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Case Report
- Spinal Myoclonus Responding to Continuous Intrathecal Morphine Pump
- Jung-Eun Ahn, Dallah Yoo, Ki-Young Jung, Jong-Min Kim, Beomseok Jeon, Myung Chong Lee
- J Mov Disord. 2017;10(3):158-160. Published online September 12, 2017
- DOI: https://doi.org/10.14802/jmd.17023
- 7,765 View
- 126 Download
- 4 Web of Science
- 3 Crossref
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Abstract
PDF - Spinal myoclonus is a sudden, brief, and involuntary movement of segmental or propriospinal muscle groups. Spinal myoclonus has occasionally been reported in patients undergoing opioid therapy, but the pathophysiology of opioid-induced myoclonus has not been elucidated yet. Here, we present two patients with spinal segmental myoclonus secondary to ischemic and radiation myelopathy. Conventional medications did not help treat persistent myoclonus in both legs. Continuous intrathecal morphine infusion was implanted for pain control in one patient, which relieved spinal myoclonus entirely. This experience led to the application of this method with a second patient, leading to the same gratifying result. Spinal myoclonus reemerged as soon as the morphine pumps were off, which confirmed the therapeutic role of opioids. In contrast to the opioid-induced myoclonus, these cases show a benefit of opioids on spinal myoclonus, which could be explained by synaptic reorganization after pathologic insults in the spinal cord.
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Citations
Citations to this article as recorded by
- Spinal segmental myoclonus following spinal surgery
Shrikant Pande, Kokcher Ang, May Win Myat, Shermyn Neo, Sivashankar Subramaniam
British Journal of Neurosurgery.2023; 37(3): 393. CrossRef - Movement Disorders Associated With Radiotherapy and Surgical Procedures
Bharath Kumar Surisetti, Shweta Prasad, Vikram Venkappayya Holla, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal
Journal of Movement Disorders.2023; 16(1): 42. CrossRef - Myoclonus: An Electrophysiological Diagnosis
Shabbir Hussain I. Merchant, Felipe Vial‐Undurraga, Giorgio Leodori, Jay A. van Gerpen, Mark Hallett
Movement Disorders Clinical Practice.2020; 7(5): 489. CrossRef
- Spinal segmental myoclonus following spinal surgery
Original Article
- Four Cases with Peripheral Trauma Induced Involuntary Movements
- Eun Joo Chung, Sang Jin Kim, Won Yong Lee, Jong Seok Bae, Eung Gyu Kim, Sung Hwa Pang
- J Mov Disord. 2010;3(2):39-41.
- DOI: https://doi.org/10.14802/jmd.10010
- 10,175 View
- 63 Download
- 3 Crossref
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Abstract
PDF
Background and Purpose Although peripheral trauma induced movement disorders have been rarely reported, diagnostic criteria for peripherally induced movement disorders (PIMD) have been established. Because preexisting subclinical movement disorders, or secondary gain for compensation and legal purposes are difficult to confirm, differential diagnosis for physicians still remains difficult.
Case Reports We present four patients developed movement disorders after relatively various intervals after traffic accident. Three patients of them showed tremor and one patient presented propriospinal myoclonus. In this report, we investigate whether peripheral trauma can lead to movement disorders and describe the relationship between peripheral injury and movement disorders in four cases.
Conclusions Injury was serious enough to develop involuntary abnormal movements with pain and the latency between injury and the onset of movements in all of cases was less than 1 year. Thus, our cases showed temporal and anatomical correlation between injury and the onset of movement disorder, strongly supporting the cause-and-effect relationship by previous diagnostic criteria for peripherally induced movement disorders.
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Citations
Citations to this article as recorded by- Diagnostic Utility of Clinical Neurophysiology in Jerky Movement Disorders: A Review from the MDS Clinical Neurophysiology Study Group
Anna Latorre, Christos Ganos, Masashi Hamada, Nicolas Phielipp, Lorenzo Rocchi, Shabbir Merchant, Marina A. Tijssen, Sterre van der Veen, Robert Chen
Movement Disorders Clinical Practice.2024;[Epub] CrossRef - Early onset of propriospinal-like myoclonus in a child following a vertebral fracture
Carlotta Facini, Marina Barsacchi, Benedetta Piccolo, Emanuela Claudia Turco, Francesco Pisani
Neurology.2016; 87(9): 956. CrossRef - Propriospinal myoclonus: The spectrum of clinical and neurophysiological phenotypes
E. Antelmi, F. Provini
Sleep Medicine Reviews.2014;[Epub] CrossRef
- Diagnostic Utility of Clinical Neurophysiology in Jerky Movement Disorders: A Review from the MDS Clinical Neurophysiology Study Group
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