{'fraction_non_alphanumeric': 0.0425208807896735, 'fraction_numerical': 0.03720577069096431, 'mean_word_length': 4.3795918367346935, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Transcranial Direct current Stimulation (tDCS) in Treatment of Chronic Migraine

Introduction: tDCS is a method of low intensity direct current electrical stimulation, modulating neuronal depolarization. Objective: to evaluate the efficacy of tDCS in the treatment of chronic migraine. Method: monitoring 4 women with ages varying from 27 to 46 years (mean 37.5 years), with chronic migraine according to ICHD-3 beta criteria. Randomized into 2 groups. Group 1, two patients with a mean age of 37.6 years, with pains 7 to 10 on the AVS (analogic visual scale). They received anodal tDCS, 2 mA for 20 minutes, in a primary motor area (M1), daily for 5 consecutive days, followed by a weekly stimulus for the next 3 weeks. Group 2 had two patients, with a mean age of 36 years, with pains ranging from 7 to 10 on AVS. They received SHAM, at the same frequency. Results: the patients in tDCS group had a reduction of 77% and 88% in pain intensity, in addition to a reduction of 53.3% and 46.6% in the frequency of crises. The sham group, on the other hand, had a 20% and 12.5% reduction in pain intensity, 20% and 13.3% in frequency. Conclusion: tDCS showed good efficacy in patients with chronic migraine when compared to simulated stimulation. The method proved to be safe, with no side effects in the cases monitored.