Efficacy of cranial electrotherapy stimulation in patients with burning mouth syndrome: a randomized, controlled, double-blind pilot study

BackgroundThe Burning mouth syndrome (BMS) is a chronic pain syndrome characterized by a burning sensation in the oral mucous membranes. The etiology and pathophysiology of BMS is largely unexplained. To date, there is no evidence-based treatment strategy for BMS. Cranial electrical stimulation (CES...

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Main Authors: Annalena Palmer, Till Hamann, Jan Liese, Britta Müller, Peter Kropp, Tim P. Jürgens, Florian Rimmele
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-02-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2024.1343093/full
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author Annalena Palmer
Till Hamann
Jan Liese
Britta Müller
Peter Kropp
Tim P. Jürgens
Tim P. Jürgens
Florian Rimmele
author_facet Annalena Palmer
Till Hamann
Jan Liese
Britta Müller
Peter Kropp
Tim P. Jürgens
Tim P. Jürgens
Florian Rimmele
author_sort Annalena Palmer
collection DOAJ
description BackgroundThe Burning mouth syndrome (BMS) is a chronic pain syndrome characterized by a burning sensation in the oral mucous membranes. The etiology and pathophysiology of BMS is largely unexplained. To date, there is no evidence-based treatment strategy for BMS. Cranial electrical stimulation (CES) represents a non-invasive treatment option with a low side effect profile that is approved for the treatment of pain, depression, anxiety disorder and insomnia. It has shown efficacy in studies for chronic pain such as fibromyalgia and neuropathic pain after spinal cord injury. This study aimed to investigate the therapeutic effectiveness of CES in combination with local transcutaneous electrical nerve stimulation (TENS) as an adjunct therapy in patients with BMS compared to sham stimulation.MethodsThis randomized, double-blind, sham-controlled pilot study enrolled 22 patients, aged 18 years and over, with the diagnosis of BMS meeting the ICHD-3 criteria from August 2020 to June 2021. The study duration was 4 weeks (28 days) per participant. After randomization, the active group participants (n = 11) received a 100 μA CES treatment for 60 min a day whereas the devices in the Sham group did not emit electricity. Simple linear regression was used to determine whether the interventions promoted significant differences in pain intensity.ResultsThe linear regression showed that the period of stimulation significantly predicted decrease in the intensity of pain in the active group [β = −0.036; t(26) = −7.219; p < 0.001] as in the sham group [β = −0.026; t(26) = −2.56; p < 0.017]. With the applied cutoff of 30% pain reduction within the stimulation period, both the active and sham groups had 36% responders (n = 4) (Fisher’s exact test, p = 1.00). In both groups (active stimulation and sham group), a significant decrease in the intensity of pain, somatic symptoms and an improvement in sleep quality over the study period was observed. Subjects reported no adverse events during the study.ConclusionAlthough CES is an easily applicable and safe therapeutic option for chronic facial pain, active stimulation was not superior to sham stimulation. Among other reasons, this could be due to the short double-blinded treatment period, duration of the daily stimulation session or the small sample size.
