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Teta Burst Versus 10 Hz Repetitive Transcranial Magnetic Stimulation İn Neuropathic Pain: A Sham Controlled Comparison

Not Applicable
Completed
Conditions
Neuropathic Pain
Interventions
Device: Magstim Rapid2 Magnetic Stimulator
Registration Number
NCT06197113
Lead Sponsor
Ankara City Hospital Bilkent
Brief Summary

Neuropathic pain is a common complication after spinal cord injury (SCI), which significantly affects the patient's quality of life and may be resistant to pharmacological treatment. In our study, we aimed to evaluate the efficacies of intermittent theta burst (iTBS) and high frequency (10 Hz) repetitive transcranial magnetic stimulation (rTMS) by comparing them with each other and with sham stimulation, in the treatment of neuropathic pain resistant to pharmacological treatment in patients with SCI.

Question 1: İs rTMS anda iTBS treatment, useful for pain severity and the effect of pain on daily functions, in the treatment of neuropathic pain in SCI Question 2: Are rTMS and iTBS treatments effective in depression in patients with neuropathic pain after spinal cord injury?

Detailed Description

Pharmacological treatments may be insufficient to limit neuropathic pain. Therefore, research continues for safe and effective new treatments. Transcranial magnetic stimulation (TMS) is a non-invasive brain stimulation method that modulates the cortical excitability of the motor area to which it is applied. Theta Burst stimulation (TBS) is a new rTMS method consisting of stimulation sequences in a special pattern. It stands out with its ability to deliver high pulses in a short time and its high capacity to induce cortical plasticity. Intermittent TBS (iTBS) and high frequency rTMS facilitate excitability in the motor area where it is applied, and this effect is used in pain treatment. Pain modulation with these methods has been tried in some studies. Therefore, repetitive magnetic stimulation of the motor cortex by these two methods may be good options for the treatment of neuropathic pain resistant to pharmacological treatment in patients with SCI.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
26
Inclusion Criteria
  • Between the ages of 18-65,
  • Traumatic/Non-traumatic spinal cord injury (>4 months),
  • For >3 months, despite pharmacological treatment (no dose or medication changes have been made for at least 1 month), Brief Pain Inventory (BPI)-Part 1 average pain score is ≥4/10, neuropathic pain at the injury level and/or below (DN4 ≥4 /10) patients
Exclusion Criteria
  • Pain attributed to causes other than neuropathic pain (e.g. musculoskeletal pain, pain resulting from diabetic polyneuropathy), Having a history of epilepsy, dementia, cognitive impairment, neurodegenerative disease,
  • Having a history of psychiatric illness (except reactive depression),
  • Having a lesion in the brain due to vascular, traumatic, tumoral or infectious reasons,
  • Having a history of alcoholism,
  • Having an intracranial metallic implant,
  • Having a cardiac pacemaker,
  • Pregnant patients

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Sham GroupMagstim Rapid2 Magnetic StimulatorThe patients in the sham group (n:8) were given sham stimulation with a sham coil for 10 sessions.
10 Hz rTMS groupMagstim Rapid2 Magnetic StimulatorTo the patients in the high frequency (10 Hz) rTMS (n:9) group, 110% resting motor threshold (rMT), 10 Hz frequency stimulation, 5-second stimulation, and then a total of 30 trains and 1500 pulses at 25-second intervals were applied for 15 minutes while targeting the lower extremity motor area.
iTBS groupMagstim Rapid2 Magnetic StimulatorTo the patients in iTBS group (n:9), three bursts of stimulation at 50 Hz, repeated every 200 milliseconds, were delivered for 2 seconds every 10 seconds, totaling 600 stimuli at MT intensity, applied for a duration of 200 seconds.10 sessions was applied while targeting the lower extremity motor area.
Primary Outcome Measures
NameTimeMethod
Brief Pain Inventory-Short Form (BPI-SF)Patients were evaluated with BPI-SF before the treatment, at the end of the treatment (within the first 24 hours after the 10th session) and 4 weeks after the end of the treatment.

Brief Pain Inventory-Short Form (BPI-SF) is designed to assess pain in sensory (pain intensity and severity) and reactive dimensions (impact on daily functioning). The BPI-SF consists of two sections. The first section evaluates the intensity of worst, least, average, and current pain using a numerical rating scale (NRS; 0-10). A response of 0 indicates no pain at all quot; and a response of 10 indicates pain as bad as you can imagine. The second section consists of seven questions that assess the impact of pain on general activity, mood, work, walking ability, sleep, relationships with others, and enjoyment of life. Responses are rated on a scale of 0 to 10. A response of 0 in the second section indicates 'does not interfere' and a response of 10 indicates 'completely interferes'. The second section total score is calculated by summing the scores of the seven questions, resulting in a score out of 70. The total score ranges from 0 to 70.

Secondary Outcome Measures
NameTimeMethod
Patient satisfactionIt was administered immediately after the end of treatment and 4 weeks after the end of treatment.

Patient satisfaction with treatment was evaluated using a 5-point Likert scale. 1 represented 'not satisfied at all' and 5 represented very satisfied.

The level of discomfortIt was administered immediately after the end of treatment.

4.The level of discomfort caused by the treatment was evaluated using the Visual Analog Scale (VAS). In this scale, the two ends of a 10 cm line are labeled with the extreme descriptions of the parameter to be evaluated. Although this scale is commonly used for pain assessment, it was used in our study to assess the level of discomfort. The scale ranges from 0 (no discomfort) to 10 (the most severe discomfort the patient has ever experienced in their life), and the patient is asked to mark the region that corresponds to their current condition. The distance of the marked point from the 0 point determines the patient level of discomfort.

Beck Depression Inventory (BDI)Patients were evaluated with BDI before the treatment, at the end of the treatment and 4 weeks after the end of the treatment.

The Beck Depression Inventory (BDI) is one of the most commonly used self-assessment scales to determine the level of depression. It consists of 21 items, each containing 4 options that indicate the level of the individual\'s mood. The patient selects the most appropriate expression for themselves. Each option is scored from 0 to 3, with 0 indicating the mildest and 3 indicating the most severe symptom. The scores from the 21 questions are added up to calculate the total score. The total score ranges from 0 to 63. It is classified as minimal (0-13), mild (14-19), moderate (20-28), and severe (29-63) depression. The Turkish validity and reliability of the scale were conducted. In this study, the BDI was used to assess the level of depression in patients with SCI.

Trial Locations

Locations (1)

Ankara Bilkent City Hospital

🇹🇷

Ankara, Turkey

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