Dysphagia limit as electromyographic test to detect swallowing disorders
DOI:
https://doi.org/10.28957/rcmfr.v31n1a5Keywords:
Deglutition disorders, dysphagia limit test, Eating Assessment Tool-10.Abstract
Objective. Determine the utility of the electromyographic ‘dysphgia limit test’ in a cohort of individuals with deglutition disorders.
Methods and materials. 64 patients were included, 32 healthy individuals, and 32 patients with detected dysphagia by the EAT-10 (Eating Assessment Tool-10) questionnaire, translated and validated to Spanish from Colombia. The dysphagia limit test was applied to all patients as a quantitative non-invasive measure to evaluate swallowing by the surface electromyography of the submentalis and cricothyroid muscles with a Cadwell Summit Sierra™ two-channel system. All subjects were instructed to swallow the total volume administered in one shot. Water was administered with a progressive increase: 5, 10, 15, 20 y 25 ml. The number of bursts required to swallow the total of water was determined. Results of the dysphagia limit test were compared between the groups. The correlation between the EAT-10 and the dysphagia limit test was established. The diagnostic exactitude of the dysphagia limit test was calculated (sensibility, specificity, predictive values, and false-positive and false-negatives proportions).
Results. A good diagnostic exactitude of the dysphagia limit test was found for the diagnosis of dysphagia. A significant correlation was established between the EAT-10 score and the dysphagia limit test.
Conclusion. The study presents a good diagnostic yield of the dysphagia limit test in the detection of deglutition disorders.
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