Objective To observe the impact of tracheostomy tube on the swallowing function in critically ill patients.Methods Bedside swallowing evaluation[Gugging swallowing screen(GUSS)and functional oral intake scale(FOIS)]of 40 critically ill patients underwent tracheostomy was performed at the times of 48 hours before and 5 days after tracheostomy tube removal.Swallowing muscle surface electromyography(EMG)such as submental and suprahyoid muscle groups during swallowing was performed as well.Results Compared with before tracheostomy tube removal,the GUSS score and FOIS grading of the patients were increased(P＜0.01),the EMG amplitude of the submental and suprahyoid muscle groups were increased and the duration of their EMG activity was decreased during swallowing after tracheostomy tube removal(P＜0.05).Conclusion The presence of tracheostomy tube can affect the safety of swallowing function in critically ill patients and impede the activity of the muscles involved in hyolaryngeal elevation during swallowing.
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