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Tetrabenazine-Responsive Choreo-Ballism and Akathisia After Cardioversion and Coronary Angiography: A Case Report
Mostafa Fatheel1, Rami Karkout1
1Clinical Department of Neurology, Region Östergotland, Linköping, SWE.
Insights
Rare hyperkinetic movement disorders, like choreo-ballism, can occur after cardiac procedures. Early treatment with tetrabenazine (VMAT-2 inhibitor) led to sustained remission in a patient following coronary angiography.
Area of Science:
- Neurology
- Cardiology
- Pharmacology
Background:
- Hyperkinetic movement disorders are uncommon but debilitating after cardiac procedures.
- These conditions are frequently misdiagnosed.
- Choreo-ballism and akathisia are specific hyperkinetic movements.
Abstract:
Hyperkinetic movement disorders after routine cardiac procedures are rare yet disabling and often misdiagnosed. We report the case of a 76-year-old man who developed abrupt, generalized choreo-ballism with severe akathisia one day after coronary angiography. Metabolic and inflammatory serum studies were unremarkable, brain magnetic resonance imaging (MRI) demonstrated no acute causative lesion, including no basal ganglia abnormality, and cerebrospinal fluid (CSF) analysis was non-inflammatory with negative infectious, autoimmune, and paraneoplastic testing. Low-dose tetrabenazine produced rapid (>80%) and sustained remission, permitting drug discontinuation after 16 months without relapse. When choreo-ballism emerges after cardiac interventions, transient basal ganglia dysfunction related to peri-procedural hypoxia or contrast neurotoxicity may be considered as a possible mechanism, and early vesicular monoamine transporter type 2 (VMAT-2) inhibition may facilitate recovery.
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