The study lasted 20d for each patient. During the treatment, All the participants were provided with the rehabilitation therapy, which included routine rehabilitation, cognitive training, swallowing function training and nutrition support.

Particularly, due to dysphagia, the patients enrolled might face difficulty in eating. For patients who were able to finish intake via mouth by compensatory means, the consistency, type, and size of food bolus was arranged. For those who cannot acquire sufficient nutrition through oral intake, the nasogastric tube feeding (NGT) was provided.

Based on the invention above, the patients in the observation group were provided with stellate ganglion block, using 1.5ml of 2% Lidocaine hydrochloride (1ml: 0.5mg) and 500ug of Vitamin B12 (1ml: 0.5g)

The study lasted 20d for each patient. During the treatment, All the participants were provided with the rehabilitation therapy, which included routine rehabilitation, cognitive training, swallowing function training and nutrition support.

Particularly, due to dysphagia, the patients enrolled might face difficulty in eating. For patients who were able to finish intake via mouth by compensatory means, the consistency, type, and size of food bolus was arranged. For those who cannot acquire sufficient nutrition through oral intake, the nasogastric tube feeding (NGT) was provided.

Based on the invention above, the patients in the observation group were provided with Stellate ganglion block , using 1.5ml of 2% Lidocaine hydrochloride (1ml: 0.5mg) and 500ug of Vitamin B12 (1ml: 0.5g). The percutaneous approach via the paratracheal route was used for Stellate ganglion block . The operator stood on the side of the block, instructed the patient to lie supine with a thin pillow placed below the shoulders, and tilted the head 45° towards the blocked side, fully exposing the neck. Then, routine disinfection of the neck skin was performed. The puncture site was located 2.5 cm above the sternoclavicular joint and 1.5 cm lateral to the midline of the neck.

On the day 1 and day 20, Penetration-Aspiration Scale is used to assess dysphagia under Videofluoroscopic Swallowing Study, primarily evaluating the extent to which fluid food enter the airway and caused penetration or aspiration during the swallowing process. As the level increases, the severity of dysphagia also increases.The scores rang from 0 to 8

On the day 1 and day 20, the activities of daily living of patients will be assessed using the modified Barthel Index . The scale includes 10 items such as feeding, bathing, walking, dressing. Each item is rated on a 4-point scale based on the level of assistance required, with a total score of 100 points. There is a positive correlation between activities of daily living and the final score.