average NRS scores changed from 6.45+/-2.25 to 5.45+/-1.81 with real stimulation and from 6.18+/-1.83 to 5.91+/-2.07 with sham stimulation, and did not differ between treatments. The interference items of the BPI also did not differ between the real and sham rTMS. The effect of time on the NRS score for worst pain was significant with real stimulation but not with sham stimulation. CONCLUSIONS: The therapeutic efficacy of rTMS was not demonstrated when rTMS was applied to the hand motor cortical area in patients with chronic neuropathic pain at multiple sites in the body, including the lower limbs, trunk, and pelvis. However, the results for worst pain reduction suggest that further studies are required in which rTMS is applied with a more intensive stimulation protocol.

Primary study

Unclassified

Motor cortex rTMS in chronic neuropathic pain: pain relief is associated with thermal sensory perception improvement.

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Journal Journal of neurology, neurosurgery, and psychiatry
Year 2008
Links Pubmed DOI

This article is included in 2 Systematic reviews Systematic reviews (2 references)

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BACKGROUND: Improvement in sensory detection thresholds was found to be associated with neuropathic pain relief produced by epidural motor cortex stimulation with surgically implanted electrodes. OBJECTIVE: To determine the ability of repetitive transcranial magnetic stimulation (rTMS) of the motor cortex to produce similar sensory changes. METHODS: In 46 patients with chronic neuropathic pain of various origins, first-perception thresholds for thermal (cold, warm) and mechanical (vibration, pressure) sensations were quantified in the painful zone and in the painless homologue contralateral territory, before and after rTMS of the motor cortex corresponding to the painful side. Ongoing pain level was also scored before and after rTMS. Three types of rTMS session, performed at 1 Hz or 10 Hz using an active coil, or at 10 Hz using a sham coil, were compared. The relationships between rTMS-induced changes in sensory thresholds and in pain scores were studied. RESULTS: Subthreshold rTMS applied at 10 Hz significantly lowered pain scores and thermal sensory thresholds in the painful zone but did not lower mechanical sensory thresholds. Pain relief correlated with post-rTMS improvement of warm sensory thresholds in the painful zone. CONCLUSIONS: Thermal sensory relays are potentially dysfunctioning in chronic neuropathic pain secondary to sensitisation or deafferentation-induced disinhibition. By acting on these structures, motor cortex stimulation could relieve pain and concomitantly improve innocuous thermal sensory discrimination.

Primary study

Unclassified

Acupuncture for chronic shoulder pain in persons with spinal cord injury: a small-scale clinical trial.

Journal Archives of physical medicine and rehabilitation
Year 2007
Links Pubmed DOI

This article is included in 2 Systematic reviews Systematic reviews (2 references)

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OBJECTIVE: To determine the efficacy of acupuncture in the treatment of chronic musculoskeletal shoulder pain in subjects with spinal cord injury (SCI). DESIGN: Randomized, double blind (participants, evaluator), placebo (invasive sham) controlled trial. SETTING: Clinical research center. PARTICIPANTS: Seventeen manual wheelchair-using subjects with chronic SCI and chronic musculoskeletal shoulder pain. INTERVENTIONS: Participants were randomly assigned to receive 10 treatments of either acupuncture or invasive sham acupuncture (light needling of nonacupuncture points). MAIN OUTCOME MEASURE: Changes in shoulder pain intensity were measured using the Wheelchair User's Shoulder Pain Index. RESULTS: Shoulder pain decreased significantly over time in both the acupuncture and the sham acupuncture groups (P=.005), with decreases of 66% and 43%, respectively. There was no significant difference between the 2 groups (P=.364). There was, however, a medium effect size associated with the acupuncture treatment. CONCLUSIONS: There appears to be an analgesic effect or a powerful placebo effect associated with both acupuncture and sham acupuncture. There was a medium treatment effect associated with the acupuncture, which suggests that it may be superior to sham acupuncture. This observation, along with the limited power, indicates that a larger, more definitive randomized controlled trial using a similar design is warranted.

Primary study

Unclassified

The effect of a series of repetitive transcranial magnetic stimulations of the motor cortex on central pain after spinal cord injury.

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Authors Defrin R , Grunhaus L , Zamir D , Zeilig G
Journal Archives of physical medicine and rehabilitation
Year 2007
Links Pubmed DOI

This article is included in 4 Systematic reviews Systematic reviews (4 references)

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OBJECTIVE: To study the analgesic effect of repetitive transcranial magnetic stimulation (rTMS) of the motor cortex on central pain in patients with chronic spinal cord injury (SCI). DESIGN: Double-blind randomized controlled trial. Mean follow-up period was 4.5 weeks. SETTING: General hospital. PARTICIPANTS: Twelve paraplegic patients due to thoracic SCI suffering chronic central pain (11 completed the study) who were randomly selected from a list of eligible patients. INTERVENTION: Real or sham 10 daily motor rTMS treatments (500 trains at 5 Hz for 10 s; total of 500 pulses at intensity of 115% of motor threshold) using figure-of-8 coil over the vertex. MAIN OUTCOME MEASURES: Chronic pain intensity (visual analog scale [VAS], McGill Pain Questionnaire [MPQ]), pain threshold, and level of depression (Beck Depression Inventory). RESULTS: Both real and sham TMS induced a similar, significant reduction in VAS scores (P<.001) immediately after each of the 10 treatment sessions and in VAS and MPQ scores after the end of the treatment series. However, only real rTMS conferred a significant increase in heat-pain threshold (4 degrees C, P<.05) by the end of the series. Most important, the reduction in MPQ scores in the real rTMS group continued during the follow-up period. Depression scores were equally reduced in both groups but similar to pain relief, depression continued to improve at follow-up in the real rTMS group. CONCLUSIONS: Whereas the pain alleviation induced by a single rTMS treatment is probably due to placebo, patients with SCI may benefit from a series of rTMS treatments.

Primary study

Unclassified

Motor cortex rTMS restores defective intracortical inhibition in chronic neuropathic pain.

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Journal Neurology
Year 2006
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This article is included in 2 Systematic reviews Systematic reviews (2 references)

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OBJECTIVE: To assess cortical excitability changes in patients with chronic neuropathic pain at baseline and after repetitive transcranial magnetic stimulation (rTMS) of the motor cortex. METHODS: In 22 patients with unilateral hand pain of various neurologic origins and 22 age-matched healthy controls, we studied the following parameters of cortical excitability: motor threshold at rest, motor evoked potential amplitude ratio at two intensities, cortical silent period (CSP), and intracortical inhibition (ICI) and intracortical facilitation. We compared these parameters between healthy subjects and patients at baseline. We also studied excitability changes in the motor cortex corresponding to the painful hand of patients after active or sham rTMS of this cortical region at 1 or 10 Hz. RESULTS: At baseline, CSP was shortened for the both hemispheres of patients vs healthy subjects, in correlation with pain score, while ICI was reduced only for the motor cortex corresponding to the painful hand. Regarding rTMS effects, the single significant change was ICI increase in the motor cortex corresponding to the painful hand, after active 10-Hz rTMS, in correlation with pain relief. CONCLUSION: Chronic neuropathic pain was associated with motor cortex disinhibition, suggesting impaired GABAergic neurotransmission related to some aspects of pain or to underlying sensory or motor disturbances. The analgesic effects produced by motor cortex stimulation could result, at least partly, from the restoration of defective intracortical inhibitory processes.