Focused Ultrasound Thalamotomy Sensory Side Effects Follow the Thalamic Structural Homunculus.

Journal

Neurology. Clinical practice
ISSN: 2163-0402
Titre abrégé: Neurol Clin Pract
Pays: United States
ID NLM: 101577149

Informations de publication

Date de publication:
Aug 2021
Historique:
received: 25 06 2020
accepted: 24 09 2020
entrez: 6 9 2021
pubmed: 7 9 2021
medline: 7 9 2021
Statut: ppublish

Résumé

Focused ultrasound thalamotomy is an effective treatment for tremor; however, side effects may occur. The purpose of the present study was to investigate the spatial relationship between thalamotomies and specific sensory side effects and their functional connectivity with somatosensory cortex and relationship to the medial lemniscus (ML). Sensory adverse effects were categorized into 4 groups based on the location of the disturbance: face/mouth/tongue numbness/paresthesia, hand-only paresthesia, hemibody/limb paresthesia, and dysgeusia. Then, areas of significant risk (ASRs) for each category were defined using voxel-wise mass univariate analysis and overlaid on corresponding odds ratio maps. The ASR associated with the maximum risk was used as a region of interest in a normative functional connectome to determine side effect-specific functional connectivity. Finally, each ASR was overlaid on the ML derived from normative template. Of 103 patients, 17 developed sensory side effects after thalamotomy persisting 3 months after the procedures. Lesions producing sensory side effects extended posteriorly into the principle sensory nucleus of the thalamus or below the thalamus in the ML. The topography of sensory adverse effects followed the known somatotopy of the ML and the sensory nucleus. Functional connectivity patterns between each sensory-specific thalamic seed and the primary somatosensory areas supported the role of the middle insula in processing of gustatory information and in multisensory integration. Distinct regions in the sensory thalamus and its afferent connections rise to specific sensory disturbances. These findings demonstrate the relationship between the sensory thalamus, ML, and bilateral sensory cortical areas.

Identifiants

DOI: 10.1212/CPJ.0000000000001013 PMID: 34484947 PMC: PMC8382439
pubmed: 34484947
doi: 10.1212/CPJ.0000000000001013
pii: NEURCLINPRACT2020060475
pmc: PMC8382439
doi:

Types de publication

Journal Article

Langues

eng

Pagination

e497-e503

Informations de copyright

© 2021 American Academy of Neurology.

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Auteurs

Michelle Paff (M)

University Health Network (MP, AB, JG, GJBE, CTC, AL, WK, AML), Toronto; Joint Department of Medical Imaging (AB, WK), University of Toronto; Edmond J. Safra Program in Parkinson's Disease (AF), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, and Division of Neurology (AF), University of Toronto; Krembil Brain Institute (AF); Division of Neurosurgery (MLS), Sunnybrook Health Sciences Center, University of Toronto; and Division of Neurosurgery (AML), Department of Surgery, Toronto Western Hospital and University of Toronto, Ontario, Canada.

Alexandre Boutet (A)

University Health Network (MP, AB, JG, GJBE, CTC, AL, WK, AML), Toronto; Joint Department of Medical Imaging (AB, WK), University of Toronto; Edmond J. Safra Program in Parkinson's Disease (AF), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, and Division of Neurology (AF), University of Toronto; Krembil Brain Institute (AF); Division of Neurosurgery (MLS), Sunnybrook Health Sciences Center, University of Toronto; and Division of Neurosurgery (AML), Department of Surgery, Toronto Western Hospital and University of Toronto, Ontario, Canada.

Jürgen Germann (J)

University Health Network (MP, AB, JG, GJBE, CTC, AL, WK, AML), Toronto; Joint Department of Medical Imaging (AB, WK), University of Toronto; Edmond J. Safra Program in Parkinson's Disease (AF), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, and Division of Neurology (AF), University of Toronto; Krembil Brain Institute (AF); Division of Neurosurgery (MLS), Sunnybrook Health Sciences Center, University of Toronto; and Division of Neurosurgery (AML), Department of Surgery, Toronto Western Hospital and University of Toronto, Ontario, Canada.

