Hypnic jerks (HJs) are physiological, non-periodic, myoclonic bodily jerks, occurring mainly at sleep onset [1]. HJs occasionally reach abnormal proportions in frequency and degree (intensified HJs) impeding to fall or stay asleep [2]. In a recent video-polysomnographic (VPSG) study, four motor patterns of HJs have been recognized in 10 patients with intensified HJs and comorbid disorders: startle reflex, reticular reflex myoclonus, dystonic myoclonus and pyramidal myoclonus patterns [3]. We describe a further motor pattern of HJs, recorded through a nocturnal VPSG in a healthy 35-year-old man with a long history of sleep-onset insomnia due to involuntary jerks of the trunk and limbs accompanied by a sensation of ‘petrified head’. The patient was diagnosed with intensified HJs and received clonazepam with an improvement of jerks and insomnia.

Hypnic jerks: neurophysiological characterization of a new motor pattern / CALANDRA BUONAURA, Giovanna; Alessandria, Maria; Liguori, Rocco; Lugaresi, E.; Provini, Federica. - In: SLEEP MEDICINE. - ISSN 1389-9457. - STAMPA. - 15:6(2014), pp. 725-727. [10.1016/j.sleep.2014.01.024]

Hypnic jerks: neurophysiological characterization of a new motor pattern.

CALANDRA BUONAURA, GIOVANNA;ALESSANDRIA, MARIA;LIGUORI, ROCCO;PROVINI, FEDERICA
2014

Abstract

Hypnic jerks (HJs) are physiological, non-periodic, myoclonic bodily jerks, occurring mainly at sleep onset [1]. HJs occasionally reach abnormal proportions in frequency and degree (intensified HJs) impeding to fall or stay asleep [2]. In a recent video-polysomnographic (VPSG) study, four motor patterns of HJs have been recognized in 10 patients with intensified HJs and comorbid disorders: startle reflex, reticular reflex myoclonus, dystonic myoclonus and pyramidal myoclonus patterns [3]. We describe a further motor pattern of HJs, recorded through a nocturnal VPSG in a healthy 35-year-old man with a long history of sleep-onset insomnia due to involuntary jerks of the trunk and limbs accompanied by a sensation of ‘petrified head’. The patient was diagnosed with intensified HJs and received clonazepam with an improvement of jerks and insomnia.
2014
Hypnic jerks: neurophysiological characterization of a new motor pattern / CALANDRA BUONAURA, Giovanna; Alessandria, Maria; Liguori, Rocco; Lugaresi, E.; Provini, Federica. - In: SLEEP MEDICINE. - ISSN 1389-9457. - STAMPA. - 15:6(2014), pp. 725-727. [10.1016/j.sleep.2014.01.024]
CALANDRA BUONAURA, Giovanna; Alessandria, Maria; Liguori, Rocco; Lugaresi, E.; Provini, Federica
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/430775
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