This study will recruit patients aged 18-80 with refractory gastroesophageal reflux disease (GERD). These patients had a disease course of more than six months, experienced typical symptoms such as acid reflux and heartburn, and had no symptom relief after taking a double dose of acid-suppressing medication for eight consecutive weeks. All eligible participants will undergo Endoscopic Cardial Constriction Ligation (ECCL) using a disposable endoscope. The procedure will follow a standardized protocol: mucosal and muscle layers of the cardia will be ligated at the lesser curvature, posterior wall, and greater curvature, with the ligated tissue at the greater curvature secured by a hemostatic clip. All patients will receive acid-suppressing therapy post-surgery and will be followed up at three and six months. The follow-ups will assess their GERD-Q scores, symptom relief, and incidence of complications.
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Change in GERD-Q Score
Timeframe: From baseline before the procedure to 6 months post-procedure