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spelling doaj.art-8ad77f030d744d28980da27956cac24f2024-02-14T11:52:08ZengFrontiers Media S.A.Frontiers in Neurology1664-22952024-02-011510.3389/fneur.2024.13430931343093Efficacy of cranial electrotherapy stimulation in patients with burning mouth syndrome: a randomized, controlled, double-blind pilot studyAnnalena Palmer0Till Hamann1Jan Liese2Britta Müller3Peter Kropp4Tim P. Jürgens5Tim P. Jürgens6Florian Rimmele7Department of Neurology, Headache Centre North-East, University Medical Centre Rostock, Rostock, GermanyDepartment of Neurology, Headache Centre North-East, University Medical Centre Rostock, Rostock, GermanyDepartment of Oral, Maxillofacial and Facial Plastic Surgery, University Medical Centre Rostock, Rostock, GermanyInstitute of Medical Psychology and Medical Sociology, University Medical Centre Rostock, Rostock, GermanyInstitute of Medical Psychology and Medical Sociology, University Medical Centre Rostock, Rostock, GermanyDepartment of Neurology, Headache Centre North-East, University Medical Centre Rostock, Rostock, GermanyKMG Hospital Güstrow, Güstrow, GermanyDepartment of Neurology, Headache Centre North-East, University Medical Centre Rostock, Rostock, GermanyBackgroundThe Burning mouth syndrome (BMS) is a chronic pain syndrome characterized by a burning sensation in the oral mucous membranes. The etiology and pathophysiology of BMS is largely unexplained. To date, there is no evidence-based treatment strategy for BMS. Cranial electrical stimulation (CES) represents a non-invasive treatment option with a low side effect profile that is approved for the treatment of pain, depression, anxiety disorder and insomnia. It has shown efficacy in studies for chronic pain such as fibromyalgia and neuropathic pain after spinal cord injury. This study aimed to investigate the therapeutic effectiveness of CES in combination with local transcutaneous electrical nerve stimulation (TENS) as an adjunct therapy in patients with BMS compared to sham stimulation.MethodsThis randomized, double-blind, sham-controlled pilot study enrolled 22 patients, aged 18 years and over, with the diagnosis of BMS meeting the ICHD-3 criteria from August 2020 to June 2021. The study duration was 4 weeks (28 days) per participant. After randomization, the active group participants (n = 11) received a 100 μA CES treatment for 60 min a day whereas the devices in the Sham group did not emit electricity. Simple linear regression was used to determine whether the interventions promoted significant differences in pain intensity.ResultsThe linear regression showed that the period of stimulation significantly predicted decrease in the intensity of pain in the active group [β = −0.036; t(26) = −7.219; p < 0.001] as in the sham group [β = −0.026; t(26) = −2.56; p < 0.017]. With the applied cutoff of 30% pain reduction within the stimulation period, both the active and sham groups had 36% responders (n = 4) (Fisher’s exact test, p = 1.00). In both groups (active stimulation and sham group), a significant decrease in the intensity of pain, somatic symptoms and an improvement in sleep quality over the study period was observed. Subjects reported no adverse events during the study.ConclusionAlthough CES is an easily applicable and safe therapeutic option for chronic facial pain, active stimulation was not superior to sham stimulation. Among other reasons, this could be due to the short double-blinded treatment period, duration of the daily stimulation session or the small sample size.https://www.frontiersin.org/articles/10.3389/fneur.2024.1343093/fullfacial painheadacheburning mouth syndrome (BMS)cranial electrotherapy stimulation (CES)transcutaneous electrical nerve stimulation (TENS)Glossodynia
spellingShingle Annalena Palmer
Till Hamann
Jan Liese
Britta Müller
Peter Kropp
Tim P. Jürgens
Tim P. Jürgens
Florian Rimmele
Efficacy of cranial electrotherapy stimulation in patients with burning mouth syndrome: a randomized, controlled, double-blind pilot study
Frontiers in Neurology
facial pain
headache
burning mouth syndrome (BMS)
cranial electrotherapy stimulation (CES)
transcutaneous electrical nerve stimulation (TENS)
Glossodynia
title Efficacy of cranial electrotherapy stimulation in patients with burning mouth syndrome: a randomized, controlled, double-blind pilot study
title_full Efficacy of cranial electrotherapy stimulation in patients with burning mouth syndrome: a randomized, controlled, double-blind pilot study
title_fullStr Efficacy of cranial electrotherapy stimulation in patients with burning mouth syndrome: a randomized, controlled, double-blind pilot study
title_full_unstemmed Efficacy of cranial electrotherapy stimulation in patients with burning mouth syndrome: a randomized, controlled, double-blind pilot study
title_short Efficacy of cranial electrotherapy stimulation in patients with burning mouth syndrome: a randomized, controlled, double-blind pilot study
title_sort efficacy of cranial electrotherapy stimulation in patients with burning mouth syndrome a randomized controlled double blind pilot study
topic facial pain
headache
burning mouth syndrome (BMS)
cranial electrotherapy stimulation (CES)
transcutaneous electrical nerve stimulation (TENS)
Glossodynia
url https://www.frontiersin.org/articles/10.3389/fneur.2024.1343093/full
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