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Classifying pain in dystonia: a way to improve pain outcome measure in dystonia.

C. Listik, E. Listik, G. Santos, F. Vale, F. Rolim, D. Portela, N. Araújo, P. Carvalho, S. Camargos, J. Lapa, R. Otani, R. Costa, E. Barbosa, R. Cury, J. Limongi, F. Cardoso, H. Ferraz, D. Andrade (Sao Paulo, Brazil)

Meeting: 2022 International Congress

Abstract Number: 563

Keywords: Dystonia: Clinical features, Pain

Category: Dystonia: Epidemiology, Genetics, Phenomenology

Objective: To classify and better understand pain in Dystonia.

Background: Pain is an incapacitating non-motor symptom in dystonia. Evidence indicates that pain’s descending modulatory systems are impaired in dystonia. Unfortunately, information on this topic is still lacking. As a result, we do not have a straightforward way to classify or assess pain’s improvement after pharmacological, surgical, or non-invasive treatments.Pain is an incapacitating non-motor symptom in dystonia. Evidence indicates that pain’s descending modulatory systems are impaired in dystonia. Unfortunately, information on this topic is still lacking. As a result, we do not have a straightforward way to classify or assess pain’s improvement after pharmacological, surgical, or non-invasive treatments.

Method: We evaluated 73 patients in a multicentric study (with 5 different centers in Brazil) with hereditary/idiopathic dystonia of any distribution. These results are preliminary finds of this multicentric assessment. We applied the Burke-Fahn-Marsden (BFM) dystonia scale, two pain scales (the Douleur Neuropathique, DN4, and the short-form Brief Pain Inventory, BPI), and our developed classification system.

Results: Patients (53.0 ± 15.7 years, 43.1% male) had a BFM motor and disability subscores of 17.1 ± 17.4 and 4.1 ± 5.1, respectively, and 42 patients (57.5%) had chronic pain. Six patients had chronic pain non-related to dystonia, and 35 patients had chronic pain directly related to dystonia. In addition, 35 patients had a second chronic pain, three of which were aggravated by dystonia, 32 were directly related to dystonia, and one was from indeterminate causes. DN4 was 2.1 ± 1.8, and BPI pain severity 4.5 ± 2.7 interference 4.2 ± 3.4.

Conclusion: Chronic pain is prevalent in dystonic patients and is frequently related to dystonia.

Types of chronic pain

References: *This abstract was also submitted to the EAN Congress 2022

To cite this abstract in AMA style:

C. Listik, E. Listik, G. Santos, F. Vale, F. Rolim, D. Portela, N. Araújo, P. Carvalho, S. Camargos, J. Lapa, R. Otani, R. Costa, E. Barbosa, R. Cury, J. Limongi, F. Cardoso, H. Ferraz, D. Andrade. Classifying pain in dystonia: a way to improve pain outcome measure in dystonia. [abstract]. Mov Disord. 2022; 37 (suppl 2). https://www.mdsabstracts.org/abstract/classifying-pain-in-dystonia-a-way-to-improve-pain-outcome-measure-in-dystonia-2/. Accessed June 14, 2025.
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