EFFECTS OF DORSOLATERAL PREFRONTAL CORTEX tDCS ON PAIN AND FUNCTIONALITY IN PATIENTS IN HEMODIALYSIS: A RANDOMIZED CLINICAL TRIAL.
tDCS, pain, hemodialysis, functionality.
Transcranial direct current stimulation (tDCS) is a non-invasive neuromodulation technique applied through electrodes attached to the scalp in specific areas according to the objective to be achieved. tDCS is used to treat several physical and behavioral disorders, including depressive symptoms, anxiety and chronic pain. Patients with chronic renal failure (CRF) on hemodialysis present chronic pain as one of the main symptoms, interfering in quality of life and functionality. Complementary techniques for pain control are suggested for this population and tDCS can be an advantageous resource. The aim of this study is to assess the effect of anodal tDCS over the dorsolateral prefrontal cortex (DLPFC) on pain in patients with CRF undergoing hemodialysis. A double-blind randomized clinical trial will be carried out with 30 patients divided into 2 groups: active group and sham group. Ten non-consecutive sessions of tDCS with 2mA for 20 min and F3/Fp2 montage will be done. Pain, functionality, depression and anxiety will be assessed at baseline, at the end of treatment and at 2 follow-ups. This is a pioneering study using the application of tDCS in CRF patients undergoing hemodialysis. Given the applicability of tDCS in this population, we hope to identify a reduction in chronic pain, improvement in functionality and mood.