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Back School (BS) is a behavioural intervention designed to treat and prevent chronic low back pain. Up to date clinical research studies have shown that transcranial direct current stimulation (tDCS) is able to decrease the intensity and duration of pain modulating the activity of brain areas involved in the circuits that regulate pain and facilitating the mechanisms inhibitors descendants of pain control.
The aim of this study is to test the feasibility of combining tDCS with a behavioural intervention (i.e. BS) in subjects with chronic low back pain.
Chronic low back pain involves high individual and social costs. Back School (BS) is a behavioural intervention designed to treat and prevent the aforementioned condition. Up to date clinical research studies have shown that transcranial direct current stimulation (tDCS) can be considered a reliable tool for chronic pain. It has been shown how tDCS is able to decrease the intensity and duration of pain modulating the activity of brain areas involved in the circuits that regulate pain, such as the thalamus, and facilitating the mechanisms inhibitors descendants of pain control. The aim of this study is to test the feasibility of combining tDCS with a behavioural intervention (i.e. BS) in subjects with chronic low back pain. Specifically, we will test their effects on low back pain intensity and participation of patients' in daily activities.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| sham-tDCS + Back School | Sham Comparator | This group will receive sham-tDCS for 5 days before back school beginning. The anode will be placed on the primary motor cortex (M1) of the dominant hemisphere and the cathode on the contralateral supraorbital area. The direct current is transmitted through a pair of sponge electrodes, with a surface of 35 cm2 (7x5), soaked in saline solution and, it is generated by a constant current stimulator, with rechargeable batteries. This continuous stimulation lasted 30 seconds, with an intensity of 1 milliampere. The back school session, a behavioural intervention,will be given 10 times for 4 weeks. |
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| real-tDCS + Back School | Experimental | This group will receive continuous stimulation lasting 20 minutes daily, for 5 days before back school beginning. The back school session, a behavioural intervention,will be given 10 times for 4 weeks. Transcranial direct current stimulation (tDCS) will be administered as follows. The anode will be placed on the primary motor cortex (M1) of the dominant hemisphere and the cathode on the contralateral supraorbital area. The direct current is transmitted through a pair of sponge electrodes, with a surface of 35 cm2 (7x5), soaked in saline solution and, it is generated by a constant current stimulator, with rechargeable batteries. This continuous stimulation lasted 20 minutes, with an intensity of 1 milliampere. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| sham-tDCS + back school | Device | sham tDCS + back school |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in Visual Analogue Scale (VAS) for pain | Visual analogue scale measure for pain. Score range from 0-10. For rating overall pain: mild = 1-3, moderate = 4-7, severe = 8-10 For rating Chronic Pain: Excellent internal consistency for a single pair of rating between Numeric Pain Rating Scale and Visual Analogue Scale (r = 0.86) | 1)one day pre-tDCS treatment. 2) Every day, for 5 days pre and post 20 minutes of tDCS stimulation. 3)One day post tDCS treatment. 4)One day post 10 session of back school. 5)Follow up at one month from the back school end. |
| Measure | Description | Time Frame |
|---|---|---|
| Clinical Global Impression (CGI) | CGI is a scale consisting of two items: the severity of the disease (1=normal, 7=very serious) and the overall improvement (1=much improved, 7=much worse). | 1)One day post tDCS treatment. 2) One day post 10 session of back school. 3) Follow up at one month from the back school end. |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ferrara University Hospital | Ferrara | Italy |
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| ID | Term |
|---|---|
| D017116 | Low Back Pain |
| D059350 | Chronic Pain |
| ID | Term |
|---|---|
| D001416 | Back Pain |
| D010146 | Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
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| real-tDCS + back school |
| Device |
real tDCS + back school |
|
| Patient Global Assessment (PGA) |
PGA is a scale where the patient gives a score ranging from 1 (serious deterioration) and 7 (big improvement) relative to their pain compared to baseline |
| 1) One day post tDCS treatment. 2) One day post 10 session of back school. 3) Follow up at one month from the back school end. |
| Roland Morris Disability Questionnaire (RMDQ) | The Roland-Morris disability questionnaire is composed of 24 yes/no questions designed to assess bac 242) Excellent: RMDQ and the Quebec Back Pain Disability Scale (r= 0.77) SIP and RMDQ Assessment The Oswestry Disability Index, the Roland-Morris Disability Questionnaire, and the Quebec Back Pain | 1)One day pre-tDCS treatment. 2) One day post tDCS treatment. 3) One day post 10 session of back school. 4) Follow up at one month from the back school end. |
| The Oswestry Low Back Pain Disability Questionnaire (OLBPDQ) | 1)One day pre-tDCS treatment. 2) One day post tDCS treatment. 3) One day post 10 session of back school. 4) Follow up at one month from the back school end. |
| Euroquol (Eq-5D) | 1)One day pre-tDCS treatment. 2) One day post tDCS treatment. 3) One day post 10 session of back school. 4) Follow up at one month from the back school end. |
| The Patient Health Questionnaire - 9 (PHQ-9) | PHQ-9 assesses depression symptoms that we tracked as possible confounding factor. | 1)One day pre-tDCS treatment. 2) One day post tDCS treatment. 3) One day post 10 session of back school. 4) Follow up at one month from the back school end. |
| VAS for anxiety (0-10) | VAS for anxiety assesses anxiety symptoms that we tracked as possible confounding factor. | 1)One day pre-tDCS treatment. 2) One day post tDCS treatment. 3) One day post 10 session of back school. 4) Follow up at one month from the back school end. |
| D013568 |
| Pathological Conditions, Signs and Symptoms |