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Laryngeal dystonia (LD) is a rare neurological disorder emerging in middle-aged persons as a chronic and disabling voice disorder. It is a focal dystonia affecting intrinsic laryngeal muscle control only during speech, resulting in voice breaks, effortful phonation, and strangled voice. Due to lack of awareness and lack of well-defined diagnostic criteria, it can be difficult for patients to be diagnosed and treated.

Botulinum toxin treatment improves dysphagia in patients with oculopharyngeal muscular dystrophy and sporadic inclusion body myositis.

Objective: Dysphagia can be troublesome in sporadic inclusion body myositis (sIBM) and oculopharyngeal muscular dystrophy (OPMD), but no established treatment exists. Cricopharyngeal muscle botulinum toxin injection has at case level been reported to be effective. We evaluated safety and efficacy of botulinum toxin injections in the cricopharyngeal muscle in patients with dysphagia due to sIBM or OPMD.

Oromandibular dystonia, mental distress and oro-facial dysfunction-A follow-up 8-10 years after start of treatment with botulinum toxin.

Background: Oromandibular dystonia (OMD) with involuntary jaw and tongue movements may be misdiagnosed as temporomandibular disorders (TMD) and because of the complex muscle activity and involvement of several small muscles, OMD is also considered difficult to treat.

Objectives: The aim was to evaluate OMD in patients 8-10 years after start of treatment with botulinum toxin (BoNT) by self-reported and standardised global scales and questionnaires.

Methods: Of 21 previously reported patients with OMD, 14 responded to a mail health questionnaire to describe the disease course and treatment effect as well as the overall impact of OMD by a visual analogue scale (VAS), the Patient Health Questionnaire (PHQ) for depression and anxiety, and the Jaw Functional Limitation Scale (JFLS).

Interdisciplinary recognizing and managing of drug-induced tardive oromandibular dystonia: two case reports.

Tardive dystonia is a risk factor in medical antipsychotic treatment. It often begins with repetitive involuntary jaw and tongue movements resulting in impaired chewing and detrimental effect on the dentition. The orofacial dysfunction may go unrecognized in a neurological setting.