Untreatable chronic pain
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Volunteers with confirmed type I or type II diabetes mellitus (at least 5 years for type I DM) according to the diagnostic criteria of the American Diabetes Association (ADA); both sexes; age over 18 years; distal-to-proximal pain pattern in the lower limbs (stocking distribution)
Exclusion criteria
Exclusion criteria: Volunteers with metallic implants near the stimulation site; decompensated neurological and/or neuropsychiatric disorders (except for diabetic neuropathy); family history of epileptic disorders with monogenic inheritance; personal history of epilepsy, even if treated and compensated; use of illicit drugs; implantation of electrical stimulators (e.g., pacemaker); history of stroke; cognitive and/or consciousness disturbances preventing comprehension of the questionnaires; pregnancy or puerperium; prior cranial manipulation with instrumentation along the electrode path; current brain tumor; decompensated inflammatory dermatological diseases in the cranial region that prevent electrode coupling; motor abnormalities that prevent completion of the exercise protocol; sickle cell anemia; significant macrovascular obstruction with altered peripheral pulses, claudication symptoms, or venous disease grades 5 or 6; arteriovenous fistula in the lower limbs; decompensated coagulation disorders; diagnosis of another neuropathy (besides diabetic neuropathy); uncontrolled heart disease; rheumatoid arthritis
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| A reduction in points on the Brazilian version of the McGill Pain Questionnaire (MPQ) is expected to be found immediately post-intervention compared with the pre-intervention moment | — |
Secondary
| Measure | Time frame |
|---|---|
| A reduction in neuropathic pain measured by the Brazilian version of the Michigan Neuropathy Screening Instrument is expected to be found immediately post-intervention compared with the pre-intervention moment;A reduction in neuropathic pain measured by the Brazilian version of the Neuropathic Pain Symptoms Inventory is expected to be found immediately post-intervention compared with the pre-intervention moment;A reduction in neuropathic pain measured by the Brazilian version of the Pain Quality Assessment Questionnaire is expected to be found immediately post-intervention compared with the pre-intervention moment;A reduction in neuropathic pain, reflected by a decrease in points on the Neuropathic Symptoms Score, is expected to be found immediately post-intervention compared with the pre-intervention moment;An improvement in muscle functionality, reflected by a reduction in the time on the timed-up-and-go test, is expected to be found immediately post-intervention compared with the pre-intervention moment;An increase in the strength of leg extensor and flexor muscle groups, measured through peak isometric dynamometry, is expected to be found immediately post-intervention compared with the pre-intervention moment;An increase in cutaneous innervation, measured by the density of small fibers in skin biopsy, is expected to be found immediately post-intervention compared with the pre-intervention moment;A reduction in neuropathic pain, reflected by a decrease in points on the Neuropathy Impairment Score, is expected to be found immediately post-intervention compared with the pre-intervention moment | — |
Countries
Brazil
Contacts
Universidade Estadual de Campinas