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Segmental Spinal Myoclonus following a Cervical Transforaminal Epidural Steroid Injection: A Case Report.

07:00 EST 6th March 2020 | BioPortfolio

Summary of "Segmental Spinal Myoclonus following a Cervical Transforaminal Epidural Steroid Injection: A Case Report."

In clinical practice, cervical transforaminal epidural steroid injection (TFESI) is commonly used for alleviating pain. We report a case of segmental spinal myoclonus that developed after cervical transforaminal local anesthetic and steroid injection. A 39-year-old man presented involuntary movements of the bilateral upper trapezius muscles after cervical TFESI on the right C6 and C7 roots with a 5 mg dexamethasone injectate mixed with 0.5 mL of 1% lidocaine and 0.5 mL of normal saline at each level. His myoclonus was semi-rhythmic and continuously persisted at a frequency of approximately 30 episodes per minute. The myoclonus continued even at rest and during sleep. Also, it was resistive to stimulus, such as touch and voluntary action. Based on the clinical features, the patient was diagnosed as having a segmental spinal myoclonus. Clonazepam 0.25 mg was administered three times daily. The myoclonus gradually improved and resolved completely within two weeks. Segmental spinal myoclonus is one of rare complications after cervical TFESI. Clinicians should be aware of the likelihood of this potential complication.

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Name: American journal of physical medicine & rehabilitation
ISSN: 1537-7385
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