35. Surface polyelectromyography – Principle of the method and possible use in dysphagia
Autor: | M. Bednar, E. Vanaskova, I. Vareka |
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Rok vydání: | 2014 |
Předmět: |
medicine.medical_specialty
medicine.diagnostic_test business.industry Electromyography Dysphagia Sensory Systems Masseter muscle Functional disturbance Neurology Swallowing Physiology (medical) Laryngeal Muscle medicine Physical therapy Neurology (clinical) medicine.symptom Muscle activity Head and neck business |
Zdroj: | Clinical Neurophysiology. 125:e36 |
ISSN: | 1388-2457 |
DOI: | 10.1016/j.clinph.2013.12.073 |
Popis: | Objective Surface polyelectromyography (PEMG) represents a specific application of electromyography (EMG) in the functional analysis of movement (”kinesiological EMG”) with the aid of simultaneous recordings of electrical activity from multiple muscles using specialised equipment (typically 16 channels). Swallowing is a very complex function that involves 26 muscles in head and neck. Patients and methods The authors present their experience with PEMG in 12 patients with dysphagia, particularly after a cerebrovascular accident. They used subsurface layer muscle groups (orbicularis oris, masseter muscle, submental and laryngeal muscles) and simple standardised tests (dry swallowing, swallowing 20 ml of water and drinking 100 ml of water without interruption) for a PEMG examination at the beginning and end of an intensive physiotherapy and speech therapy. Results PEMG findings are presented in practical illustrations of specific cases including software processed EMG signals. Conclusion PEMG (unlike ”classic EMG”) does not provide information to identify the clinical diagnostic units that cause a disorder. However, it facilitates, in terms of muscle activity, the characterisation of a functional disturbance (acknowledging limitations of the elusive definition for a normal movement pattern) and to monitor the evolution of functional parameters over time including its reaction to various influences (e.g. therapy). Supported by the project Ministry of Health, Czech Republic NT13725–4/2012. |
Databáze: | OpenAIRE |
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