Gavin J B Elias (GJB)

University Health Network (MP, AB, JG, GJBE, CTC, AL, WK, AML), Toronto; Joint Department of Medical Imaging (AB, WK), University of Toronto; Edmond J. Safra Program in Parkinson's Disease (AF), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, and Division of Neurology (AF), University of Toronto; Krembil Brain Institute (AF); Division of Neurosurgery (MLS), Sunnybrook Health Sciences Center, University of Toronto; and Division of Neurosurgery (AML), Department of Surgery, Toronto Western Hospital and University of Toronto, Ontario, Canada.

Clement T Chow (CT)

University Health Network (MP, AB, JG, GJBE, CTC, AL, WK, AML), Toronto; Joint Department of Medical Imaging (AB, WK), University of Toronto; Edmond J. Safra Program in Parkinson's Disease (AF), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, and Division of Neurology (AF), University of Toronto; Krembil Brain Institute (AF); Division of Neurosurgery (MLS), Sunnybrook Health Sciences Center, University of Toronto; and Division of Neurosurgery (AML), Department of Surgery, Toronto Western Hospital and University of Toronto, Ontario, Canada.
ORCID: 0000-0003-3718-0060

Aaron Loh (A)

University Health Network (MP, AB, JG, GJBE, CTC, AL, WK, AML), Toronto; Joint Department of Medical Imaging (AB, WK), University of Toronto; Edmond J. Safra Program in Parkinson's Disease (AF), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, and Division of Neurology (AF), University of Toronto; Krembil Brain Institute (AF); Division of Neurosurgery (MLS), Sunnybrook Health Sciences Center, University of Toronto; and Division of Neurosurgery (AML), Department of Surgery, Toronto Western Hospital and University of Toronto, Ontario, Canada.

Walter Kucharczyk (W)

University Health Network (MP, AB, JG, GJBE, CTC, AL, WK, AML), Toronto; Joint Department of Medical Imaging (AB, WK), University of Toronto; Edmond J. Safra Program in Parkinson's Disease (AF), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, and Division of Neurology (AF), University of Toronto; Krembil Brain Institute (AF); Division of Neurosurgery (MLS), Sunnybrook Health Sciences Center, University of Toronto; and Division of Neurosurgery (AML), Department of Surgery, Toronto Western Hospital and University of Toronto, Ontario, Canada.

Alfonso Fasano (A)

University Health Network (MP, AB, JG, GJBE, CTC, AL, WK, AML), Toronto; Joint Department of Medical Imaging (AB, WK), University of Toronto; Edmond J. Safra Program in Parkinson's Disease (AF), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, and Division of Neurology (AF), University of Toronto; Krembil Brain Institute (AF); Division of Neurosurgery (MLS), Sunnybrook Health Sciences Center, University of Toronto; and Division of Neurosurgery (AML), Department of Surgery, Toronto Western Hospital and University of Toronto, Ontario, Canada.

Michael L Schwartz (ML)

University Health Network (MP, AB, JG, GJBE, CTC, AL, WK, AML), Toronto; Joint Department of Medical Imaging (AB, WK), University of Toronto; Edmond J. Safra Program in Parkinson's Disease (AF), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, and Division of Neurology (AF), University of Toronto; Krembil Brain Institute (AF); Division of Neurosurgery (MLS), Sunnybrook Health Sciences Center, University of Toronto; and Division of Neurosurgery (AML), Department of Surgery, Toronto Western Hospital and University of Toronto, Ontario, Canada.

Andres M Lozano (AM)

University Health Network (MP, AB, JG, GJBE, CTC, AL, WK, AML), Toronto; Joint Department of Medical Imaging (AB, WK), University of Toronto; Edmond J. Safra Program in Parkinson's Disease (AF), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, and Division of Neurology (AF), University of Toronto; Krembil Brain Institute (AF); Division of Neurosurgery (MLS), Sunnybrook Health Sciences Center, University of Toronto; and Division of Neurosurgery (AML), Department of Surgery, Toronto Western Hospital and University of Toronto, Ontario, Canada.

Classifications MeSH