Propriospinal myoclonus after treatment with ciprofloxacin

Bart Post1, Johannes H T M Koelman, Marina A J Tijssen

  • 1Department of Neurology and Clinical Neurophysiology, Academic Medical Centre, Amsterdam, The Netherlands.

Insights

This study describes truncal myoclonus in a 55-year-old man, suggesting a link to ciprofloxacin use. Electromyography indicated propriospinal myoclonus, possibly due to altered gamma-aminobutyric acid metabolism.

Area of Science:

  • Neurology
  • Clinical Electrophysiology

Background:

  • Truncal myoclonus is a rare neurological disorder.
  • Understanding its underlying mechanisms is crucial for diagnosis and treatment.

Observation:

  • A 55-year-old male patient presented with clinical and electrophysiological features of truncal myoclonus.
  • Electromyographic analysis revealed characteristics consistent with propriospinal myoclonus.

Findings:

  • The patient's myoclonus was potentially triggered by ciprofloxacin administration.
  • This suggests a possible mechanism involving the antagonism of gamma-aminobutyric acid (GABA) metabolism by ciprofloxacin.

Implications:

  • This case highlights a potential adverse effect of ciprofloxacin on GABAergic pathways.
  • Further research is warranted to explore the relationship between fluoroquinolone antibiotics and myoclonus.
  • This finding may inform clinical practice regarding antibiotic selection in susceptible individuals.

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