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Blepharospasm Patients after Botulinum Toxin - Sleep Approach
Silvia Lestingi1, Lenise Kim2, Bruno da Silva Brandão Gonçalves3
1UNIFESP, Neurologia e Neurocirurgia, São Paulo, São Paulo, Brazil.
Sleep Science (Sao Paulo, Brazil)
|May 8, 2023
Summary
Blepharospasm patients often experience poor sleep quality. Botulinum toxin improved sleep in about 50% of patients, reducing sleep latency and impacting light-dark cycle synchronization.
Area of Science:
- Neurology
- Sleep Medicine
Background:
- Blepharospasm is a focal dystonia affecting the orbicularis oculi muscles.
- Nonmotor symptoms significantly impact patients' quality of life.
Purpose of the Study:
- To assess sleep disorders and circadian rhythm in Brazilian blepharospasm patients.
- To investigate the effect of botulinum toxin treatment on sleep in blepharospasm.
Main Methods:
- 51 blepharospasm patients evaluated by movement disorder specialists.
- 13 patients underwent detailed assessment including interviews, physical exams, actigraphy, and sleep diaries before and after botulinum toxin.
- Data collected 13 days prior to and 13 days after treatment.
Main Results:
- 50% decrease in sleep latency for patients reporting sleep improvement post-botulinum toxin.
- No significant changes observed in restless leg syndrome or circadian rhythm.
- Patients not experiencing sleep improvement showed poorer light-dark cycle synchronization.
Conclusions:
- Blepharospasm is associated with poor sleep quality.
- Botulinum toxin offers sleep benefits for approximately half of blepharospasm patients.
- Findings suggest a link between blepharospasm, sleep quality, and circadian rhythm regulation.
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