Article (Scientific journals)
Effects of Transcranial Direct Current Stimulation, Transcranial Pulsed Current Stimulation, and Their Combination on Brain Oscillations in Patients with Chronic Visceral Pain: A Pilot Crossover Randomized Controlled Study.
Thibaut, Aurore; Russo, Cristina; Hurtado-Puerto, Aura-Maria et al.
2017In Frontiers in Neurology
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Keywords :
chronic visceral pain; electroencephalogram; non-invasive brain stimulation; tDCS; tPCS
Abstract :
[en] Objective: Chronic visceral pain (CVP) syndromes are persistently painful disorders with a remarkable lack of effective treatment options. This study aimed at evaluating the effects of different neuromodulation techniques in patients with CVP on cortical activity, through electreocephalography (EEG) and on pain perception, through clinical tests. Design:A pilot crossover randomized controlled study. Settings: Out-patient. Subjects: Adults with CVP (>3 months). Methods: Participants received four interventions in a randomized order: (1) transcranial pulsed current stimulation (tPCS) and active transcranial direct current stimulation (tDCS) combined, (2) tPCS alone, (3) tDCS alone, and (4) sham condition. Resting state quantitative electroencephalography (qEEG) and pain assessments were performed before and after each intervention. Results were compared with a cohort of 47 healthy controls. Results: We enrolled six patients with CVP for a total of 21 visits completed. Compared with healthy participants, patients with CVP showed altered cortical activity characterized by increased power in theta, alpha and beta bands, and a significant reduction in the alpha/beta ratio. Regarding tES, the combination of tDCS with tPCS had no effect on power in any of the bandwidths, nor brain regions. Comparing tPCS with tDCS alone, we found that tPCS induced higher increase in power within the theta and alpha bandwidths. Conclusion: This study confirms that patients with CVP present abnormal EEG-indexed cortical activity compared with healthy controls. Moreover, we showed that combining two types of neurostimulation techniques had no effect, whereas the two interventions, when applied individually, have different neural signatures.
Disciplines :
Neurology
Author, co-author :
Thibaut, Aurore ;  Université de Liège - ULiège > GIGA : Coma Group
Russo, Cristina
Hurtado-Puerto, Aura-Maria
Morales-Quezada, Leon
Deitos, Alicia
Petrozza, John-Christopher
Freedman, Steve
Fregni, Felipe
Language :
English
Title :
Effects of Transcranial Direct Current Stimulation, Transcranial Pulsed Current Stimulation, and Their Combination on Brain Oscillations in Patients with Chronic Visceral Pain: A Pilot Crossover Randomized Controlled Study.
Publication date :
01 November 2017
Journal title :
Frontiers in Neurology
eISSN :
1664-2295
Publisher :
Frontiers Research Foundation, Lausanne, Switzerland
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 20 December 2017

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