Parkinsonism & related disorders · 2019
Dystonia as complication of thalamic neurosurgery.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Picillo Marina, Paramanandam Vijayashankar, Morgante Francesca, Algarni Musleh, Olszewska Diana A, Munhoz Renato Puppi, Aziz Tipu, Pereira Erlick, Hodaie Mojgan, Kalia Suneil K, Lozano Andres M, Lynch Tim, Fasano Alfonso
Аннотация
BACKGROUND: Thalamotomy and deep brain stimulation of the ventralis intermedius nucleus are effective symptomatic treatments for tremor, irrespective of the underlying diagnosis.
METHODS AND RESULTS: Herein we describe six tremor patients (2 Parkinson's disease, 1 dystonic tremor, 2 Essential tremor plus dystonia, 1 Essential tremor plus ataxia) who underwent thalamic neurosurgery and acutely or sub-acutely developed dystonia that was permanent in three cases and could not be managed with any adjustments in the stimulation settings. Tremor response was excellent. We argue that thalamic procedures disrupted either or both the cerebello-thalamic and the cortico-striato-pallido-thalamo-cortical loop resulting in an increase of the thalamo-cortical outflow and subsequent change in the clinical picture from tremor to dystonia.
CONCLUSION: Thalamic neurosurgery might be rarely complicated by dystonia. Why some patients are more prone to develop this adverse event is still unknown and possibly related to intrinsic factors, which certainly need further studies.
METHODS AND RESULTS: Herein we describe six tremor patients (2 Parkinson's disease, 1 dystonic tremor, 2 Essential tremor plus dystonia, 1 Essential tremor plus ataxia) who underwent thalamic neurosurgery and acutely or sub-acutely developed dystonia that was permanent in three cases and could not be managed with any adjustments in the stimulation settings. Tremor response was excellent. We argue that thalamic procedures disrupted either or both the cerebello-thalamic and the cortico-striato-pallido-thalamo-cortical loop resulting in an increase of the thalamo-cortical outflow and subsequent change in the clinical picture from tremor to dystonia.
CONCLUSION: Thalamic neurosurgery might be rarely complicated by dystonia. Why some patients are more prone to develop this adverse event is still unknown and possibly related to intrinsic factors, which certainly need further studies.