Objective Evaluation of Dysphagia By definition, dysphagia is a pathological condition that precludes normal deglutition and swallowing. Consequently, food boluses may remain in the oral and/or pharyngeal recesses, ending up in the glottis and/or trachea, or may not be propulsed properly through the esophagus. There are several etiologies resulting in dysphagia. At the ... Article
Article  |   October 01, 1999
Objective Evaluation of Dysphagia
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Articles
Article   |   October 01, 1999
Objective Evaluation of Dysphagia
SIG 13 Perspectives on Swallowing and Swallowing Disorders (Dysphagia), October 1999, Vol. 8, 10-13. doi:10.1044/sasd8.3.10
SIG 13 Perspectives on Swallowing and Swallowing Disorders (Dysphagia), October 1999, Vol. 8, 10-13. doi:10.1044/sasd8.3.10
By definition, dysphagia is a pathological condition that precludes normal deglutition and swallowing. Consequently, food boluses may remain in the oral and/or pharyngeal recesses, ending up in the glottis and/or trachea, or may not be propulsed properly through the esophagus. There are several etiologies resulting in dysphagia. At the present time, neuromuscular relationships in this condition will be discussed from the investigative and treatment point of view with the advent of S-EMG.
A number of muscular parameters are relevant from the functional point of view in dysphagia. Such parameters include the following:
Surface electromyography (SEMG) is an electrophysiological motor modality which endeavors to assess the summation of action potentials (amplitude) and/or frequency spectrum of electrical conduction in living skeletal muscle, during a given activity or rest (Basmajian, 1985). The vantage point of assessment is the cutaneous level. Electrodes are placed in specific ways on the skin overlying the target muscles (Sella, 1997). The equipment, modernly computerized, can assess electrical activity and display such on the monitor in pictorial or digital display.
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