Study: NCT06304090

Intervention type: BEHAVIORAL
Group type: PLACEBO_COMPARATOR
Intervention: routine rehabilitation treatment
Description: 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.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: routine rehabilitation treatment
Description: 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.

Intervention type: PROCEDURE
Group type: PLACEBO_COMPARATOR
Intervention: Stellate ganglion block
Description: 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.

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Stellate ganglion block
Description: 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.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Lidocaine Hydrochloride
Description: The patients were provided with Stellate ganglion block , using 0.5ml 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.