Propriospinal myoclonus at sleep onset causing severe insomnia: a polysomnographic and electromyographic analysis.

摘要

Introduction A 44-year-old woman presented with a 1-month history of new-onset severe insomnia. On further questioning, she described the symptoms of muscular twitching and involuntary jerks of the trunk and limbs that occurred whenever she was in bed, drowsy and ready to fall asleep. As a result, sleep became impossible. The twitching started in her abdomen and was immediately followed by jerking of both upper and lower limbs. However, if the patient opened her eyes and became fully awake, the jerks actually disappeared. The jerks also disappeared if the patient managed to fall asleep.