Task-specific singing dystonia: vocal instability that technique cannot fix.

Area of Science:

• Neurology
• Otolaryngology
• Speech-Language Pathology

Background:

• Singer's dystonia is a rare focal laryngeal dystonia affecting only the singing voice during specific tasks.
• It is frequently misdiagnosed as technical singing issues like muscle tension or vocal instability.

Observation:

• This case series details four patients with singer's dystonia, comparing their distinct profiles.
• Evaluations included case history, singing assessments, laryngoscopy, laryngeal electromyography (LEMG), and spectral voice analysis.

Findings:

• Singer's dystonia is a distinct entity, separate from technical voice problems.
• Treatment outcomes varied, with some singers achieving significant symptom relief and others discontinuing singing.

Implications:

• Accurate diagnosis of singer's dystonia allows access to medical treatments, including botulinum toxin injections.
• Multidisciplinary evaluation is crucial for confirming the diagnosis and differentiating it from technique-related issues.
• Diagnosis empowers singers to adapt their repertoire and potentially continue performing.