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Titolo:
Controlled study of EMG activity of the jaw closers and openers during mastication in patients with myasthenia gravis
Autore:
van der Bilt, A; Weijnen, FG; Bosman, F; van der Glas, HW; Kuks, JBM;
Indirizzi:
Univ Utrecht, Med Ctr, Dept Oral & Maxillofacial Surg & Prosthodont & Sp, NL-3508 AB Utrecht, Netherlands Univ Utrecht Utrecht Netherlands NL-3508 AB 3508 AB Utrecht, Netherlands Acad Ziekenhuis, Dept Neurol, Groningen, Netherlands Acad Ziekenhuis Groningen Netherlands pt Neurol, Groningen, Netherlands
Titolo Testata:
EUROPEAN JOURNAL OF ORAL SCIENCES
fascicolo: 3, volume: 109, anno: 2001,
pagine: 160 - 164
SICI:
0909-8836(200106)109:3<160:CSOEAO>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
MUSCLE; DYSPHAGIA; FORCE;
Keywords:
myasthenia gravis; mastication; bulbar; electromyography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: van der Bilt, A Univ Utrecht, Med Ctr, Dept Oral & Maxillofacial Surg & Prosthodont & Sp, POB 85060, NL-3508 AB Utrecht, Netherlands Univ Utrecht POB85060 Utrecht Netherlands NL-3508 AB nds
Citazione:
A. van der Bilt et al., "Controlled study of EMG activity of the jaw closers and openers during mastication in patients with myasthenia gravis", EUR J OR SC, 109(3), 2001, pp. 160-164

Abstract

Mastication was evaluated in patients with bulbar myasthenia gravis and compared with that of patients with ocular myasthenia gravis, patients in remission who previously suffered from bulbar symptoms, and healthy controls. Bulbar myasthenia gravis may impair mastication due to weakness of the masticatory muscles. The aim of the study was to objectively evaluate the influence of myasthenia gravis on mastication. The subjects chewed a piece of breakfast cake and chewed 1 min on a piece of chewing gum. Surface EMG of themasseter muscle, temporalis muscle and jaw opener muscles was recorded. Statistical analysis revealed that bulbar patients produced significantly less EMG activity in the closing phase of a chewing cycle in both experiments. The EMG of the masseter muscle expressed as percentage of the maximum EMG during maximal clenching showed significantly higher values in the bulbar group than in the other groups. This was not found for the temporalis muscle. It was suggested that bulbar patients use a strategy of limited effort toproduce a bolus that can be swallowed. The ocular patients and the patients in remission showed no subclinical impairments in muscle function during chewing.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 00:09:49