Insula H-coil deep transcranial magnetic stimulation in severe and enduring anorexia nervosa (SE-AN): a pilot study

Yuliya O Knyahnytska,1,2 Daniel M Blumberger,1–3 Zafiris J Daskalakis,1,2 Reza Zomorrodi,1 Allan S Kaplan1,2  1Temerty Centre for Therapeutic- Brain Intervention, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; 2Department of Psychiatry, University of Toronto, To...

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Autores principales: Knyahnytska YO, Blumberger DM, Daskalakis ZJ, Zomorrodi R, Kaplan AS
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Lenguaje:EN
Publicado: Dove Medical Press 2019
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Acceso en línea:https://doaj.org/article/9ef7554eca4d415e9c1d7961442e792d
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spelling oai:doaj.org-article:9ef7554eca4d415e9c1d7961442e792d2021-12-02T05:18:13ZInsula H-coil deep transcranial magnetic stimulation in severe and enduring anorexia nervosa (SE-AN): a pilot study1178-2021https://doaj.org/article/9ef7554eca4d415e9c1d7961442e792d2019-08-01T00:00:00Zhttps://www.dovepress.com/insula-h-coil-deep-transcranial-magnetic-stimulation-in-severe-and-end-peer-reviewed-article-NDThttps://doaj.org/toc/1178-2021Yuliya O Knyahnytska,1,2 Daniel M Blumberger,1–3 Zafiris J Daskalakis,1,2 Reza Zomorrodi,1 Allan S Kaplan1,2  1Temerty Centre for Therapeutic- Brain Intervention, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; 2Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada; 3Geriatric Division, Department of Psychiatry, University of Toronto, Toronto, Ontario, CanadaIntroduction: Anorexia nervosa (AN) is a complex disorder of unknown etiology, characterized by obsessions and compulsions around body shape, weight, and calorie intake. In the course of AN, 10%–30% will recover, while the rest will develop a treatment-resistant course with a high mortality rate due to AN-related complications. The insula is a region in the brain of considerable interest to its role in gustatory modulation, feeding behavior, and processing of interoceptive stimuli.Objective: Recent advances in the neurophysiology of AN suggest insula dysfunction as a potential biomarker for people with severe and enduring AN (SE-AN). Deep transcranial magnetic stimulation (dTMS) is of particular interest in SE-AN because of its ability to target deep areas of the brain.Design: We conducted a pilot study to investigate the feasibility and safety of insula dTMS in subjects with SE-AN.Results: We found that dTMS is a safe and well-tolerated treatment. We also found a reduction in AN-related obsessions and compulsions, as well as depression and anxiety scores from baseline to the end of the trial. Due to small sample size, the results of this study should be interpreted with great caution.Discussion: The results suggest that dTMS is safe and well tolerated and may be of some clinical interest in patients with SE-AN. However, to determine the true efficacy of dTMS for SE-AN, there is a need to conduct a randomized controlled trial comparing real versus sham dTMS in a larger number of AN subjects.Keywords: severe and enduring anorexia nervosa, deep transcranial magnetic stimulation, repetitive transcranial magnetic stimulation, insulaKnyahnytska YOBlumberger DMDaskalakis ZJZomorrodi RKaplan ASDove Medical Pressarticlesevere and enduring anorexia nervosadeep transcranial magnetic stimulationrepetitive transcranial magnetic stimulationinsulaNeurosciences. Biological psychiatry. NeuropsychiatryRC321-571Neurology. Diseases of the nervous systemRC346-429ENNeuropsychiatric Disease and Treatment, Vol Volume 15, Pp 2247-2256 (2019)
institution DOAJ
collection DOAJ
language EN
topic severe and enduring anorexia nervosa
deep transcranial magnetic stimulation
repetitive transcranial magnetic stimulation
insula
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Neurology. Diseases of the nervous system
RC346-429
spellingShingle severe and enduring anorexia nervosa
deep transcranial magnetic stimulation
repetitive transcranial magnetic stimulation
insula
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Neurology. Diseases of the nervous system
RC346-429
Knyahnytska YO
Blumberger DM
Daskalakis ZJ
Zomorrodi R
Kaplan AS
Insula H-coil deep transcranial magnetic stimulation in severe and enduring anorexia nervosa (SE-AN): a pilot study
description Yuliya O Knyahnytska,1,2 Daniel M Blumberger,1–3 Zafiris J Daskalakis,1,2 Reza Zomorrodi,1 Allan S Kaplan1,2  1Temerty Centre for Therapeutic- Brain Intervention, Centre for Addiction and Mental Health, Toronto, Ontario, Canada; 2Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada; 3Geriatric Division, Department of Psychiatry, University of Toronto, Toronto, Ontario, CanadaIntroduction: Anorexia nervosa (AN) is a complex disorder of unknown etiology, characterized by obsessions and compulsions around body shape, weight, and calorie intake. In the course of AN, 10%–30% will recover, while the rest will develop a treatment-resistant course with a high mortality rate due to AN-related complications. The insula is a region in the brain of considerable interest to its role in gustatory modulation, feeding behavior, and processing of interoceptive stimuli.Objective: Recent advances in the neurophysiology of AN suggest insula dysfunction as a potential biomarker for people with severe and enduring AN (SE-AN). Deep transcranial magnetic stimulation (dTMS) is of particular interest in SE-AN because of its ability to target deep areas of the brain.Design: We conducted a pilot study to investigate the feasibility and safety of insula dTMS in subjects with SE-AN.Results: We found that dTMS is a safe and well-tolerated treatment. We also found a reduction in AN-related obsessions and compulsions, as well as depression and anxiety scores from baseline to the end of the trial. Due to small sample size, the results of this study should be interpreted with great caution.Discussion: The results suggest that dTMS is safe and well tolerated and may be of some clinical interest in patients with SE-AN. However, to determine the true efficacy of dTMS for SE-AN, there is a need to conduct a randomized controlled trial comparing real versus sham dTMS in a larger number of AN subjects.Keywords: severe and enduring anorexia nervosa, deep transcranial magnetic stimulation, repetitive transcranial magnetic stimulation, insula
format article
author Knyahnytska YO
Blumberger DM
Daskalakis ZJ
Zomorrodi R
Kaplan AS
author_facet Knyahnytska YO
Blumberger DM
Daskalakis ZJ
Zomorrodi R
Kaplan AS
author_sort Knyahnytska YO
title Insula H-coil deep transcranial magnetic stimulation in severe and enduring anorexia nervosa (SE-AN): a pilot study
title_short Insula H-coil deep transcranial magnetic stimulation in severe and enduring anorexia nervosa (SE-AN): a pilot study
title_full Insula H-coil deep transcranial magnetic stimulation in severe and enduring anorexia nervosa (SE-AN): a pilot study
title_fullStr Insula H-coil deep transcranial magnetic stimulation in severe and enduring anorexia nervosa (SE-AN): a pilot study
title_full_unstemmed Insula H-coil deep transcranial magnetic stimulation in severe and enduring anorexia nervosa (SE-AN): a pilot study
title_sort insula h-coil deep transcranial magnetic stimulation in severe and enduring anorexia nervosa (se-an): a pilot study
publisher Dove Medical Press
publishDate 2019
url https://doaj.org/article/9ef7554eca4d415e9c1d7961442e792d
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