Dopaminergic medication unrelated myoclonus is less related to tremor in idiopathic Parkinson's disease.


Sifoglu A., Gunduz A. , Kiziltan G. , Kiziltan M. E.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, cilt.38, ss.679-682, 2017 (SCI Expanded İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 38 Konu: 4
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1007/s10072-016-2793-5
  • Dergi Adı: Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
  • Sayfa Sayıları: ss.679-682

Özet

Myoclonus in Parkinson's disease (PD) may be related or unrelated to dopaminergic medication and may share some features of cortical myoclonus. The aim of this study was to analyze clinical and electrophysiological correlates of the dopaminergic treatment unrelated myoclonus in PD patients. We included 17 PD patients with the end-of-dose myoclonus and 16 PD patients without myoclonus between January 2010 and June 2011. Surface electromyography of upper extremity muscles and long latency reflexes (LLRs) were performed. Positive or negative myoclonus with a duration of 35-100 ms was observed. Rest tremor was less frequent in the group with myoclonus. Only one PD patient with myoclonus had C reflex. Mean LLR amplitude was significantly high in PD with myoclonus compared to the group without myoclonus (p = 0.024). Dopaminergic treatment unrelated myoclonus is less related to rest tremor in PD, may be positive or negative, and exhibits similar features to cortical myoclonus.