Periodic Limb Movement Disorder

Periodic limb movement disorder (PLMD) is repetitive limb movements during sleep, mostly affecting the legs. It can disrupt sleep without the person knowing.

Table of Contents

Quick Facts

  • ICD-10: G47.61

Symptoms

  • Repetitive flexion of the legs every 20–40 seconds during sleep
  • Witnessed by bed partner
  • Daytime sleepiness
  • Non-refreshing sleep
  • Often coexists with restless legs syndrome

Diagnosis

Polysomnography (sleep study) showing periodic limb movements during sleep.

Treatment

  • Check and correct iron levels
  • Avoid caffeine, alcohol, nicotine before bed
  • Treat underlying conditions (kidney disease, neuropathy)
  • Medications: gabapentinoids, dopamine agonists (used cautiously)
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.

References

  • American Academy of Sleep Medicine. PLMD Resources.