To explore the effect of low-frequency electrical stimulation of laryngeal muscles on dysphagia after stroke and its influence on quality of life.

Seventy-eight patients with dysphagia after stroke admitted to Rehabilitation Department of Xuzhou Central Hospital from August 2016 to October 2019 were randomly divided into control group and combined group, 39 cases in each group. The control group was treated with conventional swallowing training, and the combined group was treated with low-frequency electrical stimulation of laryngeal muscles on the basis of the control group. The swallowing function score, the velocity of hyoaryngeal excursion, clinical efficacy, quality of life scores before and after treatment, and adverse events during treatment were compared between the two groups.

After treatment, the video fluoroscopy swallowing test scores were higher, of which the combined group was higher (P<0.05). After treatment, the velocities of hyoid bone moving forward, hyoid bone moving up, thyroid cartilage moving forward and thyroid cartilage moving up in the two groups were faster than those before treatment, and the velocity of above hyoaryngeal excursion was faster in the combined group (P<0.05). There was a significant difference in clinical effect between the two groups, and the total effective rate of the combined group was significantly higher than that of the control group (P<0.05). After treatment, the scores of all dimensions and total scores of swallowing disorder specific quality of life scale in the two groups were increased, and the scores of all dimensions and total scores in the combined group were higher (P<0.05). The incidence of adverse events in the combined group was significantly lower than that in the control group (P<0.05).

On the basis of conventional swallowing training, low-frequency electrical stimulation of laryngeal muscles can improve the clinical efficacy and quality of life of patients with dysphagia after stroke, and effectively reduce the incidence of adverse events during treatment.