sEMG as complementary tool for VFSS: A synchronized study in patients with neurogenic oropharyngeal dysphagia
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Elsevier Ltd
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The neurogenic oropharyngeal dysphagia is a prevalent functional swallowing disorder resulting from neurological causes. The conventional diagnosis involves ionizing radiation in Videofluoroscopy Swallowing Studies (VFSS). Surface electromyography (sEMG) offers a non-invasive alternative by recording muscle activity. This research compares bolus passage timing through anatomical structures using VFSS and sEMG-related activation times. Fifty confirmed oropharyngeal dysphagia patients underwent synchronized VFSS and sEMG, evaluating muscle groups during cracker and fluid ingestion. sEMG revealed activation patterns in masseters, suprahyoid, and infrahyoid muscles, occurring before bolus passage through the mandibular line and concluding near the upper esophageal sphincter complex. sEMG identified differences in dysphagia severity (EAT-10 score), age, and diagnosis, contrasting VFSS results. Results indicate potential complementarity between sEMG and VFSS for dysphagia screening, diagnosis, and monitoring. © 2024 Elsevier Ltd
Palabras clave
Deglutition, Deglutition disorders, Electromyography, Fluoroscopy, Neurologic manifestations, Signal processing computer-assisted, Barium sulfate, Adult, Anatomical concepts, Article, Clinical article, Disease assessment, Eating Assessment Tool 10, Female, Human, Ionizing radiation, Male, iddle aged, Muscle contraction, Neurogenic oropharyngeal dysphagia, Neurologic disease, Screening test, Surface electromyography, Swallowing reflex, Upper esophagus sphincter, Videorecording