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Titolo:
Short latency trigemino-sternocleidomastoid response in muscles in patients with spasmodic torticollis and blepharospasm
Autore:
Quartarone, A; Girlanda, P; Di Lazzaro, V; Majorana, G; Battaglia, F; Messina, C;
Indirizzi:
Univ Messina, Policlin, Neurol Clin 2, Inst Neurol & Neurosurg Sci, I-98125 Messina, Italy Univ Messina Messina Italy I-98125 Neurosurg Sci, I-98125 Messina, Italy Catholic Univ Sacred Heart, Inst Neurol, Policlin Gemelli, I-00168 Rome, Italy Catholic Univ Sacred Heart Rome Italy I-00168 melli, I-00168 Rome, Italy
Titolo Testata:
CLINICAL NEUROPHYSIOLOGY
fascicolo: 9, volume: 111, anno: 2000,
pagine: 1672 - 1677
SICI:
1388-2457(200009)111:9<1672:SLTRIM>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLINK REFLEX; OROMANDIBULAR DYSTONIA; STIMULATION; NERVE;
Keywords:
trigeminal nerve; infraorbital nerve; exteroceptive suppression; torticollis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Quartarone, A Univ Messina, Policlin, Neurol Clin 2, Inst Neurol & Neurosurg Sci, I-98125 Messina, Italy Univ Messina Messina Italy I-98125 I-98125 Messina, Italy
Citazione:
A. Quartarone et al., "Short latency trigemino-sternocleidomastoid response in muscles in patients with spasmodic torticollis and blepharospasm", CLIN NEU, 111(9), 2000, pp. 1672-1677

Abstract

Objectives: To further elucidate the pathogenesis of focal dystonias. Methods: Short latency responses can be recorded in tonically active sternocleidomastoid muscles after stimulation of the infraorbital branch of the trigeminal nerve. Such trigemino-sternocleidomastoid response consists of abilateral positive/negative wave in the average of unrectified surface EMG, corresponding to a short period of inhibition of motor unit firing. This brain stem reflex was investigated in 10 normal subjects, in 16 patients affected by spasmodic torticollis (ST) and in 10 patients with blepharospasm (BSP). Results: All ST patients presented abnormalities of SCM responses after infraorbital nerve stimulation. The abnormalities were bilateral in all but one of the patients and were independent from previous treatment with botulinum toxin. No BSP patients showed alterations of this reflex. Conclusions: Abnormalities of brain stem interneurons which are responsible for oligosynaptic exteroceptive suppression reflexes occur specifically in ST. These findings further support the relevance of sensory inputs in thedeterminism of focal dystonias. (C) 2000 Elsevier Science Ireland Ltd. Allrights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 22:15:27