Study: NCT06319521

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Rehabilitation therapy
Description: Rehabilitation therapy includes Diet management: Avoiding consumption of irritant foods and beverages, such as spicy foods, caffeine, alcohol, and acidic foods. Controlling portion sizes and meal timing, and adopting smaller, more frequent meals.~Lifestyle adjustments: Avoiding lying down or bending immediately after meals, maintaining a sitting or upright position for at least 2 hours. Adjusting sleeping positions by elevating the head of the bed to reduce nighttime acid reflux. Avoiding excessive exertion and managing stress levels.~Rehabilitation training: Strengthening the control of esophageal and gastric muscles through rehabilitation exercises to improve the function of the gastroesophageal sphincter and prevent gastric fluid reflux.

Intervention type: BEHAVIORAL
Group type: PLACEBO_COMPARATOR
Intervention: Rehabilitation therapy
Description: Rehabilitation therapy includes Diet management: Avoiding consumption of irritant foods and beverages, such as spicy foods, caffeine, alcohol, and acidic foods. Controlling portion sizes and meal timing, and adopting smaller, more frequent meals.~Lifestyle adjustments: Avoiding lying down or bending immediately after meals, maintaining a sitting or upright position for at least 2 hours. Adjusting sleeping positions by elevating the head of the bed to reduce nighttime acid reflux. Avoiding excessive exertion and managing stress levels.~Rehabilitation training: Strengthening the control of esophageal and gastric muscles through rehabilitation exercises to improve the function of the gastroesophageal sphincter and prevent gastric fluid reflux.

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: 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.

Intervention type: PROCEDURE
Group type: PLACEBO_COMPARATOR
Intervention: Placebo injection
Description: 1 milliliter of normal saline will be used for injection. 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.