2023 Volume 69 Issue 2 Pages 82-88
Recently, there have been reports of the supplementary effects of interference current (IFC) stimulation on swallowing dynamics and improvement of delayed swallowing reflexes, and the use of IFC in the treatment of dysphagia is desired. We investigated the effects of IFC combined swallowing training at our clinic in 14 patients who were evaluated with VF, and examined the results of the swallowing questionnaire and changes in the delay time of laryngeal elevation (LEDT) before and after training. Results showed that the number of A items in the questionnaire decreased in 8 (57.1%) cases (no significant difference; p=0.109 > 0.05). In addition, the mean LEDT was shortened from 0.46 ± 0.19 s before training to 0.33 ± 0.09 s after training, showing a significant difference (p=0.016 < 0.05). In conclusion, swallowing training with IFC was found to be effective in improving subjective symptoms and improving the delayed induction of pharyngeal phase swallowing, which was considered difficult to improve with conventional swallowing training.
