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J Clin Neurosci. 2018 Apr;50:150-151. doi: 10.1016/j.jocn.2018.01.042. Epub 2018 Feb 1.

Stuttering in Parkinson's disease after deep brain stimulation: A note on dystonia and low-frequency stimulation.

Author information

1
Neurology Department, Hospital Egas Moniz, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal; CEDOC, Nova Medical School/Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisbon, Portugal; Champalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal. Electronic address: marcelomendoncasousa@gmail.com.
2
Neurology Department, Hospital Egas Moniz, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal.
3
Neurosurgery Department, Hospital Egas Moniz, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal; Anatomy Department, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
4
Neurosurgery Department, Hospital Egas Moniz, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal.
5
Neurology Department, Hospital Egas Moniz, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal; CEDOC, Nova Medical School/Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisbon, Portugal. Electronic address: paulobugalho@sapo.pt.

Abstract

Stuttering, a speech fluency disorder, is a rare complication of Deep Brain Stimulation (DBS) in Parkinson's Disease (PD). We report a 61 years-old patient with PD, afflicted by severe On and Off dystonia, treated with Subthalamic Nucleus DBS that developed post-DBS stuttering while on 130 Hz stimulation. Stuttering reduction was noted when frequency was changed to 80 Hz, but the previously observed dystonia improvement was lost. There are no reports in literature on patients developing stuttering with low-frequency stimulation. We question if low-frequency stimulation could have a role for managing PD's post-DBS stuttering, and notice that stuttering improvement was associated with dystonia worsening suggesting that they are distinct phenomena.

KEYWORDS:

Deep brain stimulation; Dystonia; Parkinson’s disease; Stuttering

PMID:
29396058
DOI:
10.1016/j.jocn.2018.01.042
[Indexed for MEDLINE]

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