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Yoshida K. Clinical and Phenomenological Characteristics of Patients with Task-Specific Lingual Dystonia: Possible Association with Occupation. Front Neurol. 2017;8:649doi: 10.3389/fneur.2017.00649.
Yoshida, K. (2017). Clinical and Phenomenological Characteristics of Patients with Task-Specific Lingual Dystonia: Possible Association with Occupation. Frontiers in neurology, 8649. https://doi.org/10.3389/fneur.2017.00649
Yoshida, Kazuya. "Clinical and Phenomenological Characteristics of Patients with Task-Specific Lingual Dystonia: Possible Association with Occupation." Frontiers in neurology vol. 8 (2017): 649. doi: https://doi.org/10.3389/fneur.2017.00649
Yoshida K. Clinical and Phenomenological Characteristics of Patients with Task-Specific Lingual Dystonia: Possible Association with Occupation. Front Neurol. 2017 Dec 11;8:649. doi: 10.3389/fneur.2017.00649. eCollection 2017. PMID: 29321757; PMCID: PMC5732148.
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Front Neurol. 2017 Dec 11;8:649. doi: 10.3389/fneur.2017.00649. eCollection 2017.

Clinical and Phenomenological Characteristics of Patients with Task-Specific Lingual Dystonia: Possible Association with Occupation.

Frontiers in neurology

Kazuya Yoshida

Affiliations

  1. Department of Oral and Maxillofacial Surgery, National Hospital Organization, Kyoto Medical Center, Kyoto, Japan.

PMID: 29321757 PMCID: PMC5732148 DOI: 10.3389/fneur.2017.00649

Abstract

BACKGROUND: Lingual dystonia is a subtype of oromandibular dystonia, which is a movement disorder characterized by involuntary sustained or intermittent contraction of the masticatory and/or tongue muscles. Lingual dystonia interferes with important daily activities, such as speaking, chewing, and swallowing, resulting in vocational and social disability.

OBJECTIVE: The aim of this study was to investigate a possible relationship between occupation and the development of lingual dystonia.

METHODS: Phenomenological and clinical characteristics of 95 patients [53 females (55.8%) and 42 males (44.2%), mean age 48.0 years] with task-specific, speech-induced lingual dystonia were analyzed. Structured interviews were carried out to obtain information regarding primary occupation, including overtime work and stress during work. The factors that might have influenced the development of lingual dystonia were estimated using multivariate logistic regression analysis of the 95 patients with lingual dystonia and 95 controls [68 females (71.6%) and 27 males (28.4%), mean age 47.2 years] with temporomandibular disorders.

RESULTS: Overall, 84.2% of the patients had regular occupations; 73.8% of the patients with regular occupations reported working overtime more than twice a week, and 63.8% of them experienced stress at the workplace. Furthermore, 82.1% of the patients had engaged in occupations that required them to talk to customers or other people under stressful situations over prolonged periods of time for many years (mean: 15.6 years). The most common occupation was sales representative (17.9%), followed by telephone operator (13.7%), customer service representative (10.5%), health care worker (9.5%), waiter or waitress (5.3%), receptionist (5.3%), and cashier (5.3%). Twenty-nine patients (30.5%) had tardive lingual dystonia. Logistic regression analyses revealed that frequent requirements for professional speaking (

CONCLUSION: Professions in which conversations in stressful situations are unavoidable may trigger lingual dystonia. Therefore, speech-induced lingual dystonia can be regarded as occupational dystonia in certain cases.

Keywords: lingual dystonia; occupation; occupational dystonia; oromandibular dystonia; task-specificity; tongue

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