All participants were given routine rehabilitation treatment by professional rehabilitation therapists, including exercise therapy, guided education, psychological therapy, acupuncture and massage therapy, to promote the development of motor and cognitive function, as well as to improve intellectual development. Besides, swallowing function training was also provided, including direct training, indirect training, and compensatory training.The experimental group was given Stellate Ganglion Block.

All participants were given routine rehabilitation treatment by professional rehabilitation therapists, including exercise therapy, guided education, psychological therapy, acupuncture and massage therapy, to promote the development of motor and cognitive function, as well as to improve intellectual development. Besides, swallowing function training was also provided, including direct training, indirect training, and compensatory training.

All participants were given routine rehabilitation treatment by professional rehabilitation therapists, including exercise therapy, guided education, psychological therapy, acupuncture and massage therapy, to promote the development of motor and cognitive function, as well as to improve intellectual development[. Besides, swallowing function training was also provided, including direct training, indirect training, and compensatory training, as follows The mendelson maneuver: performed 5 days per week, twice per day, 5-10 minutes each time.

Cold stimulation of the pharynx: performed every day, twice per day, 3-5 minutes each time.

Passive head extension: to stretch the submental muscle for 2-3 seconds, with upward resistance applied to the lower cheek for no less than 5 times a day and no less than 5 minutes each time.

Direct feeding training: with powdered milk, once a day, 5 days a week.](streamdown:incomplete-link)

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.

During Dysphagia-Functional Oral Intake Scale assessment, evaluators engage in communication with the patient, conduct observations, and make records to assess the patient's oral intake ability. The Functional Oral Intake Scale assessment form includes seven levels of scoring, ranging from level 1 to level 7, the increasing of scores indicating a progressive improvement in the patient's oral intake ability.